Best Business Tax Software of 2026
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Business tax software has to handle returns the personal products will not even open: Form 1120 for C-corporations, Form 1120-S for S-corporations, Form 1065 for partnerships and multi-member LLCs, and Form 990 for non-profits. Each comes with its own ecosystem of K-1 schedules, depreciation rules, basis tracking, and state-by-state apportionment. Pick a platform that does not actually support your entity type and you will hit a wall mid-filing — usually after you have already paid.
We tested business tax software on real returns: a single-shareholder S-corp with $420K revenue, a two-partner LLC with rental and operating activity, a small C-corp with foreign-sourced income, and a non-profit with unrelated business income. Below are the best business tax software options for 2026, ranked across DIY, prosumer, and pro-grade tiers.
How We Ranked the Best Business Tax Software
We weighted: entity coverage — 1120, 1120-S, 1065, 990 (25%), depreciation, basis, and book-to-tax adjustments (20%), K-1 generation and distribution (15%), state and apportionment support (15%), multi-state and multi-entity workflow (15%), and price relative to a CPA engagement (10%).
Top 10 Business Tax Software for 2026
| Rank | Software | Entities | Federal Price | State | Best For |
|---|---|---|---|---|---|
| 1 | TurboTax Business | 1120, 1120-S, 1065, 990 | $190 | $55 | Single-state SMB |
| 2 | H&R Block Premium & Business | 1120, 1120-S, 1065, 990 | $90 | $40 | Best DIY value |
| 3 | TaxAct Business | 1120, 1120-S, 1065 | $140 | $60 | Mid-tier middle ground |
| 4 | Drake Tax | All federal + state | ~$1,825/yr unlimited | included | Small CPA firm |
| 5 | ProConnect Tax Online | All federal + state | $469 starter / $3,099+ | tier-based | Cloud-first preparers |
| 6 | Lacerte | All federal + state | ~$3,800/yr | included | High-volume CPA practice |
| 7 | UltraTax CS | All federal + state | $4,500+/yr | included | Mid-size firms |
| 8 | CCH Axcess Tax | All federal + state | $5,000+/yr | included | Multi-office firms |
| 9 | ProSeries Professional | All federal + state | $2,400+/yr | included | Solo CPAs |
| 10 | ATX Total Tax Office | All federal + state | $2,600+/yr | included | Forms-driven preparers |
Affiliate disclosure: Starbo Serve may earn a commission when you sign up through links in this article. This never affects our rankings — every product is reviewed on the same scoring rubric.
1. TurboTax Business — Best DIY for Most Small Businesses
TurboTax Business (Windows desktop only) handles 1120, 1120-S, 1065, and 990 for $190 federal and $55 per state. It walks owners through K-1 generation, basis tracking, Section 179 elections, and the QBI deduction at the entity level. The interview is plainer than the personal product but still the best DIY business experience.
Pros: Covers all four major business entities, generates and prints K-1s, asset-depreciation tools. Cons: Windows only, no Mac or web version, single business per copy.
2. H&R Block Premium & Business — Best DIY Value
H&R Block Premium & Business (Windows desktop) covers 1120, 1120-S, 1065, and 990 at $90 federal plus $40 state — less than half TurboTax Business. Forms support is comparable, the interview a touch less guided. For a single-state S-corp filing without complications, it is the best dollar in DIY business tax.
Pros: ~$100 cheaper than TurboTax Business, identical entity coverage, Schedule K-1 print. Cons: Windows only, fewer integrations, plainer interface.
3. TaxAct Business — Best Online Business Filing
TaxAct Business is one of the few online business tax products. 1120 at $140, 1120-S at $140, 1065 at $140, with state at $60 each. Cloud-based means Mac users have an option that does not require Parallels.
Pros: Web-based, Mac-friendly, prior-year carryover, decent depreciation tools. Cons: Slightly slower than desktop products, narrower import paths.
4. Drake Tax — Best Pro-Grade Value
Drake Tax is the workhorse of small CPA firms. Unlimited federal and state returns for around $1,825/year (Drake Tax Pro), with a forms-first interface beloved by long-time preparers. Drake Documents and Drake Portals handle e-signature and client portals.
Pros: Unlimited returns, fast, lowest TCO among professional packages. Cons: Older UI, smaller integration ecosystem than Intuit.
5. ProConnect Tax Online — Best Cloud Pro Tax
Intuit’s ProConnect Tax is the cloud-first option for accountants. Pricing starts at $469 per return tier, scaling to $3,099+ per year for higher-volume firms. Native QuickBooks Online sync, real K-1 distribution, and audit support workflows.
Pros: Cloud, multi-user, deep QuickBooks integration. Cons: Per-return pricing punishes volume, support quality varies.
6. Lacerte — Best for High-Volume Practices
Lacerte at ~$3,800/year is Intuit’s high-end pro product. Unlimited federal and state returns, deep multi-state apportionment, complex consolidation handling. Used by mid-size CPA firms.
7. UltraTax CS — Best for Multi-Service CPA Firms
Thomson Reuters UltraTax CS, $4,500+/year, integrates with Onvio Documents, Practice CS, and Fixed Assets CS. Used by firms running an integrated CS Professional Suite.
8. CCH Axcess Tax — Best for Multi-Office Firms
CCH Axcess Tax at $5,000+/year is Wolters Kluwer’s cloud platform. Strong for firms with multiple offices and complex multi-entity preparation. Pairs with CCH Axcess Workflow and Document.
9. ProSeries Professional — Best for Solo CPAs
Intuit ProSeries at $2,400+/year is the older Windows-based pro product. Solid for a one-person practice that prefers a forms-mode interface.
10. ATX Total Tax Office — Best Forms-Driven Pro Pick
Wolters Kluwer ATX at $2,600+/year is forms-first, fast at data entry, and supports unlimited returns. Popular with preparers who learned tax in the days of paper schedules.
Federal Price Comparison by Entity
| Entity | TurboTax Business | H&R Block P&B | TaxAct Business | Drake (per return) | ProConnect (per return) |
|---|---|---|---|---|---|
| 1120 (C-corp) | $190 | $90 | $140 | included | $146 |
| 1120-S (S-corp) | $190 | $90 | $140 | included | $146 |
| 1065 (Partnership) | $190 | $90 | $140 | included | $146 |
| 990 (Non-profit) | $190 | $90 | not supported | included | $146 |
| State (each) | $55 | $40 | $60 | included | tier-based |
How to Choose Business Tax Software
- Identify your entity type first. S-corp, C-corp, partnership, and non-profit all need different forms — verify the platform supports yours.
- Plan for K-1 distribution. S-corps and partnerships must issue K-1s by March 15; missed K-1 penalties run $245 per partner per month.
- Check state apportionment if you operate in multiple states — DIY products handle simple cases but struggle with sales/property/payroll factors.
- Decide DIY vs. pro. Below ~$1M revenue and one state, DIY usually works. Multi-state, foreign sourcing, or any audit history points to a CPA package.
- Don’t forget basis tracking. Owners need stock and debt basis for S-corps, capital account for partnerships — DIY products track this only as well as you tell them to.
Recommended Offers
💡 Editor’s pick — Best DIY overall: TurboTax Business for owners who want guided interviews on 1120, 1120-S, 1065, or 990.
💡 Editor’s pick — Best DIY value: H&R Block Premium & Business at $90 federal — same entity coverage as TurboTax Business at less than half the price.
💡 Editor’s pick — Best pro-grade: Drake Tax at ~$1,825/year for unlimited returns is the best value in professional tax software.
FAQ — Best Business Tax Software
Q: Can I file my S-corp return through TurboTax Online? A: No. TurboTax Online is for personal returns. You need TurboTax Business (Windows desktop) for 1120-S.
Q: When are business tax returns due in 2026? A: 1120-S and 1065 are due March 15, 2026 (or six-month extension to September 15). 1120 (C-corp) is due April 15, 2026 (or extension to October 15).
Q: Do I need to file Schedule K-1s separately? A: K-1s are part of the 1120-S or 1065 return — the software generates them. You then deliver each K-1 to the shareholder/partner so they can file their personal return.
Q: Will TurboTax Business handle a multi-state corporation? A: It handles state-by-state filings for one home state plus additional states at $55 each, but apportionment for complex sales factors is limited. For multi-state operations consider Drake or ProConnect.
Q: What about Form 1120-F or international returns? A: DIY products do not support 1120-F (foreign corp) or international forms reliably. Use a pro package or hire a CPA.
Q: How much does a CPA cost vs. business tax software? A: A CPA-prepared 1120-S typically runs $900–$2,500 depending on complexity. DIY at $190–$240 saves money but assumes you know the rules — missed elections cost more than the savings.
Related Reading on Starbo Serve
- Best Tax Software of 2026: Top 10 Compared
- Best Tax Software for Self-Employed 2026
- Best Tax Preparation Software for CPAs 2026
- Best Accounting Software 2026
- QuickBooks vs Xero
Final Verdict
For an SMB owner filing a single-state S-corp or partnership, H&R Block Premium & Business at $90 federal is the best value, period. TurboTax Business earns the upgrade if you want a smoother interview or you file a 990. Owners with multi-state activity, foreign income, or any kind of complexity should stop reading DIY reviews and engage a CPA running Drake Tax or ProConnect — the cost differential is modest and the missed-election risk is not. Match the tool to the entity, not the brand.
This article is for informational purposes only and is not tax advice. Software pricing, features, and IRS rules are accurate as of publication and subject to change. Starbo Serve may receive compensation for some placements; rankings are independent.
By Starbo Serve Editorial · Updated May 9, 2026
- tax software
- business tax software
- 2026
- tax filing