Rule of 55 Calculator
If you leave your job in or after the calendar year you turn 55, you can take money out of that employer’s 401(k) without the 10% early-withdrawal penalty. Here is what that money supports — and the one rollover that destroys the exemption.
How the rule works
- You must separate from service — quit, be laid off, or retire — in or after the calendar year you turn 55. Leaving at 54 and waiting until 55 does not qualify.
- It applies only to the plan of the employer you just left. Old 401(k)s from previous jobs are not covered.
- Withdrawals are still taxed as ordinary income. The rule waives the 10% penalty, not the tax.
- Public-safety employees — police, firefighters, EMS — can use age 50, or 25 years of service, under a parallel provision.
- The plan must permit partial withdrawals. Some plans only allow a full lump sum, which would be a tax disaster. Check the summary plan description before you resign.
The mistake that voids it
Do not roll that 401(k) into an IRA. The rule of 55 is a 401(k) provision; IRAs do not have it. Once the money is in an IRA the 10% penalty applies until 59½, and the only escape is a 72(t) schedule that locks you in for five years. Every rollover-happy piece of advice about "consolidating your accounts" is wrong for a 55-year-old who needs this money before 59½.
The workable order is: leave the current-employer 401(k) where it is, live on it from 55 to 59½, and roll it over afterwards when the exemption no longer matters.
How the calculator works
Each month the balance earns one month of return, then the withdrawal is taken out. Every 12 months the withdrawal is increased by the inflation rate so your spending power stays level. If you enter a tax rate, each withdrawal is grossed up so the after-tax amount you keep matches the number you typed. The calculator stops when the balance hits zero, or after 100 years if it never does.
The "to last 20 / 25 / 30 years" figures are solved by bisection: the largest starting withdrawal that still survives that horizon under the same return and inflation assumptions.
Bridging 55 to 59½
You need roughly four and a half years of spending from that one plan. If the balance in it is too small, the alternatives are a 72(t) series from an IRA, taxable brokerage money, or Roth contributions — which can always be withdrawn tax and penalty free. Combining sources usually beats forcing one to carry everything.
Tax planning while you use it
These are low-income years — no salary, no Social Security, no required distributions. Withdraw enough to fill the lower tax brackets rather than the bare minimum, and consider Roth conversions on top. The alternative is leaving those brackets unused and paying more later when Social Security and required distributions arrive together.
Choosing realistic inputs
- Annual return. 4–5% is a conservative planning number for a balanced portfolio; 6–7% is closer to long-run history for 60/40; cash and CDs are 3–5% today but fall when rates fall.
- Inflation. The Federal Reserve targets 2%; the 30-year U.S. average is about 2.5%. Healthcare inflation runs higher, so retirees with large medical costs should test 3–3.5%.
- Withdrawal. Use what you actually spend, minus guaranteed income (Social Security, pension, annuity). That net gap is what savings must cover.
Frequently asked questions
What is the rule of 55?
An IRS provision that waives the 10% early-withdrawal penalty on distributions from the 401(k) or 403(b) of the employer you leave, if you separate from service in or after the calendar year you turn 55. Income tax still applies.
Does the rule of 55 apply to IRAs?
No. It is a workplace-plan provision only. Rolling a qualifying 401(k) into an IRA permanently forfeits the exemption for that money, which is the single most expensive mistake people make with this rule.
Can I use the rule of 55 and then go back to work?
Yes. The exemption depends on having separated from service at 55 or later, not on staying unemployed. Returning to work does not claw back withdrawals already taken, though a new employer plan will not be covered.
What if I have several old 401(k)s?
Only the plan of the employer you just left qualifies. Some plans accept incoming rollovers, so consolidating older 401(k)s into the current employer plan before you resign can bring more money under the exemption. Do it before separating, not after.
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SavingsLast calculators are educational estimates. They assume a constant average return and steady inflation; real markets are volatile and sequence-of-returns risk can shorten how long money lasts. Nothing here is financial, investment, tax, or legal advice. Consult a qualified professional before making decisions.