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.
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.
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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.
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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