Tax Deduction Planning for 2026
Before paying an expense early for a tax deduction, check whether it will change your return. The standard deduction, limits on particular expenses, and your income in each year all affect the result.
A deduction reduces taxable income. The tax savings depend on your tax rate and the rules for that deduction. This guide covers federal individual income tax planning for 2026.
Compare the standard deduction with itemizing
Start with the standard deduction for your filing status, then compare it with the itemized deductions you are allowed to claim after their limits.
| Filing status | 2026 base standard deduction |
|---|---|
| Single or married filing separately | $16,100 |
| Married filing jointly or qualifying surviving spouse | $32,200 |
| Head of household | $24,150 |
These are the IRS's base amounts for 2026. Age, blindness, dependent status, and filing restrictions can change the amount available. If you file separately and your spouse itemizes, you generally cannot take the standard deduction.
Taking the standard deduction does not prevent every other deduction. Certain adjustments to income and the new charitable deduction for eligible cash gifts by nonitemizers have their own rules. Personal and dependency exemption deductions are no longer available.
The alternative minimum tax, a separate federal tax calculation, can also affect the choice. In some cases, itemizing produces a lower total tax even when the itemized amount is smaller than the standard deduction. The Form 6251 instructions explain this exception.
Check the 2026 limits
| Expense | What to check before changing the payment date |
|---|---|
| Medical and dental expenses | Only eligible, unreimbursed expenses above 7.5% of adjusted gross income count toward the medical itemized deduction. |
| State and local taxes | The 2026 limit is $40,400, or $20,200 if married filing separately. Higher income can reduce that limit. |
| Charitable gifts | Itemizers face a new 0.5% floor in 2026, along with other limits. Nonitemizers have a separate deduction for eligible cash gifts. |
| Mortgage interest and other expenses | Eligibility depends on the expense and its rules. Paying a bill does not by itself establish a deduction. |
The state and local tax limit starts falling when modified adjusted gross income exceeds $505,000, or $252,500 for married filing separately. It cannot fall below $10,000, or $5,000 for separate filers. A payment above your applicable limit may add nothing to your federal deduction.
For itemizers, the charitable floor is 0.5% of contribution base, generally adjusted gross income calculated without net operating loss carrybacks. Percentage limits, eligible-recipient rules, and other restrictions also apply. If you do not itemize, the 2026 deduction is limited to $1,000, or $2,000 on a joint return, for eligible cash gifts. Gifts to donor-advised funds and supporting organizations do not qualify for that nonitemizer deduction.
A separate limit can reduce the benefit of itemized deductions for taxpayers in the top 37% bracket. The IRS explains this limit and other 2026 changes in Publication 505.
The former miscellaneous deductions subject to a 2% income floor, such as most unreimbursed employee expenses, are no longer available; specific statutory exceptions have their own rules.
Medical expenses: an example
Suppose your 2026 adjusted gross income is $100,000 and you pay $12,000 of eligible medical expenses that are not reimbursed.
| Calculation | Amount |
|---|---|
| Eligible unreimbursed expenses | $12,000 |
| 7.5% of $100,000 adjusted gross income | $7,500 |
| Medical itemized deduction before other applicable limits | $4,500 |
That $4,500 is part of your itemized deductions, not the amount of tax saved. You would combine it with your other allowable itemized deductions and compare the result with your standard deduction.
Expenses reimbursed by insurance or paid with tax-free health savings account or flexible spending account funds cannot be deducted again. Check Publication 502 for eligible expenses and the rules for expenses paid for a spouse or dependent.
Review both years before moving a payment
For a cash-method individual taxpayer, payment timing can affect the year of a deduction, but the rule depends on the expense. For example, a charitable contribution charged to a credit card generally counts in the year charged, even if the card bill is paid the following year. A promise to donate is not a completed gift.
Compare the expected result for both years before accelerating a payment. Consider your income, the standard deduction, applicable floors and caps, and the cash you will need for other expenses. Do not prepay future medical care on the assumption that it will qualify immediately; special restrictions apply.
Keep the records needed to support each deduction. For each charitable gift of $250 or more, obtain the required written acknowledgment. Donated clothing generally must be in good used condition or better and is valued at fair market value, subject to the applicable rules. The IRS explains payment timing, records, and noncash gift requirements in Publication 526.