Plan retirement, taxable portfolios, and withdrawals. Estimate after-tax growth, future value, and inflation impact.
Our investment calculator with withdrawals and taxes compounds your starting balance and monthly contributions annually (daily compound approximated). Each year, we apply your annual return, then subtract withdrawal amount (annual or monthly) and calculate tax on realized gains. Inflation adjusts final purchasing power. This gives you a realistic after tax investment calculator for retirement or portfolio planning.
Starting $100,000 | $600 monthly add | 7% annual return | $14,000 yearly withdrawal | 15% tax | 2.5% inflation over 20 years → After-tax final balance ≈ $198,400 (inflation-adjusted ≈ $121,000). This portfolio withdrawal calculator shows how taxes and withdrawals impact longevity. Adjust sliders to match your strategy.
| Year | Start Balance | Contributions | Growth (Pre-Tax) | Withdrawal | Tax Paid | End Balance |
|---|---|---|---|---|---|---|
| Adjust inputs to see projection | ||||||
| Scenario | Final Value (After 20 yrs) | Total Tax Paid |
|---|---|---|
| No Tax, No Withdrawal | - | - |
| With Tax (no withdrawal) | - | - |
| With Tax + Withdrawals (your plan) | - | - |