Use this pension lump sum tax impact calculator to compare retirement cash-flow assumptions without hiding the inputs. Enter your benefit, balance, timing, return, or tax scenario to see the main estimate plus supporting totals. The result is intended for planning and scenario testing; actual pension, Social Security, RMD, and tax outcomes depend on plan rules, current law, and individual circumstances.
The main result summarizes the selected retirement scenario. Supporting results show the cash-flow or tax components that drive it.
Planning estimate only. Verify benefit rules, distribution factors, taxes, and decisions with current official documents and qualified professionals.
$300,000 with 22% federal and 5% state rates produces estimated net proceeds of $219,000 and $81,000 of tax.
Use values from your current benefit statement, plan documents, account records, or a clearly labeled planning scenario.
No. Inflation or benefit adjustments are included only when a dedicated rate input appears on this page.
No. The calculator applies the rates you enter and does not model brackets, deductions, filing status, or every tax rule.
Yes, where the field allows zero. This is useful for isolating cash flow from growth or taxes.
Timing, plan rules, investment returns, benefit adjustments, tax law, and rounding can all change the actual outcome.
| Input | Purpose |
|---|---|
| Taxable lump sum | Amount treated as taxable |
| Federal marginal rate | User-supplied estimate |
| State/local rate | User-supplied estimate |
| Additional penalty | Enter 0 if none applies |