Estimate the tax impact of a series of annuity payments using a user-supplied taxable share and marginal tax rates. The calculator separates gross distributions, taxable income, estimated tax, and after-tax monthly cash flow. This is designed for scenario planning rather than return preparation: exclusion ratios, qualified versus nonqualified contracts, state rules, withholding, and changes after basis recovery can materially change actual results.
Taxable income = payment × months × taxable share
Estimated tax = taxable income × (federal rate + state/local rate)
Use the main result as a scenario estimate and compare it with alternative assumptions. Small changes in tax, return, inflation, or payment terms can compound into meaningful differences.
This is an educational estimate, not tax, investment, insurance, or legal advice. Actual taxes and contract benefits depend on jurisdiction and plan terms.
Twelve $2,500 payments total $30,000. If 75% is taxable at combined rates of 27%, estimated tax is $6,075, leaving $1,993.75 per month after tax.
It is the portion of each distribution included in taxable income for this estimate.
No. Enter the taxable share from reliable contract or tax information.
No. The calculator rejects a combined rate above 100%.
No. Withholding is a prepayment; this tool estimates tax using marginal rates.
It can model a user-entered taxable share, but actual treatment should be confirmed for the specific account and contract.
| Component | Formula |
|---|---|
| Gross payments | Monthly payment × months |
| Taxable income | Gross payments × taxable share |
| Estimated tax | Taxable income × combined rate |