The seven best year-end tax moves for 2026 are raising your 401(k) deferral toward the $24,500 limit, funding an HSA, harvesting investment losses, giving to charity, claiming the new senior, tip, and overtime deductions, and testing whether itemizing beats the standard deduction. Most deadlines land on December 31, 2026.
| Key Takeaways: The 2026 401(k) limit is $24,500, with an $8,000 catch-up at 50 and older and $11,250 at ages 60 to 63 (IRS).HSA limits for 2026 are $4,400 for self-only coverage and $8,750 for family coverage (IRS Rev. Proc. 2025-19).The 2026 standard deduction is $16,100 single and $32,200 married filing jointly (IRS).Single filers pay 0% on long-term capital gains up to $49,450 of taxable income, or $98,900 for married couples (IRS Rev. Proc. 2025-32).Non-itemizers can now deduct up to $1,000 ($2,000 joint) in cash gifts to charity (Taft). |
Why do year-end tax moves matter more this year?
Congress rewrote parts of the tax code in 2025, and several changes bite for the first time on your 2026 return. A new charity deduction, higher limits, and four brand-new deductions mean the usual December checklist is out of date. Making the right year-end tax moves 2026 can shift hundreds or thousands of dollars back into your pocket.
Most of these moves must be done by Thursday, December 31, 2026. A few, like IRA and HSA contributions, can wait until April 15, 2027. We note each deadline below.
Which year-end tax moves are worth making?
1. Raise your 401(k) contributions before your last paycheck
How it works: A traditional 401(k) takes money from your pay before income tax, lowering your taxable income dollar for dollar. For 2026 you can defer $24,500, plus $8,000 if you are 50 or older, or $11,250 if you are 60 to 63 (IRS). Deferrals must come out of 2026 paychecks, so you need to adjust before your final one.
Real example: A single filer in the 22% bracket (taxable income of $50,401 to $105,700) who adds $3,000 in deferrals saves about $660 in federal tax (IRS brackets).
Estimated savings: Your bracket times the extra amount, so $240 to $1,000 on a $2,000 to $5,000 increase.
Pros and cons: Pros are lower tax now and employer match. The con is that early withdrawals usually add a 10% penalty. Skip this if you would miss rent or debt payments.
Action step: Ask payroll to raise your per-paycheck percentage for the remaining pay periods.
2. Fund an IRA, or a Roth IRA, and check the Saver’s Credit
How it works: You can contribute $7,500 to an IRA for 2026, or $8,600 if you are 50 or older, and you have until April 15, 2027 (IRS). A traditional IRA deduction phases out between $81,000 and $91,000 of income for single filers covered by a workplace plan. A Roth IRA, funded with after-tax money, phases out between $153,000 and $168,000 for single filers and $242,000 and $252,000 for joint filers.
Real example: The Saver’s Credit is a tax credit for lower earners who save for retirement. For 2026, the income limits are $40,250 single, $60,375 head of household, and $80,500 married filing jointly (IRS). Credits generally run 10% to 50% of the first $2,000 you contribute (IRS).
Estimated savings: A 22% bracket deduction on $7,500 is about $1,650. A qualifying Saver’s Credit can add up to $1,000 for one person.
Best for: Anyone without a workplace plan or with room left after the match. Skip this if you are above the Roth limits and have no deductible option, and consider a backdoor Roth with a tax professional.
Action step: Set up an automatic monthly IRA transfer of $625 to hit $7,500 by next December.
3. Max out your HSA and spend your FSA
How it works: A health savings account (HSA) is a triple tax-advantaged account: deductible going in, tax-free growth, and tax-free withdrawals for medical costs. For 2026 the limit is $4,400 self-only and $8,750 family, with a $1,000 catch-up at 55 and older. You need a high-deductible plan with a deductible of at least $1,700 self-only or $3,400 family (IRS Rev. Proc. 2025-19). A health FSA allows $3,400 with a $680 carryover if your plan offers it (IRS).
Real example: A family in the 22% bracket that contributes the full $8,750 saves about $1,925 in federal tax.
Pros and cons: Pros are the triple tax break and funds that roll over every year. The con is that you must have a qualifying plan. Warning: unused FSA money beyond the carryover can be forfeited.
Action step: Check your FSA balance and schedule eligible expenses, like glasses or dental work, before year-end.
4. Harvest investment losses, and gains too
How it works: Tax-loss harvesting means selling investments at a loss to offset capital gains. If losses exceed gains, you can deduct up to $3,000 against ordinary income and carry the rest forward. The wash-sale rule disallows the loss if you buy the same or a substantially identical investment within 30 days before or after (IRS Publication 550).
Real example: Selling a stock at a $5,000 loss against a $5,000 gain taxed at 15% saves $750. Meanwhile, single filers can realize long-term gains at 0% up to $49,450 of taxable income, or $98,900 married filing jointly (IRS Rev. Proc. 2025-32).
Best for: Taxable brokerage accounts. Skip this if your losses sit in an IRA or 401(k), where they cannot be deducted.
Action step: Review your brokerage statement for losers by mid-December so the trade settles before year-end.
5. Give smarter with the new charity rules
How it works: Starting in 2026, non-itemizers can deduct up to $1,000 ($2,000 joint) of cash gifts to qualifying public charities. Donor-advised funds do not count (CPA Practice Advisor). Itemizers face a new floor, where only gifts above 0.5% of adjusted gross income are deductible, and top-bracket taxpayers get capped at a 35% benefit (Taft). The 60% of income limit for cash gifts is permanent (CPA Practice Advisor).
Real example: Taft’s example: on $400,000 of income and $20,000 of gifts, the first $2,000 is not deductible. At a typical $80,000 income, the floor is only $400.
Estimated savings: A $1,000 deduction at 12% to 22% saves $120 to $220.
Action step: Give cash to a public charity before December 31, and keep the receipt. If you itemize, consider bunching two years of gifts into one.
6. Claim the new deductions for seniors, tips, overtime, and car loans
How it works: For tax years 2025 through 2028, the IRS lists four new deductions: $6,000 per person for ages 65 and older (phasing out above $75,000 single and $150,000 joint), up to $25,000 for tips, up to $12,500 ($25,000 joint) for overtime, and up to $10,000 of interest on a new, U.S.-assembled personal vehicle loan. The tips and overtime phase-outs begin at $150,000 single and $300,000 joint, and the car loan phase-out begins at $100,000 and $200,000 (IRS).
Real example: A 66-year-old single filer in the 22% bracket claiming the $6,000 senior deduction saves about $1,320.
Best for: Seniors, tipped workers, hourly workers with overtime, and new-car buyers. Skip this if your income exceeds the phase-out ranges.
Action step: Gather year-end pay stubs and your loan interest statement, and ask your preparer about the new schedule.
7. Run the standard deduction versus itemizing math
How it works: The 2026 standard deduction is $16,100 single, $32,200 joint, and $24,150 head of household. Filers 65 or older or blind add $1,650 if married or $2,050 if unmarried (IRS Rev. Proc. 2025-32). You itemize only if mortgage interest, charity, medical costs, and state and local taxes add up to more. The SALT cap is $40,400 for 2026, and it shrinks by 30 cents per dollar of income above $505,000, down to a $10,000 floor (Q3 Advisors, TurboTax).
Real example: A married couple with $18,000 in mortgage interest, $12,000 in state and local taxes, and $4,000 in gifts has $34,000 in itemized deductions, just $1,800 above the standard deduction.
Estimated savings: That $1,800 excess saves about $396 at the 22% rate. Bunching two years of gifts into one year can push you above the standard deduction every other year.
Action step: Total your deductible expenses by December 15. If you are close, consider prepaying property taxes or donating a second year’s gifts.
How do the key 2026 numbers compare?
| Move | 2026 limit | Deadline | Who benefits most |
|---|---|---|---|
| 401(k) deferrals | $24,500 (+$8,000 at 50+) | Last 2026 paycheck | Higher earners with payroll access |
| IRA or Roth IRA | $7,500 (+$1,100 at 50+) | April 15, 2027 | Anyone with earned income |
| HSA | $4,400 self, $8,750 family | April 15, 2027 | People on high-deductible plans |
| Health FSA | $3,400 ($680 carryover) | Plan year-end | Families with predictable costs |
| Loss harvesting | $3,000 net loss deduction | December 31, 2026 | Taxable brokerage investors |
| Charity (non-itemizer) | $1,000 / $2,000 joint | December 31, 2026 | Standard-deduction filers |
| Senior deduction | $6,000 per person | On the 2026 return | Ages 65 and older |
Sources: IRS, IRS Rev. Proc. 2025-19, IRS, IRS, Taft. Loss harvesting limit per IRS Publication 550.
Bonus move: Check your withholding. To avoid an underpayment penalty, you generally need to pay at least 90% of this year’s tax or 100% of last year’s, or 110% if your income was above $150,000 (IRS). The final estimated payment is due January 15, 2027.
Can you beat the December 31 Countdown?
| The December 31 CountdownBeginner: Raise your 401(k) deferral by 1% this week.Pro: Check your HSA and FSA balances and schedule one medical or dental appointment.Expert: Review your brokerage account for losses and run the standard-versus-itemize math.Your turn: Which move will you do first? Tag a friend who always files in April. |
| Quick WinsTotal potential savings: About $660 (extra 401(k) deferrals) to $1,925 (full family HSA) per move, depending on your bracket.Time investment: 30 to 90 minutes in total.Difficulty: Easy to medium.Best for: Salaried workers, families, and anyone with a taxable brokerage account. |
Frequently asked questions
What is the deadline for year-end tax moves in 2026?
Most deadlines are December 31, 2026, including 401(k) deferrals, charity gifts, and loss harvesting. IRA and HSA contributions for 2026 can wait until April 15, 2027. Check your employer’s payroll cutoff, which is often earlier.
How much can I contribute to my 401(k) in 2026?
You can contribute $24,500 to a 401(k) in 2026. Workers 50 and older can add an $8,000 catch-up, and those ages 60 to 63 can add $11,250. The IRA limit is separate at $7,500.
Is itemizing worth it in 2026?
Itemizing is worth it only if your deductions exceed the standard deduction of $16,100 single or $32,200 joint. The SALT cap rose to $40,400 for 2026, which helps high-tax-state homeowners. Add up your mortgage interest, taxes, charity, and medical costs to compare.
Can I deduct charity if I take the standard deduction?
Yes, up to $1,000 single or $2,000 joint in 2026 for cash gifts to qualifying public charities. Donor-advised funds do not qualify. Keep receipts.
Does tax-loss harvesting work in an IRA or 401(k)?
No, tax-loss harvesting only works in taxable brokerage accounts. Losses inside an IRA or 401(k) are not deductible. Watch the 30-day wash-sale rule when you rebuy.
Ready to cut your 2026 tax bill?
| Your Next Step: Pick one move from this list and finish it this week. A tax software or a local preparer can run the numbers for your situation.Get tax help here: [Affiliate link placeholder] |
Sources
- IRS: 401(k) limit increases to $24,500 for 2026, IRA limit increases to $7,500
- IRS: 2026 tax inflation adjustments, including amendments from the One Big Beautiful Bill
- IRS: Revenue Procedure 2025-32 (2026 inflation adjustments)
- IRS: Revenue Procedure 2025-19 (2026 HSA limits)
- KPMG: Rev. Proc. 2025-32, inflation adjustments for 2026 individual taxpayers
- IRS: Working Families Tax Cuts, tax deductions for working Americans and seniors
- IRS: Charitable contribution deductions
- CPA Practice Advisor: Planning for charitable contributions in 2026, February 18, 2026
- Taft: Charitable giving after the OBBBA, the 2026 outlook, April 7, 2026
- Q3 Advisors: SALT deduction cap 2026, reviewed October 5, 2026
- TurboTax: How the SALT cap increase could lower your tax bill, September 23, 2026
- IRS: Publication 550, Investment Income and Expenses
- IRS: Estimated taxes
- IRS: Retirement Savings Contributions Credit (Saver’s Credit)
| Disclosure: New Money Fast may earn a commission if you use tax or financial products through links on this page, at no cost to you. This article is educational, not tax, legal, or financial advice. NMF is not a licensed tax professional or financial advisor. Tax rules depend on your situation, so consult a qualified preparer before acting. |
