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Top 10 Best Consultant Billing Software of 2026

Find the top 10 consultant billing software solutions to streamline invoicing & boost cash flow. Explore the best options here.

Rajesh Patel

Rajesh Patel

Feb 11, 2026

10 tools comparedExpert reviewed
Independent evaluation · Unbiased commentary · Updated regularly
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For consultants, efficient billing software is essential to maintaining profitability, streamlining workflows, and fostering client trust. With a diverse array of tools—from comprehensive platforms for large firms to simple apps for solo operators—choosing the right solution can transform financial management. This curated list highlights the industry’s leading options, each designed to meet the unique demands of consulting projects.

Quick Overview

  1. 1#1: BigTime - Comprehensive time tracking, expense management, and invoicing platform designed specifically for consulting and professional services firms.
  2. 2#2: Accelo - All-in-one professional services automation tool for consultants handling projects, time tracking, billing, and client management.
  3. 3#3: Kantata - Resource planning and project management software with advanced billing and profitability tracking for consulting teams.
  4. 4#4: Harvest - Simple time tracking and invoicing app that helps consultants log hours, track expenses, and generate professional invoices.
  5. 5#5: FreshBooks - Cloud accounting software optimized for freelancers and consultants with automated invoicing, time tracking, and expense management.
  6. 6#6: QuickBooks Online - Robust accounting solution featuring customizable invoicing, time tracking, and financial reporting for consulting businesses.
  7. 7#7: Toggl Track - Intuitive time tracking tool with built-in invoicing and reporting to streamline billing for independent consultants.
  8. 8#8: Bill4Time - Legal and consulting billing software that tracks time, manages expenses, and automates invoicing workflows.
  9. 9#9: TimeSolv - Cloud-based billing and practice management for consultants and professionals with trust accounting and reporting.
  10. 10#10: Zoho Invoice - Free online invoicing tool with time tracking and multi-currency support ideal for small consulting operations.

Tools were evaluated based on functionality (including time tracking, expense management, and invoicing), user experience, reliability, and overall value, with an emphasis on adaptability to consulting workflows of all sizes.

Comparison Table

Navigating consultant billing software can be complex, but this comparison table simplifies the process by breaking down top tools like BigTime, Accelo, Kantata, Harvest, FreshBooks, and more. Readers will explore key features, pricing models, and ideal uses, empowering them to identify the best fit for their practice’s unique needs.

1BigTime logo9.5/10

Comprehensive time tracking, expense management, and invoicing platform designed specifically for consulting and professional services firms.

Features
9.7/10
Ease
9.1/10
Value
9.3/10
2Accelo logo8.7/10

All-in-one professional services automation tool for consultants handling projects, time tracking, billing, and client management.

Features
9.2/10
Ease
7.8/10
Value
8.3/10
3Kantata logo8.6/10

Resource planning and project management software with advanced billing and profitability tracking for consulting teams.

Features
9.2/10
Ease
7.8/10
Value
8.1/10
4Harvest logo8.4/10

Simple time tracking and invoicing app that helps consultants log hours, track expenses, and generate professional invoices.

Features
8.0/10
Ease
9.2/10
Value
8.1/10
5FreshBooks logo8.7/10

Cloud accounting software optimized for freelancers and consultants with automated invoicing, time tracking, and expense management.

Features
8.5/10
Ease
9.4/10
Value
8.2/10

Robust accounting solution featuring customizable invoicing, time tracking, and financial reporting for consulting businesses.

Features
8.5/10
Ease
8.0/10
Value
7.5/10

Intuitive time tracking tool with built-in invoicing and reporting to streamline billing for independent consultants.

Features
7.5/10
Ease
9.5/10
Value
8.5/10
8Bill4Time logo7.6/10

Legal and consulting billing software that tracks time, manages expenses, and automates invoicing workflows.

Features
7.8/10
Ease
7.4/10
Value
8.1/10
9TimeSolv logo7.8/10

Cloud-based billing and practice management for consultants and professionals with trust accounting and reporting.

Features
8.3/10
Ease
7.2/10
Value
7.6/10
10Zoho Invoice logo8.4/10

Free online invoicing tool with time tracking and multi-currency support ideal for small consulting operations.

Features
8.5/10
Ease
9.2/10
Value
9.5/10
1
BigTime logo

BigTime

enterprise

Comprehensive time tracking, expense management, and invoicing platform designed specifically for consulting and professional services firms.

Overall Rating9.5/10
Features
9.7/10
Ease of Use
9.1/10
Value
9.3/10
Standout Feature

Capacity Planning Dashboard with AI-driven forecasting for optimal resource allocation and billable utilization prediction

BigTime is a robust professional services automation (PSA) platform designed specifically for consultant billing, offering seamless time and expense tracking, project management, and automated invoicing. It enables firms to capture every billable hour accurately through mobile apps and web interfaces, while providing real-time profitability insights and resource utilization forecasting. With deep integrations to accounting tools like QuickBooks and NetSuite, it streamlines the entire billing lifecycle from time entry to payment collection.

Pros

  • Comprehensive time/expense tracking with mobile-first design for on-the-go logging
  • Advanced reporting and dashboards for profitability analysis and forecasting
  • Seamless integrations with major accounting software for automated billing

Cons

  • Initial setup and customization require some training
  • Pricing scales quickly for larger teams with advanced features
  • Mobile app lacks some desktop-level reporting capabilities

Best For

Mid-to-large consulting firms and professional services teams focused on maximizing billable utilization and streamlining invoicing.

Pricing

Quote-based pricing starting at ~$10/user/month for Essentials plan, up to $40+/user/month for Elite with advanced features; annual contracts recommended.

Visit BigTimebigtime.net
2
Accelo logo

Accelo

enterprise

All-in-one professional services automation tool for consultants handling projects, time tracking, billing, and client management.

Overall Rating8.7/10
Features
9.2/10
Ease of Use
7.8/10
Value
8.3/10
Standout Feature

Smart Practice Automation that unifies sales pipelines, project delivery, and billing into automated, interconnected workflows

Accelo is a comprehensive professional services automation (PSA) platform tailored for consultancies, agencies, and service-based businesses. It integrates CRM, project management, time tracking, scheduling, invoicing, and billing into a single system to streamline the entire client lifecycle. With automated workflows and real-time profitability insights, it excels in consultant billing by enabling accurate time-based invoicing, retainers, and expense tracking.

Pros

  • All-in-one PSA suite covering sales, projects, time tracking, and billing seamlessly
  • Advanced automation for workflows, retainers, and recurring billing
  • Robust reporting with real-time profitability and resource utilization insights

Cons

  • Steep learning curve due to extensive features and customization options
  • Pricing can be high for very small teams or solo consultants
  • Mobile app lacks some desktop functionalities

Best For

Mid-sized consulting firms and agencies needing an integrated platform for end-to-end project delivery and billing management.

Pricing

Starts at $39/user/month (Basic, billed annually), with Plus ($69/user/month), Advanced ($99/user/month), and custom Enterprise plans.

Visit Acceloaccelo.com
3
Kantata logo

Kantata

enterprise

Resource planning and project management software with advanced billing and profitability tracking for consulting teams.

Overall Rating8.6/10
Features
9.2/10
Ease of Use
7.8/10
Value
8.1/10
Standout Feature

AI-driven Intelligent Insights for predictive resource allocation and profitability forecasting

Kantata is a comprehensive professional services automation (PSA) platform tailored for consulting firms, offering end-to-end management of projects, resources, time tracking, expenses, and billing. It automates consultant billing processes with features like milestone-based invoicing, rate cards, and revenue recognition. The software provides real-time financial insights and forecasting to optimize profitability and cash flow.

Pros

  • Advanced resource capacity planning and forecasting
  • Seamless time/expense tracking integrated with invoicing
  • Strong integrations with ERP/accounting systems like NetSuite and QuickBooks

Cons

  • Steep learning curve for non-enterprise users
  • Pricing can be prohibitive for small firms
  • Occasional performance lags with large datasets

Best For

Mid-to-large consulting firms requiring integrated PSA for billing, resource management, and project profitability.

Pricing

Custom quote-based pricing; starts around $39/user/month for Team plan, up to $59+/user/month for enterprise features (billed annually).

Visit Kantatakantata.com
4
Harvest logo

Harvest

specialized

Simple time tracking and invoicing app that helps consultants log hours, track expenses, and generate professional invoices.

Overall Rating8.4/10
Features
8.0/10
Ease of Use
9.2/10
Value
8.1/10
Standout Feature

Smart time tracking reminders and scheduling that ensure comprehensive and accurate billable hour capture

Harvest is a user-friendly time tracking and invoicing platform tailored for freelancers, agencies, and consultants. It enables precise time logging against projects and clients via desktop timers, mobile apps, and reminders, with automatic conversion of tracked time into customizable invoices. The tool also supports expense tracking, basic reporting, and seamless integrations with accounting software like QuickBooks and payment processors like Stripe.

Pros

  • Intuitive time tracking with cross-device timers, scheduling, and nudges for accurate logging
  • Seamless invoicing directly from time entries, supporting multiple formats and payments
  • Robust integrations with 100+ apps including QuickBooks, Stripe, and Asana

Cons

  • Per-user pricing can become expensive for larger consulting teams
  • Lacks advanced project management, CRM, or retainer billing features
  • Reporting is solid but basic, often requiring exports for deeper analysis

Best For

Freelance consultants and small-to-medium agencies prioritizing simple hourly time tracking and invoicing without complex project management needs.

Pricing

Free for 1 user (2 projects); Pro at $12/user/month (billed annually); Enterprise custom.

Visit Harvestharvestapp.com
5
FreshBooks logo

FreshBooks

specialized

Cloud accounting software optimized for freelancers and consultants with automated invoicing, time tracking, and expense management.

Overall Rating8.7/10
Features
8.5/10
Ease of Use
9.4/10
Value
8.2/10
Standout Feature

Project-based time tracking that automatically generates billable invoices from logged hours

FreshBooks is a cloud-based invoicing and accounting software tailored for freelancers, consultants, and small service-based businesses. It streamlines billing through customizable invoices, time tracking, expense management, and project-based profitability tracking. For consultants, it excels at converting billable hours into invoices, accepting online payments, and sending automated reminders, making client billing efficient and professional.

Pros

  • Highly intuitive interface with drag-and-drop invoicing
  • Seamless time tracking and expense logging tied to projects
  • Integrated payment processing with QuickBooks and Stripe support

Cons

  • Limited advanced reporting and analytics compared to enterprise tools
  • Pricing scales steeply based on client volume, not users
  • Lacks double-entry accounting and inventory management

Best For

Solo consultants or small firms focused on service billing who prioritize ease of use over full-scale accounting.

Pricing

Lite plan at $19/mo (5 clients), Plus at $33/mo (50 clients), Premium at $60/mo (unlimited clients); Select plan is custom enterprise pricing.

Visit FreshBooksfreshbooks.com
6
QuickBooks Online logo

QuickBooks Online

enterprise

Robust accounting solution featuring customizable invoicing, time tracking, and financial reporting for consulting businesses.

Overall Rating8.2/10
Features
8.5/10
Ease of Use
8.0/10
Value
7.5/10
Standout Feature

Project Profitability Tracking, which lets consultants monitor income, expenses, and margins per client or project in real-time.

QuickBooks Online is a cloud-based accounting platform that excels in invoicing, expense tracking, and financial reporting, making it suitable for consultants handling billing tasks. It offers time tracking, customizable invoices, recurring billing, and project profitability analysis in higher tiers, helping consultants manage billable hours and client payments efficiently. While not exclusively designed for consultants, its robust integrations and automation streamline billing workflows alongside full accounting needs.

Pros

  • Powerful invoicing with automation, recurring templates, and online payments
  • Time tracking and project profitability tools for accurate billable hours
  • Extensive integrations with 750+ apps for enhanced consultant workflows

Cons

  • Full consultant features like time tracking require Plus plan ($90+/mo) or higher
  • Interface can feel overwhelming for users focused only on simple billing
  • Advanced reporting and customizations may need add-ons, increasing costs

Best For

Small to mid-sized consulting firms needing integrated accounting, project billing, and financial reporting in one platform.

Pricing

Starts at $30/month (Simple Start) for basic invoicing; Essentials ($60/mo) adds billable time; Plus ($90/mo) includes projects/time tracking; Advanced ($200/mo) for enterprise needs.

Visit QuickBooks Onlinequickbooks.intuit.com
7
Toggl Track logo

Toggl Track

specialized

Intuitive time tracking tool with built-in invoicing and reporting to streamline billing for independent consultants.

Overall Rating8.0/10
Features
7.5/10
Ease of Use
9.5/10
Value
8.5/10
Standout Feature

Idle detection and Pomodoro timer for effortless, precise capture of billable time.

Toggl Track is a user-friendly time tracking application that enables consultants to log billable hours with precision using timers, manual entries, and integrations with calendars and project tools. It generates detailed reports on time spent per client, project, or task, which can be exported for invoicing purposes. While it supports billing workflows through integrations with tools like QuickBooks and FreshBooks, it lacks native invoicing and payment processing features.

Pros

  • Intuitive one-click timer with idle detection for accurate tracking
  • Robust reporting and export options tailored for billable hours
  • Seamless integrations with popular invoicing and project management tools

Cons

  • No built-in invoicing or payment processing capabilities
  • Advanced reporting requires premium plans
  • Limited native project management for complex billing scenarios

Best For

Freelance consultants and small teams focused on precise time tracking to support hourly billing without needing full accounting software.

Pricing

Free plan for basic tracking; Starter at $9/user/month, Premium at $18/user/month (billed annually).

8
Bill4Time logo

Bill4Time

specialized

Legal and consulting billing software that tracks time, manages expenses, and automates invoicing workflows.

Overall Rating7.6/10
Features
7.8/10
Ease of Use
7.4/10
Value
8.1/10
Standout Feature

One-click invoicing that pulls directly from time sheets and expenses for rapid billing cycles

Bill4Time is a versatile time tracking and billing platform tailored for consultants, lawyers, and small professional services firms. It enables precise time logging via mobile apps and desktop timers, automated invoice generation from tracked time, expense management, and customizable reporting. The software integrates seamlessly with QuickBooks and supports client portals for approvals and payments.

Pros

  • Robust mobile and desktop time tracking with GPS and offline support
  • Quick invoicing directly from time entries and QuickBooks integration
  • Comprehensive reporting and client portal for bill approvals

Cons

  • Dated user interface that lacks modern polish
  • Limited advanced automation and AI-driven insights
  • Occasional reports of slow customer support response times

Best For

Small to mid-sized consulting firms seeking affordable, straightforward time billing without needing enterprise-level complexity.

Pricing

Starts at $19/month (Solo), $39/user/month (Pro), $59/user/month (Enterprise), billed annually with a free trial.

Visit Bill4Timebill4time.com
9
TimeSolv logo

TimeSolv

specialized

Cloud-based billing and practice management for consultants and professionals with trust accounting and reporting.

Overall Rating7.8/10
Features
8.3/10
Ease of Use
7.2/10
Value
7.6/10
Standout Feature

Matter-based billing that allows precise tracking and billing per project or client engagement

TimeSolv is a cloud-based time tracking and billing software tailored for consultants, lawyers, and accountants, offering tools for capturing billable hours, managing expenses, and generating invoices. It includes client portals for approvals, online payments via multiple gateways, and detailed reporting for profitability analysis. The platform supports recurring billing and matter-based tracking, making it suitable for service-oriented billing workflows.

Pros

  • Robust time tracking with timers and mobile app
  • Customizable invoicing and online payment integration
  • Comprehensive reporting and client portal access

Cons

  • Outdated user interface requiring adaptation
  • Steeper learning curve for advanced features
  • Limited free trial and higher costs for multiple users

Best For

Small to mid-sized consulting firms needing detailed project-based time tracking and professional invoicing.

Pricing

Starts at $24.95 per user per month (billed annually) for the Consultant plan, with tiers up to $49.95 for advanced features.

Visit TimeSolvtimesolv.com
10
Zoho Invoice logo

Zoho Invoice

other

Free online invoicing tool with time tracking and multi-currency support ideal for small consulting operations.

Overall Rating8.4/10
Features
8.5/10
Ease of Use
9.2/10
Value
9.5/10
Standout Feature

Forever-free plan with unlimited invoices and basic time tracking for small-scale users

Zoho Invoice is a cloud-based invoicing tool tailored for freelancers, small businesses, and consultants, enabling easy creation, customization, and sending of professional invoices. It includes time tracking, project management, expense logging, and payment reminders to streamline billing workflows. As part of the Zoho ecosystem, it offers seamless integrations with CRM, Books, and other apps for efficient consultant billing.

Pros

  • Generous free plan with core invoicing and time tracking
  • Intuitive interface with mobile app support
  • Strong integrations with Zoho suite and 40+ third-party apps

Cons

  • Free plan limited to 3 customers
  • Advanced reporting and automation require paid upgrades
  • Limited customization for complex retainer billing

Best For

Freelance consultants and solo practitioners seeking affordable, straightforward billing without needing enterprise-level features.

Pricing

Free plan (up to 3 customers); paid plans start at $9/user/month (Standard) billed annually for unlimited customers and advanced features.

Visit Zoho Invoicezoho.com/invoice

Conclusion

The top consultant billing software options, led by BigTime, Accelo, and Kantata, cater to varying needs. BigTime stands out as the top choice, offering comprehensive tools designed specifically for consulting firms. Accelo and Kantata, strong alternatives, excel in project management and resource planning, ensuring there’s a fit for different practice types.

BigTime logo
Our Top Pick
BigTime

Don’t miss out on BigTime—its robust features make it a transformative tool for consultants aiming to simplify billing, track time, and manage operations effectively.