🏛️ Tax Calculators
All 19 free tax calculators in one place — Estimate taxes with 18 free tax calculators — the Paycheck Net Take-Home (2026), W-4 Withholding, and Freelance 1099 Tax tools help employees, freelancers, and investors plan with confidence.. Every tool runs 100% client-side in your browser: no sign-up, no uploads, instant answers.
Last updated: September 2026 · 19 free tools
The Complete Guide to Tax Calculators
Taxes touch every paycheck, every freelance invoice, and every investment sale — yet most people only think about them in April. This hub collects 19 free tax calculators for W-2 employees, freelancers and gig workers, investors, landlords, and small business owners. Estimate what you owe, tune your withholding, plan quarterly payments, and compare tax strategies — all instantly, and all without your numbers ever leaving your browser.
For employees: keep more of every paycheck
The Paycheck Net Take-Home (2026) calculator breaks down exactly where each dollar of your salary goes: federal tax, state tax, Social Security, Medicare, and pre-tax deductions. If last April brought an unpleasant surprise — or a giant refund that was really an interest-free loan to the IRS — the W-4 Withholding Calculator helps you dial your allowances so your withholding lands close to your actual liability. The Tax Refund Estimator previews filing season before you file, the Bonus Tax Calculator shows how much of a bonus survives supplemental-wage withholding, and the RSU Tax Calculator estimates what vesting stock will cost you in taxes.
For the self-employed: stay ahead of quarterly deadlines
Freelancers do not get withholding — the IRS still wants its money four times a year. The Freelance 1099 Tax Estimator projects your total bill, the Self-Employment Tax Calculator isolates the Social Security and Medicare portion (both halves, since you are employer and employee), and the Quarterly Tax Calculator sizes each estimated payment so you avoid underpayment penalties. Choosing a business structure? The LLC Tax Calculator estimates pass-through liability while the S-Corp Tax Savings Calculator models the classic salary-vs-distribution split that can reduce self-employment tax once profits are high enough.
For investors, families, and movers
The Capital Gains Tax (2026) calculator separates short-term from long-term treatment before you sell, and the Roth Conversion Tax tool weighs the upfront tax cost of a conversion against decades of tax-free growth. Families can check the Child Tax Credit & EITC estimator, high-net-worth households can model the Estate & Lifetime Gift Tax, homeowners get the Property Tax & Mill Rate calculator, shoppers get US State Sales Tax, and anyone considering a move can compare all 50 states with the State Tax Relocation calculator.
How to pick the right tool
Employees: start with Paycheck Net Take-Home, then W-4 Withholding, then the Tax Refund Estimator. Freelancers and gig workers: 1099 Estimator, Self-Employment Tax, and Quarterly Tax — in that order. Investors: Capital Gains and Roth Conversion. Movers: State Tax Relocation before you sign a lease. And one honest note: these are estimates for planning, not professional tax advice. Tax law is intricate and changes yearly — verify anything consequential with a CPA or the IRS before you file or make irrevocable moves.
🏛️ All 19 Tax Calculators
Every tool below is free, unlimited, and runs entirely in your browser — pick the one that matches your question.
See how much of your work bonus survives federal withholding and where it lands.
Calculate US federal and state capital gains tax for short-term and long-term asset sales, including the 3.8% Net Investment Income Tax (NIIT).
Calculate your 2026 federal Child Tax Credit (CTC), refundable Additional Child Tax Credit (ACTC), and Earned Income Tax Credit (EITC).
Determine federal estate tax liabilities, unified lifetime gift exemptions, and portability benefits for high-net-worth families.
Calculate Schedule C self-employment tax (15.3%), write-off savings, and quarterly estimated IRS tax obligations.
Estimate federal and self-employment taxes on LLC income for single and multi-member setups.
Calculate annual and monthly US property taxes using assessed home value, county mill rates, and local homestead exemption deductions.
Work out your estimated quarterly tax payments to avoid underpayment penalties.
Calculate the upfront income tax cost of converting Traditional IRA funds to a Roth IRA versus decades of tax-free compound growth and future RMD elimination.
Model tax-free compounding under IRS annual contribution limits ($7,000/yr) and tax savings in retirement.
Estimate taxes on restricted stock units at vest, including withholding and capital gains.
Compare S-corp salary-vs-distribution splits to find the self-employment tax sweet spot.
Compute sales tax and total checkout price for purchases using state and average local combined tax rates.
Estimate Social Security and Medicare taxes owed on freelance and gig income.
Compare state income tax differences across all 50 US States + DC and calculate take-home pay boost before moving.
Get a quick read on whether you are owed a refund or will owe when you file.
Avoid large tax refund loans to the IRS and prevent penalties by dialing in your exact paycheck withholding.
Check whether your paycheck withholding will cover your tax bill or leave you owing in April.
Tax Calculator FAQs
Straight answers to the questions people ask most about tax calculators.
Will I owe a penalty if I skip quarterly estimated tax payments?
Possibly. If you expect to owe $1,000 or more in tax after withholding and credits, the IRS generally requires quarterly estimated payments, and underpaying can trigger penalties plus interest. The Quarterly Tax Calculator sizes each payment; the usual safe harbors are paying at least 90% of the current year’s tax or 100% of last year’s tax (110% at higher incomes).
What is the difference between a tax credit and a tax deduction?
A deduction reduces the income you are taxed on; a credit reduces the tax itself, dollar for dollar. That makes credits far more powerful: a $2,000 credit cuts your bill by $2,000, while a $2,000 deduction only saves you $2,000 times your marginal rate. The Child Tax Credit & EITC calculator shows credits in action.
Should I adjust my W-4 withholding?
If you owed a large balance or received a huge refund last April, yes — your withholding is miscalibrated. A big refund means you gave the IRS an interest-free loan; a big bill means possible underpayment penalties. The W-4 Withholding Calculator helps you tune it so each paycheck lands closer to your true liability.
How are work bonuses taxed?
Bonuses are supplemental wages: employers typically withhold a flat 22% for federal tax on bonuses under $1 million. That is just withholding, not your final tax — the bonus ultimately gets taxed at your marginal rate when you file, so you may owe more or get some back. The Bonus Tax Calculator previews the take-home.
How much should a freelancer set aside for taxes?
A common rule of thumb is 25–30% of net profit in a separate account, but the right number depends on your bracket, state, and deductions. Run the Freelance 1099 Tax Estimator for your situation, then use the Quarterly Tax Calculator to schedule payments so April never ambushes you.
Can these tax calculators replace a CPA?
No. They are excellent for estimates, scenario planning, and catching withholding problems early, but they are not professional tax advice. For audits, business structure changes, equity compensation, or anything involving large sums, work with a licensed CPA or tax attorney.