One of the biggest retirement tax mistakes isn’t doing the wrong thing, but rather doing nothing for too long.
After full-time work ends, many people enter a stretch of retirement where income drops, required withdrawals haven’t started, and taxes are often lower than they’ve been in years. There’s no alarm bell when this period begins and no warning when it ends.
This phase is often called the “Gap Years”: the years between retiring and the start of Social Security and Required Minimum Distributions (RMDs). From a tax perspective, it’s one of the most flexible — and most overlooked — windows in retirement.
Why the Gap Years matter
During these years, many retirees have:
- Little or no wage income
- No required withdrawals yet
- More control over when income shows up on their tax return
That combination often places them in a lower tax bracket than they experienced while working, and sometimes in a lower bracket than they’ll face later in retirement once Social Security and RMDs stack together.
The mistake many people make is letting this window pass without a plan.
What smart planning can look like
Gap Year planning isn’t about doing something aggressive. It’s about being intentional.
Some common strategies include:
- Taking planned IRA withdrawals
Even if you don’t need the cash, withdrawing some pre-tax money earlier can reduce future RMDs and smooth taxes over time. - Partial Roth conversions
Converting a portion of traditional IRA assets while tax rates are lower can reduce future tax pressure, without overcommitting in any single year. - Managing capital gains strategically
Brokerage accounts can offer flexibility during this window, allowing gains to be realized more tax-efficiently before forced income begins. - Using Social Security timing as a tax decision
Delaying benefits can keep taxable income lower in the Gap Years, preserving room for planning moves that aren’t available later.
The bigger picture
The goal isn’t to “pay the least tax this year.”
It’s to avoid paying more than necessary over the course of retirement.
Once Social Security and RMDs begin, flexibility shrinks. The Gap Years are the time when you still have choices.
If retirement is on the horizon — or already underway — it’s worth mapping this window deliberately, before it quietly closes.