72(t) SEPP Calculator
Calculate penalty-free early distributions from your IRA or 401(k) using all three IRS-approved methods. See which method covers your spending needs and what the modification risk looks like.
Compare 72(t) against your taxable bridge and Roth ladder
Rule 72(t) locks you into fixed payments for 5+ years. Before committing, model whether a taxable brokerage bridge or Roth conversion ladder could cover the same gap with more flexibility — and less modification risk.
What Is a 72(t) SEPP Distribution?
A 72(t) distribution — formally called a Substantially Equal Periodic Payment (SEPP) — is an IRS provision that allows you to take penalty-free withdrawals from your IRA or 401(k) before age 59½. Under normal circumstances, early withdrawals trigger a 10% additional tax on top of ordinary income tax. The 72(t) exception eliminates that 10% penalty.
To qualify, you must take substantially equal periodic payments calculated using one of three IRS-approved methods. Payments must continue for the longer of five years or until you reach age 59½ — whichever is later. If you start at age 52, you must continue until age 57 (five years), which is before 59½, so you must continue until 59½. If you start at age 56, you must continue until age 61 (five years past 59½).
The critical risk: if you modify or stop payments before the schedule ends, the IRS retroactively applies the 10% penalty to every prior withdrawal, plus interest. This is called the modification trap and it's the most common reason 72(t) plans fail.
The Three IRS-Approved Methods
Fixed Amortization — The most commonly used method. Calculates a fixed annual payment based on your account balance, life expectancy, and an IRS-approved interest rate. Payments stay the same every year. Best for predictable income planning.
Fixed Annuitization — Similar to amortization but uses an annuity factor from IRS tables instead of a direct amortization formula. Often produces a payment very close to the amortization method. Also fixed each year.
Required Minimum Distribution (RMD) Method — Divides your account balance by your life expectancy each year. Produces the lowest payment of the three methods and recalculates annually as your balance changes. The most flexible after the SEPP starts because the payment varies — but you still cannot stop or modify the schedule.
When Does 72(t) Make Sense?
Rule 72(t) is a bridge tool of last resort — not a first choice. Consider it only after exhausting more flexible options: taxable brokerage accounts, Roth contribution withdrawals, and Rule of 55 (if you left your employer at 55 or older).
It makes the most sense when: most of your retirement savings are in an IRA or 401(k), you have no taxable brokerage to draw from, you don't qualify for Rule of 55, and your spending needs are stable enough to commit to a fixed payment schedule for 5+ years.
See the complete Rule 72(t) SEPP guide for a full breakdown of when to use it, how to set it up, and the most common mistakes to avoid.
Frequently Asked Questions
What interest rate should I use for the 72(t) calculation?
The IRS sets a maximum allowed interest rate each month — generally 120% of the federal mid-term rate. You can use any rate up to the maximum. A higher rate produces a larger payment. Check the current IRS maximum rate before finalizing your calculation.
Can I use 72(t) on a 401(k) or only an IRA?
You can use 72(t) on any qualified retirement account including IRAs, 401(k)s, 403(b)s, and SEP-IRAs. However, most people roll a 401(k) into an IRA first for more control over which balance to apply the SEPP to, since the rule applies to one account at a time.
What happens if I miss a payment?
Missing a payment or taking the wrong amount counts as a modification. The IRS would retroactively apply the 10% penalty to all prior withdrawals plus interest. Work with a CPA to set up automatic distributions so this does not happen accidentally.
Can I do 72(t) on just part of my IRA?
Yes. You can split your IRA into two accounts — apply SEPP to one account and leave the other untouched. This is called IRA segmentation and is a common strategy to get only the income you need while preserving the rest for later.
Is 72(t) income taxable?
Yes. SEPP distributions avoid the 10% early withdrawal penalty but are still subject to ordinary income tax. Plan for estimated quarterly tax payments if you do not have withholding set up on the distributions.
How does 72(t) compare to Rule of 55?
Rule of 55 is simpler — no fixed payment schedule, no modification risk, and no IRS approval process. But it only works if you left your employer in the year you turned 55 or later, and only applies to that employer's 401(k). If you retired earlier or rolled your 401(k) into an IRA, Rule of 55 does not apply. See the bridge strategy calculator to compare both options.