8 Smart Tax Moves to Make Before December 31, 2025

By Michelle Cho, CFP®, BFA™, ChSNC® | Founder, Echo Wealth Partners 

You lead teams, drive innovation, and carry more mental load than most people realize; and your money should work just as intentionally as you do. Between now and December 31, 2025, a handful of smart, values-aligned moves can lower your lifetime tax bill, boost flexibility, and fund what matters most to you—family, health, impact, and freedom. Here are eight high-leverage plays to consider.

1) Max Out Your Workplace Plan (401(k)/403(b)/457/TSP)

Why it matters: Pre-tax deferrals can reduce 2025 taxable income; Roth deferrals build tax-free future dollars. 

What to know: The 2025 employee deferral limit is $23,500. Standard catch-up (50+) is $7,500; ages 60–63 have a special “super catch-up” of $11,250 for 2025 if the plan allows. Adjust your payroll now so the dollars actually hit this year.  Evaluate your current cash flow and cash reserve level before making move.

Heads-up for 2026: If prior-year wages exceed $145,000, catch-ups must be Roth (after-tax). Use 2025 to set your mix.

Quick action: Divide the remaining deferral you want by your remaining pay periods and update the deferral amount.

2) Make a Roth IRA Contribution (or Do a Backdoor Roth)

Why it matters: Tax-free growth and no RMDs in retirement.  You will have more options in retirement to make tax-efficient withdrawals. 

What to know: The 2025 IRA contribution limit is $7,000 (or $8,000 if age 50+). If your income is too high for a direct Roth (Single > $165kk; Married joint > $246k), the backdoor Roth (non-deductible Traditional IRA → quick Roth conversion) may work—just mind the pro-rata rule and file Form 8606.

Quick action: If you’re over the income limits, ask your advisor or CPA to map a clean backdoor Roth path (including any rollovers needed to avoid pro-rata surprises).

3) Consider a Strategic Roth Conversion

Why it matters: Converting pre-tax IRA/401(k) dollars now can reduce future RMDs and create a tax-free pool later. 

How to decide: Model your 2025 marginal bracket, state tax, and IRMAA considerations; then “fill” to the top of a target bracket. Pairing conversions with charitable giving (see #7) can neutralize the tax hit. If you’re on sabbatical or stepping back to care for family, you’re likely in a lower tax bracket. It's prime time to consider converting pre-tax IRA/401(k) dollars to Roth up to the top of your target bracket.

Deadline: Conversions must be completed by Dec 31, 2025.

4) Fund Your HSA (Triple Tax Advantage)

Why it matters: HSAs are uniquely powerful: deductible (or pre-tax via payroll), tax-free growth, and tax-free withdrawals for qualified medical expenses—now or decades from now. 

2025 limits: $4,300 self-only and $8,550 family, plus $1,000 catch-up at 55+. Your health plan must be HSA-eligible. SA-eligible. Bonus: In retirement, HSAs can quietly fund Medicare premiums and long-term care (LTC) expenses within the rules.

Quick action: If eligible, automate monthly contributions to hit your 2025 limit.

5) Pressure-Test Your Long-Term Care Plan

Why it matters: An LTC event can upend even solid retirement plans. 

Your options: Traditional LTC insurance, life+LTC hybrid policies, self-funding with portfolio/HSA, or some mix. Eligible LTC premiums may be deductible (subject to age-band caps and AGI thresholds); HSAs can be used for eligible LTC premiums up to IRS limits. (Confirm your specific age-band amounts with your tax pro.)

Quick action: Decide your LTC funding approach now. Insurance underwriting is easier sooner than later.

6) Use 529 Plans Intentionally (and Know the New Rollover Rule)

Why it matters: Tax-free growth for education and, thanks to SECURE 2.0, more flexibility for leftovers. 

2025 move: Consider front-loading gifts (and coordinating with the annual exclusion), or the 5-year election if appropriate. If a beneficiary won’t need all funds, you may be able to roll unused 529 dollars to the beneficiary’s Roth IRA—up to $35,000 lifetime, subject to the 15-year rule and annual Roth limits.

Quick action: Align owner/beneficiary and set a 2–3 year funding plan built around actual costs.

7) Bunch Charitable Giving with a Donor-Advised Fund (DAF)

Why it matters: “Bunching” two or three years of gifts into 2025 can push you over the standard deduction and increase the tax value of your giving. 

Best practice: Donate appreciated securities held >1 year to potentially avoid capital gains and deduct fair market value (subject to AGI limits). Complete transfers by Dec 31 to count for 2025.

Quick action: Identify positions with large embedded gains and move them to your DAF; grant to charities over time on your schedule.

8) Don’t Miss RMDs—and Consider QCDs (70½+)

Why it matters: Missed Required Minimum Distributions trigger penalties; Qualified Charitable Distributions (QCDs) can reduce taxable income directly. 

2025 rules: RMD age is 73 (75 begins in 2033). QCDs (from IRAs only, age 70½+) can be up to $108,000 in 2025, sent directly to eligible charities (not DAFs). QCDs can satisfy all or part of your RMD.

Quick action: If you’re 70½+, initiate QCDs early—custodians get swamped in December.

A Few Planning Extras (if they fit your year)

• Annual gift-tax exclusion: $19,000 per recipient in 2025 (double with gift-splitting). Useful for funding 529s or trust strategies.

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• RSUs/stock options: Coordinate exercises/vesting with conversions and DAF gifts to manage brackets and the 3.8% NIIT.

Your Next Best Step

Pick two moves you can execute this month. Then schedule a check-in with your advisor & CPA team to coordinate the rest. Great planning is less about complexity and more about sequencing the right actions at the right time.

Disclaimer: This article is for informational purposes only and is not intended to be personal financial , tax or legal advice. 2025 limits and rules referenced from IRS sources.