Standard Deduction vs Itemized: Which Saves You More in 2025?

Since the Tax Cuts and Jobs Act doubled the standard deduction in 2018, the share of filers itemizing has dropped from about 30% to roughly 10%. For 2025 the standard deduction climbed again — to $15,000 for singles, $30,000 for married filing jointly, and $22,500 for heads of household. To beat that with itemized deductions, you need real, documented expenses.

What 'itemizing' means

Itemizing means listing specific deductible expenses on Schedule A instead of taking the flat standard deduction. The four main itemizable categories are state and local taxes (SALT, capped at $10,000), mortgage interest on up to $750,000 of debt, charitable contributions, and medical expenses above 7.5% of AGI.

The 60-second test

Add: your state income or sales tax + property tax (capped at $10,000 combined) + annual mortgage interest + charitable giving + any medical above 7.5% of AGI. If that total beats $15,000 single / $22,500 HoH / $30,000 MFJ, itemize. If not, take the standard.

Real-world example: who still itemizes

A married couple in California with $14,000 of state income tax (capped to $10,000 with property tax), $18,000 of mortgage interest on a $400K loan, and $4,000 of charitable giving has $32,000 of itemized deductions — beating the $30,000 standard by $2,000. At a 24% marginal rate, that's $480 of federal tax savings. Worth itemizing.

Real-world example: who doesn't

A single renter in Texas (no state income tax) with $3,000 of charitable giving and $1,800 of medical that doesn't clear the 7.5% AGI floor has $3,000 of potential itemized deductions vs the $15,000 standard. Standard wins by $12,000 — about $2,640 of federal tax savings at the 22% bracket. Itemizing would actively cost money.

The SALT cap matters most

The $10,000 cap on state and local taxes — including state income, property, and sales tax combined — is the main reason itemizing got harder for high-tax-state residents. Pre-2018, a New Jersey homeowner might deduct $22,000 of SALT. Now it's $10,000 maximum. If you live in CA, NY, NJ, IL, or any other high-tax state, the cap is probably the single biggest reason you stopped itemizing.

Bunching charitable giving

If you're close to the itemizing threshold but never quite cross it, consider 'bunching' — giving two years of charity in one year, then nothing the next. Pair it with a donor-advised fund (Fidelity Charitable, Vanguard Charitable, Schwab Charitable) and you can deduct the full gift in year one and disburse it to charities over the next several years. This lets you alternate between itemizing big and taking the standard.

Above-the-line deductions still work

Some deductions don't require itemizing. Traditional IRA contributions, HSA contributions made outside payroll, student loan interest (up to $2,500), the deductible portion of self-employment tax, and educator expenses up to $300 are all 'above the line' — they reduce AGI directly, regardless of whether you itemize.

Let the calculator decide

The Tax Refund Optimizer compares both paths automatically when you enter your itemized estimate, and uses the better one in the final tax calculation. If standard wins, your itemized number is ignored. If itemized wins, the larger deduction flows through to your refund estimate.