Federal + state tax logic
We encode IRS instructions and official state guidance into calculators updated for 2025 and 2026.
Rule set2025-2026
Federal baseline
UpdatedState overlays
50 statesFederal + state tax calculators that turn IRS rules into instant answers. Plan with confidence.
TaxGuide Pro is an all-in-one tax intelligence platform with 70+ calculators for 2025 and 2026 taxes, covering refunds, W-4 withholding, self-employment, credits, deductions, and state-specific rules. Get clear explanations and next steps to avoid penalties and overpaying.
Processed over
12,000,000+
tax files
Tax calculator library
A complete library of federal and state tax calculators.
A library of 70+ tools for 2025 and 2026 taxes, built around real IRS and state questions.
Use cases
Built for the tax questions
people search for.
From refunds to capital gains, each calculator maps to a real IRS or state tax question.
Use cases
Refunds + W-4 withholding
Use the tax refund estimator and W-4 tools to tune withholding before you file.
Explore calculators"The refund estimator finally explained why my paycheck changes mattered."Everyday filer
How it works
Built to turn IRS and state rules
into clear answers.
We translate IRS and state guidance into calculators for 2025 and 2026 taxes that explain themselves and outline the next best step.
Plain-English explanations
Every result includes why it is what it is, plus clear steps to reduce taxes or avoid penalties.
Why this numberExplained
Next best step: adjust withholding
State-aware context
Tools adapt to filing status, income type, and location for accurate, local results.
LocationAuto
CAState credits
AppliedTXNo income tax
AdjustedFeatures
All-in-one tax intelligence for 2025-2026.
We help people calculate taxes correctly, understand their options, and avoid costly mistakes without a CPA.
Interactive tax calculators
IRS-based federal and state tools for refunds, withholding, credits, deductions, penalties, and side income.
State-aware logic
Tools adapt automatically by state and filing status, avoiding generic advice.
Plain-English explanations
Every result is paired with a human-readable breakdown of IRS rules applied.
Compliance-first sourcing
Logic sourced from IRS instructions and official state guidance to avoid penalties.
Actionable next steps
Clear, legal steps to reduce taxes or avoid surprises after every calculation.
More tools every quarter
New IRS and state calculators added regularly based on real search intent.
Questions,
answered.
Explore calculatorsCalculators are built from current IRS instructions and official state guidance for 2025 and 2026. We show inputs and assumptions so you can verify results and understand the logic.
Yes. Where rules differ by state, tools automatically apply local logic and highlight any state-specific exceptions.
Results are informational and educational, not legal tax advice. For complex situations, consult a qualified tax professional.
Calculators are free to use. Each tool offers an optional $3 one-time guide with step-by-step instructions, audit-safe explanations, and checklists.
There are 70+ calculators across refunds, withholding, capital gains, self-employment, credits, deductions, and state-specific rules, with new tools added regularly.
