Expert Guide Editorially reviewed

The Best Professional Tax Software for Accountants in 2026

Ten professional tax preparation suites for accounting and tax firms, priced on each vendor's own page in September 2026, from a pay-per-return entry plan under $400 a year to a quote-only enterprise contract.

Louis CorneloupFounder, Dupple · 900,000+ readers · Updated Sep 2026

Independently researched. No pay-for-placement. 10 tools compared

TL;DR

Drake Tax is the best professional tax software for most accounting firms in 2026, from $379.99 a year pay-per-return (10 individual returns included) up to $3,295 a year for unlimited individual and business returns on the Multi-User Pro plan. ATX 1040 starts lower at $1,249 a year for unlimited federal individual returns. TaxSlayer Pro Classic undercuts both at $1,395 a year for unlimited 1040s.

Firms filing high volumes of complex or multi-entity returns route to Lacerte or UltraTax CS. Large multi-office CPA firms already on Wolters Kluwer or Thomson Reuters pick CCH Axcess Tax or GoSystem Tax RS, both quote-only.

Key facts

Updated: September 25, 2026
Top pick: Drake Tax (best for: Firms that want unlimited individual returns for a flat annual price, not per seat)
Top pick price as of September 25, 2026: Drake Tax: Pay-Per-Return $379.99/yr (10 returns); 1040 Unlimited (Multi-User) $2,445/yr; Pro Unlimited (Multi-User) $3,295/yr.

10 tools compared: Drake Tax, Lacerte, ProSeries, UltraTax CS, CCH Axcess Tax, TaxAct Professional, ATX, TaxSlayer Pro, GoSystem Tax RS, OLT Pro
Lacerte (best for: Firms with complex, high-value returns that want Intuit's deepest professional tax engine): Pay-per-return license from $599/yr (promo; regular $813/yr); unlimited and bundle plans quote-only.
ProSeries (best for: Firms that want Intuit's software without Lacerte's price or its learning curve): Pay-Per-Return from $539/yr; 1040 Essentials $2,605/yr (promo; regular $4,007/yr); Basic 1040 $729/yr.
UltraTax CS (best for: Firms already on Thomson Reuters CS Professional Suite that need deep multi-state coverage): Quote-only; Thomson Reuters publishes no list price, priced by user count, return volume and states.

Every “best tax software” list a consumer sees is TurboTax, H&R Block and FreeTaxUSA wearing a 2026 headline. None of those file for a preparer with an EFIN and a client list.

Professional tax software means an EFIN-gated desktop or cloud package built to file dozens or thousands of 1040s and business returns a season, with per-preparer or per-return pricing that consumer software never shows.

The ten tools below are the ones an accounting or tax firm actually shortlists: Drake Tax, Lacerte, ProSeries, UltraTax CS, CCH Axcess Tax, TaxAct Professional, ATX, TaxSlayer Pro, GoSystem Tax RS and OLT Pro.

Finpresso data: Toolradar, the software directory we run, tracks 39 tax software tools on its tax software category page as of September 2026.

The tool it ranks first there, efile4Biz, is a 1099/W-2 information-return e-filer built for CPAs and business owners, not one of the 1040/1120 professional tax prep suites built for a preparer's desk that this page covers.

Top Picks

Based on features, real-world fit, and value for money.

Best Professional Tax Software for Accountants in 2026: 10 tools compared, updated Sep 2026
Tool	Pricing	Best for
Drake Tax	Pay-Per-Return $379.99/yr (10 returns); 1040 Unlimited (Multi-User) $2,445/yr; Pro Unlimited (Multi-User) $3,295/yr.	Firms that want unlimited individual returns for a flat annual price, not per seat
Lacerte	Pay-per-return license from $599/yr (promo; regular $813/yr); unlimited and bundle plans quote-only.	Firms with complex, high-value returns that want Intuit's deepest professional tax engine
ProSeries	Pay-Per-Return from $539/yr; 1040 Essentials $2,605/yr (promo; regular $4,007/yr); Basic 1040 $729/yr.	Firms that want Intuit's software without Lacerte's price or its learning curve
UltraTax CS	Quote-only; Thomson Reuters publishes no list price, priced by user count, return volume and states.	Firms already on Thomson Reuters CS Professional Suite that need deep multi-state coverage
CCH Axcess Tax	Quote-only; Wolters Kluwer publishes no list price, sold as flexible packages after a consultation.	Multi-office CPA firms already running other CCH Axcess cloud products
TaxAct Professional	1040 Bundle $1,175/yr (single) or $1,375/yr (multi); Complete Bundle $2,095 to $2,495/yr; rises Jan 1, 2027.	Firms that want unlimited 1040 and business filing without Drake or Lacerte's price tag
ATX	ATX 1040 $1,249/yr; ATX MAX $2,829/yr; Total Tax Office $4,189/yr; Advantage $6,859/yr; Pay-Per-Return $939 (6 returns).	Firms that want the deepest forms library on a Wolters Kluwer product at a published price
TaxSlayer Pro	Classic $1,395/yr; Pro Web (cloud) $1,595/yr; Premium $1,695/yr; all three include unlimited 1040 filing.	Small and seasonal preparers who want unlimited 1040 filing at a flat, published annual price
GoSystem Tax RS	Quote-only; Thomson Reuters publishes no list price for this enterprise, multi-entity tax platform.	Large, multi-entity firms filing consolidated corporate and complex partnership returns
OLT Pro	Check current pricing; OLT Pro's own pricing page lists no dollar figure for any of its three plans.	Small or seasonal preparers comfortable buying without a published price up front

Pricing read from each vendor's own published pricing page, checked Sep 2026. 1 of 10 does not publish one; those entries say so rather than estimating.

Drake Tax

Top Pick

Best for: Firms that want unlimited individual returns for a flat annual price, not per seat

PricingPay-Per-Return $379.99/yr (10 returns); 1040 Unlimited (Multi-User) $2,445/yr; Pro Unlimited (Multi-User) $3,295/yr.

+1040 Multi-User covers unlimited individual returns for the whole office at $2,445 a year, not per preparer

+Pay-Per-Return starts at $379.99 a year for 10 returns, the cheapest real entry point on this list

+Drake Tax Online adds a cloud pay-per-return option from $299.99 plus $99 per extra user, no desktop install required

−The 1040 tier excludes business returns; a firm needing 1065 or 1120 filing moves to the pricier Pro plan

−Multi-user pricing beats single-user by only $150 to $180 a year across tiers, a small discount for adding a seat

Visit Drake Tax →

Lacerte

Best for: Firms with complex, high-value returns that want Intuit's deepest professional tax engine

PricingPay-per-return license from $599/yr (promo; regular $813/yr); unlimited and bundle plans quote-only.

+Pay-per-return license starts at $599 a year, a promotional rate against Intuit's own $813 regular price

+Unlimited client tax advisory reports and digital signatures ship on every plan, not gated to a pricier tier

+Unlimited 1099 and W-2 filing is included on the custom unlimited and bundle plans

−The real cost for a firm filing more than a handful of returns is a quote, not a published number

−Per-return fees on top of the base license are not published; a firm has to call sales to price a season

Visit Lacerte →

ProSeries

Best for: Firms that want Intuit's software without Lacerte's price or its learning curve

PricingPay-Per-Return from $539/yr; 1040 Essentials $2,605/yr (promo; regular $4,007/yr); Basic 1040 $729/yr.

+Basic 1040 starts at $729 a year with a choice of 20, 50 or unlimited individual returns

+The 1040 Essentials tier is promoted at $2,605 a year, well under its own $4,007 regular price

+Pay-Per-Return starts at $539 a year for firms that do not want an unlimited commitment

−ProSeries Essentials' promoted $3,641 a year reverts to $5,602 once the current-season discount ends

−Advanced, the tier built for full business return coverage, is call-for-pricing only, not a published number

Visit ProSeries →

UltraTax CS

Best for: Firms already on Thomson Reuters CS Professional Suite that need deep multi-state coverage

PricingQuote-only; Thomson Reuters publishes no list price, priced by user count, return volume and states.

+Ties directly into the rest of CS Professional Suite (practice management, fixed assets, workpapers) for firms already on it

+Pricing scales by users, returns and states, so a small firm is not paying for enterprise capacity it does not use

+Deep multi-state and entity support is the reason large firms keep paying for it over cheaper desktop tools

−No published price at all; a firm cannot budget it without a sales conversation first

−Built around the CS Professional Suite ecosystem, so a firm on a different stack gains less from switching

Visit UltraTax CS →

CCH Axcess Tax

Best for: Multi-office CPA firms already running other CCH Axcess cloud products

PricingQuote-only; Wolters Kluwer publishes no list price, sold as flexible packages after a consultation.

+Cloud-native, so a multi-office firm gets one shared return database without hosting its own servers

+Ties into the rest of the CCH Axcess suite (Document, Workflow, Practice) that many large firms already run

+Scales from a solo practitioner to a large firm on the same platform, per Wolters Kluwer's own pricing page

−No published price; every quote goes through a solution consultant, unlike ATX's listed packages from the same parent company

−A firm not already inside the Wolters Kluwer ecosystem gains less from the cross-product integration that justifies the cost

Visit CCH Axcess Tax →

TaxAct Professional

Best for: Firms that want unlimited 1040 and business filing without Drake or Lacerte's price tag

Pricing1040 Bundle $1,175/yr (single) or $1,375/yr (multi); Complete Bundle $2,095 to $2,495/yr; rises Jan 1, 2027.

+The 1040 Bundle at $1,175 a year (single user) undercuts Drake Tax's unlimited 1040 tier by over $1,200

+Complete Bundle at $2,095 a year covers unlimited 1040, 1065, 1120, 1120S, 1041 and 990 filing in one price

+1040 Pay-Per-Return at $169.99 a year plus $29.99 a return is the cheapest professional entry point on this list

−Every bundle price on this page rises on January 1, 2027, so a firm buying late in the season pays more

−Multi-user access costs $200 more a year than single-user on both the 1040 and Complete bundles

Visit TaxAct Professional →

ATX

Best for: Firms that want the deepest forms library on a Wolters Kluwer product at a published price

PricingATX 1040 $1,249/yr; ATX MAX $2,829/yr; Total Tax Office $4,189/yr; Advantage $6,859/yr; Pay-Per-Return $939 (6 returns).

+ATX 1040 at $1,249 a year is a real published price, unlike CCH Axcess Tax from the same parent company

+Over 6,000 forms cover specialty returns (706, 709, 990, 5500) that entry-level competitors skip

+Every tier includes CCH AnswerConnect Master Tax Guide research, not sold as a separate line item

−ATX 1040 caps at 3 states and excludes business returns, which run pay-per-return on that tier alone

−Advantage's advanced calculations and asset management, its two headline features, cost $819 and $520 as standalone add-ons on cheaper tiers

Visit ATX →

TaxSlayer Pro

Best for: Small and seasonal preparers who want unlimited 1040 filing at a flat, published annual price

PricingClassic $1,395/yr; Pro Web (cloud) $1,595/yr; Premium $1,695/yr; all three include unlimited 1040 filing.

+Classic at $1,395 a year is the second-cheapest unlimited-1040 professional product on this list, after ATX 1040

+Pro Web at $1,595 a year runs in a browser, useful for a remote or multi-location team

+Premium at $1,695 a year adds e-filing for 706, 709, 990, 1041, 1065, 1120 and 1120-S in one price

−Corporate return filing needs Premium; Classic's entry price does not cover a single business return

−Client portal and digital signature tools are missing from Classic, so a paperless office needs Pro Web or Premium instead

Visit TaxSlayer Pro →

GoSystem Tax RS

Best for: Large, multi-entity firms filing consolidated corporate and complex partnership returns

PricingQuote-only; Thomson Reuters publishes no list price for this enterprise, multi-entity tax platform.

+Built for consolidated corporate and multi-entity returns that desktop tools like ATX or TaxSlayer Pro are not designed for

+Runs on Thomson Reuters' server infrastructure rather than a local desktop, useful for a firm without its own IT team

+Handles the complex partnership and international filings large firms need, the reason it survives against cheaper desktop options

−No published price anywhere; a small or mid-size firm has no way to compare the cost before a sales call

−Overbuilt for a firm mostly filing individual 1040s; the tools above cost far less for that workload

Visit GoSystem Tax RS →

OLT Pro

Best for: Small or seasonal preparers comfortable buying without a published price up front

PricingCheck current pricing; OLT Pro's own pricing page lists no dollar figure for any of its three plans.

+OLTPRO Online and OLTPRO Desktop both include unlimited individual and business returns across all 50 states plus DC

+A 25-return tier exists for a small or seasonal preparer who does not need the unlimited plans

+Free e-filing, a taxpayer portal and a mobile app ship on the Online plan without a separate module fee

−The pricing page names three plans but publishes no dollar amount for any of them, unusual even among quote-only competitors here

−A preparer cannot compare OLT Pro's real cost to Drake Tax or ATX without creating an account or calling sales

Visit OLT Pro →

What it is

Professional tax software is a desktop or cloud application, sold to a licensed preparer with an EFIN. It prepares and e-files individual (1040) and business (1065, 1120, 1120S, 1041, 990 and more) returns for paying clients.

Pricing usually runs per return, per seat or by an unlimited annual license, instead of a single consumer purchase.

How we compared: ten vendor pricing pages read directly in September 2026, ranked for solo preparers through mid-size firms, with no paid placement.

Why it matters

Price a 5-preparer firm filing mostly 1040s for a season and the spread is real money. Drake Tax's unlimited 1040 tier covers the whole office for one flat total, not per seat, and its cheapest unlimited plan already undercuts TaxSlayer Pro Classic's own unlimited-1040 price.

ATX MAX at $2,829 a year adds unlimited business filing that Drake's 1040-only tier does not include.

Pay-per-return tiers flip the math for a small or seasonal practice.

Drake's entry plan covers 10 individual returns for well under $400, then charges per extra return; file 40 returns a season and the unlimited 1040 tier already costs less. TaxAct Professional's 1040 Pay-Per-Return is $169.99 a year plus a per-return fee, the cheapest way into a real professional product for a preparer filing under 20 returns.

Key features to look for

Pricing model: unlimited, bundle or pay-per-return

Drake Tax, ATX, TaxSlayer Pro and TaxAct Professional sell flat annual tiers. Lacerte, ProSeries, UltraTax CS, CCH Axcess Tax and GoSystem Tax RS shift to a custom quote once a firm outgrows the entry pay-per-return plan.

Business return coverage

Drake Tax 1040, ATX 1040 and TaxSlayer Pro Classic cover individual filing only; 1065, 1120, 1120S, 1041 and 990 coverage sits on a pricier tier (ATX MAX, TaxSlayer Pro Premium) or a separate module.

Desktop vs cloud

TaxSlayer Pro Web, Drake Tax Online and OLTPRO Online run in a browser. Lacerte, ProSeries, ATX and TaxAct Professional are desktop installs, with cloud hosting sold as a separate add-on.

State and e-filing coverage

ATX 1040 caps at three states before the unlimited ATX MAX tier; most competitors include all states and unlimited e-filing from their entry unlimited plan, with per-state fees only on pay-per-return tiers.

Published price vs quote-only

UltraTax CS, CCH Axcess Tax and GoSystem Tax RS publish no price at all. OLT Pro names three plans with no dollar figure on its own pricing page. The rest list a real number.

Pricing

Six of these ten vendors publish a straight US-dollar price on their own pricing page, checked in September 2026: Drake Tax, ProSeries (pay-per-return and Basic tiers), TaxAct Professional, ATX and TaxSlayer Pro. Lacerte and ProSeries publish an entry pay-per-return price but move to a custom quote once a firm needs an unlimited or bundle plan.

UltraTax CS, CCH Axcess Tax and GoSystem Tax RS are quote-only outright, and OLT Pro names three plans on its own pricing page without a single dollar figure attached to any of them.

Two current promotions change the Intuit numbers: Lacerte's pay-per-return license and ProSeries 1040 Essentials are both discounted against a published regular price for this season's offer.

TaxAct Professional's bundle prices carry a published increase in the other direction: every 1040 and Complete bundle price rises on January 1, 2027, so the entry points shown here are the current, lower rate.

See our best crypto tax software list if the return in question is a personal crypto filing rather than a firm's client book.

Plan	Price	Best for
Drake Tax Pay-Per-Return	$379.99/yr (10 returns)	$49.99 per additional individual return, $74.99 per business return
Drake Tax 1040 (Single User)	$2,325/yr	150 individual returns; business returns billed at $74.99 each
Drake Tax 1040 (Multi-User)	$2,445/yr	Unlimited individual returns; business returns billed at $74.99 each
Drake Tax Pro 250 (Multi-User)	$2,495/yr	250 total individual and business returns combined
Drake Tax Pro (Multi-User)	$3,295/yr	Unlimited individual and business returns, one office
Drake Tax Online	$299.99 base	Cloud pay-per-return; $99 per additional user
Lacerte Pay-Per-Return license	$599/yr (promo; regular $813/yr)	Base annual license; per-return fees billed separately, not published
Lacerte Custom Bundle or Unlimited	Custom quote	Bundles or unlimited individual and business returns, all states
ProSeries Pay-Per-Return	From $539/yr	Annual license fee; returns billed as filed
ProSeries Basic 1040	$729/yr	Choice of 20, 50 or unlimited individual returns
ProSeries 1040 Essentials	$2,605/yr (promo; regular $4,007/yr)	Unlimited 1040 and state returns; business returns pay-per-return
ProSeries Essentials	$3,641/yr (promo; regular $5,602/yr)	Choice of a 200 or 400 individual and business return bundle
ProSeries Advanced	Call for pricing	Unlimited individual and business returns, all states
UltraTax CS	Custom quote	Priced by user count, return volume and states of operation
CCH Axcess Tax	Custom quote	Flexible cloud packages, priced after a consultation
TaxAct 1040 Pay-Per-Return	$169.99/yr	$29.99 per e-filed or printed 1040, $44 per state edition
TaxAct 1040 Twenty Bundle	$725/yr	20 individual returns included; $29.99 per additional return
TaxAct 1040 Bundle (single user)	$1,175/yr	Unlimited individual returns; rises to $1,275/yr on Jan 1, 2027
TaxAct 1040 Bundle (multi-user)	$1,375/yr	Unlimited individual returns; rises to $1,475/yr on Jan 1, 2027
TaxAct Business Pay-Per-Return	$279.99/yr	$29.99 per 1040, $49.99 per business return, $49 per state
TaxAct Business Forty Bundle	$1,095/yr	40 total individual and business returns combined
TaxAct Complete Bundle (single user)	$2,095/yr	Unlimited individual and business returns; rises to $2,275/yr on Jan 1, 2027
TaxAct Complete Bundle (multi-user)	$2,495/yr	Unlimited individual and business returns; rises to $2,675/yr on Jan 1, 2027
ATX 1040	$1,249/yr	Unlimited federal individual returns, 3 states; business returns pay-per-return
ATX MAX	$2,829/yr	Unlimited individual and business returns, all states, unlimited e-filing
ATX Total Tax Office	$4,189/yr	Adds CCH AnswerConnect Federal Scholar tax research
ATX Advantage	$6,859/yr	Adds advanced calculations, enhanced asset management and concierge support
ATX Pay-Per-Return System	$939 (6 returns included)	Federal and state individual, business and specialty returns
TaxSlayer Pro Classic	$1,395/yr	Unlimited 1040 filing; no corporate return module
TaxSlayer Pro Web	$1,595/yr	Cloud-based; unlimited 1040, corporate filing call for details
TaxSlayer Pro Premium	$1,695/yr	Adds e-filing for forms 706, 709, 990, 1041, 1065, 1120 and 1120-S
GoSystem Tax RS	Custom quote	Enterprise, multi-entity consolidated tax platform
OLTPRO Online	Check current pricing	Unlimited individual and business returns, cloud-based
OLTPRO 25-Return	Check current pricing	25 created tax returns, individual and business combined
OLTPRO Desktop	Check current pricing	Unlimited individual and business returns, local network

Mistakes to avoid

×Picking Drake Tax's 1040 tier for a firm that also files business returns, because the jump to the unlimited Pro plan is a bigger step up than starting on the right tier from day one.

×Signing a TaxAct Professional bundle without checking the date, because every 1040 and Complete bundle price on its page rises to a higher retail rate on January 1, 2027.

×Treating ATX 1040's entry price as the full product, because it excludes business returns entirely and caps state filing at three, both of which push a growing firm to the pricier ATX MAX tier.

×Requesting a Lacerte or UltraTax CS quote without a firm return count in hand, because both price by volume and a vague estimate invites the higher end of the range.

Expert tips

→Count last season's return volume by type before comparing tiers: Drake's Pay-Per-Return plan breaks even against its 1040 Unlimited tier at roughly 40 individual returns.

→Ask Lacerte and ProSeries for the renewal-year price, not the promotional one; both list a regular price well above what the current season's campaign charges.

→If the firm needs consolidated or multi-entity corporate returns, price GoSystem Tax RS or UltraTax CS before defaulting to a desktop tool built for 1040 volume.

→Call OLT Pro directly before assuming it is the cheapest option here; its own pricing page names three plans without a single dollar figure to compare.

The bottom line

Start with Drake Tax if the firm wants a real published price and unlimited individual returns without per-seat billing, with business filing added on the Pro tier at $3,295 a year.

Choose ATX 1040 or TaxSlayer Pro Classic for the lowest published entry price into unlimited 1040 filing, both under $1,400 a year.

Pick TaxAct Professional when the firm needs unlimited business filing too, at the lowest bundle price on this list before its January 2027 increase, and pick ATX MAX or ATX Advantage for the deepest forms library on a published price.

Lacerte and ProSeries fit a firm already inside Intuit's ecosystem, both starting under $600 a year pay-per-return before either vendor's quote-only unlimited plans take over.

UltraTax CS, CCH Axcess Tax and GoSystem Tax RS are the calls to make once a firm is large enough that a sales consultation, not a price list, is how the software gets bought.

For the firm's day-to-day workflow rather than the tax engine itself, read our best practice management software for accounting firms list. Cite this: Finpresso, "Best Professional Tax Software for Accountants in 2026", September 2026.

Frequently asked questions

What is the best professional tax software for accountants in 2026?

Drake Tax, for most firms, because it publishes a real price for every tier and covers unlimited individual returns for the whole office on one flat plan, with business filing added on its Pro tier. ATX 1040 and TaxSlayer Pro Classic undercut it on price for a firm that only needs unlimited 1040 filing, not a business return.

How much does professional tax software cost?

Entry pay-per-return plans start under $400 a year on Drake Tax, and TaxAct Professional's own pay-per-return plan is priced similarly with a per-return fee on top. Unlimited annual plans run from TaxAct Professional's 1040 Bundle, the cheapest on this list, up to $6,859 a year on ATX Advantage. UltraTax CS, CCH Axcess Tax and GoSystem Tax RS publish no price at all; a firm has to request a quote.

Is there a cheap professional tax software for a solo preparer?

ATX 1040 covers unlimited federal individual returns and three states at the lowest published unlimited-1040 price on this list. TaxSlayer Pro Classic and Drake Tax's Pay-Per-Return plan, priced under $400 a year for 10 returns, are the next cheapest real options for a preparer filing a modest season.

Drake Tax vs Lacerte: which should I get?

Drake Tax publishes a straight annual price for every tier, from its pay-per-return entry plan to its unlimited Pro tier. Lacerte's pay-per-return license is priced too, but it moves to a custom quote once a firm needs an unlimited or bundle plan, so the real cost depends on a sales conversation. Choose Drake Tax for price transparency and Lacerte if the firm already runs on Intuit's ecosystem and needs its deeper return engine.

Does ATX include business tax returns?

Only from ATX MAX up, at $2,829 a year. The entry ATX 1040 plan covers unlimited federal individual returns and caps at three states, with business returns billed pay-per-return on that tier alone. ATX Total Tax Office at $4,189 a year and the top Advantage tier add deeper research and asset management on top of the same unlimited individual and business filing.

Why do UltraTax CS and CCH Axcess Tax not list a price?

Both are enterprise products from Thomson Reuters and Wolters Kluwer, priced by user count, return volume, states and, for CCH Axcess Tax, the other cloud products a firm already runs. Neither vendor publishes a number a solo preparer could compare against Drake Tax or ATX; a firm requests a quote for both.

What is the cheapest way to try professional tax software before committing to a full season?

A pay-per-return plan avoids the unlimited commitment: Drake Tax's Pay-Per-Return plan covers 10 individual returns for well under $400 a year, and TaxAct Professional's 1040 Pay-Per-Return is $169.99 a year plus a per-return fee. Both let a preparer test the software on a real season's volume before deciding whether an unlimited tier pays for itself.

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