Summarize a level or annually increasing annuity income schedule in after-tax dollars. The calculator shows total net income, first-year income, the final modeled monthly payment, and estimated taxes over the selected horizon. It helps organize a long stream of payments into comparable figures while keeping the cost-of-living adjustment and taxable share explicit. Contract timing, exclusions, and actual withholding can differ from this annualized model.
Payment in year n = starting payment × (1 + annual increase)n − 1
After-tax annual income = monthly payment × 12 × [1 − (taxable share × tax 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.
A $2,500 starting monthly payment with a 2% annual increase for 20 years, 75% taxable at 24%, produces estimated total after-tax income of about $597,715.
The model applies the entered increase once at the start of each new schedule year.
No. It estimates annual tax from the taxable share and marginal rate.
Yes. Enter 0% for the annual payment increase.
No. The schedule reports nominal dollars; the increase is a contractual payment growth assumption.
No. It continues for the full number of years entered.
| Period | Payment rule |
|---|---|
| Year 1 | Starting monthly payment |
| Later years | Prior payment × (1 + annual increase) |
| Tax estimate | Taxable share × marginal rate |