Most CRNAs who walk into a retirement conversation have done the hard part. They have saved consistently, built a significant pre-tax balance, and arrived at the question of retirement with real confidence. The problem is that nobody explained what comes next.
Where does the paycheck come from once you stop working? Which account do you pull from, and in what order? The questions may seem like semantics, but the answer determines how much of what you built you actually get to keep.
The IRS Is Your Silent Partner
That $2 million sitting in a pre-tax 403(b) is not entirely yours. The IRS is a silent partner, and at some point, they stop waiting for you to decide how to use the money. They decide for you.
Picture retiring at 62. Income drops, life feels lighter, and Social Security kicks in a few years later. Then, at age 73, required minimum distributions begin. The first RMD on a $2 million 403(b) is roughly $75,471. Stack that on top of $54,000 in Social Security income. At 85% taxable, $45,900 of that Social Security counts toward reportable income. All in, Janie is looking at over $121,000 in reportable income in a year she only needed $90,000. She is paying taxes on income she never planned to take.
For most CRNAs, the window between retirement and the moment the IRS takes control is about 10 to 15 years long. What happens in that window determines whether a CRNA sends the IRS $580,000 over 20 years or $410,000, keeping the $170,000 difference for herself and her family.
Janie’s Story
Janie is a CRNA, 58 years old, with $2.1 million in her 403(b), $180,000 in a Roth IRA, and $240,000 in annual income. She planned to retire at 62. When she came in, she was not worried about whether she could retire. She had one question she could not answer on her own: where does my paycheck come from once I stop working, and what account do I pull from first?
Working through Janie’s plan revealed three hidden issues. Left unaddressed, those gaps were going to cost her between $80,000 and $150,000 in taxes she did not have to pay.
Issue 1: The 4% Rule Was Never Built for Taxes
Most people have heard of the 4% rule. Take 4% from the portfolio each year, and it should last 30 years. For Janie at $2.1 million, that is $84,000 per year, or about $7,000 per month. That sounds reasonable until you realize that the number is before taxes.
The 4% rule was built from stock market data to model a portfolio’s survival. It was never designed to account for the federal tax bill that comes with every pre-tax withdrawal. At a 24% effective rate, $84,000 gross becomes $63,840 net. Janie’s lifestyle target was $144,000. Right out of the gate, the math was not even close. Not because she did not save enough. Because the rule did not account for taxes.
Issue 2: The Age 73 Collision
At age 73, the IRS steps in. The first-year RMD divisor on a $2 million account is 26.5, which produces a forced withdrawal of $75,471. Even if Janie does not need the money, she has to take it. Combined with Social Security, she is looking at over $121,000 in taxable income the very first year of required minimum distributions.
That combination pushes a married couple into the 22% federal bracket and potentially into 24%. But the bracket is not the sharpest edge. In 2026, a married couple crossing $274,000 in modified adjusted gross income triggers the first IRMAA surcharge. Cross that line by a single dollar and both spouses pay $5,840 more per year in Medicare Part B premiums. It is not a ramp. It is a cliff. And because Medicare uses a two-year look-back on tax returns, income generated today affects premiums two years from now.
Forced withdrawals, Social Security income, and a higher tax bill all stack together in the same year. That is the collision you can avoid if you plan ahead.
Issue 3: The Conversion Window Most CRNAs Waste
Between the day Janie retires and the day those forced withdrawals begin, something valuable happens. Her taxable income drops because she no longer has W-2 income and has no required distributions yet. For Janie retiring at 62 and delaying Social Security to 70, there are eight years where her only reportable income is whatever she chooses to pull from her portfolio.
For the first time in decades, she gets to choose how much taxable income she creates. This is where strategy lives.
During that window, Janie can move money out of her pre-tax 403(b) and into a Roth at tax rates she controls, instead of waiting to be forced into larger withdrawals later at higher rates on the IRS’s schedule. Think of it like measuring cups. Right now there are 12% and 22% cups available to fill. At age 73, the IRS fills them without asking which one is preferred.
Converting $75,000 at a 22% rate costs $16,500 that year. Leave that same $75,000 untouched until age 73, growing at 6% per year, and it becomes roughly $134,000. The RMD on that at a 28% rate costs approximately $37,500. Same dollars. Very different cost.
The Three-Act Retirement Paycheck
When the three issues are viewed together, they point to the same truth. The 4% rule delivers a paycheck smaller than advertised when every dollar is pre-tax. The age 73 collision forces income on top of income that was never requested. The conversion window, which is the highest-leverage tax planning period of an entire financial life, closes quietly while most CRNAs are enjoying the first years of not working. This is a sequencing problem… and the solution is what a three-act retirement paycheck is built to solve.
Act 1: The Bridge. This is early retirement, right after stopping work. The job is not growing accounts anymore. It is gaining control. Fund the monthly paycheck without touching the pre-tax 403(b) more than necessary. Draw from after-tax savings and Roth accounts for living expenses. Begin Roth conversions at lower tax rates, targeting the 22% bracket. For Janie, this was roughly $60,000 to $80,000 per year in conversions. Let Social Security grow. The smaller the 403(b) balance at age 73, the smaller the forced RMD.
Act 2: The Window. This is mid-retirement, with Medicare now in play. IRMAA becomes a factor, so tax management matters even more. Continue Roth conversions while staying below the income thresholds that trigger higher costs, including the $274,000 MAGI ceiling for married couples. Social Security arrives at age 70 at $54,000 per year. Conversions continue through the 22% to 24% brackets until the RMD date arrives on a materially smaller 403(b) balance.
Act 3: The Forced Years. This is where Acts 1 and 2 pay off. RMDs arrive on the reduced balance. The Roth, now fully funded from a decade of conversions, supplements the paycheck tax-free. Social Security at the maximized rate provides an inflation-adjusted income floor. IRMAA is managed because smaller account balances generate smaller distributions, and the tax bill is dramatically lower.
What This Meant for Janie
Without a plan, just taking withdrawals and claiming Social Security early, Janie’s projected federal tax bill over 20 years was approximately $580,000.
Under the three-act retirement paycheck, with $75,000 per year in Roth conversions from age 62 to 70 and Social Security delayed to 70, her projected 20-year tax bill dropped to approximately $410,000. That is a $170,000 difference on the same $2.1 million, with the same retirement. Just a different sequence.
By age 70, Janie’s paycheck was $4,500 per month from Social Security and $4,000 per month from her portfolio, for a total of $8,500 per month net. She stopped working at 62. She did not work longer. She did not save more. She made one shift. She stopped thinking about her accounts and started thinking about her paycheck.
Three Things to Take Away
The 4% rule understates the real tax bill by design. When every dollar in the account is pre-tax, the real paycheck is smaller than the gross math suggests until the sequence is built properly.
There is a window right after retirement where a CRNA has more control over her taxes than she ever will again. Most people waste it.
If the plan is not built, the IRS has already built one. The three-act retirement paycheck coordinates the bridge, the conversion window, and the forced income era into a single sequence worth $100,000 to $170,000 in taxes on the same $2 million portfolio.
This is the moment that determines how much of it stays yours. Ready to see how Oak Capital Advisors can help? Schedule a meeting.
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