Itemize or Take the Standard Deduction? (Go / No-Go)
Most filers are better off with the standard deduction. Itemizing only pays when your itemized total clears it. Run these gates before you decide — and remember the 2025 OBBBA changes affect several deduction rules.
1Threshold gate
Do your itemized deductions exceed your standard deduction?
State + local taxes (capped), mortgage interest, charitable, medical above the floor, and other qualifying deductions sum to MORE than the standard deduction.
Your itemized total is below the standard deduction — taking the standard puts more in your pocket.
2SALT cap gate
Does the state/local tax cap bind you?
Your SALT is high and, combined with other deductions, still clears the standard after the cap — itemizing wins.
SALT alone would exceed the cap; once capped, the rest rarely pushes you over the standard — take the standard.
3Homeownership gate
Do you have meaningful mortgage interest and property tax?
Large mortgage interest + property tax (under SALT cap) makes itemizing likely worthwhile.
Renting or a small mortgage — little to itemize; standard is simpler and larger.
4Local-income-tax gate (city filers)
Do you pay a city income tax (NYC, Philadelphia, DC)?
The local tax is usually deductible on your STATE return (subject to SALT cap) and can tip itemizing at the state level even if federal is standard.
You don't pay a local income tax, so this lever does not apply — decide on federal rules alone.
5OBBBA timing gate
Are you using current-year deduction rules?
You confirmed the 2026 figures (standard deduction, SALT cap, and OBBBA-changed itemized rules) before filing.
You are relying on pre-2025 assumptions — verify current-year rules; several TCJA items were made permanent and some itemized rules changed.
Shortcut
- Add up your real itemized deductions (use the Deduction Worksheet).
- If total > standard deduction → itemize (notably if you have a big mortgage or high SALT).
- If total ≤ standard → take the standard; it is larger and simpler.
- Check your STATE return separately — local income tax can flip the state-level answer.
Related: Standard vs Itemized comparison, City income tax guides, Federal income tax tool, and the open city local-tax dataset (JSON).
Worked example — single filer, 2026
Suppose a single filer in 2026 has: $12,000 of state & local tax (under the $40,400 SALT cap), $8,000 of mortgage interest, and $3,000 of charitable cash gifts. The itemized total is $23,000. The 2026 single standard deduction is $16,100. Because $23,000 exceeds $16,100, itemizing is better by about $6,900. (Illustrative: it excludes the medical-floor and other items, and assumes no AMT interaction.)
Flip the facts: a renter with only $6,000 of SALT and $1,500 of charitable gifts totals $7,500 itemized — far below $16,100 — so the standard deduction wins by roughly $8,600. The threshold gate is the whole decision.
State vs federal are separate decisions
You can itemize on your federal return and still take the standard on your state return (or vice versa) — most states start from federal AGI but let you choose independently. A city income tax you pay may be deductible on the state return (subject to the SALT cap) and can tip the state-level answer toward itemizing even when federal is standard. Always run both levels; the Deduction Worksheet tracks the federal side.
FAQ
Yes. The choice is made separately on each year’s return. A year with a large mortgage or big SALT may favor itemizing; a lower-expense year may favor the standard.
It caps the state/local piece at $40,400 (married joint) for 2026 under OBBBA, with a phase-down above $505,000 of income. Once capped, extra SALT no longer helps itemizing, so many high-SALT filers take the standard.
Medical expenses are deductible only above 7.5% of AGI (IRC §213(a)). For most filers that floor is high, so medical rarely decides the standard-vs-itemized question unless expenses are severe.