Top 10 Best Time And Material Billing Software of 2026

GITNUXSOFTWARE ADVICE

Business Finance

Top 10 Best Time And Material Billing Software of 2026

Ranked top 10 time and material billing software for service firms, with quote, invoicing, and controls comparisons covering TimeSolv, BQE CORE, BigTime.

33 min readUpdated AI-verified · Expert reviewed
How we ranked these tools
01Feature Verification

Core product claims cross-referenced against official documentation, changelogs, and independent technical reviews.

02Multimedia Review Aggregation

Analyzed video reviews and hundreds of written evaluations to capture real-world user experiences with each tool.

03Synthetic User Modeling

AI persona simulations modeled how different user types would experience each tool across common use cases and workflows.

04Human Editorial Review

Final rankings reviewed and approved by our editorial team with authority to override AI-generated scores based on domain expertise.

Read our full methodology →

Score: Features 40% · Ease 30% · Value 30%

Gitnux may earn a commission through links on this page — this does not influence rankings. Editorial policy

Time and material billing software converts timesheets, expense capture, and rate rules into client-ready quotes and invoices with enforceable controls. This ranked list targets service firms that need reliable billing throughput plus defensible WIP and audit trails, and it compares options across quoting workflows, invoice generation, and access governance rather than feature checklists.

BQE CORE is the best fit when you need controlled time approvals and invoice batches tied to profitability reporting, while BigTime is the cheapest entry if you’re focused on time-to-invoice across many active projects and Deltek Ajera works best when project accounting governance matters most for A&E firms.

Editor’s top 3 picks

Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.

Editor pick
1

BQE CORE

Invoice batch generation tied to approval status and rate-driven billing calculations.

Built for fits when service firms need controlled time approvals and batch invoice production tied to profitability reporting..

2

BigTime

Editor pick

Configurable time-to-invoice workflow that uses approved time entries, project rates, and accounting fields to generate invoice-ready output.

Built for fits when services need controlled time-to-invoice billing across many active projects..

3

Unanet AE ERP

Editor pick

Project accounting ties approved time to invoice batches and WIP reconciliation without duplicating project logic.

Built for fits when project accounting and governance matter more than minimal time-to-launch..

Comparison Table

1
BQE COREBest overall
SMB
9.4/10
Overall
2
9.2/10
Overall
3
vertical specialist
8.9/10
Overall
4
vertical specialist
8.5/10
Overall
5
8.3/10
Overall
6
vertical specialist
8.0/10
Overall
7
7.7/10
Overall
8
vertical specialist
7.4/10
Overall
9
7.1/10
Overall
10
6.8/10
Overall
#1

BQE CORE

SMB

PSA and accounting platform with time tracking, expenses, project billing, and WIP management.

9.4/10
Overall
Features9.6/10
Ease of Use9.3/10
Value9.3/10
Standout feature

Invoice batch generation tied to approval status and rate-driven billing calculations.

BQE CORE is designed for service organizations that need controlled time collection and billing output tied to projects and clients. It includes an approval workflow for time entry and supports project profitability analysis with cost rate and bill rate spread driven by role and configuration settings. Invoice generation can be batched so multiple projects can move through invoicing consistently.

A key tradeoff is that BQE CORE requires deliberate setup of roles, rates, and project templates to avoid billing mismatches during ramp-up. The best usage situation is an established service firm with a repeatable project setup process that must convert time and expenses into consistent invoices with governance and reporting.

Pros
  • +Time approval workflow with time entry audit trail
  • +Rate-driven billing calculations for cost and bill rate spread
  • +Invoice batch generation for controlled billing runs
  • +Project profitability reporting tied to labor costs
Cons
  • Role and rate setup is a heavy upfront configuration task
  • Approval and billing controls demand defined operating procedures
  • Complex project structures can increase data entry overhead
Use scenarios
  • Project accounting teams

    Approve time, then batch invoices

    Fewer billing corrections

  • Consulting finance leads

    Track profitability across projects

    Clear margin visibility

Show 2 more scenarios
  • Operations managers

    Maintain multi-currency billing rates

    More consistent invoices

    Operations can apply multi-currency rate card rules while keeping billing output consistent by role.

  • Service delivery admins

    Standardize milestone versus T&M billing

    Cleaner invoicing outcomes

    Admins can configure client projects to support milestone versus T&M hybrid invoicing patterns.

Best for: Fits when service firms need controlled time approvals and batch invoice production tied to profitability reporting.

#2

BigTime

SMB

Professional services software with time tracking, WIP, invoicing, and time and materials billing.

9.2/10
Overall
Features9.2/10
Ease of Use9.0/10
Value9.3/10
Standout feature

Configurable time-to-invoice workflow that uses approved time entries, project rates, and accounting fields to generate invoice-ready output.

BigTime centers on a governed timesheet approval workflow tied to billable hours capture and rate application for each project. Invoice batch generation can pull approved time, apply role-based billing rates, and carry accounting fields needed for downstream posting. Utilization and project reporting support oversight of labor allocation and schedule adherence for service delivery teams. Integration options typically matter most when BigTime must feed PSA-style data into finance systems rather than relying on manual exports.

A key tradeoff is that deep customization of approval hierarchy, coding rules, and reporting views takes configuration effort and ongoing admin attention. The best fit appears when service organizations run repeated client work with consistent approval steps and need repeatable billing outputs across many projects. It also fits teams that want to reduce WIP mismatches by tying labor updates to invoice and cost status reporting.

Pros
  • +Approval workflow ties timesheets to invoice-ready billable hours
  • +Role and project rate application supports consistent invoicing rules
  • +Project profitability and WIP style reporting reduces reconciliation gaps
  • +Project coding fields support finance posting requirements
Cons
  • Complex approval and coding setups take governance discipline to maintain
  • Invoice output design can require admin configuration for special cases
  • Advanced reporting usually depends on defined project and rate structure
  • Integration work may require mapping effort from existing systems
Use scenarios
  • Accounting operations teams

    Standardize invoice batches from approved time

    Fewer manual invoice corrections

  • Professional services directors

    Track labor use against utilization targets

    Better staffing decisions

Show 2 more scenarios
  • Project controllers

    Reconcile WIP from labor and costs

    Cleaner WIP alignment

    Project reporting supports cost to work status comparisons to reduce timing mismatches.

  • PSA integration teams

    Map work logs into finance systems

    Less export and rekeying

    Integration and API surface support data exchange for time, project, and billing entities.

Best for: Fits when services need controlled time-to-invoice billing across many active projects.

#3

Unanet AE ERP

vertical specialist

ERP software for AEC firms with project accounting, time entry, billing, and resource planning.

8.9/10
Overall
Features8.5/10
Ease of Use9.1/10
Value9.1/10
Standout feature

Project accounting ties approved time to invoice batches and WIP reconciliation without duplicating project logic.

Unanet AE ERP supports billable hours capture tied to projects and tasks, then pushes those entries through approval before invoice generation. Rate management supports role-based billing rates and cost rate versus bill rate spread calculations used for project profitability. The system maintains an audit trail for time entry edits and approvals, which helps with time entry audit trail requirements for governed billing workflows. It also supports integration with financial reporting because GL coding and project profitability analysis sit inside the same project accounting model.

The main tradeoff is administrative overhead because billable rates, approval hierarchy rules, and coding structures must be configured to match a firm’s cost structure and billing governance. Unanet AE ERP fits best when a services firm already runs a formal project accounting process and needs consistent WIP reconciliation and earned value tracking style reporting across active engagements. It is less efficient for lightweight T&M-only shops that want minimal configuration and no ERP-style project accounting controls.

Pros
  • +ERP-grade project accounting links time entry to WIP and profitability reports
  • +Role-based billing rates calculate bill versus cost spreads for each project
  • +Approval hierarchy gates time and billing output before invoice batch generation
  • +Invoice batches support repeatable billing cycles tied to project status
Cons
  • Configuration of rate cards, approvals, and coding adds setup effort
  • Complex hybrid billing workflows can require process alignment across teams
  • Reporting depth increases administrator reliance for day-to-day governance
  • API and automation surface require deliberate integration planning for custom tools
Use scenarios
  • Project controllers

    Run WIP reconciliation and margin analysis

    Month-end closes with fewer manual adjustments

  • Finance operations teams

    Standardize billing approvals across projects

    Fewer billing exceptions and rework

Show 2 more scenarios
  • Resource managers

    Align utilization with billable rate governance

    More predictable revenue realization

    Role-based billing rates connect project staffing decisions to billable cost outcomes.

  • Systems integrators

    Connect PSA and financial systems

    Reduced duplicate data entry

    Invoice and GL coding outputs support downstream financial integration and reconciliation workflows.

Best for: Fits when project accounting and governance matter more than minimal time-to-launch.

#4

Deltek Ajera

vertical specialist

Project accounting software for architecture and engineering firms with time, expense, and fee billing.

8.5/10
Overall
Features8.4/10
Ease of Use8.6/10
Value8.7/10
Standout feature

Invoice batch generation tied to project accounting lets teams produce consistent time and material invoices from approved time data.

Deltek Ajera is built for services firms that bill projects using time and expenses tied to structured project accounting. It supports billable hour capture and invoice generation driven by project and cost tracking so teams can produce consistent time and material invoices with fewer manual reconciliations.

The system adds governance via approval workflows and role controls for time entry and billing-related actions, which helps align utilization reporting and invoice readiness. Ajera also integrates into broader enterprise environments through established APIs and data exchange patterns used for financial coding and project profitability analysis.

Pros
  • +Strong project-to-invoice alignment using project accounting and billing rules
  • +Approval workflows help enforce time entry audit trail before billing actions
  • +Multi-currency rate handling supports consistent customer invoicing
  • +API and integrations support connecting project data to external systems
Cons
  • Configuration depth can slow initial rollout for complex billing rate structures
  • Time entry and billing setup depend on disciplined project coding hygiene
  • Advanced invoice setups require admin review to avoid batch output errors
  • Some enterprise reporting needs careful mapping between Ajera and finance systems

Best for: Fits when professional services firms need controlled time entry, project accounting, and invoice batching at scale.

#5

Scoro

SMB

Work management and PSA software with time tracking, quoting, budgeting, and billing.

8.3/10
Overall
Features8.1/10
Ease of Use8.5/10
Value8.4/10
Standout feature

Approval status drives invoice readiness, so invoice batch generation can follow a defined time approval workflow.

Scoro supports time and material billing by tying timesheets, project work, and invoices into one operating view. It provides quotation-to-invoice workflows with configurable fields for service billing, including rate cards and invoice line generation.

Scoro’s automation rules can push approval tasks and update financial status when time is submitted and approved. The system also connects work tracking to accounting exports via configurable integrations for GL coding needs.

Pros
  • +Quote-to-invoice workflows generate service invoices from project activity
  • +Configurable rate cards support role-based billing rates
  • +Automation routes time approvals and invoice readiness status based on rules
  • +Project profitability reporting links labor amounts to delivery outcomes
Cons
  • Invoice templates need careful configuration to match milestone vs T&M hybrid invoicing
  • Advanced controls require governance over time entry and approval hierarchy

Best for: Fits when service teams need approval-driven T&M invoicing with controllable rate logic and project profitability reporting.

#6

Productive

vertical specialist

Agency management software with time tracking, budgeting, resourcing, and invoicing.

8.0/10
Overall
Features7.7/10
Ease of Use8.1/10
Value8.2/10
Standout feature

Project-scoped workflow controls that restrict time edits and billing actions based on permissioned roles.

Productive is a time and material billing system built around project-based time capture, invoicing, and approval workflows. It supports billable and non-billable time entry controls that feed quote-to-invoice billing runs with role-based access to time and billing actions.

Configuration focuses on rate handling, project coding, and invoice output formats designed for service delivery teams that need consistent throughput from timesheets to invoices. Data governance centers on workflow permissions and auditability across time adjustments and billing status changes.

Pros
  • +Time entry feeds invoicing with clear project association and billing status tracking
  • +Approval and permissions separate timesheet edits from billing posting actions
  • +Invoice generation supports batch invoicing by project and billing cycle
  • +Rate configuration supports role-specific billing behavior for consistent labor pricing
Cons
  • API coverage for complex T&M pricing rules can be limiting for custom rate escalations
  • Automation relies on configuration depth, which requires careful governance discipline

Best for: Fits when service teams need controlled timesheet approvals and repeatable T&M invoicing across many projects.

#7

Harvest

SMB

Time tracking and invoicing software that converts billable hours and expenses into client invoices.

7.7/10
Overall
Features7.7/10
Ease of Use7.4/10
Value7.9/10
Standout feature

Time approval workflow that drives invoice-ready billable line items without manual rekeying.

Harvest centralizes time capture, projects, and invoicing in one workflow, with automatic linkage from logged time to billable line items. It supports client and project budgeting signals like rate cards, currency-aware billing, and invoice generation that pulls from approved time entries.

Harvest also handles expenses with receipts and coding that can be reflected on invoices, which reduces manual rework. Built-in reporting focuses on utilization and project profitability views that help reconcile what was captured versus what was billed.

Pros
  • +Time entries map directly into invoice line items with fewer spreadsheet steps
  • +Approval workflows reduce billable-hours mistakes before invoice batch generation
  • +Expense receipts can be coded and carried through to invoicing
  • +Utilization and profitability reporting supports project-level performance review
Cons
  • Milestone vs T&M hybrid invoicing needs careful project setup and segmentation
  • Advanced controls for subcontractor pass-through and DCAA-style labor cost allocation are limited
  • API and automation coverage is narrower for custom approval and rate escalation schedules
  • WIP reconciliation and earned value style tracking require external processes

Best for: Fits when service teams need fast time-to-invoice workflows with approval and project profitability reporting.

#8

TimeSolv

vertical specialist

Time, expense, and billing software built for professional services and legal invoicing.

7.4/10
Overall
Features7.4/10
Ease of Use7.6/10
Value7.2/10
Standout feature

Invoice batch generation that compiles approved time entries and expenses into consistent project invoice drafts.

TimeSolv is a time and material billing system built around project-based invoicing and time capture. The product ties timesheets to billable work so invoice batch generation can pull hours, rates, and expenses into standard invoice formats.

It supports rate controls for billable line items and can calculate project profitability by pairing labor costs with charge rates. Administrative workflows cover approval and audit trail expectations so teams can control who can adjust time and billing inputs.

Pros
  • +Time-to-invoice flow reduces manual rekeying for T&M billing lines
  • +Role-based billing rate controls support different rate cards by user or role
  • +Invoice batch generation pulls approved time and expenses into repeatable drafts
  • +Project profitability views connect labor costs to billed amounts
Cons
  • Automation depth for complex approval hierarchies is limited versus advanced PSA workflows
  • API and extensibility surface are constrained for custom data pipelines
  • Cost rate versus bill rate spread reporting is less granular than audit-focused PSA setups
  • Multi-currency rate card handling can require careful configuration by project and rate

Best for: Fits when service teams need a disciplined time-to-invoice workflow with controlled rates and repeatable invoice batches.

#9

Teamwork

SMB

Project management software for client work with time tracking, budgeting, and invoicing support.

7.1/10
Overall
Features7.2/10
Ease of Use6.8/10
Value7.2/10
Standout feature

Built-in timesheet and work approvals that gate billing inputs at the project level.

Teamwork supports time and material billing by capturing billable time on projects and converting those inputs into invoices tied to the project’s work breakdown. It also provides approvals for timesheets and work updates so billing reflects manager signoff rather than raw entries.

Teamwork adds rate and cost tracking across projects to support project profitability reporting and WIP reconciliation workflows. Admin controls cover user permissions, audit-style visibility into changes, and project-level configuration used to govern billing behavior.

Pros
  • +Project-linked time capture keeps T&M invoices aligned with work scope
  • +Timesheet and work item approval workflows reduce billing before signoff
  • +Project profitability reporting helps separate labor cost from billable amounts
  • +Role-based access controls limit who can edit billable fields and approve
Cons
  • Invoice batching and WIP reconciliation workflows can need extra process design
  • API coverage for billing-specific objects can be narrower than for core work tracking

Best for: Fits when mid-size service teams need controlled T&M invoicing tied to approvals and project profitability.

#10

actiTIME

SMB

Timesheet software with billing rates, cost tracking, and invoice-related reporting.

6.8/10
Overall
Features6.9/10
Ease of Use6.6/10
Value6.8/10
Standout feature

Approval-gated invoice generation that derives billing from rounded, approved time and expenses.

actiTIME is a time and material billing system that ties time capture to invoicing through project and customer records. It supports timesheet entry with approval workflows and configurable rounding policies, which helps control how billable hours are computed.

Invoicing can be generated in batches from approved time and can include billable expenses with GL coding for downstream accounting. The product prioritizes service operations built around projects, rate cards, and control gates on time entry rather than deep custom billing constructs.

Pros
  • +Timesheet approval workflow supports controlled billable hours capture
  • +Batch invoice generation pulls from approved time entries and expenses
  • +Rate cards support role-based billing rates for service teams
  • +Rounding policies reduce disputes in timesheet-to-invoice calculations
Cons
  • Automation and API surface are limited for high-volume integrations
  • Complex hybrid milestone versus T&M invoicing needs careful configuration
  • WIP reconciliation and earned value style reporting are not the primary focus
  • Advanced governance such as granular audit trails may require process discipline

Best for: Fits when project-based service teams need governed timesheets and batch T&M invoicing.

Conclusion

After evaluating 10 business finance, BQE CORE stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.

Our Top Pick
BQE CORE

Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.

How to Choose the Right time and material billing software

Time and material billing software coordinates billable hours capture, approval workflows, and invoice batch generation for service businesses that bill from time and expense.

This guide covers BQE CORE, BigTime, Unanet AE ERP, Deltek Ajera, Scoro, Productive, Harvest, TimeSolv, Teamwork, and actiTIME, with emphasis on how each tool turns approved work activity into invoice-ready billing output.

Time and material billing software for quote-to-invoice workflows and approval-gated invoicing

Time and material billing software is built to convert approved timesheets and expenses into invoice drafts that follow role-based billing rates, project coding, and bill versus cost spread logic where applicable. The core requirement is controlled time-to-invoice throughput so approvals gate billing actions before invoices get generated in batch.

BQE CORE focuses on invoice batch generation tied to approval status and rate-driven billing calculations for cost and bill rate spread. BigTime centers on a configurable time-to-invoice workflow that uses approved time entries, project rates, and accounting fields to produce invoice-ready output.

Invoice batch automation, approval governance, and rate-driven billing logic

Time and material billing software succeeds when approved time and expenses turn into invoice drafts through predictable batch rules that teams can audit. The feature set should map approval gates to billing readiness so projects do not generate invoices from unapproved work.

The most discriminating capabilities show up in how tools apply project rates and role rates to time entries, how they keep invoice generation consistent with project accounting, and how they support invoice batching tied to approval status and billing rules.

  • Approval-gated invoice readiness and audit trail

    BQE CORE ties time approval workflow to an invoice batch process so invoice-ready output follows approval status. BigTime and Productive also gate billing actions by linking approved time entries to invoice readiness and billing status tracking.

  • Rate-driven calculations for bill versus cost spread

    BQE CORE performs rate-driven billing calculations that support cost and bill rate spread. Unanet AE ERP and Scoro both apply role-based billing rates using project rate logic to calculate bill versus cost spreads for service profitability reporting.

  • Configurable time-to-invoice workflow across many active projects

    BigTime uses a configurable time-to-invoice workflow that generates invoice-ready output from approved time entries, project rates, and accounting fields. Deltek Ajera and Scoro produce time and material invoices from approved time data through invoice batch generation tied to project accounting and billing rules.

  • Project accounting linkage to WIP reconciliation

    Unanet AE ERP connects approved time to invoice batches and WIP reconciliation without duplicating project accounting logic. Deltek Ajera and BQE CORE similarly align invoice batching with project-level billing controls so billed work matches tracked project progress.

  • Hybrid milestone versus T&M invoicing support

    Scoro supports quote-to-invoice workflows that can generate service invoices from project activity, which matters when milestone versus T&M hybrid invoicing appears in the same project stream. Harvest and actiTIME require careful project setup and segmentation for milestone versus T&M hybrid scenarios.

  • Time and expense ingestion into consistent invoice drafts

    TimeSolv compiles approved time entries and expenses into consistent project invoice drafts through its invoice batch generation workflow. Harvest and actiTIME also derive invoice readiness from approved time and expenses to reduce manual rekeying before invoice batch generation.

  • Permission boundaries between time edits and billing posting

    Productive separates permissions for timesheet edits from billing posting actions, which restricts time edits and billing actions based on permissioned roles. Unanet AE ERP and BQE CORE rely on role and rate setup plus approval controls to enforce governed billing inputs.

Choose by workflow control depth and the billing outputs that must stay consistent

Start by mapping the required workflow gates to invoice batch generation, because the category goal is controlled time-to-invoice throughput. The tools differ most in whether invoice batching is an extension of an approval engine or an overlay on top of project accounting.

Then choose the rate model that matches internal governance, because role-based rate controls and bill versus cost spread calculations determine whether finance can reconcile profitability and WIP without rebuilding logic in spreadsheets.

  • Define the approval gate that must block invoice generation

    Pick a system that makes invoice readiness a direct function of the time approval workflow for your timesheets. BQE CORE drives invoice batch generation from approval status, while Harvest and actiTIME derive billable line items from approval status to reduce the chance of invoicing unapproved work.

  • Match invoice batch rules to how projects are administered

    If project accounting drives WIP reconciliation and profitability analysis, Unanet AE ERP links approved time to invoice batches and WIP reconciliation without duplicating project logic. If invoice batching must align tightly to project accounting billing rules at scale, Deltek Ajera and BQE CORE align batch invoices with approval-gated time data and project-level billing controls.

  • Select the rate approach that finance can govern without spreadsheet reconciliation

    Choose BQE CORE when the bill versus cost spread must be calculated from rate-driven billing logic for controlled profitability reporting. Choose Unanet AE ERP or Scoro when role-based billing rates must compute bill versus cost spreads by project while preserving consistent invoicing rules.

  • Decide whether the organization needs complex hybrid milestone and T&M segmentation

    Choose Scoro when quote-to-invoice workflows must support milestone versus T&M hybrid invoicing and the invoice templates need careful configuration. Choose Harvest or actiTIME only when milestone versus T&M hybrid invoicing can be handled with careful project setup and segmentation.

  • Evaluate how custom rate escalations and governance rules reach the API and automation layer

    Choose Productive when permission boundaries must separate timesheet edits from billing posting actions across many projects. Choose BQE CORE or BigTime when rate-driven calculations and approval-to-invoice workflow must be consistent with defined operating procedures since both require governance discipline for setup and approval controls.

  • Assess extensibility limits for custom data pipelines and high-volume integrations

    Choose tools with deeper automation surfaces when invoice outputs must feed custom billing data pipelines beyond standard invoice formats. TimeSolv and actiTIME can be constrained for custom data pipelines and advanced automation, while BQE CORE and Unanet AE ERP focus on invoice batching and project accounting alignment rather than broad custom pipeline coverage.

Who time and material billing software fits best

Service businesses that invoice from time and expense need systems that keep approval-gated inputs consistent with invoice batch outputs. The best match depends on whether invoice logic is primarily workflow-driven or project accounting-driven.

Organizations also differ in how they govern billing rates and who can edit time before billing posting actions, which determines the controls required in the time-to-invoice workflow.

  • Professional services firms that batch invoices from approved time at scale

    BQE CORE and Deltek Ajera both produce invoice batches from approval-gated time data and align billing rules with project accounting, which supports consistent time and material invoicing across many projects.

  • Finance teams that require bill versus cost spread and WIP reconciliation

    Unanet AE ERP ties approved time to invoice batches and WIP reconciliation while calculating bill versus cost spreads for each project. BQE CORE also supports rate-driven billing calculations that support cost and bill rate spread.

  • Operations teams that must enforce permission boundaries between timesheets and billing posting

    Productive uses project-scoped workflow controls that restrict time edits and billing actions based on permissioned roles. This structure helps teams prevent billing posting from using edited or unapproved time entries.

  • Service organizations with milestone versus T&M hybrid invoicing

    Scoro supports quote-to-invoice workflows and requires careful invoice template configuration for milestone versus T&M hybrid invoicing. Harvest and actiTIME need careful project setup and segmentation to handle hybrid scenarios.

  • Mid-size teams that need quick time-to-invoice without extensive admin overhead for special cases

    Harvest focuses on mapping time entries directly into invoice line items with fewer spreadsheet steps while driving invoice-ready billable line items from approval workflows. Teamwork also provides built-in timesheet and work approvals that gate billing inputs at the project level.

Common pitfalls during time and material billing software rollout

Most billing failures come from mismatched governance rather than missing invoice templates. Teams often configure time entry, approvals, and rate rules without defining the operating procedures that ensure approvals and coding remain consistent.

Another common failure is treating milestone versus T&M hybrid invoicing as a default configuration problem when it actually requires project-level segmentation and invoice template alignment.

  • Approving time but allowing unclear coding rules that later break invoice batching

    BQE CORE and Deltek Ajera both depend on defined project coding hygiene and operating procedures for rate-driven billing calculations to stay consistent. BigTime and Teamwork also require disciplined accounting field setup so approved time maps cleanly into invoice-ready output.

  • Expecting invoice templates to handle hybrid milestone versus T&M scenarios without configuration work

    Scoro can require careful invoice template configuration to match milestone versus T&M hybrid invoicing. Harvest and actiTIME also need careful project setup and segmentation so hybrid billing does not produce incorrect invoice readiness.

  • Underestimating the governance work needed for complex approval hierarchies

    BQE CORE and BigTime require defined operating procedures since approval and billing controls demand role and rate setup plus process alignment. Productive and Unanet AE ERP also demand governance discipline for permission boundaries and rate card configuration.

  • Assuming the system supports custom rate escalation logic through API and automation for bespoke pricing rules

    Productive can limit API coverage for complex T&M pricing rules and custom rate escalations. TimeSolv and actiTIME can also limit automation depth and API surface for high-volume or custom data pipelines.

How We Selected and Ranked These Tools

We evaluated BQE CORE, BigTime, Unanet AE ERP, Deltek Ajera, Scoro, Productive, Harvest, TimeSolv, Teamwork, and actiTIME by measuring invoice batch generation from approval-gated time and expenses, rate-driven billing calculations for bill versus cost spread, and the overall control depth available for time-to-invoice workflows. Features accounted for 40% of the ranking because invoice readiness logic, batch invoice automation, and project accounting linkage determine whether T&M billing can be produced consistently.

Ease of use and value each accounted for 30% because governance complexity and setup effort directly affect throughput when approvals and billing rules must run daily. BQE CORE separated itself by tying invoice batch generation to approval status while using rate-driven billing calculations that support both cost spread and bill rate spread without requiring duplicated project logic.

Frequently Asked Questions About time and material billing software

How does invoice batch generation work after time approval in BQE CORE, Scoro, and TimeSolv?
BQE CORE links invoice batch generation to approval status so only approved time and eligible billing inputs feed the batch output. Scoro uses approval status as an invoice readiness gate so batch-ready invoices follow the configured time-to-invoice workflow. TimeSolv compiles approved time entries and expenses into standard project invoice drafts during invoice batch generation.
Which tools support role-based billing rates and billable cost rate vs bill rate spread controls?
Unanet AE ERP applies role-based billing rates inside a project-centric structure so billing logic stays tied to governance and reporting. Deltek Ajera supports role controls for time entry and billing actions that align with utilization reporting and invoice readiness. BQE CORE uses a configuration model that supports multi-currency rate card behavior and role-specific billing rates for rate calculations.
How do timesheet approval workflows differ when gating billing inputs in BigTime, Teamwork, and Harvest?
BigTime uses configurable time-to-invoice workflows where approvals determine which time entries can drive invoice generation. Teamwork gates billing inputs with built-in timesheet and work approvals tied to project configuration so invoices reflect manager signoff. Harvest drives invoice-ready billable line items from its time approval workflow without manual rekeying.
What happens if approved time is edited after billing readiness in Productive, actiTIME, and Unanet AE ERP?
Productive restricts time edits and billing actions based on workflow permissions so changes follow the configured controls for governance. actiTIME applies configurable rounding policies and approval-gated invoice generation so rounding and billing inputs remain consistent with the approved data. Unanet AE ERP ties approval hierarchies and invoice batches to project accounting so edits require workflow-driven changes that keep WIP reconciliation coherent.
When teams need WIP reconciliation and project profitability analysis, which products provide both from the same time and billing data?
BigTime pairs utilization and project profitability signals with WIP reconciliation tied to time, costs, and invoice outputs. Unanet AE ERP connects approved time to invoice batches and WIP reconciliation inside a single project-centric accounting structure. Deltek Ajera supports project accounting workflows that connect billable hour capture to invoice generation for profitability and fewer manual reconciliations.
Which systems better support GL coding alignment for time and material invoices when generating accounting-ready output?
Unanet AE ERP maps approved work to allocation to cost centers and GL coding while generating invoice batches for project status tracking. Deltek Ajera supports invoice generation driven by project and cost tracking so accounting coding aligns with structured project accounting. Scoro supports work tracking to accounting exports via configurable integrations for GL coding needs.
How do expense report integration and invoice line creation work with Harvest, TimeSolv, and Scoro?
Harvest handles expenses with receipts and coding that can be reflected on invoices while linking logged time to billable line items. TimeSolv ties timesheets to billable work so invoice batch generation pulls hours, rates, and expenses into standard invoice formats. Scoro includes quotation-to-invoice workflows where invoice line generation uses configurable service billing fields alongside approved time inputs.
Where does extensibility show up in these products if service businesses need custom fields or workflow automation?
Deltek Ajera integrates into broader enterprise environments through established APIs and data exchange patterns used for financial coding and project profitability analysis. Scoro uses automation rules to push approval tasks and update financial status when time is submitted and approved. Productive focuses on extensibility through project-scoped workflow configuration that restricts edits and billing actions based on permissioned roles.
What tradeoff appears when a business needs deep custom billing constructs versus project-based control gates in Harvest, actiTIME, and BQE CORE?
Harvest emphasizes time approval-driven invoice-ready billable line items and project profitability views, which supports structured T&M billing without exposing deep custom billing constructs. actiTIME prioritizes governed timesheets and batch T&M invoicing tied to rounding policies, which can limit flexibility in unusual billing taxonomies. BQE CORE supports milestone versus T&M patterns and invoice batch generation tied to approval status, but organizations needing highly bespoke billing formats may find the standard invoice batch constructs more constraining.

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