Estimate the District of Columbia effective income-tax rate on taxable income.
A simplified District of Columbia effective-rate estimate using an approximate reference rate. This is illustrative — real brackets, deductions and credits change the result.
Effective
Effective = state tax ÷ income
Approximate reference estimate — not a tax filing calculation.
Yes — District of Columbia has a state wage income tax (approximate rate here).
Rates are approximate state or national reference values. Local rates, exemptions and rules can differ, so treat the output as a planning figure only.