Financial calculators with visible assumptions.
Explore practical tools built from dated, traceable inputs. Each calculator explains what it includes, what it leaves out, and where its source data comes from.
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Federal Income Tax Calculator
Estimate 2026 federal income tax, employee FICA, retirement-contribution effects, and take-home pay using dated IRS parameters.
Open calculatorRetirement Calculator
Explore retirement savings, a spending-based funding target, required monthly saving, and portfolio longevity using transparent assumptions.
Open calculatorCompound Interest Calculator
Project how an initial balance and recurring contributions could compound under editable return, fee, inflation, and contribution-growth assumptions.
Open calculatorFIRE Calculator
Estimate a financial-independence target and timeline from spending, other income, savings, contributions, inflation, and return assumptions.
Open calculatorDividend Income Calculator
Estimate annual and monthly distributions, the investment required for an income target, and an optional reinvestment scenario.
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