#3362 · Finance Tool

Gift Tax Income Forecast Calculator

Forecast the spendable income and ending value produced by an invested gift. Choose a payout rate, expected return, tax rate on earnings, and forecast length to separate cash distributions from retained growth.

Calculator

Planning assumptions
$
Opening invested value.
%
Cash paid from the fund each year.
%
Change in value before withdrawals.
%
Estimated effective rate on payouts.
years
Whole forecast years.

How to use this calculator

  1. Enter the amounts and rates that match your planning assumptions.
  2. Use percentages as displayed, not decimals.
  3. Select Calculate to refresh every result.
  4. Compare the main result with the supporting totals before making a decision.

Formula

Annual net income = opening balance × payout rate × (1 − tax rate)

Each year the balance grows by the capital-growth rate after the payout is measured.

What the result means

The main result is cumulative after-tax payout income across the forecast, while the ending balance shows retained wealth.

This is a planning estimate, not tax, legal, or investment advice. Actual treatment depends on jurisdiction, trust terms, holding periods, and individual circumstances.

Example calculation

A $150,000 gift with a 4% payout, 3% annual growth, 22% tax, and a 10-year forecast produces first-year after-tax income of $4,680. Under constant rates, cumulative net income is about $53,651 and the ending fund is about $201,587.

Tips for better results

  • Separate income yield from capital appreciation.
  • Use a downside growth case as well as a base case.
  • Do not treat a forecasted return as guaranteed.
  • Model fees by reducing the growth-rate input.

Frequently asked questions

Is the payout rate the same as investment return?

No. The payout rate determines cash income, while capital growth changes the remaining fund value.

Does the forecast reinvest after-tax income?

No. It treats payout income as distributed cash rather than reinvested money.

Can capital growth be negative?

Yes. A negative rate models a declining invested balance.

Why does forecast income change each year?

Payouts are calculated from each year's opening balance, which changes with capital growth.

Are gift-tax exclusions included?

No. The tool forecasts investment income and lets you enter an income-tax rate; it does not determine gift-tax eligibility.

Inputs and units

InputApplied to
Payout rateEach year's opening balance
Income taxAnnual payout only
Capital growthInvested balance

Browse calculator categories

22 category hubs