Retirees who leave the workforce before age 59½ face a familiar wall: the 10% early withdrawal penalty on distributions from an IRA or 401(k). One of the oldest escape hatches — a series of substantially equal periodic payments under Internal Revenue Code section 72(t) — just got quietly more useful, and almost nobody noticed why.
The Rule Nobody Watches
Under IRS Notice 2022-6, issued in January 2022, a taxpayer setting up a SEPP using the fixed amortization or fixed annuitization method may use an interest rate no higher than the greater of two figures: 5%, or 120% of the federal mid-term rate for either of the two months immediately preceding the month payments begin.
That 5% floor was the headline of the 2022 guidance. Rates were near zero, and the floor let early retirees calculate far larger penalty-free payments than the market would otherwise allow. For most of the last three years, the floor has been the binding number — 120% of the mid-term rate sat below it every month from April 2025 through June 2026, bottoming out around 4.48% in January 2026.
That changed this summer. The IRS set the mid-term applicable federal rate for August 2026 at 4.35% under annual compounding, and published a section 7520 rate — which is simply 120% of the mid-term rate, rounded — of 5.20%. July 2026 was the first crossover month. For the first time in more than a year, the statutory floor is no longer the best rate available.
Why a Fifth of a Percent Matters
The practical effect is modest but real. Under the amortization method, your account balance is spread across your life expectancy at an assumed interest rate. A higher rate produces a larger annual payment. Moving from 5.0% to roughly 5.2% is not transformative on its own — but two things follow from it.
First, the two-month lookback becomes a live planning lever again. Notice 2022-6 lets you use the mid-term rate from either of the two months before payments start. When the floor was binding, that choice was meaningless; every month returned 5%. Now the months genuinely differ, and choosing the higher one is free money for anyone who needs the maximum payment.
Second, the direction of travel favors patience. If rates keep drifting up, a retiree who does not need income immediately may end up with a materially larger fixed payment by starting a SEPP later in the year.
The Trap That Ruins This Strategy
None of this helps if the plan breaks. A SEPP must run for the longer of five years or until you reach 59½ — and the payment must be taken in full each calendar year. Modify or miss it, and the 10% penalty is applied retroactively to every distribution taken before 59½, plus interest. A 52-year-old who busts a plan in year four faces a bill on all four years at once.
For that reason, many people leaving a job in their mid-50s are better served by the Rule of 55, which allows penalty-free withdrawals from the plan of the employer you just separated from, in any amount, with no multi-year commitment. The catch is one-way and unforgiving: roll that 401(k) into an IRA first and the Rule of 55 is gone permanently. It never applies to IRAs, and it never applies to former employers' plans.
Practical Takeaways
- Verify the rate for your own start month. Rates move monthly; do not rely on a calculator's cached figure.
- Compare both lookback months before locking in a fixed amortization payment.
- Check the Rule of 55 first if you separated from service at 55 or later — it is more flexible and far harder to break.
- Do not roll to an IRA until you have confirmed which exception you intend to use.
- Model the full commitment, not just year one. The rate is fixed for the life of the plan.
Both routes still leave withdrawals subject to ordinary income tax. The exceptions waive the penalty, not the tax bill.
Sources: IRS Notice 2022-6; IRS Rev. Rul. 2026-12 (August 2026 Applicable Federal Rates); Thomson Reuters Tax & Accounting; Kitces.com; Fidelity; Charles Schwab