Tax & Payroll
Income tax, payroll and country-specific tax rules.
41 tools · 4 sub-topics
us federal 2026
Federal Income Tax Bracket Calculator (2026)
See how the 2026 US federal brackets tax your income slice by slice, with your marginal and effective rates.
Standard vs Itemized Deduction Calculator (2026)
Compare your itemized deductions — with the SALT cap and medical floor applied — against the standard deduction.
FICA Tax Withholding Calculator (2026)
Work out the Social Security and Medicare tax withheld from your wages, including the wage-base cap.
Additional Medicare Tax Calculator (Form 8959)
Estimate the extra 0.9% Medicare tax on wages and self-employment income above the statutory threshold.
Net Investment Income Tax Calculator (Form 8960)
Estimate the 3.8% NIIT on investment income when your modified AGI is above the threshold.
Long-Term Capital Gains Tax Calculator (2026)
Apply the 2026 0%, 15% and 20% long-term capital gains rates, stacked on top of your ordinary income.
Short-Term Capital Gains Tax Calculator (2026)
Short-term gains are taxed as ordinary income — see the extra tax a gain adds on top of your other income.
Earned Income Tax Credit (EITC) Calculator (2026)
Estimate your 2026 EITC from earned income, AGI, filing status and number of qualifying children.
Child Tax Credit & Phase-out Calculator (2026)
Estimate your 2026 Child Tax Credit and Credit for Other Dependents after the income phase-out.
Alternative Minimum Tax Calculator (2026, Form 6251)
Estimate whether you owe AMT by comparing tentative minimum tax with your regular tax.
Section 179 Expensing Calculator (2026)
Work out how much qualifying equipment you can expense immediately under Section 179.
Kiddie Tax Calculator (2026, Form 8615)
Estimate how much of a child's unearned income is taxed at the parent's rate.
Federal Estate & Gift Tax Unified Credit Calculator (2026)
Estimate federal estate tax after the 2026 basic exclusion and lifetime taxable gifts.
Annual Gift Tax Exclusion Calculator (2026)
Find out how much of your gifts fall under the annual exclusion and how much uses lifetime exemption.
FICA Tip Credit Calculator (Form 8846)
Estimate the employer credit for Social Security and Medicare taxes paid on employees' tips.
Adoption Tax Credit Calculator (2026, Form 8839)
Estimate your adoption credit after the income phase-out, including the refundable portion.
American Opportunity Tax Credit (AOTC) Calculator
Estimate the AOTC for a student's first four years of college, including the refundable 40%.
Lifetime Learning Credit (LLC) Calculator
Estimate the non-refundable Lifetime Learning Credit for tuition at any stage of life.
us retirement 2026
401(k) Employer Match Optimizer (2026)
Find the contribution rate that captures your full employer match within the 2026 IRS limit.
Traditional IRA Deduction Calculator (2026)
Find how much of your 2026 traditional IRA contribution is deductible if you or your spouse has a workplace plan.
Roth IRA Contribution Limit & Phase-out Calculator (2026)
See how much you can contribute to a Roth IRA in 2026 based on income and filing status.
401(k) Early Withdrawal Penalty Calculator (IRC §72(t))
See how much of an early 401(k) withdrawal you keep after income tax, state tax and the 10% penalty.
Roth IRA 5-Year Rule & Distribution Ordering Checker
See which part of a Roth IRA withdrawal is contributions, conversions or earnings — and what is taxed or penalised.
Health FSA Contribution & Use-It-or-Lose-It Calculator (2026)
Size your 2026 health FSA election: tax saved versus money at risk if you don't spend it.
SEP IRA Contribution Limit Calculator (2026)
Find the maximum 2026 SEP IRA contribution for a self-employed owner or an employee paid on W-2.
Solo 401(k) Contribution Calculator (2026)
Combine employee deferrals and employer profit-sharing to find your 2026 Solo 401(k) maximum.
us social security
us state tax
California Income Tax Calculator (Form 540, 2025)
Estimate California personal income tax with the FTB rate schedules and the 1% Mental Health Services Tax.
California SDI Withholding Calculator (2026)
Work out State Disability Insurance withheld from California wages — no wage ceiling since 2024.
New York City Resident Income Tax Calculator (2025)
Estimate NYC resident personal income tax using the official 3.078%–3.876% rate schedule.
Multi-State Resident Tax Credit Calculator
Estimate your home-state credit for income tax paid to another state on the same income.
SALT Deduction Cap Calculator (2026)
Find your 2026 state-and-local-tax deduction limit after the income phase-down, and how much SALT you lose.
Pass-Through Entity Tax (PTET) Savings Calculator
Estimate the federal tax saved by electing your state's pass-through entity tax.
Economic Nexus Threshold Checker (Wayfair)
Check whether your remote sales into a state cross its economic nexus threshold for sales tax.
Pennsylvania Flat Income Tax Calculator
Pennsylvania taxes income at a flat 3.07% with no standard deduction — see your state tax.
Massachusetts 4% Surtax (Millionaires Tax) Calculator (2026)
Estimate Massachusetts income tax including the 4% surtax above the 2026 threshold.
Washington State Capital Gains Tax Calculator
Estimate Washington's excise tax on long-term capital gains: 7%, plus 2.9% above $1 million.
Texas Franchise (Margin) Tax Calculator (2026 report)
Estimate Texas franchise tax with the lowest of the four margin methods and the 2026 no-tax-due threshold.
State Unemployment Tax (SUTA) Calculator
Estimate an employer's state unemployment tax and federal FUTA using your assigned rate and wage base.
Florida Reemployment Assistance Tax Calculator
Estimate Florida reemployment (unemployment) tax on the first $7,000 of each employee's wages.