Transparent calculators for clearer financial decisions

Estimate seller fees, U.S. taxes, pay and retirement with editable assumptions and cited sources.

Seller calculatorsTax & retirement
27 free toolsNo signupCited sources

Two focused toolkits

BriskCalc maintains many useful utilities, but new research and editorial work is concentrated in the two areas below.

U.S. tax, pay & retirement

Build a planning estimate while keeping tax-year assumptions and exclusions visible.

2026 Federal Income Tax CalculatorMarginal brackets, standard or itemized deduction, payroll tax and take-home estimate.2026 Tax Refund EstimatorWithholding, deductions, verified credits and Child Tax Credit phase-out.Salary to Hourly CalculatorPaid weeks, hours, time off and equivalent pay rates.401(k) CalculatorEmployee contributions, employer match and retirement projection.
Start with a guide2026 federal tax bracketsW-4 withholding guideTake-home pay guide

Featured tools

Good starting points for common decisions

FBA profitFees, ads, returns and target margin.Tax refundWithholding, deductions and credits.CD growthForward and reverse savings estimates.

What every priority calculator includes

A result is only useful when its assumptions can be inspected and reproduced.

FormulaThe actual calculation logic in plain language.
Worked exampleNumbers users can independently reproduce.
Primary sourcesIRS, DOL, Amazon, Etsy and other responsible sources.
Change logWhat changed, when it changed and why.

All calculators

Existing utilities remain available, while new publishing stays focused on the two priority toolkits.

Editorial limitation: BriskCalc is not currently represented as CPA-, EA- or attorney-reviewed. Tax results are educational estimates and must be checked against current official instructions or a qualified professional. See who maintains the site and its review limits.

Scroll to Top