The biggest refund comes from claiming every deduction and credit you actually may have access to for, not from tricks or shortcuts

Your refund size depends on two things: how much tax you overpaid during the year, and whether you claim all the deductions and credits the tax code allows you. Most people leave money on the table because they miss credits they didn't know existed or deductions they thought didn't apply to them. The IRS won't tell you about them — you have to find them yourself or work with someone who knows where to look.

A larger refund is not always better. A refund means the government held your money interest-free all year. If you want to maximize what you keep, you might actually want a smaller refund and a bigger paycheck each month. But if you're getting a refund anyway, the goal is to make sure it's the right size — not inflated by mistakes, and not reduced because you missed something you were may have access to to claim.

Key Takeaways

  • The Child Tax Credit, Earned Income Tax Credit, and education credits are the largest refunds most people miss, and they require specific forms and proof of expenses or income.
  • Deductions for student loan interest, educator expenses, and self-employment losses can reduce your taxable income even if you take the standard deduction.
  • Working with tax software that asks detailed questions about your life — dependents, education, home ownership, side income — catches more credits than filing by hand.
  • If you made less than a certain amount (varies by filing status and year), you may owe nothing and still get a refund through refundable credits.
  • Keeping receipts, 1099 forms, and proof of major expenses throughout the year makes claiming deductions faster and reduces the chance of an audit.

Credits that return money even if you owe no tax

A refundable credit can give you money back even if you paid no tax at all. The most common are the Earned Income Tax Credit (EITC) and the Child Tax Credit. These are not deductions — they come off your tax bill dollar for dollar, and if the credit is larger than what you owe, the IRS sends you the difference.

The EITC is for people with low to moderate income who work. The amount depends on your income, filing status, and whether you have children. A single parent with one child might receive $3,000 to $3,500; the exact number changes each year and varies by state if your state offers its own version. You must file a tax return to claim it, even if you owe nothing.

The Child Tax Credit gives you money for each dependent child under 17. Part of it is refundable — meaning you get cash back — up to a limit that changes yearly. You need the child's Social Security number and proof of relationship (birth certificate, adoption papers, or court order). If you claimed a child who is not actually your dependent, the IRS will catch it and you'll owe the money back plus penalties.

Education credits and deductions that work together

If you or a dependent paid for college, you may claim the American Opportunity Tax Credit, the Lifetime Learning Credit, or the Saver's Credit. These are not the same thing, and you can only claim one per student per year. The American Opportunity credit is larger but has stricter income limits and only covers the first four years of college. The Lifetime Learning Credit has no year limit and higher income thresholds.

You'll need Form 1098-T from the school showing what you paid for tuition and fees. Room and board don't count. If the school didn't send you a 1098-T, contact the registrar's office — you can still claim the credit with your own records, but having the form makes it cleaner.

Separately, you can deduct up to $2,500 in student loan interest you paid during the year, even if you take the standard deduction. This is not a credit; it reduces your taxable income. You'll get a 1098-E from your loan servicer in January showing how much interest you paid.

Deductions you can claim on top of the standard deduction

Most people take the standard deduction — a flat amount that reduces your taxable income. For 2024, it's $14,600 for single filers and $29,200 for married couples filing jointly. You don't itemize; you just subtract that number from your income.

But certain deductions work alongside the standard deduction. Student loan interest (covered above) is one. Others include educator expenses (up to $300 per year if you're a teacher), self-employment tax (half of what you paid), and contributions to a traditional IRA or HSA. These are called above-the-line deductions, and they reduce your taxable income before you even apply the standard deduction.

If you're self-employed, you can deduct business expenses — office supplies, equipment, mileage, a portion of your home if you have a dedicated workspace. Keep receipts and a mileage log. The IRS allows a standard mileage rate (it changes yearly) if you don't want to track actual gas and maintenance costs.

When to itemize instead of taking the standard deduction

If your deductible expenses — mortgage interest, property taxes, charitable donations, medical bills over 7.5% of your income — add up to more than the standard deduction, itemizing might give you a larger refund. This is rare for most people now, because the standard deduction is high and the cap on state and local tax deductions is $10,000.

To know whether to itemize, add up: mortgage interest (from your 1098 form), state and local taxes paid (up to $10,000), charitable donations (with receipts), and medical expenses over 7.5% of your adjusted gross income. If the total exceeds the standard deduction for your filing status, itemize. If not, take the standard deduction and claim the above-the-line deductions instead.

Itemizing requires Schedule A, which takes longer to prepare. Most tax software will calculate both ways and tell you which is larger.

Tax software that asks the right questions

Free tax software from the IRS (IRS Free File) or from companies like TurboTax, H&R Block, and TaxAct asks you questions about your life — dependents, education expenses, home ownership, side income, charitable giving. The more detailed the questions, the more credits and deductions the software can find. If the software doesn't ask about something, you might miss it.

Paid software is not always better than free software; it depends on how complex your situation is. If you have W-2 income only, no dependents, and no major deductions, free software is fine. If you have self-employment income, rental property, education expenses, or multiple dependents, paid software or a tax professional may catch things free software misses.

When you use software, answer every question, even if it seems unrelated to your refund. Questions about charitable donations, energy-efficient home improvements, or adoption expenses unlock credits you might not think to claim.

Records to keep so you don't lose money to an audit

The IRS can audit your return up to three years after you file (six years if you underreported income by 25% or more). If you claim a deduction or credit and can't prove it, you lose it and may owe penalties. Keep receipts, invoices, bank statements, and 1099 forms for at least three years.

For education credits, keep the 1098-T and your own records of what you paid. For charitable donations, keep receipts or bank statements showing the donation and a written acknowledgment from the charity if the donation was $250 or more. For business expenses, keep receipts and a log showing what the expense was for and when you incurred it. For medical expenses, keep receipts and an explanation of what the expense was.

If you file electronically and the IRS asks for proof, you can usually send it by mail or upload it to your IRS account online. Having it ready before you file saves time if you're selected for an audit.

Frequently Asked Questions

Can I claim a credit or deduction if I don't have a receipt?

It depends on the credit. For education credits, the 1098-T is the primary proof, but you can use your own records if the school didn't send one. For charitable donations over $250, you need a written acknowledgment from the charity. For business expenses, the IRS expects receipts, but if you lost them, a bank or credit card statement showing the charge can help. Keep what you have and be honest about what you're claiming.

What if I made money from a side job or gig work?

You must report all income, including 1099 income from freelance work, gig platforms, or selling items online. You can deduct business expenses against that income — supplies, equipment, mileage, a portion of your home office. If your net profit is $400 or more, you also owe self-employment tax. File Schedule C to report the income and expenses, and use Schedule SE to calculate self-employment tax.

Does a larger refund mean I did my taxes right?

Not necessarily. A large refund means you overpaid tax during the year, which is money the government held without paying you interest. If you want to keep more money each month, you can adjust your W-4 with your employer to reduce withholding. But if you're getting a refund anyway, make sure it's because you claimed every credit and deduction you're may have access to to, not because you made a mistake.

Should I pay someone to do my taxes if I think I'm missing credits?

A tax professional can find credits and deductions you might miss, especially if your situation is complex — self-employment income, rental property, education expenses, or multiple dependents. The cost (usually $150 to $500) might be worth it if the professional finds credits worth more than that. But good tax software also asks detailed questions and can catch most credits if you answer honestly.

What if I claimed something wrong and already filed?

You can file an amended return using Form 1040-X within three years of the original filing date. If you claimed a credit you weren't may have access to to, the IRS will catch it eventually and send you a bill for the refund plus interest and penalties. It's better to amend voluntarily before they contact you. File the amended return as soon as you realize the mistake.