Why Interest Rates Matter in 72(t) Planning
When setting up a 72(t) SEPP plan, one of the most consequential decisions you will make is choosing your interest rate. Unlike the RMD method (which does not use an interest rate), both the Fixed Amortization and Fixed Annuitization methods require you to select a rate — and that rate directly determines how much income you receive each year.
As a dedicated 72t advisor, Spivak Financial Group helps clients understand this critical decision and choose the rate that best balances income needs with long-term account sustainability.
The IRS Interest Rate Rules
The IRS does not allow you to use any arbitrary interest rate. Under IRS Revenue Ruling 2002-62, the rate you use must be no more than 120% of the federal mid-term rate (AFR) for either of the two months immediately preceding the month in which distributions begin.
The federal mid-term rate is published monthly by the IRS in Revenue Rulings. As of early 2026, the mid-term rate has been in the 4–5% range, meaning the maximum allowable 72(t) rate is approximately 4.8–6.0%.
How the Rate Affects Your Distribution Amount
The relationship between the interest rate and your distribution amount is direct: a higher rate produces a larger distribution. Here is an example using a 50-year-old with a $500,000 IRA using the Fixed Amortization method:
- 3.0% rate: Approximately $22,800/year ($1,900/month)
- 4.0% rate: Approximately $25,600/year ($2,133/month)
- 4.5% rate: Approximately $27,100/year ($2,258/month)
- 5.0% rate: Approximately $28,600/year ($2,383/month)
- 5.5% rate: Approximately $30,200/year ($2,517/month)
As you can see, the difference between a 3% and 5.5% rate is approximately $7,400 per year — a significant amount. This is why choosing the right rate is so important, and why working with a qualified SEPP advisor is essential.
The Trade-Off: Higher Income vs. Account Longevity
While a higher interest rate produces more income, it also depletes your account faster. If you use a high rate and your account's actual investment returns are lower than expected, you risk running out of money before your plan ends — or before you have built up sufficient savings in other accounts.
The optimal rate balances your income needs against your account's expected long-term growth rate. A 72t planner near you will model multiple rate scenarios to help you find the right balance.
People Also Ask: Interest Rate Questions
What is the maximum interest rate I can use for my 72(t) plan?
The maximum rate is 120% of the federal mid-term rate for either of the two months immediately preceding the month your distributions begin. Check the IRS website or consult your 72t advisor for the current applicable rates.
Should I always use the maximum allowable rate?
Not necessarily. While the maximum rate produces the highest income, it also depletes your account fastest. The right rate depends on your income needs, your account balance, your expected investment returns, and how long you need the account to last. Many clients choose a rate slightly below the maximum to provide a buffer against market volatility.
Can I change my interest rate after my plan starts?
No. Once you establish your 72(t) plan using the Fixed Amortization or Fixed Annuitization method, the interest rate is locked in for the life of the plan. You cannot change it without triggering a plan modification, which would result in retroactive penalties. This is why choosing the right rate at the outset is so critical.
What happens if interest rates rise significantly after I start my plan?
If interest rates rise significantly after you start your plan, you may find that you could have received higher distributions if you had waited. Unfortunately, there is no way to retroactively adjust your rate. However, if you used the RMD method (which does not use a fixed rate), your distributions will naturally adjust as your account balance changes.
Timing Your Plan to Maximize Your Rate
Because the IRS allows you to use the rate from either of the two months preceding your distribution start date, you have some flexibility in timing your plan to take advantage of favorable rates. If rates are rising, you may want to start your plan sooner to lock in a higher rate. If rates are falling, you might benefit from waiting.
At Spivak Financial Group, we monitor interest rate trends and help clients time their plan start date to maximize their distribution amount within IRS guidelines. Schedule your free consultation today at (844) 558-5997.