What Is Rule 72(t)?
Rule 72(t) — also called SEPP (Substantially Equal Periodic Payments) — is an IRS provision under Section 72(t) of the Internal Revenue Code that allows penalty-free early withdrawals from a 401(k) or IRA before age 59½. Instead of paying the standard 10% additional tax on early distributions, you commit to a series of substantially equal periodic payments calculated under an accepted SEPP method. IRS Notice 2022-6 describes three commonly used methods: fixed amortization, fixed annuitization, and the RMD method.
The core rules:
- Applies to traditional IRAs and certain employer retirement plans. For employer plans such as a 401(k) or 403(b), the SEPP exception generally requires the payments to begin after separation from service with the employer maintaining the plan
- Payments must continue for the longer of 5 years or until age 59½
- The SEPP exception removes the 10% additional tax when the rules are satisfied, but it does not make distributions tax-free; the taxable portion is still included in income
- A prohibited modification before the required period ends can trigger current-year additional tax plus recapture of prior 10% additional taxes that would have applied, with interest
Use the calculator below to compare the three methods described in IRS Notice 2022-6. For a dedicated planning view, open the Rule 72(t) SEPP Calculator.
Every early retiree eventually confronts the same problem: your largest pool of wealth is locked in a 401(k) behind a 10% penalty gate until age 59½. The bridge strategy solves this for most people by drawing from taxable accounts first. But what if your taxable account isn't large enough to cover the full bridge?
That's where Rule 72(t) comes in. It's not a first choice. It's not flexible. But for the right situation, it solves a problem that has no other penalty-free solution.
How the 72(t) Rule Works
The 72(t) rule works by committing you to an annual distribution amount determined under your chosen SEPP method. Fixed amortization and fixed annuitization use a permitted interest rate; the RMD method is recalculated annually and does not use the same fixed-method interest-rate input. Once you start:
- You determine the annual amount under your chosen SEPP method
- For the fixed methods, the annual dollar amount generally stays level; under the RMD method, it is recalculated each year
- You may take the required annual amount in annual, quarterly, or monthly installments, subject to custodian or plan rules, but the total for the year must match the required annual amount
- You continue until the later of the fifth anniversary of the first SEPP payment or the date you reach age 59½
- After the required period ends, the SEPP restriction no longer applies to that account
The Three SEPP Calculation Methods
IRS Notice 2022-6 describes three methods that are commonly used to determine SEPP annual amounts. Each produces a different result, and your initial method choice matters because later changes are tightly restricted. You can compare them side by side with the 72(t) SEPP calculator.
Fixed Amortization (Most Popular) — Amortizes your account balance over a permitted life-expectancy period using a permitted interest rate. Produces a fixed annual payment that stays constant throughout the SEPP period. Typically the highest of the three methods. Best for early retirees who need predictable, planning-friendly income.
Fixed Annuitization — Uses an annuity factor based on IRS mortality assumptions and a permitted interest rate. Also produces fixed annual payments, similar in size to amortization. Worth computing both — the calculator above does this automatically — to see which is slightly higher for your situation.
RMD Method — Divides your current account balance by an IRS life expectancy factor each year. Unlike the other two methods, the RMD method produces variable payments recalculated annually. Produces the lowest payment and adjusts annually with the account balance, but the SEPP series must still follow IRS duration and modification rules — you cannot freely alter or stop payments without triggering penalties.
Worked Example: Age 52 With $600,000 IRA
Here's a concrete example of how Rule 72(t) works in practice.
Setup: Sarah, age 52, has $600,000 in a traditional IRA. She plans to retire now and needs supplemental income through the bridge years. Because she starts SEPP at 52, she must generally continue payments until age 59½ — since that is later than the fifth anniversary of her first payment. For illustration, assume she selects a 4.5% interest rate for a fixed-method calculation. Under Notice 2022-6, the selected rate for fixed amortization or fixed annuitization cannot exceed the greater of 5% or 120% of the federal mid-term rate for either of the two months immediately preceding the month the SEPP begins. A 4.5% rate is therefore an illustrative permitted assumption here, not a statement of the current IRS maximum.
Before using a fixed-method rate in a real plan, confirm the permitted ceiling for the SEPP start month. The SEPP Calculator lets you compare the payment impact across all three methods.
Sarah chooses Fixed Amortization for the predictable $34,200/year. Combined with her taxable brokerage income, this covers her spending through the bridge years. The taxable portion of the $34,200 remains subject to ordinary income tax, but if that same taxable distribution would otherwise have been subject to the 10% additional tax, the SEPP exception avoids a $3,420 additional tax for that year. The exact cumulative amount avoided depends on the number and timing of annual SEPP payments.
Key planning note: Sarah uses IRA segmentation — she splits her $600,000 IRA into a $350,000 SEPP account and a $250,000 untouched account. SEPP only runs on the $350,000, generating about $20,000/year, which is enough to supplement her taxable income. The $250,000 compounds freely until 59½.
72(t) for IRA vs 401(k): What's Different
The same SEPP calculation framework can be used with IRAs and eligible employer plans, but the eligibility rules are not identical. The biggest difference is employment status: an IRA SEPP does not require separation from an employer, while a SEPP from an employer plan such as a 401(k) generally must begin after separation from service with the employer maintaining that plan. The IRS SEPP guidance states this employer-plan separation requirement explicitly. Plan distribution rules also matter.
The most important warning: If assets that could qualify for the Rule of 55 are rolled from the employer plan into an IRA, the IRA does not inherit the Rule of 55 exception. The Rule of 55 only applies to the specific employer plan you separated from — once rolled into an IRA, it's gone. If you separate from service in or after the calendar year you reach 55, check whether the Rule of 55 applies before rolling that employer-plan balance to an IRA. Special earlier-age rules apply to certain qualified public safety employees and private-sector firefighters.
How Long Does 72(t) Last?
The SEPP requirement lasts for the longer of 5 years or until age 59½.
If you're close to 55, waiting can significantly reduce your commitment length. Starting at 54 generally keeps the series in place until age 59½. Starting at 55 generally makes the fifth anniversary of the first payment the later endpoint — around age 60 — and also makes it especially important to check whether the Rule of 55 applies to the employer plan you are leaving.
The Modification Trap: The Biggest Risk in 72(t)
Before starting any SEPP series, you need to fully understand the modification penalty.
If you make a prohibited modification before the required SEPP period is complete, the current-year distribution can become subject to the 10% additional tax and the IRS can also impose a recapture tax equal to the prior 10% additional taxes that would have applied if the SEPP exception had not been available, plus interest.
Example: You've taken $35,000/year for 4 years — then a financial emergency forces you to change the amount. You now owe the 10% penalty on $140,000 in prior withdrawals, plus years of accrued interest. That's $14,000-$20,000+ in retroactive penalties for a single deviation.
Notice 2022-6 allows a one-time change in calculation method from fixed amortization or fixed annuitization to the RMD method without treating that method change as a modification. IRS guidance also identifies limited other events that are not treated as modifications, so avoid treating the one-time method switch as the only possible non-modification.
Rule: Only start a 72(t) SEPP series if you're highly confident you can maintain fixed payments for the full duration. If your income needs are uncertain, exhaust alternatives first.
72(t) vs. Roth Conversion Ladder: Which Is Better?
Both Rule 72(t) and the Roth conversion ladder allow penalty-free access to retirement accounts before 59½. They solve the same problem in fundamentally different ways.
The general rule: If your taxable account can fund the full bridge to 59½, skip 72(t) entirely and use the Roth ladder for long-term tax optimization. If taxable plus Roth contributions fall short, 72(t) fills the gap immediately — no 5-year wait.
Many early retirees combine both: taxable covers years 1-5 while the first Roth ladder rung seasons, then the Roth ladder pays out in years 6+, with 72(t) filling any remaining gap in between.
When 72(t) Is a Bad Idea
Rule 72(t) gets discussed frequently but used less often than people expect — because in many real scenarios, it's the wrong tool.
Avoid 72(t) if:
Your taxable account covers the bridge. If you have enough in taxable brokerage and Roth contributions to reach 59½, SEPP's rigidity costs more than it saves. Let your 401(k) compound untouched.
Your income needs are uncertain. SEPP requires a fixed payment for 5+ years. Job loss, healthcare costs, a big purchase, or a lifestyle change that requires more or less income will trigger the modification penalty. If your life is in flux, 72(t) is dangerous.
You're 55 or older leaving a current employer. Check the Rule of 55 first. If it applies, you get penalty-free access to that specific 401(k) with no fixed payment requirement — far more flexible than SEPP.
You only need income for a short gap. If you're 57 and only need 2.5 years of bridge income, the 5-year SEPP commitment extends past your need. You'd be locked into payments you don't need after 59½.
Your ACA subsidies are at risk. Taxable SEPP distributions generally increase household MAGI used for Marketplace premium-tax-credit eligibility. For tax year 2026, the temporary 2021–2025 expansion above 400% of the federal poverty line has expired; household income above 400% FPL generally makes you ineligible for the Premium Tax Credit. That can make income planning around a SEPP especially important. Run the numbers with the ACA Subsidy Estimator before starting.
You haven't tried IRA segmentation. Many people think they need 72(t) on their full balance when they only need income from a portion. A smaller segmented SEPP on $200,000 might generate the exact income needed with far less commitment than a full-account SEPP.
🧮 Check how much bridge you actually have: The Taxable Gap Calculator shows exactly how many years your accessible assets cover — the number that determines whether 72(t) is necessary or avoidable.
The IRA Split Strategy: Preserve Flexibility
One of the most important planning moves before starting 72(t) is splitting your IRA into two separate accounts.
The IRS applies SEPP rules to individual IRA accounts — not your entire retirement portfolio. If you have $800,000 in a traditional IRA and only need $30,000/year, you can:
- Split the IRA: $350,000 for SEPP, $450,000 untouched
- Calculate and run SEPP only on the $350,000 account
- Leave the $450,000 account completely free of any SEPP restrictions
Complete any desired IRA segmentation before establishing the SEPP and document the account balances used. IRS guidance states that each SEPP is determined for a single account; multiple account balances cannot be combined into one SEPP calculation. For fixed amortization and fixed annuitization, the starting account balance must be determined in a reasonable manner based on the facts and circumstances. Once the SEPP is established, additions to the account or extra distributions from that account can create modification problems, subject to limited exceptions in current law and IRS guidance.
Tax Planning While Running SEPP
Taxable portions of traditional retirement-account SEPP distributions are generally included in ordinary income. Fixed-method SEPPs can therefore create a predictable taxable-income baseline, while RMD-method payments vary as they are recalculated annually.
- Roth conversions: Know your SEPP baseline, then fill remaining low-bracket space with Roth conversions
- ACA subsidies: Taxable SEPP income generally increases Marketplace household MAGI; for 2026, the 400% FPL upper income limit for the Premium Tax Credit is again relevant
- Capital gains: Your SEPP income affects whether long-term capital gains fall in the 0% or 15% bracket
- State taxes: Many states tax IRA withdrawals — know your state's treatment of SEPP income
A $32,000/year SEPP payment in the 12% federal bracket, combined with $20,000 in taxable brokerage income and $15,000 in Roth conversions, can result in a very low effective tax rate — well under 10% in many scenarios.
📊 Calculate your SEPP payment: See your annual payment across the three methods described in IRS Notice 2022-6 and compare penalty savings vs. unplanned early withdrawals with the SEPP Calculator.
Documenting Your 72(t) Series
The IRS doesn't require advance notice when you start SEPP — but documentation is critical protection.
Keep permanent records of:
- Account balance and valuation date used for the calculation
- Calculation method chosen
- If using a fixed method, the interest rate selected and the published federal mid-term rates used to confirm the permitted ceiling
- Life expectancy table and factor used
- Annual payment amount with full calculation shown
When Form 5329 is required to report the exception, SEPP distributions use exception code "02" in Part I under the current instructions. If your Form 1099-R reports an early distribution without recognizing the exception, review the current IRS Form 5329 page and instructions for the filing year.
Consider having a CPA or enrolled agent review the initial calculation before the first payment. IRS Notice 2022-6 provides the current post-2022 guidance for the commonly used SEPP calculation methods, permitted interest rates, and life-expectancy tables. Professional review can be inexpensive compared with the potential cost of a recapture tax.
After SEPP Ends
When your 72(t) requirement ends — at the later of 5 years or age 59½ — you are no longer bound to the fixed schedule and can adjust withdrawals normally, subject to standard tax reporting. Your account becomes a standard post-59½ retirement account: ordinary income tax on withdrawals, no penalty, full flexibility.
This is also the moment to shift to the standard post-59½ withdrawal order: drawing from 401(k) proactively to reduce future RMDs, letting Roth continue compounding, and optimizing for Social Security claiming age.
Frequently Asked Questions
What is Rule 72(t)? Rule 72(t) provides an exception to the 10% additional tax on qualifying early retirement-plan distributions made as a series of substantially equal periodic payments (SEPP). The series generally must continue until the later of the fifth anniversary of the first payment or age 59½. The exception does not make the distribution tax-free; the taxable portion is still included in income. For employer plans such as a 401(k), the SEPP exception generally requires payments to begin after separation from service.
How is the 72(t) SEPP payment calculated? Using one of three methods described in IRS Notice 2022-6: fixed amortization, fixed annuitization, or the RMD method. For the fixed methods, the selected interest rate cannot exceed the greater of 5% or 120% of the federal mid-term rate for either of the two months immediately preceding the month the SEPP begins. The RMD method is recalculated annually and does not use that fixed-method interest-rate input. The calculator above compares all three.
What is the 72(t) rule for a 401(k) vs IRA? The calculation framework is similar, but eligibility differs. An IRA SEPP does not require separation from an employer. For an employer plan such as a 401(k), the SEPP exception generally requires the payment series to begin after separation from service with the employer maintaining the plan, and plan distribution rules must allow the payments. A rollover to an IRA may provide more control, but check Rule of 55 eligibility before moving employer-plan assets.
How does 72(t) work if I break the schedule? If you make a prohibited modification before the required period ends, the current-year distribution may be subject to the 10% additional tax and a recapture tax can apply to prior SEPP years, plus interest. Notice 2022-6 permits a one-time change from a fixed method to the RMD method; IRS guidance also recognizes limited other events that are not treated as modifications.
Can I do 72(t) on just part of my IRA? Yes. You can split your IRA into two accounts and apply SEPP only to the portion you need. This is called IRA segmentation and lets you keep the majority of your balance completely unrestricted.
How does 72(t) compare to the Rule of 55? The Rule of 55 can allow penalty-free withdrawals from an employer plan after separation from service in or after the calendar year you reach age 55, subject to plan rules and special age rules for certain workers. It does not apply to IRAs. A 72(t) SEPP can be established from an IRA without an employment-separation requirement, but a SEPP from an employer plan such as a 401(k) generally must begin after separation from service. If you are leaving an employer in or after the year you reach 55, check Rule of 55 before rolling that plan to an IRA or starting SEPP.
Is 72(t) worth it if I only need income for a few years? Usually not. If the commitment length extends significantly past your income need, the rigidity cost of SEPP outweighs the penalty savings. SEPP makes the most sense when the commitment length roughly matches your actual bridge gap.
Does 72(t) affect my ACA health insurance subsidies? Taxable SEPP distributions generally increase household MAGI used for Marketplace Premium Tax Credit eligibility. For tax year 2026, household income above 400% of the federal poverty line generally makes you ineligible for the Premium Tax Credit because the temporary 2021–2025 expansion has expired. Run the ACA Subsidy Estimator with your projected SEPP income before starting.
Should 72(t) be my primary bridge strategy? Generally no. The preferred bridge order is: taxable brokerage first, then Roth contributions, then 72(t) to fill any remaining gap. If your taxable account fully covers the bridge, skip 72(t) and let your 401(k) compound untouched until 59½. See how much taxable brokerage you need before deciding.
Is SEPP the same as 72(t)? Yes. SEPP (Substantially Equal Periodic Payments) is the name of the payment structure that qualifies for the Section 72(t) penalty exception. The terms are used interchangeably.
Important: This article explains general federal tax rules and is not individualized tax, legal, or investment advice. SEPP mistakes can create significant tax consequences, so consider confirming the setup with a qualified tax professional before beginning distributions.
Official Sources and Further Reading
- IRS — Substantially Equal Periodic Payments
- IRS Notice 2022-6 — Substantially Equal Periodic Payments
- 26 U.S.C. §72 — Annuities; Certain Proceeds of Endowment and Life Insurance Contracts
- IRS Publication 575 — Pension and Annuity Income
- IRS Form 5329 — Additional Taxes on Qualified Plans (Including IRAs) and Other Tax-Favored Accounts
- IRS — Premium Tax Credit Questions and Answers
The Bottom Line
Rule 72(t) is a precise tool for one specific problem: you need retirement income before 59½ and your taxable accounts aren't large enough to cover the gap. The calculator above compares payment amounts across the three methods described in IRS Notice 2022-6 and illustrates the potential 10% additional-tax impact of non-SEPP early withdrawals.
What 72(t) SEPP is not: a first choice, a flexible strategy, or a substitute for building adequate taxable assets during accumulation. The modification penalty is real, retroactive, and unforgiving. Start only when you're certain about the payment amount and duration — and always document everything.
If your taxable account bridges the gap comfortably, skip it. Let your 401(k) compound untouched until 59½ and emerge substantially larger. If there's a genuine shortfall, 72(t) closes it legally, immediately, and cost-effectively.
🎯 Score your full plan: The Retirement Readiness Score grades your bridge across withdrawal rate, account access, healthcare, and sequence risk — and shows whether 72(t) is a gap-filler or an avoidable constraint.
Download the free Bridge Planner to model your taxable account, Roth contributions, and potential 72(t) coverage together — and see exactly which bridge years you'd need SEPP to fill.
Related: Roth Conversion Ladder for Early Retirement · Best Withdrawal Order: Taxable vs 401k vs Roth · Retirement Bridge Strategy Explained · How Much Taxable Brokerage Do You Need? · SEPP Calculator