72(t) SEPP Withdrawal Calculator

The amortization method treats your balance like a loan you repay to yourself over your life expectancy at your chosen interest rate. The RMD method divides each year's balance by that year's life-expectancy factor — smaller payments, but they adjust with markets, making a busted plan less likely. A one-time switch from amortization/annuitization to the RMD method is permitted without breaking the plan — the standard escape hatch if markets fall.

Amortization formula

Annual payment = Balance × r ÷ (1 − (1 + r)^(−LE))

r  = chosen interest rate (≤ the IRS cap)
LE = single life expectancy from the IRS table

IRS rate cap (Notice 2022-6): the greater of 5%
or 120% of the federal mid-term rate.

Notice 2022-6 fixed SEPP's historical weakness: when the old cap (120% of mid-term rate alone) sat below 2%, payments were tiny. The 5% floor roughly doubled available payments and made SEPP practical again for early retirees.

Worked example

1. Age 50, $500,000 IRA, 5% rate. Single life expectancy at 50 ≈ 36.2 years.
2. Amortization: 500,000 × 0.05 ÷ (1 − 1.05^−36.2) ≈ $30,150/year (~$2,513/month).
3. RMD method, year one: 500,000 ÷ 36.2 ≈ $13,812 — under half the amortization payment.
4. Both continue until 59½ (9.5 years — longer than 5 years, so age governs).
5. The same $500,000 at age 55 supports ≈ $32,650 via amortization — payments rise with age as life expectancy falls.

The 'later of 5 years or 59½' clock

Payments must continue, unmodified, for five full years from the first distribution or until age 59½ — whichever comes later. Start at 58 and you're locked until 63. Start at 45 and you're locked for 14½ years. The younger you start, the more the flexibility cost matters relative to the penalty saved.

What counts as busting the plan

• Taking more or less than the scheduled payment in any year (except the one-time switch to RMD).
• Adding money to the SEPP account (contributions or rollovers in).
• Rolling any part of the account out, or taking a non-SEPP distribution from it.
• Letting a advisor 'rebalance' across accounts in ways that move money into or out of the SEPP IRA.

Consequences of a bust

The recapture tax applies the 10% penalty retroactively to every pre-59½ distribution taken under the plan, plus interest. A plan paying $30,000/year busted in year six owes penalty and interest on $180,000 of distributions — roughly $18,000+ — for what may have been a single mistaken withdrawal. Ordinary income tax was always due; the bust adds the penalty layer.

1. Enter the balance of the account (or split-off account) that will fund the SEPP.
2. Enter your age and an interest rate up to the cap — 5% unless 120% of the current federal mid-term rate is higher (check irs.gov's rate tables).
3. Compare the amortization and RMD payments; work out whether the income you need matches one of them.
4. If the amortization payment overshoots your need, split the IRA and run SEPP on a smaller balance instead of taking excess income.
5. Document everything: method, rate, life-expectancy table, balance date. Your custodian codes distributions, but the burden of proving a valid SEPP is yours.

Alternatives to check first

• Rule of 55: separate from your employer at 55+ and that employer's 401(k) allows penalty-free withdrawals — simpler and more flexible than SEPP.
• Roth contribution basis: your direct Roth IRA contributions withdraw tax- and penalty-free anytime.
• Taxable brokerage assets: no penalty regime at all; often the right bridge to 59½.
• Roth conversion ladder: convert annually, wait five years per conversion, withdraw penalty-free — needs a five-year runway but preserves flexibility.
• Specific exceptions: disability, high medical expenses, higher education (IRA), first home ($10K, IRA), birth/adoption, and others may fit your case without SEPP's lock-in.