Rule 72(t) Explained: How to Tap Retirement Accounts Early Without the 10% Penalty

Most people know that pulling money out of an IRA or 401(k) before age 59½ usually triggers a 10% early-withdrawal penalty on top of ordinary income tax. Fewer know that the tax code carves out a formal exception for retirees, early retirees, and career changers who need income before that threshold: Internal Revenue Code Section 72(t)(2)(A)(iv), commonly known as the substantially equal periodic payment (SEPP) rule.

SEPP plans are used by people who retire early, take a career break, or otherwise need to draw down tax-deferred retirement savings ahead of schedule. The concept is straightforward in principle: if you commit to taking a fixed, IRS-approved series of withdrawals, the 10% penalty is waived on those withdrawals. In practice, the rules are technical, and errors can be expensive.

What Counts as 'Substantially Equal'

The IRS does not require identical dollar amounts every year forever, but it does require the withdrawal stream to follow one of three approved calculation methods, each described in IRS guidance including Revenue Ruling 2002-62:

• Required Minimum Distribution (RMD) method: The account balance is divided by a life-expectancy factor each year, so payments can fluctuate annually as the balance and factor change.
• Fixed Amortization method: The account balance is amortized over a life-expectancy factor using a chosen interest rate, producing a level annual payment.
• Fixed Annuitization method: The balance is divided by an annuity factor derived from IRS mortality tables and a chosen interest rate, also producing a level payment.

The amortization and annuitization methods generally produce larger annual payments than the RMD method because they spread the balance more aggressively, but once you pick a method (other than a one-time allowed switch to the RMD method), you are generally locked in for the plan's duration.

The Interest Rate Matters

For the amortization and annuitization methods, taxpayers select an interest rate that cannot exceed the greater of 5% or 120% of the federal mid-term rate published monthly by the IRS for either of the two months before the start of the SEPP series. This rate is fixed at plan inception and affects the payment amount for the life of the plan.

How Long a SEPP Plan Must Run

This is the rule that trips people up. Once started, a SEPP series must continue for the longer of five years or until the account owner reaches age 59½. Someone who starts a plan at age 45 must keep taking the scheduled payments for roughly 14-plus years, not just five, because 59½ is later than the five-year mark. Someone who starts at 57 must continue for five full years, past age 59½, because five years is the longer period in that case.

What Happens If You Modify the Plan Early

Modifying the payment schedule before the required period ends — by taking more, less, or skipping a payment, or by adding funds to the account outside specific rollovers — is treated by the IRS as a disqualifying modification. The consequence is retroactive: the 10% penalty applies to every distribution already taken under the plan, back to the first payment, plus applicable interest on the penalty amount, as if the exception never applied. Limited exceptions exist, including for death or disability of the account owner, or a one-time permitted switch from the amortization or annuitization method to the RMD method.

Which Accounts Can Use It

SEPP plans can be set up from IRAs at any time, since IRAs have no separation-from-service requirement. For employer-sponsored plans such as 401(k)s, the SEPP exception under Section 72(t) generally applies only after the participant has separated from service with the employer sponsoring the plan; check plan-specific distribution options with the plan administrator, since not all plans permit periodic payment structures.

Practical Considerations

• Splitting an IRA into multiple accounts before starting a SEPP plan can allow you to apply the 72(t) exception to only part of your savings, leaving the rest flexible for emergencies without risking disqualification of the whole plan.
• Because the payment schedule is inflexible for years, financial professionals and IRS guidance both caution against using SEPP as a first resort; it works best when other liquid savings, brokerage accounts, or income sources are insufficient to bridge the gap to 59½.
• Payments under a SEPP plan are still subject to ordinary federal and state income tax; only the 10% early-withdrawal penalty is waived.
• Recalculating or estimating payments requires care since even small computational errors can be treated by the IRS as a disqualifying modification.