2025 and 2026 Tax Reference Calculators
The supported calculators below cover selected 2025 and 2026 federal rules. Values you enter are processed by the calculator in your browser and are not submitted to TaxBreakTools. These estimates do not prepare a return or account for every credit, adjustment, other tax, or eligibility rule.
Content and source status reviewed August 3, 2026. Each calculator states its supported tax year and scope; use the official IRS links for fuller calculations.
Know the scope. A supported tool can illustrate one part of a return, but it cannot determine your complete tax, refund, withholding, or eligibility. Verify the tax year and result against the linked IRS form before filing or making financial decisions. See methodology.
Supported on-site calculations
Federal Income Tax Calculator
Estimate 2025 or 2026 ordinary federal income tax from filing status, income, and the base standard or an entered itemized deduction. Credits and other taxes are excluded.
Qualified Tips Deduction Calculator
Estimate the 2025 qualified-tips deduction and income phaseout from Schedule 1-A. Confirm occupation, reporting, SSN, and filing-status eligibility.
Qualified Overtime Deduction Calculator
Estimate the 2025 deduction for the FLSA-required overtime premium portion and its income phaseout. Not all overtime compensation qualifies.
Senior Tax Deduction Calculator
Estimate the 2025 Schedule 1-A enhanced senior deduction and its modified adjusted gross income phaseout. Other age-based additions are excluded.
Tax Bracket Calculator
Apply the 2025 or 2026 ordinary-income brackets to taxable income and view marginal and effective federal rates.
Self-Employment Tax Calculator
Estimate 2025 or 2026 Schedule SE Social Security and Medicare tax and the deductible employer-equivalent portion. Income tax, QBI, and payments are excluded.
SALT Deduction Calculator
Estimate the deductible 2025 state-and-local-tax amount and compare entered Schedule A deductions with the applicable base standard deduction.
Car Loan Interest Deduction Calculator
Estimate the 2025 Schedule 1-A deduction for eligible new personal-use vehicle loan interest, including the income phaseout.
Property Tax Calculator
Apply a local rate you supply to an assessed value after entered exemptions. No state average or local rate is assumed.
Official IRS resources for complex calculations
TaxBreakTools is temporarily directing refund, paycheck, W-4, quarterly estimated-tax, Child Tax Credit, capital-gains, and all-in-one OBBBA calculations to the IRS. These topics require facts and worksheets the retired site estimators did not capture reliably.
Refund and Withholding Estimator
Use the official IRS estimator for a household-level refund, balance-due, paycheck, or Form W-4 estimate.
Estimated Tax and Payment Dates
Use Form 1040-ES and Publication 505 for quarterly payments, safe-harbor rules, and current due dates.
Child Tax Credit and ACTC
Use the Schedule 8812 instructions and worksheets because usable and refundable credits depend on tax liability and household details.
Capital Gains and Losses
Use the official Schedule D instructions for basis, holding periods, loss netting, special rates, and related taxes.
2025 Schedule 1-A
Use the official form for the enacted tips, overtime, car-loan-interest, and senior deductions and their combined return treatment.
2026 Tax Planning Figures
Use the IRS announcement for official 2026 brackets, standard deductions, and other inflation-adjusted amounts.