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Top 10 Best Prior Year Tax Software of 2026

Find the best prior year tax software to file old returns. Compare features & get started – easy, reliable options here.

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How We Ranked These Tools

01
Feature Verification

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

02
Multimedia Review Aggregation

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

03
Synthetic User Modeling

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

04
Human Editorial Review

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

Independent Product Evaluation: rankings reflect verified quality and editorial standards. Read our full methodology →

How Our Scores Work

Scores are calculated across three dimensions: Features (depth and breadth of capabilities verified against official documentation across 12 evaluation criteria), Ease of Use (aggregated sentiment from written and video user reviews, weighted by recency), and Value (pricing relative to feature set and market alternatives). Each dimension is scored 1–10. The Overall score is a weighted composite: Features 40%, Ease of Use 30%, Value 30%.

Quick Overview

  1. 1#1: TurboTax Desktop - Provides downloadable desktop versions for preparing, amending, and e-filing prior year personal tax returns with extensive forms support.
  2. 2#2: H&R Block Software - Offers desktop and download editions specifically designed for prior year tax preparation and amendments with user-friendly guidance.
  3. 3#3: TaxAct Desktop - Delivers affordable desktop software for handling prior year returns, including state taxes and electronic filing options.
  4. 4#4: ProSeries Tax - Professional-grade desktop software supporting prior year professional tax returns with advanced diagnostics and e-filing.
  5. 5#5: Lacerte Tax - Enterprise-level tax preparation software with robust prior year support, automation, and integration for CPAs.
  6. 6#6: Drake Tax - Comprehensive professional tax software offering prior year modules, unlimited e-filing, and strong customer support.
  7. 7#7: UltraTax CS - Cloud-enabled professional software for prior year tax prep with firm-wide workflow and compliance tools.
  8. 8#8: CCH Axcess Tax - Integrated cloud platform for enterprise tax firms handling prior year returns with AI-driven insights and security.
  9. 9#9: TaxSlayer Pro - Professional web-based and desktop tools for prior year tax preparation with competitive pricing and support.
  10. 10#10: GoSystem Tax RS - Scalable cloud solution for large firms managing prior year tax returns with collaboration and archival features.

Tools were ranked based on robustness of prior year support, ease of use across skill levels, comprehensive feature sets (including state filing, e-filing, and integration capabilities), and overall value, ensuring a balance of performance and practicality.

Comparison Table

This comparison table explores key details of popular prior year tax software, including TurboTax Desktop, H&R Block Software, TaxAct Desktop, ProSeries Tax, Lacerte Tax, and more, helping readers understand features, usability, and functionality to find the best fit for their tax filing needs.

Provides downloadable desktop versions for preparing, amending, and e-filing prior year personal tax returns with extensive forms support.

Features
9.8/10
Ease
9.5/10
Value
9.2/10

Offers desktop and download editions specifically designed for prior year tax preparation and amendments with user-friendly guidance.

Features
9.4/10
Ease
8.9/10
Value
8.7/10

Delivers affordable desktop software for handling prior year returns, including state taxes and electronic filing options.

Features
8.7/10
Ease
8.1/10
Value
9.3/10

Professional-grade desktop software supporting prior year professional tax returns with advanced diagnostics and e-filing.

Features
8.5/10
Ease
7.8/10
Value
7.6/10

Enterprise-level tax preparation software with robust prior year support, automation, and integration for CPAs.

Features
8.8/10
Ease
7.5/10
Value
7.8/10
6Drake Tax logo8.7/10

Comprehensive professional tax software offering prior year modules, unlimited e-filing, and strong customer support.

Features
9.1/10
Ease
8.4/10
Value
9.3/10

Cloud-enabled professional software for prior year tax prep with firm-wide workflow and compliance tools.

Features
9.1/10
Ease
7.4/10
Value
7.8/10

Integrated cloud platform for enterprise tax firms handling prior year returns with AI-driven insights and security.

Features
9.1/10
Ease
7.4/10
Value
7.6/10

Professional web-based and desktop tools for prior year tax preparation with competitive pricing and support.

Features
7.8/10
Ease
8.5/10
Value
9.0/10

Scalable cloud solution for large firms managing prior year tax returns with collaboration and archival features.

Features
8.5/10
Ease
6.9/10
Value
7.2/10
1
TurboTax Desktop logo

TurboTax Desktop

specialized

Provides downloadable desktop versions for preparing, amending, and e-filing prior year personal tax returns with extensive forms support.

Overall Rating9.6/10
Features
9.8/10
Ease of Use
9.5/10
Value
9.2/10
Standout Feature

Seamless prior-year data import and full e-filing support for amended returns across multiple past tax years

TurboTax Desktop is a premier prior year tax software solution from Intuit, enabling users to prepare, e-file, or print amended and late returns for previous tax years like 2023, 2022, and earlier. It offers comprehensive coverage of federal and state forms, step-by-step guidance, and seamless import of prior data from previous TurboTax installations. Ideal for complex returns, it provides audit support and accuracy guarantees, making it a top choice for reliable prior year filings.

Pros

  • Extensive support for all IRS forms, schedules, and state returns from prior years
  • Easy import of prior TurboTax data and W-2/1099 forms for accuracy
  • Live expert assistance and audit defense available

Cons

  • Higher upfront cost compared to free or basic online alternatives
  • Requires downloading and installing software on Windows/Mac
  • No perpetual updates; must purchase specific year editions

Best For

Users handling complex prior year returns, amendments, or late filings who need robust form support and professional guidance.

Pricing

Prior year desktop editions range from $59 for Deluxe to $119 for Home & Business, with state add-ons ~$49 each; one-time purchase per year/version.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit TurboTax Desktopturbotax.intuit.com
2
H&R Block Software logo

H&R Block Software

specialized

Offers desktop and download editions specifically designed for prior year tax preparation and amendments with user-friendly guidance.

Overall Rating9.1/10
Features
9.4/10
Ease of Use
8.9/10
Value
8.7/10
Standout Feature

Tax Pro Review, allowing upload of your prior year return for expert analysis and amendments by H&R Block professionals

H&R Block Software provides a comprehensive prior year tax preparation solution for filing amended, late, or original returns from previous tax years via desktop downloads or online platforms. It supports a wide range of federal and state forms, including complex scenarios like itemized deductions, self-employment income, and credits such as the Earned Income Tax Credit. The software features step-by-step guidance, data import from prior years or TurboTax, and accuracy guarantees backed by professional support.

Pros

  • Extensive support for prior year federal and state forms, including niche schedules
  • Data import from TurboTax, PDF, or prior H&R Block returns for efficiency
  • Access to live tax pros via Tax Pro Review for complex prior year issues

Cons

  • Higher cost for premium editions with full support features
  • Desktop version requires download and installation, less flexible than pure online tools
  • Limited free tier; most prior year functionality behind paywall

Best For

Users filing complex or amended prior year returns who value professional guidance and robust form coverage.

Pricing

Desktop prior year editions range from $34.99 (Basic) to $84.99 (Premium & Business); online prior year filing starts at $35 with state add-ons extra.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
3
TaxAct Desktop logo

TaxAct Desktop

specialized

Delivers affordable desktop software for handling prior year returns, including state taxes and electronic filing options.

Overall Rating8.4/10
Features
8.7/10
Ease of Use
8.1/10
Value
9.3/10
Standout Feature

Dedicated downloadable editions for specific prior tax years, ensuring up-to-date forms without needing current-year software

TaxAct Desktop is a downloadable Windows-based tax preparation software from taxact.com, specifically designed for handling prior-year federal and state tax returns, including amendments via Form 1040X. It provides access to forms and schedules for multiple past tax years through dedicated prior-year editions, supporting e-filing where available and printing for mailing. The software uses a step-by-step Q&A interview to guide users through data entry, with options to import prior-year PDFs or data files for accuracy and efficiency.

Pros

  • Highly affordable pricing for prior-year editions
  • Comprehensive support for historical forms and schedules across multiple years
  • Offline desktop functionality with reliable import tools for prior data

Cons

  • Dated user interface compared to web-based competitors
  • Limited customer support options, primarily email and FAQs
  • Windows-only compatibility, no Mac version

Best For

Budget-conscious individuals or small business owners needing reliable, offline software for filing or amending prior-year taxes without ongoing subscriptions.

Pricing

Prior-year federal editions start at $39.99, with state add-ons at $39.99 each; bundles available for $59.99-$79.99 depending on the tax year.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
4
ProSeries Tax logo

ProSeries Tax

enterprise

Professional-grade desktop software supporting prior year professional tax returns with advanced diagnostics and e-filing.

Overall Rating8.2/10
Features
8.5/10
Ease of Use
7.8/10
Value
7.6/10
Standout Feature

Prior year e-filing support for returns back to 2019 using current software versions without legacy installs

ProSeries Tax by Intuit is a desktop-based professional tax preparation software tailored for CPAs and tax pros handling complex federal, state, and local returns. It supports prior year return preparation and amendments, including e-filing for returns back to 2019 with updated forms and calculations. The software emphasizes accuracy through built-in diagnostics, data import from prior years, and integration with Intuit tools like Lacerte.

Pros

  • Robust support for prior year e-filing and amendments with automatic form updates
  • Strong error-checking and diagnostics for complex prior year scenarios
  • Seamless data import and carryover from previous ProSeries installations

Cons

  • Desktop-only installation limits remote access and mobility
  • High subscription costs for full feature access and state modules
  • Steeper learning curve compared to cloud-based alternatives

Best For

Established tax professionals managing moderate to high volumes of prior year amendments and complex returns.

Pricing

Annual subscriptions start at ~$449 for Basic edition; Professional editions range from $1,449 to $3,500+ with add-ons for states and payroll.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit ProSeries Taxproseries.intuit.com
5
Lacerte Tax logo

Lacerte Tax

enterprise

Enterprise-level tax preparation software with robust prior year support, automation, and integration for CPAs.

Overall Rating8.2/10
Features
8.8/10
Ease of Use
7.5/10
Value
7.8/10
Standout Feature

Prior Year E-file Module with automated form replication and IRS-approved transmission for multiple historical tax years

Lacerte Tax by Intuit is a professional-grade desktop tax preparation software designed for CPAs and tax firms, offering robust support for preparing and e-filing prior year tax returns across multiple years. It provides access to historical forms, schedules, and IRS-approved e-filing for amended or original prior year returns, with built-in diagnostics to ensure compliance. The software integrates seamlessly with Intuit's ecosystem for data import from prior years, making it efficient for complex professional workflows.

Pros

  • Comprehensive library of prior year forms and schedules with IRS e-file support for up to 10+ years back
  • Powerful diagnostics and error-checking tailored for historical returns
  • Seamless integration with QuickBooks and prior client data import

Cons

  • High cost may not suit small practices or solo preparers
  • Steep learning curve for users new to professional tax software
  • Desktop-only installation requires local updates and maintenance

Best For

Established tax professionals and firms handling high volumes of complex prior year returns for clients.

Pricing

Annual subscription starts at around $1,649 for 100 e-filed returns, scaling up with volume tiers.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit Lacerte Taxlacerte.intuit.com
6
Drake Tax logo

Drake Tax

enterprise

Comprehensive professional tax software offering prior year modules, unlimited e-filing, and strong customer support.

Overall Rating8.7/10
Features
9.1/10
Ease of Use
8.4/10
Value
9.3/10
Standout Feature

E-filing capability for federal returns back to 2009 and state returns to 2012, with full form accuracy guarantees

Drake Tax from drakesoftware.com is a professional-grade tax preparation software renowned for its robust support of prior year returns, enabling e-filing, amendments, and extensions for federal and state forms dating back to 2009. It offers seamless data import from prior Drake returns or competitors like TurboTax, making it efficient for handling back taxes. Ideal for tax pros, it combines comprehensive form libraries with strong customer support to streamline prior year processing.

Pros

  • Extensive prior year e-filing support back to 2009 federally and most states
  • Affordable pricing with unlimited companies and e-files in higher tiers
  • Outstanding 24/7 customer support via phone, chat, and email

Cons

  • Desktop-only interface feels somewhat dated compared to cloud rivals
  • Steeper learning curve for users new to professional tax software
  • Limited integrations with non-tax accounting tools

Best For

Tax professionals or firms managing high volumes of prior year amendments, extensions, and back tax filings for clients.

Pricing

Annual subscriptions start at $1,625 for 100 returns (unlimited prior years), scaling to $3,345+ for unlimited; volume discounts available.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit Drake Taxdrakesoftware.com
7
UltraTax CS logo

UltraTax CS

enterprise

Cloud-enabled professional software for prior year tax prep with firm-wide workflow and compliance tools.

Overall Rating8.2/10
Features
9.1/10
Ease of Use
7.4/10
Value
7.8/10
Standout Feature

Automated prior-year data migration and amendment e-filing with retroactive law change updates

UltraTax CS from Thomson Reuters is a robust professional tax preparation platform designed for handling prior year returns, amendments, and complex tax scenarios across federal, state, and local jurisdictions. It enables seamless data import from prior years, electronic filing of amendments for multiple prior tax years, and automated calculations adjusted for historical tax law changes. Ideal for tax pros needing reliable prior-year processing, it integrates with organizers, diagnostics, and practice management tools for efficient workflows.

Pros

  • Comprehensive support for prior-year amendments and e-filing up to several years back
  • Accurate diagnostics and error-checking tailored to historical tax rules
  • Strong integration with Thomson Reuters ecosystem for data carryover

Cons

  • Steep learning curve for new users due to dense interface
  • High subscription costs limit accessibility for smaller firms
  • Resource-intensive, requiring powerful hardware for optimal performance

Best For

Established tax professionals or firms managing high volumes of complex prior-year returns and amendments.

Pricing

Annual subscription-based pricing starts at around $3,500 per preparer, scaling with modules, states, and firm size; custom quotes required.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit UltraTax CStax.thomsonreuters.com
8
CCH Axcess Tax logo

CCH Axcess Tax

enterprise

Integrated cloud platform for enterprise tax firms handling prior year returns with AI-driven insights and security.

Overall Rating8.2/10
Features
9.1/10
Ease of Use
7.4/10
Value
7.6/10
Standout Feature

Integrated prior year data carryover and one-click amendment generation with historical rate libraries

CCH Axcess Tax from Wolters Kluwer is a cloud-based professional tax preparation platform tailored for accounting firms handling complex federal and state returns. It excels in prior year tax software capabilities, enabling seamless amendment processing, data import from prior returns, and access to historical forms and rates. The software integrates diagnostics, workflow management, and e-filing to ensure accuracy and compliance for amended or reconstructed returns.

Pros

  • Extensive library of prior year forms and automated amendment tools
  • Cloud-based access with strong integration to practice management systems
  • Advanced diagnostics and error-checking for compliance

Cons

  • Steep learning curve for new users
  • High subscription costs for smaller firms
  • Occasional performance lags during peak tax season

Best For

Mid-to-large accounting firms managing high volumes of complex prior year amendments and reconstructions.

Pricing

Custom enterprise pricing starting at $5,000+ annually per user, based on firm size, return volume, and modules selected.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit CCH Axcess Taxwolterskluwer.com
9
TaxSlayer Pro logo

TaxSlayer Pro

enterprise

Professional web-based and desktop tools for prior year tax preparation with competitive pricing and support.

Overall Rating8.2/10
Features
7.8/10
Ease of Use
8.5/10
Value
9.0/10
Standout Feature

Seamless e-filing for prior year returns (up to 3 years) with multi-state support and built-in diagnostics

TaxSlayer Pro is professional tax preparation software tailored for tax pros, enabling the preparation and e-filing of current and prior year federal and state returns through a cloud-based platform. It includes tools for client management, diagnostics, error checking, and support for complex forms going back up to three prior years. This makes it a reliable option for handling amendments and late filings without needing desktop installations.

Pros

  • Affordable tiered pricing ideal for small firms
  • Cloud-based access for remote work and collaboration
  • Reliable e-filing support for prior year returns up to 3 years back

Cons

  • Fewer advanced features compared to top competitors like Drake or CCH
  • Interface feels somewhat dated in places
  • Limited third-party integrations

Best For

Small to mid-sized tax preparation firms needing cost-effective prior year filing and e-filing capabilities.

Pricing

Tiered plans start at ~$1,200/year for 100 federal returns, with add-ons for states (~$5-7/return) and higher volumes.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit TaxSlayer Protaxslayerpro.com
10
GoSystem Tax RS logo

GoSystem Tax RS

enterprise

Scalable cloud solution for large firms managing prior year tax returns with collaboration and archival features.

Overall Rating7.8/10
Features
8.5/10
Ease of Use
6.9/10
Value
7.2/10
Standout Feature

Relational database architecture that links and preserves data integrity across multiple tax years

GoSystem Tax RS from Thomson Reuters is an enterprise-level, web-based tax preparation software tailored for professional firms handling complex returns. It provides comprehensive support for prior year tax processing, including amendments, diagnostics, and e-filing for federal, state, and local returns. The platform leverages a relational database architecture to maintain data consistency across tax years, making it suitable for high-volume prior year work.

Pros

  • Robust diagnostics and error-checking for prior year amendments
  • Scalable relational database for multi-year data management
  • Seamless integration with Thomson Reuters ecosystem

Cons

  • Steep learning curve for new users
  • High subscription costs for smaller firms
  • Occasional web-based performance issues with large datasets

Best For

Mid-to-large CPA firms with high-volume prior year amendment and complex return needs.

Pricing

Custom enterprise pricing based on firm size and preparer count; typically $5,000+ annually per user or volume-based.

Official docs verifiedFeature audit 2026Independent reviewAI-verified
Visit GoSystem Tax RStax.thomsonreuters.com

Conclusion

Evaluating prior year tax software reveals a strong top trio, with TurboTax Desktop leading due to its extensive form support and downloadable convenience, making it a top pick for many. H&R Block Software stands out for its user-friendly guidance, appealing to those prioritizing ease of use, while TaxAct Desktop impresses with affordability and comprehensive state filing options, offering a solid alternative for budget-conscious users. Each of these tools caters to diverse needs, ensuring a seamless experience for preparing and amending prior returns.

TurboTax Desktop logo
Our Top Pick
TurboTax Desktop

Don't miss out—grab TurboTax Desktop today and simplify your prior year tax preparation with a solution trusted by many.

Tools Reviewed

All tools were independently evaluated for this comparison

Referenced in the comparison table and product reviews above.