What actually changes your refund amount

Your refund gets larger when you pay more tax during the year than you owe, or when you claim deductions and credits that reduce what you owe. The IRS does not decide to give you more money — it returns the overpayment you made through paychecks or estimated tax payments. To get a bigger refund, you either need to have withheld more from your paychecks, or you need to reduce your taxable income or tax bill through deductions and credits you may have missed.

Most people do not realize they are leaving money on the table because they do not claim everything they are may have access to to. The difference between a small refund and a large one often comes down to knowing what the IRS allows you to subtract from your income or your tax bill.

Key Takeaways

  • Adjusting your W-4 form at work to withhold more tax from each paycheck will result in a larger refund when you file, though you will have less money in your pocket during the year.
  • Tax deductions reduce your taxable income, and the standard deduction is available to everyone, but itemized deductions can be larger if you own a home, pay student loan interest, or have significant medical expenses.
  • Tax credits directly reduce the tax you owe dollar-for-dollar, and many people miss credits for children, education, or earned income that could add hundreds or thousands to their refund.
  • Self-employed people and gig workers can deduct business expenses that employees cannot, which can substantially lower their taxable income and increase their refund.
  • Claiming dependents, reporting all income sources, and reviewing your filing status each year are straightforward steps that often uncover refund increases.

Increasing withholding through your W-4 form

The simplest way to may provide a larger refund is to have your employer withhold more tax from your paychecks. You do this by filling out a new W-4 form — the same form you completed when you started your job. You can submit an updated W-4 to your payroll department at any time, and the change takes effect on your next paycheck.

The W-4 has a worksheet that helps you calculate how much to withhold based on your income, family situation, and other jobs. If you want a simpler approach, you can just increase the number in the "extra withholding" box at the bottom — adding $25 or $50 per paycheck will noticeably increase your refund. The trade-off is that you will have less money to spend each month, so this works best if you struggle to save and want the IRS to hold money for you until tax time.

You can find the current W-4 form and worksheet on the IRS website. If your situation changed — you got married, had a child, or took a second job — updating your W-4 is often the fastest way to adjust your refund.

Using the standard deduction versus itemizing

Everyone gets to subtract a standard deduction from their income before calculating tax. For 2024, the standard deduction is $14,600 for single filers and $29,200 for married couples filing jointly, though these amounts change each year. You do not have to do anything to claim it — the IRS automatically subtracts it when you file.

If your deductible expenses are larger than the standard deduction, you can itemize instead, which means listing out specific expenses like mortgage interest, property taxes, charitable donations, and medical costs. Itemizing requires more record-keeping, but it can lower your taxable income more than the standard deduction. For example, if you own a home and pay $15,000 in mortgage interest and property taxes combined, itemizing would save you more than taking the standard deduction.

Most people benefit from the standard deduction because it is simpler and large enough for their situation. But if you own a home, paid significant state or local taxes, had large medical bills, or made substantial charitable donations, itemizing might increase your refund. You can calculate both ways and choose whichever is larger.

Tax credits that directly reduce what you owe

A tax credit is different from a deduction — it subtracts directly from your tax bill rather than from your income. A $1,000 credit saves you $1,000 in tax, while a $1,000 deduction saves you tax only on that $1,000 (usually $100 to $240 depending on your tax bracket). This makes credits extremely valuable for increasing your refund.

The Earned Income Tax Credit (EITC) is one of the largest. If you work and earn below a certain income threshold, you may be may have access to to this credit even if you owe no tax — it can result in a refund of several hundred to several thousand dollars. The income limits and credit amounts vary by filing status and number of dependents.

The Child Tax Credit provides $2,000 per child under age 17 if you claim them as a dependent. The American Opportunity Credit covers up to $2,500 of education expenses per student per year if you or a dependent attended college. The Lifetime Learning Credit covers up to $2,000 of education expenses for other situations. The Dependent Care Credit helps if you paid for childcare so you could work. Many people file without claiming these credits straightforward because they do not know they exist.

Deductions for self-employed and gig workers

If you are self-employed, work as a contractor, drive for a rideshare service, or earn income outside a traditional job, you can deduct business expenses that regular employees cannot. These deductions can substantially reduce your taxable income and increase your refund.

Common deductions include a portion of your home rent or mortgage (if you use a dedicated workspace), internet and phone bills, vehicle mileage or fuel, supplies, equipment, professional services, and health insurance premiums you pay yourself. You do not need receipts for mileage — the IRS allows a standard mileage rate (which changes yearly) for business driving. For other expenses, keep receipts and a record of what the expense was for.

Self-employed people also pay both the employee and employer portion of Social Security and Medicare tax, but you can deduct half of this on your tax return, which further reduces your taxable income. If you have not been claiming these deductions, going back and filing amended returns for prior years may result in refunds you did not receive.

Claiming dependents and reviewing your filing status

Each dependent you claim — a child, parent, or other relative who lives with you and depends on you for support — reduces your taxable income by a set amount. For 2024, each dependent reduces your income by $4,700. If you have a child or support an aging parent, make sure you are claiming them on your return.

Your filing status also affects your refund. Married filing jointly usually results in a lower tax rate than married filing separately, so if you are married, filing jointly typically increases your refund. If your marital status changed during the year — you got married or divorced — you may be able to file under a different status, which can change your refund significantly.

Review your filing status and dependent claims each year, especially after major life changes. A child turning 17, a dependent moving out, or a marriage or divorce can all shift your refund.

Reporting all income and correcting prior mistakes

Your refund shrinks if you forget to report income. The IRS receives copies of W-2 forms from your employers and 1099 forms from clients or investment accounts, so unreported income will eventually be caught. Reporting all income upfront prevents penalties and interest charges later.

If you filed in prior years and did not claim deductions or credits you were may have access to to, you can file an amended return using Form 1040-X for up to three years back. For example, if you did not claim the Earned Income Tax Credit in 2022 or 2023, you can file an amended return and receive the refund you missed. This is one of the most overlooked ways to increase your refund.

Similarly, if you had too much tax withheld in a prior year and received a small refund, you can adjust your W-4 now to prevent the same overpayment this year.

Frequently Asked Questions

Is it better to get a big refund or adjust my withholding so I take home more pay?

That depends on your situation. A large refund means the IRS held your money interest-free all year, which some people use as forced savings. But if you need that money for bills or emergencies, adjusting your W-4 to withhold less and take home more each paycheck is smarter. You can always save the difference yourself.

Can I claim a deduction for something I already claimed last year?

Yes, if the expense happened this year. Deductions are annual — mortgage interest you paid in 2024 is deductible on your 2024 return, and interest you pay in 2025 is deductible on your 2025 return. Do not claim the same expense twice on the same return.

What if I made a mistake on last year's return and got a smaller refund than I should have?

You can file an amended return on Form 1040-X within three years of the original filing date. If you missed a deduction or credit, the amended return will calculate the additional refund you are owed. The IRS typically processes amended returns within 16 weeks.

Do I have to choose between the standard deduction and itemizing, or can I do both?

You choose one or the other — you cannot claim both on the same return. Calculate your total itemized deductions and compare it to the standard deduction for your filing status. Whichever is larger is the one you should use.

If I am claimed as a dependent on my parents' return, can I still get a refund?

Yes, but your standard deduction is limited. If your only income is from a job, your standard deduction is the smaller of your earned income plus $450, or the full standard deduction amount. You may still receive a refund if tax was withheld from your paychecks, even if your standard deduction is reduced.