For workers who want to retire before age 59½, the 10% early-withdrawal penalty on IRA distributions can feel like a wall. Internal Revenue Code section 72(t) carves out a door through that wall — Substantially Equal Periodic Payments, or SEPP. Used correctly, the rule unlocks penalty-free IRA access years before traditional retirement age. Used carelessly, it can trigger retroactive penalties that wipe out the benefit.
How SEPP Works
Rule 72(t) allows you to begin taking a series of fixed annual withdrawals from a traditional IRA without the 10% penalty that normally applies before age 59½. Income tax is still owed on each distribution, but the penalty is waived as long as the payment schedule is followed precisely.
The catch is duration. Payments must continue for at least five years or until you reach age 59½ — whichever is longer. A worker starting SEPP at 50 is locked in until 59½. A worker starting at 57 is locked in until 62. Once you start, the amount cannot be modified.
The Three Calculation Methods
IRS Notice 2022-6 specifies three approved methods for calculating the annual SEPP amount:
- Required Minimum Distribution method — divides the account balance by a life expectancy factor each year. Produces the smallest payment but recalculates annually as the balance changes.
- Amortization method — fixed annual payment that amortizes the account balance over the owner's life expectancy at a reasonable interest rate.
- Annuitization method — fixed annual payment derived from an annuity factor based on life expectancy and interest assumptions.
The amortization and annuitization methods produce larger, level payments. The RMD method produces smaller payments that fluctuate with the account value.
The 2026 Interest Rate Window
For the amortization and annuitization methods, the interest rate you choose is critical. Under current IRS guidance, the rate can be any rate up to 5% per year, or up to 120% of the federal mid-term Applicable Federal Rate (AFR) for either of the two months immediately before the SEPP start date. As of May 2026, 120% of the federal mid-term AFR was approximately 4.5%, meaning the 5% floor is currently the more favorable choice for retirees seeking larger payments.
Why Discipline Matters
If a SEPP plan is modified before the required period ends — by changing the payment amount, taking an extra withdrawal, or rolling over the account — the 10% penalty is reinstated retroactively on every distribution taken under the plan, plus interest. That risk makes SEPP a strategy for retirees who can commit to the schedule without exception.
Practical Takeaways
- Split the IRA first. Many retirees create a separate IRA sized to produce the desired SEPP payment, leaving other retirement funds untouched and outside the 72(t) lock-in.
- Choose the method to match the goal. RMD method for flexibility, amortization or annuitization for predictable income.
- Lock the rate when it favors you. With AFR rates lower than the 5% statutory ceiling in mid-2026, using 5% can meaningfully increase allowed payments.
- Coordinate with other income. SEPP distributions count as ordinary income and may affect tax brackets, Medicare premiums (IRMAA), and ACA subsidies.
SEPP is a powerful but inflexible tool. It works best as part of a written early-retirement plan that accounts for the full lock-in period, not as a reaction to short-term cash needs.
Sources: IRS Notice 2022-6, Cheiron, Wikipedia, Wealthvieu

