Tax Withholding Estimator
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Additional deductions
Estimate the amount of additional deductions that you and your spouse plan to take this year.
Whether you take the standard deduction or itemize, these deductions can further reduce how much of your income gets taxed.
Additional senior deduction
For 2025 through 2028, taxpayers who are age 65 and older can claim an additional deduction of up to
Learn more about the additional senior deduction.
Qualified business income (QBI)
If you or your spouse own a partnership, S-corporation, or are self employed, you may be able to claim a deduction if you have QBI in
Based on your answers, you and your spouse had a QBI of
Qualified business income (QBI) estimate
To estimate QBI, calculate:
- Expected business income for
- Minus ordinary business expenses (like rent, supplies, and employee benefits)
- Minus self-employment-related deductions (like self-employed health insurance premiums, contributions to self-employed retirement plans, and half of your self-employment tax)
Cash charitable contributions
When you take the standard deduction and donate to a qualifying organization in
Cash contributions include payments made by:
- Cash
- Check
- Electronic funds transfer or online payment service
- Debit or credit card
- Payroll deduction
- Transfer of gift card redeemable for cash
The estimator is using the standard deduction because it's higher than your itemized deductions. If you entered any itemized cash charitable contributions, enter those same contributions here.
Learn more about cash charitable contributions. (opens in a new tab)
Car loan interest deduction
If you or your spouse paid car loan interest in
To qualify for the deduction, the interest must be paid on a loan that:
- Originated in 2025 or later
- Is backed by a lien on the vehicle (a legal claim placed on the vehicle by the creditor to ensure payment)
- Is used to purchase a qualifying vehicle for personal use
A qualifying vehicle is a car, minivan, van, sport utility vehicle, pickup truck, or motorcycle that:
- Is new (not used)
- Went through final assembly in the U.S.
- Has a gross vehicle weight of less than 14,000 lbs.
- Is manufactured primarily for use on public streets, roads, and highways
Learn more about qualified car loan interest.
Check if your vehicle was assembled in the U.S.