Standard Deduction vs Itemized Deductions for H-1B Holders

Every H-1B filer must choose between two approaches to reducing taxable income: take the flat standard deduction, or add up actual qualifying expenses on Schedule A. Getting this choice right can save you hundreds of dollars. Getting it wrong — particularly if you are in dual-status for part of the year — can cause IRS issues.

How the Choice Works

When computing your federal taxable income, you subtract either the standard deduction or your total itemized deductions from your adjusted gross income (AGI). You cannot use both — you pick whichever gives you the larger deduction.

The standard deduction is a fixed amount set by Congress each year, adjusted annually for inflation. It requires no documentation and no receipts. Itemized deductions on Schedule A require you to add up specific expenses — state and local taxes, mortgage interest, charitable contributions, and unreimbursed medical expenses above a threshold — and claim only what you can substantiate.

The math is simple: if your itemized deductions exceed the standard deduction, itemize. Otherwise, take the standard deduction. In practice, the majority of H-1B holders take the standard deduction because the SALT cap and the absence of a mortgage in the early years of U.S. residency make itemizing difficult to justify.

Standard Deduction Amounts for TY2026

The standard deduction amounts for Tax Year 2026 (filed in spring 2027) are as follows. These are inflation-adjusted estimates based on IRS indexing; the IRS typically confirms final amounts in October or November of the tax year.

There is also an additional standard deduction for taxpayers who are 65 or older or blind: $1,600 per qualifying condition for married filers, $2,000 for single or head of household. This is rare for H-1B holders but worth noting.

Schedule A: What You Can Itemize

If you decide to itemize, you report qualifying expenses on Schedule A. The main categories are:

1. State and Local Taxes (SALT) — Capped at $10,000

You can deduct state and local income taxes (or state sales taxes, but not both) plus property taxes on your principal residence. The total SALT deduction is capped at $10,000 per return (same cap whether you file single or MFJ, which makes it particularly punitive for two-income couples). For H-1B holders in high-tax states like California or New York, this cap bites hard — you may easily pay $15,000 or more in state income tax, but only $10,000 is deductible.

2. Mortgage Interest

Interest paid on a mortgage for your primary residence (and one second home) is deductible, subject to a limit on the outstanding loan balance. For loans originated after December 15, 2017, the deductible portion is limited to interest on up to $750,000 of principal ($375,000 if MFS). For older loans, the limit is $1,000,000.

Your mortgage lender sends Form 1098 by January 31 showing the interest paid during the year. This is the primary document you need for mortgage interest deduction. Points paid on a purchase mortgage are also generally deductible in the year paid.

3. Charitable Contributions

Cash donations to U.S. 501(c)(3) organizations and non-cash property donations are deductible. Key rules: you need a written acknowledgment for any single donation of $250 or more. Non-cash donations over $500 require Form 8283. Donations to Indian charitable organizations are generally not deductible on a U.S. return (the India-U.S. tax treaty does not create a general charitable deduction for Indian NGOs). Donations to U.S. chapters of India-related organizations (like certain Hindu temples or Sikh gurdwaras with U.S. 501(c)(3) status) may qualify.

4. Medical and Dental Expenses

Only the portion of unreimbursed medical and dental expenses that exceeds 7.5% of your AGI is deductible. For a household with $150,000 AGI, that means the first $11,250 of medical expenses does not count. Only expenses above that threshold are deductible. This threshold makes the medical deduction irrelevant for most H-1B filers unless there was a major health event — a serious illness, surgery, or long-term care — during the year.

5. Casualty and Theft Losses

Under current law (post-TCJA), personal casualty and theft losses are only deductible if they arise from a federally declared disaster area. This is rarely relevant for H-1B holders.

When Does Itemizing Make Sense for H-1B Holders?

Run through this checklist. If you check at least two or three of these, it is worth calculating your Schedule A total before defaulting to the standard deduction.

• You own a home with a mortgage. If you bought a home in the U.S. and pay significant mortgage interest, this is usually the biggest itemized deduction. A $600,000 mortgage at 7% interest produces roughly $42,000 in first-year interest — well above the standard deduction on its own.
• You live in a high-tax state. California, New York, New Jersey, and Massachusetts residents will hit the $10,000 SALT cap on state taxes alone, contributing the maximum to their Schedule A.
• You make significant charitable donations. If you donate $5,000 or more to qualifying organizations, this adds meaningfully to your itemized total, especially combined with SALT and mortgage interest.
• You had large unreimbursed medical expenses. Most common in years with a serious illness, surgery, or new baby with NICU stay, where out-of-pocket costs may exceed the 7.5% AGI floor.

For a single H-1B holder earning $120,000 with no mortgage and living in Texas (no state income tax), the standard deduction of $16,100 will almost certainly win. For a married couple in California with a mortgage and two incomes, itemizing is often the better choice — but the SALT cap means you need to run the numbers explicitly.

H-1B-Specific Considerations

Dual-Status Filers: Itemizing Is Mandatory

If you arrived in the U.S. during the tax year and are filing a dual-status return — where you are a nonresident alien for part of the year and a resident alien for the rest — you cannot claim the standard deduction. The IRS requires dual-status filers to itemize. This is codified in IRC Section 873(b) and the Form 1040-NR instructions.

In practice, this means a first-year H-1B filer who arrived in, say, April will file a dual-status return covering the nonresident period (January through the day before green card effective date or SPT date) and the resident period (SPT date through December 31). The standard deduction is not available for such a return, and many software packages incorrectly apply it anyway.

No Deduction for Taxes Paid to India

You cannot deduct taxes paid to India on Schedule A. Foreign income taxes qualify as a credit (Form 1116) or a deduction — but even as a deduction, they would be reported on Schedule A Line 6, and only if you choose to deduct rather than credit. In almost every case, the foreign tax credit via Form 1116 is more valuable than the deduction, because a credit is a dollar-for-dollar reduction of U.S. tax while a deduction only reduces taxable income.

Indian Property Taxes Are Not Deductible

The SALT deduction on Schedule A only covers taxes paid to U.S. states and localities. Property taxes paid on a house in India, or income taxes paid to the Government of India, are not deductible on Schedule A. Foreign taxes go on Form 1116 as a credit.

Married Filing Separately and Itemized Deductions

If you file as Married Filing Separately (MFS) and your spouse itemizes deductions, you must also itemize — you cannot take the standard deduction if your MFS spouse itemizes. This is a trap to be aware of. Generally, MFS is disadvantageous for most H-1B couples, and the interaction with itemized deductions is one more reason to prefer MFJ where possible.

The Quick Calculation

Before deciding, add up your potential itemized deductions:

Compare your total against the standard deduction for your filing status. If itemized total > standard deduction, use Schedule A. Otherwise, take the standard deduction.

Common Mistakes

1. Claiming the standard deduction on a dual-status return. This is the most consequential error. If you are filing dual-status (your first year on H-1B after arriving mid-year), you must itemize. Using the standard deduction is incorrect and will need to be amended if caught.
2. Trying to deduct Indian property taxes. Property taxes paid on Indian real estate are not deductible on Schedule A. Foreign taxes go on Form 1116 as a credit, not Schedule A.
3. Forgetting the SALT cap applies per return, not per person. A married couple in California both paying state income tax does not get $20,000 in SALT deductions — the cap is $10,000 total per return, regardless of filing status.
4. Not getting written acknowledgment for charitable donations. Donations of $250 or more require a written acknowledgment letter from the charity. A credit card statement alone is insufficient for donations at or above this threshold.
5. Including premiums paid through an employer pre-tax plan in medical expenses. Health insurance premiums paid via payroll deduction (pre-tax) are already excluded from your W-2 wages. You cannot deduct them again on Schedule A.

How Our Platform Handles This

H1B TaxFile walks you through the standard vs. itemized decision as part of the filing wizard. After you enter your W-2, the platform asks about mortgage interest (from your 1098), state taxes paid, and charitable contributions. It then computes both options and selects the higher deduction automatically.

For dual-status filers — identified through the Substantial Presence Test step earlier in the wizard — the platform forces itemized deductions and explains why. You will not accidentally take the standard deduction on a dual-status return.

Related guides: Form 1040 for H-1B Holders | H-1B Tax Overview