Every tax return contains one fork in the road: take the standard deduction, a flat amount the IRS hands everyone, or itemize, adding up specific expenses like mortgage interest and state taxes, and deduct whichever is bigger. That’s the entire decision. Bigger number wins.

The reason this deserves ten minutes of your attention anyway: the standard deduction has grown so large that most filers pass the “just take it” test without realizing there was a test, while a meaningful minority, especially homeowners in high-tax states, are leaving money behind by not checking the other path. Here’s the 2026 math and the four numbers that settle it.

The 2026 standard deduction

For tax year 2026, the return you’ll file in early 2027, the IRS set the standard deduction at $16,100 for single filers and married people filing separately, $32,200 for married couples filing jointly, and $24,150 for heads of household. Those figures come from Revenue Procedure 2025-32 and reflect the higher baseline the 2025 tax law locked in.

Age adds more. Filers who are 65 or older or blind get an additional standard deduction for 2026 of $1,650 per qualifying condition for married filers, or $2,050 if unmarried. A single 68-year-old, for instance, starts at $18,150 before entering a single receipt. (The new $6,000 senior deduction from the 2025 law is a separate item that stacks on top for those under its income limits, whether or not you itemize, so it doesn’t change this comparison.)

Not sure of your exact amount? The IRS has a two-minute interactive tool: How much is my standard deduction?

What itemizing actually counts

Itemized deductions live on Schedule A, and for most households they boil down to four categories:

State and local taxes (SALT). State income or sales taxes plus property taxes, subject to a cap. The 2025 tax law raised that cap from $10,000 to $40,000 starting in 2025, with small scheduled increases each year through 2029, though the cap shrinks back toward $10,000 for very high incomes (above roughly half a million dollars).

Home mortgage interest. Interest on up to $750,000 of loans used to buy, build or substantially improve your home. Your lender reports the year’s interest on Form 1098, so this number requires zero math on your part.

Charitable gifts. Cash and property given to qualified charities, with documentation rules that get stricter as amounts grow.

Medical and dental expenses, but only the portion that exceeds 7.5 percent of your adjusted gross income. For most people in most years this contributes nothing; in a year with major surgery, assisted-living costs or big dental work, it can suddenly dominate.

The simple test

Add four numbers: your state and local taxes (capped), your mortgage interest from Form 1098, your charitable giving, and any medical costs above the 7.5 percent floor. Compare the total to your standard deduction. That’s it.

Two quick profiles show how it goes. A renting couple in Texas with $4,000 of charitable gifts: no state income tax, no mortgage interest, so their itemized total is around $4,000 plus property-adjacent nothing, versus a $32,200 standard deduction. Not close, and this is why the large majority of returns take the standard deduction: for renters and owners with small or paid-off mortgages, the flat amount simply wins.

Now a couple in New Jersey with a $450,000 mortgage at 6.5 percent and $16,000 in combined property and state income taxes: roughly $29,000 of interest plus $16,000 of SALT, now fully deductible under the raised cap, puts them near $45,000 before a dollar of giving. Itemizing beats the standard deduction by more than $12,000, worth roughly $2,700 in tax at a 22 percent rate. Under the old $10,000 SALT cap, this same couple was a coin flip; the 2025 law’s higher cap flipped many households like them back into itemizing territory. If your software defaulted you to the standard deduction for years, that habit is worth rechecking now.

When it’s close: the bunching move

If your itemizable total hovers just under the standard deduction every year, you can beat the system legally by timing. Concentrate two years of charitable giving into one year, December 2026 and January 2027 gifts both pushed into 2026, for example, then itemize that year and take the standard deduction the next. Same generosity, more deduction. People with a big flexible expense, like an elective medical procedure, can apply the same logic to clear the 7.5 percent floor in a single year.

New in 2026: givers who don’t itemize get a little back

One more change worth knowing this year. Starting with tax year 2026, the 2025 law lets non-itemizers deduct charitable cash gifts, up to $1,000 for single filers and $2,000 for joint filers, on top of the standard deduction, as described in the IRS’s summary of the law’s new and enhanced deductions. It’s not a reason to switch strategies, but it softens the old all-or-nothing trade for the majority who give something and itemize nothing. Keep the receipts; the substantiation rules still apply.

The bottom line

Run the four-number test once a year, in about the time it takes to find your Form 1098. Most people will confirm the standard deduction wins and move on with a clear conscience. Homeowners with a sizable mortgage in a higher-tax state, and anyone with an unusual medical or charitable year, should actually add it up, especially now that the SALT cap has quadrupled. The fork in the road isn’t complicated. It just rewards the people who look down both paths before walking.

This article was produced with AI assistance and reviewed by a human editor. Figures are linked to their primary sources; where a claim could not be verified from the public record, we say so.