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Free AI-powered tax calculators
for freelancers and small business owners.

Updated for 2026 tax law, including OBBBA changes. 9 free tools, no sign-up, no paywall. Everything journalists and directory editors need is on this page.

9
Free tax calculators
50+
States compared
2026
OBBBA rates included
AI
Powered tax advisor

Tools in Action

TaxStackHub's calculator suite — free, no login required, updated for 2026 U.S. tax law. Screenshots are representative of the live tools at taxstackhub.ai.

taxstackhub.ai/tools/se-tax-calculator
Calculator
Self-Employment Tax Calculator
Calculates SE tax (15.3%), the deductible half, and net owed. Covers the $184,500 SS wage base for 2026.
Net self-employment income$95,000
Filing statusSingle
SE Tax Owed $13,414
taxstackhub.ai/tools/state-tax-stack
AI-Powered
State Tax Stack Comparison
All 50 states + DC. Compare income, sales, property, capital gains, estate, and inheritance taxes in one view.
ComparingTX vs CA vs NY
Income$150,000
TX saves you vs CA $18,240/yr
taxstackhub.ai/tools/entity-comparison
Comparison
Entity Structure Comparison
Side-by-side tax math for Sole Prop, LLC, S-Corp, and C-Corp at any income. Shows exactly what each structure costs you.
Annual profit$120,000
Reasonable salary (S-Corp)$70,000
S-Corp saves vs LLC $7,650/yr
taxstackhub.ai/tools/qbi-deduction-calculator
AI-Powered
QBI Deduction Calculator
Computes the 23% QBI deduction under the OBBBA (up from 20% in 2025), made permanent starting 2026.
Qualified business income$140,000
Taxable income$155,000
QBI Deduction (23%) $32,200

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Elevator Pitches

Use these as-is when listing TaxStackHub in directories, articles, or comparison roundups. Attribution: TaxStackHub (taxstackhub.ai).

50 words — Short listing

TaxStackHub is a free, AI-powered tax calculator suite for U.S. freelancers and small business owners. It includes 9 tools — SE tax, QBI deduction (23% under OBBBA), S-Corp election analysis, entity comparison, 50-state tax comparison, and more — updated for 2026 tax law. No account required.

150 words — Full description

TaxStackHub is a free, AI-powered tax intelligence platform for U.S. freelancers, 1099 workers, and small business owners. It offers 9 free calculators covering every major tax decision a small business owner faces: self-employment tax, QBI deduction (now 23% under the One Big Beautiful Bill Act), S-Corp election breakeven, entity structure comparison, quarterly estimated taxes, home office deduction, reasonable S-Corp salary, and 50-state tax comparison. All tools are updated for 2026 tax law, including OBBBA changes that took effect this year. Results are calculated server-side using IRS-sourced formulas — not AI-generated approximations. An integrated AI Tax Advisor answers follow-up questions in plain language. TaxStackHub is free to use with no account, no paywall, and no upsell to human professionals. It is part of the Stack Network, a family of AI-powered intelligence tools for U.S. business owners.


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Press & Partnership Inquiries

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