Year-End Tax Moves Every Retiree Should Consider Before December

Key Takeaways

• Most retirement tax savings happen in November and December — not in April when you file. By tax season, it’s too late to act.
• Roth conversions must be completed by December 31 to count for the current tax year — there is no extension.
• Qualified Charitable Distributions (QCDs) let you donate directly from your IRA and exclude the amount from taxable income — a powerful tool for charitably inclined retirees over 70½.
• Tax-loss harvesting isn’t just for accumulators — retirees with taxable brokerage accounts can offset gains and reduce income.
• Bunching deductions in alternating years can save thousands for retirees near the standard deduction threshold.

Table of Contents

1. Why Year-End Tax Planning Matters More in Retirement
2. Move 1: Strategic Roth Conversions Before the Deadline
3. Move 2: Maximize Qualified Charitable Distributions
4. Move 3: Tax-Loss Harvesting in Your Brokerage Account
5. Move 4: Accelerate or Defer Income to Manage Brackets
6. Move 5: Bunch Deductions for Maximum Benefit
7. Move 6: Confirm Your RMD Is Complete
8. Move 7: Check IRMAA Implications Before Acting
9. Your Year-End Tax Checklist
10. FAQ

Why Year-End Tax Planning Matters More in Retirement

Most people think about taxes in March or April — when their accountant calls. But by then, every meaningful tax decision for the prior year is locked in. The return is just math at that point.

For retirees, the real tax planning season is October through December. This is when you still have the power to control your taxable income, take advantage of bracket space, execute Roth conversions, harvest losses, and make strategic charitable gifts.

The reason this matters more in retirement than during your working years is simple: when you were working, your salary was your salary. You couldn’t control it. In retirement, you have far more control over how much taxable income you recognize in any given year — and that control is the foundation of tax-smart retirement planning.

Move 1: Strategic Roth Conversions Before the Deadline

Roth conversions must be completed by December 31 to count for the current tax year. There are no extensions, no grace periods. If you wait until January 2, the conversion counts for the next tax year.

By November, you should have a clear picture of your income for the year — Social Security payments, RMDs, pension income, capital gains distributions from mutual funds, and any other income. This tells you exactly how much “room” you have in your current tax bracket.

Consider this hypothetical: It’s November 2026. Margaret and Paul, both 68, have $82,000 in taxable income so far this year. The top of the 12% bracket for married filing jointly is approximately $98,100. They have $16,100 of bracket space to fill.

A $16,100 Roth conversion would cost them only $1,932 in additional federal tax (at 12%). That same $16,100, if left in their traditional IRA and withdrawn as part of larger RMDs in a few years, might be taxed at 22% or higher — costing $3,542+.

Tax savings from this single year-end move: ~$1,610. Repeat this for 5 years, and they’ve saved over $8,000 — while moving $80,500 into a tax-free Roth IRA.

Pro Tip: Wait until late November or early December to execute a Roth conversion. By then, you’ll know about any surprise capital gains distributions from mutual funds (which typically pay out in December) and can size your conversion accurately. Converting too early in the year risks accidentally pushing into a higher bracket.

Move 2: Maximize Qualified Charitable Distributions

If you’re 70½ or older and charitably inclined, the Qualified Charitable Distribution (QCD) is one of the most tax-efficient giving strategies available.

A Qualified Charitable Distribution allows you to donate up to $108,000 per year (2026 limit) directly from your traditional IRA to a qualified charity. The distribution:

• Satisfies part or all of your RMD (if you’re 73+)
• Is excluded from your taxable income — the money goes directly from your IRA to the charity, bypassing your tax return entirely
• Reduces your AGI, which can keep you below IRMAA thresholds, reduce the taxable portion of your Social Security, and lower your overall tax bill

Compare this to the standard approach of taking an RMD, paying tax on it, and then donating from your checking account. Even if you itemize and claim the charitable deduction, the QCD approach is often superior because it reduces AGI — which affects multiple tax calculations.

Hypothetical example: Robert, 74, has a $40,000 RMD. He donates $10,000 per year to his church. If he takes the full RMD and donates from his bank account, the $40,000 is taxable income and he claims a $10,000 charitable deduction (if he itemizes). With a QCD, only $30,000 is taxable income — the $10,000 QCD is completely excluded. The lower AGI cascades into lower taxes on Social Security, lower IRMAA exposure, and a cleaner overall tax picture.

Move 3: Tax-Loss Harvesting in Your Brokerage Account

Tax-loss harvesting — selling investments that have declined below your purchase price to realize a tax loss — isn’t just for people in the accumulation phase. Retirees with taxable brokerage accounts can use losses to offset capital gains and up to $3,000 per year in ordinary income.

By December, review your taxable accounts for positions that are underwater. If you sell a stock or fund at a $5,000 loss, that loss can offset $5,000 in capital gains elsewhere in your portfolio. Any remaining losses offset up to $3,000 of ordinary income, and anything beyond that carries forward to future years.

Two rules to watch:

1. The wash-sale rule: If you sell a security at a loss and buy a “substantially identical” security within 30 days (before or after), the loss is disallowed. Sell a broad market index fund and wait 31 days before rebuying, or immediately purchase a different but similar fund.

1. Pair with capital gains harvesting: In years where your taxable income keeps you in the 12% bracket or lower, long-term capital gains are taxed at 0%. You can actually sell appreciated positions and pay no tax on the gains. This is the opposite of loss harvesting — and it’s equally powerful.

Thomas’ Take: December is the time to look at your brokerage account with tax-colored glasses. Losses reduce your tax bill now. Gains in the 0% bracket are free money. Either way, you’re making your portfolio more tax-efficient without changing your investment strategy.

Move 4: Accelerate or Defer Income to Manage Brackets

Retirees have more income-timing flexibility than most people realize. Unlike a salaried employee who can’t control when they get paid, retirees can often choose when to recognize certain types of income:

Accelerate income into this year if:

• You’re in a lower bracket than you expect to be next year
• You want to fill bracket space with a Roth conversion before RMDs start
• You have capital gains that would be taxed at 0% this year but not next year

Defer income to next year if:

• You’ve already pushed into a higher bracket this year
• Additional income would trigger IRMAA surcharges
• You expect lower income next year (perhaps a one-time event inflated this year’s income)

Practical example: if selling a rental property in December would push you over the 22% bracket threshold, closing in January might keep this year’s income in the 12% bracket — saving thousands. Conversely, if you’re already in the 22% bracket this year and expect to drop to 12% next year, defer the sale.

Move 5: Bunch Deductions for Maximum Benefit

The 2026 standard deduction for married couples filing jointly is $32,200. Many retirees find themselves just above or below this threshold, making the choice between itemizing and taking the standard deduction a close call.

The bunching strategy works like this: instead of spreading deductible expenses (charitable giving, medical expenses, state/local taxes) evenly across years, concentrate them into alternating years to exceed the standard deduction in the “bunching” year and take the standard deduction in the off year.

Hypothetical: Helen, 71, typically donates $8,000/year to charity, has $6,000 in state income taxes, and $4,000 in unreimbursed medical expenses. Her annual itemizable deductions total $18,000 — well below the $16,100 standard deduction for single filers (she’d take the standard deduction either way).

But if she donates $16,000 to charity every other year instead of $8,000 every year, her itemizable deductions in the “bunching” year jump to $26,000 — well above the standard deduction. In the off year, she takes the standard deduction. Over two years, she gets more total deduction than splitting evenly.

A donor-advised fund makes bunching even easier — you contribute a large amount in one year (getting the immediate deduction) and distribute to charities over multiple years.

Move 6: Confirm Your RMD Is Complete

If you’re 73 or older, your required minimum distribution must be completed by December 31 (April 1 of the following year for your very first RMD only). Missing the deadline triggers a 25% penalty on the amount not withdrawn.

By November, verify:

• Your RMD calculation is correct for each account (traditional IRA, 401k, 403b)
• The distribution has been processed — don’t wait until December 30 to request it. Processing delays happen, especially around the holidays.
• You’ve accounted for any QCDs that should count toward the RMD
• If you have multiple IRAs, you’ve satisfied the total RMD (you can take it from any combination of IRA accounts, but 401k RMDs must come from each individual 401k)

Pro Tip: Set a calendar reminder for November 1 every year to confirm your RMD status. This gives you a full two months to correct any issues. I’ve seen clients panic on December 28 because their custodian’s processing was delayed — don’t be that person.

Move 7: Check IRMAA Implications Before Acting

Every tax move on this list has a potential IRMAA consequence. Before executing any Roth conversion, capital gain realization, or RMD timing decision, check whether the additional income will push your MAGI above an IRMAA threshold.

Remember: 2026 IRMAA is based on your 2024 tax return. But your 2026 income decisions will affect your 2028 IRMAA. That means a year-end Roth conversion in December 2026 could cost you extra Medicare premiums in 2028.

The key thresholds for married filing jointly: $194,000, $246,000, $306,000, $386,000, and $750,000. Map your projected MAGI for the year against these brackets. If you’re within $10,000 of a threshold, model the IRMAA impact before making any moves.

A Roth conversion that saves $2,000 in future taxes but triggers $3,800 in IRMAA surcharges is a net loss. Always run both calculations.

Your Year-End Tax Checklist

Use this checklist every November:

• Review year-to-date taxable income against bracket thresholds
• Calculate remaining bracket space for potential Roth conversion
• Check brokerage account for tax-loss harvesting opportunities
• If 70½+, evaluate QCD opportunity against planned charitable giving
• Confirm RMD has been taken (or is scheduled before December 31)
• Calculate projected MAGI against IRMAA thresholds for the look-back year
• Review capital gains: any 0% bracket opportunity for gain harvesting?
• Evaluate deduction bunching: itemize this year or next?
• Schedule December conversations with your tax advisor and financial planner

FAQ

When is the deadline for a Roth conversion to count for this tax year? December 31. There are no extensions. The conversion must be processed and completed by the last day of the calendar year. Contact your custodian by mid-December to ensure processing time, especially if you’re converting from a 401(k) to a Roth IRA, which may involve additional paperwork.

Can I do a Roth conversion and a QCD in the same year? Yes, but they serve different purposes. A QCD reduces your taxable income by excluding the distribution from AGI. A Roth conversion increases your taxable income. In the right combination, a QCD can “make room” for a larger Roth conversion by keeping your total taxable income within a target bracket. This is advanced planning — work with a tax professional.

What if I realize in November that I’ve over-converted to a Roth? Unfortunately, since 2018, Roth conversions cannot be reversed or recharacterized. This is why I recommend waiting until late November to convert — by then, you have a nearly complete picture of your annual income and can size the conversion accurately.

How do I know if I should itemize or take the standard deduction? Add up your potential itemized deductions: state and local taxes (capped at $10,000), mortgage interest, charitable contributions, and qualifying medical expenses (above 7.5% of AGI). If the total exceeds the standard deduction ($32,200 for married filing jointly in 2026), itemize. If not, take the standard deduction. If you’re close to the threshold, consider bunching deductions into alternating years.

The Best Tax Savings Happen Before January 1

April 15 is a deadline for filing, not for planning. The retirees who pay the least in lifetime taxes are the ones making strategic moves in November and December — not scrambling in March. Every one of these strategies has a built-in expiration date, and once January arrives, the window for the current tax year closes permanently.

If you’d like help building a year-end tax strategy tailored to your retirement income picture, let’s schedule a conversation before the December rush.

Thomas Clark is a Senior Lead Wealth Advisor at Confluence Capital Management, LLC. Investment advisory services offered through Altitude Capital Management, LLC, an SEC-registered investment advisor. The information provided is for educational and informational purposes only and does not constitute personalized investment advice. Past performance is not indicative of future results. Consult with a qualified financial professional before making any investment decisions.

Thomas Clark

Thomas Clark is a Series 65 licensed investment advisor and experienced trader. He specializes in investing, retirement planning, and market analysis, helping individuals build wealth and make informed financial decisions.