Many nurses who are about to retire carry the same mental list of mistakes to avoid: save enough, don’t overspend, and watch the stock market. These are reasonable instincts, and for most of your nursing career, they are forgiving ones. At a CRNA salary, one bad year or one expensive season gets erased by the next paycheck, and that has been true for decades.
However, this belief does not follow you into retirement. Once the paycheck stops, a short list of decisions can lock in permanently in ways no future discipline can undo. The expensive choices rarely look like mistakes when they happen. Instead, they look like things are getting handled.
The Story of Teresa
Teresa is a CRNA who retired last fall after 26 years. She came to her first planning meeting prepared and organized. She had $2.1 million sitting in a 403(b), $140,000 in a taxable brokerage, $90,000 in cash, and a small Roth she had opened years ago. Her husband Victor is also retired, bringing in about $3,200 a month from Social Security and a small IRA, and they were covering health insurance through a marketplace plan until Medicare.
Teresa was the higher earner by a wide margin. Her Social Security benefit at 62 would be $2,600 a month, $3,700 at her full retirement age of 67, and $4,600 if she waited until 70. Every item on her initial retirement checklist felt responsible, but almost every single one was a door she was about to close permanently.
Retirement Mistake One: Filing for Social Security at 62
The number one reason nurses file for Social Security early is not a careful calculation. It is that they want the deposit to show up in their account so retirement feels real.
Filing at 62 permanently sets her benefit at about 70% of her full retirement amount for the rest of her life, and then for Victor’s, too, because the survivor benefit he inherits if she dies first is built off her number. The gap between claiming at 62 versus 67 was roughly $2,000 a month lower for the rest of their lives, a difference that runs well into six figures over a normal lifespan.
The exit options are slim. There is a strict 12-month window to file a withdrawal form and repay every dollar received, which can only ever be used once. After that window closes, there is no path back. Voluntary suspension does not exist until full retirement age at 67, meaning between 62 and 67, a regretted early claim has no fix at all.
Retirement Mistake Two: Rolling Over the 403(b) and Doing Nothing
Teresa’s next plan looked like pure logistics: move the $2.1 million 403(b) to an IRA, set it, and let it grow until she needed it. Nothing about that plan touches taxes, which is exactly the problem.
Teresa is 61, her salary has stopped, and she has not turned on Social Security yet. Required minimum distributions (RMDs) do not start until age 73, which creates an 11 to 12-year stretch where her taxable income is the lowest it will ever be again.
These gap years are the one window in a retired nurse’s financial life where money can move out of a pre-tax account at a low tax rate on purpose. Converting $120,000 to $150,000 a year to a Roth IRA and paying tax at 10%, 12%, or 22% now is far cheaper than letting that money compound inside a pre-tax account. Left alone, those dollars will come out later as forced RMDs stacked on top of two Social Security checks, pushing the household into the 24% bracket or higher for the rest of their lives. Every gap year spent doing nothing is tax bracket space that is gone forever.
Retirement Mistake Three: The Kitchen That Sends a Bill Two Years Later
Teresa also planned to pull $250,000 from the 403(b) all at once to redo her kitchen and book a big celebratory trip. While the kitchen was affordable, the way she planned to pay for it was incredibly expensive because of what a single $250,000 income year does on two separate government clocks.
The first is Medicare, which looks back two years. The income Teresa creates in 2026 sets her Medicare premium surcharge in 2028, and it works as a strict cliff. Go one dollar over a threshold, and the full surcharge triggers for the entire tier for both her and Victor because they file jointly.
The second clock is the ACA marketplace plan they are currently using. Under tax law, going one dollar over the income limit causes the entire insurance subsidy to disappear for the year. A $250,000 income year launches them completely over that cliff, triggering a five-figure loss of their ACA subsidy in the current year and adding well over $10,000 in Medicare surcharges in 2028. A manageable premium turns into something like $20,000 overnight, and none of it can be amended away.
The Point of No Return Plan
To fix these traps, Teresa needed to separate the fixable decisions from the unfixable ones and handle the irreversible choices on purpose. We call this the Point of No Return Plan. Instead of acting on instinct, she mapped out her choices against RMD timelines and Medicare lookbacks.
First, she held off on Social Security and put the claiming date on the calendar as a deliberate decision, protecting both her own lifetime benefit and Victor’s survivor benefit.
Second, she started converting her 403(b) to a Roth at roughly $130,000 a year, creating a 12-year schedule to draw down her pre-tax accounts inside a historically low tax bracket before RMDs take over.
Finally, she still got the kitchen and the trip, but she funded them using cash spread across two separate calendar years. This kept her annual income safely under the Medicare and ACA cliffs. She secured the exact retirement she wanted, but by spacing out the moves, the surprise bills that would have arrived two years or thirty years later vanished.
Avoiding Retirement Mistakes
The mistakes that matter after you retire are not the ones you can fix. They are the few you cannot take back once the paycheck stops. Sorting those irreversible decisions from the rest and handling them on purpose while you still control the timeline is the whole game.
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