Traditional IRA calculator
Assume all funds are pretax and contributions fully deductible; use one currency.
Formula
B=P(1+r)^n+C[(1+r)^n−1]/r; at r=0, B=P+Cn. After tax=B(1−t). Deduction savings=Cn×s.
Projected balance ≈ (10,000)×(1+(0.05)×(33.0659541))+(5,000)×(33.0659541) · After-tax withdrawal value ≈ (191,862.7476)×(1-(20)÷100) · Deduction savings, not reinvested ≈ (5,000)×(20)×(20)÷100
How to use
- Enter balance, end-year contribution and years.
- Set annual return and both tax percentages.
- Read balance, after-tax value and deduction savings.
Examples
- 1,000 + 100/year, 10%, 2 years: 1,420; with 20% withdrawal tax: 1,136.
Frequently asked questions
Are contribution limits checked?
No. Enter an eligible amount using the applicable year and your circumstances.
Are deduction savings reinvested?
No. They are a separate undiscounted total at your constant tax assumption.
Does this cover every IRA?
No. It excludes nondeductible basis, Roth IRAs, fees, inflation, penalties and required distributions.
Sources
Updated: