What do people forget to claim on taxes?

People frequently overlook several common deductions and credits when filing their taxes.

🔎 Most Overlooked Tax Breaks

• State Sales Tax: You can deduct actual local sales tax or use IRS tables. This is helpful in states without an income tax.
• Student Loan Interest: Deduct up to $2,500 even if a parent or relative paid it.
• Charitable Mileage and Costs: Track driving miles for volunteer work at 14¢ per mile.
• Out-of-Pocket Educator Expenses: Teachers can deduct up to $300 or $350 for classroom supplies.
• Earned Income Tax Credit (EITC): Millions of eligible lower-income workers miss this refundable credit.
• Reinvested Dividends: Forgetting these increases your cost basis, leading to accidental double taxation later.
• Medical Mileage: Miles driven to doctor visits count toward medical deductions if itemizing.

💡 Strategy and Execution

• Check Above-the-Line Deductions:
  • Claim things like HSAs or traditional IRAs without needing to itemize.
• Review State vs. Local Options:
  • Choose between state income tax or major sales tax deductions.
• Save Small Receipts:
  • Keep track of small charitable cash gifts, parking fees, and medical travel records.

The 10 most commonly overlooked tax deductions include everyday expenses, state taxes, and specific out-of-pocket costs that taxpayers frequently forget to claim.

Top 10 Overlooked Tax Deductions

• State Sales Taxes: You can choose to deduct state and local sales taxes instead of state and local income taxes, which is especially helpful if you live in a state without an income tax or made a large purchase like a car.
• Out-of-Pocket Charitable Contributions: Expenses incurred while doing volunteer work—such as parking fees, tolls, and charitable driving mileage (valued at 14 cents per mile)—are deductible.
• Student Loan Interest Paid by Others: If a parent or someone else pays your student loan, you can still claim the deduction on your taxes as long as you are the person legally required to repay the loan.
• Jury Pay Turned Over to Employer: If your employer kept your daily jury duty pay while you used your paid time off, you can deduct the amount you turned over to them from your taxable income.
• Refinancing Mortgage Points: When you refinance a mortgage, you cannot deduct all the points in a single year; instead, you must deduct them gradually (amortize them) over the life of the new loan.
• State Income Tax Paid in Spring: Any state income tax you paid in the spring of the filing year for a prior year's return can sometimes be added to your itemized deductions.
• Educator Expenses: Eligible K-12 teachers can deduct out-of-pocket spending on classroom supplies and books.
• Gambling Losses: If you itemize your deductions, you can deduct gambling losses up to the total amount of your reported gambling winnings.
• Moving Expenses for Military: While civilian moving expense deductions are largely paused, active-duty military members moving under orders for a permanent change of station can still deduct qualified moving costs.
• Alimony Paid: If your divorce agreement was finalized on or before December 31, 2018, the alimony payments you make to a former spouse remain tax-deductible.

You can review more details and advice on maximizing your return with tools like the TurboTax Tax Tips Guide or general filing info from H&R Block Tax Center.

Many valuable tax write-offs are missed each year, spanning charitable acts, medical care, and everyday employment or investment adjustments.

Charitable and Volunteer Deductions

• Volunteer mileage: Driving your personal car for charity work can be deducted at 14 cents per mile.
• Out-of-pocket charity costs: Expenses paid while doing volunteer work—like buying supplies for a bake sale or uniforms—are deductible.
• Exchange student hosting: You can deduct up to $50 per month for hosting a qualified student through an organization.

Medical and Health Write-Offs

• Medical travel: Mileage for driving to doctor appointments, parking, and public transit costs count as medical expenses if you itemize.
• Medicare and insurance premiums: Unreimbursed health insurance, long-term care, and certain Medicare premiums qualify if total medical costs exceed 7.5% of your AGI.
• Specialized equipment and schooling: Costs for hearing aids, vision care, dental work, and special schools for disabled dependents are deductible.
• Health Savings Account (HSA): Contributions made to an HSA lower your taxable income and grow tax-free.

Taxes and Investment Expenses

• State sales tax choice: You can choose to deduct state and local general sales taxes instead of state income taxes.
• Previous year's state tax due: State income tax paid in the spring for the prior year can often be deducted on your federal return.
• Refinancing mortgage points: Points paid when refinancing a mortgage must be amortized over the life of the loan rather than deducted all at once.
• Early withdrawal penalties: Financial penalties paid for withdrawing from a certificate of deposit (CD) early are fully deductible.

Miscellaneous and Work-Related

• Student loan interest paid by others: You can deduct up to $2,500 in student loan interest even if a relative or another person made the payment.
• Jury pay given to an employer: If your employer requires you to turn over your jury duty pay while on paid leave, you can deduct that amount.
• Educator out-of-pocket expenses: Teachers can deduct up to $300 for classroom supplies they buy themselves.
• Gambling losses: You can write off losses up to the total amount of your reported gambling winnings.

You can check out further breakdowns on H&R Block or review comprehensive resources via Jackson Hewitt.

You can write off unusual or surprising expenses on your taxes if they qualify as legitimate business costs, medical care, or charitable contributions.

Unusual Business Write-Offs

If you are self-employed or run a business, ordinary and necessary costs can sometimes include surprising items:

• Guard animals or pest-control cats: If you keep a guard dog to protect your business property or a cat to catch rats in your warehouse, their food and vet care can be written off as business expenses.
• Baking ingredients for charity events: If you make cupcakes or food for a qualified charity fundraiser, the cost of the raw ingredients is deductible.
• Fostering rescue animals: Unreimbursed expenses like pet food and vet care for a foster animal from a qualified 501(c)(3) rescue organization can count as charitable deductions.
• The cost of a swimming pool: If a doctor prescribes a pool for a medical condition (like severe arthritis) and you use it exclusively for therapy, a portion of the installation and maintenance costs can qualify as a medical expense.

Lesser-Known Personal Deductions

Certain niche situations or specific activities qualify for federal tax breaks:

• Bad debt: If you loaned money to someone with a formal agreement and it was never paid back, you can write off up to $3,000 of bad non-business debt if you can prove you tried to collect it.
• Jury duty pay turned over to an employer: If your employer kept paying your normal salary while you served on a jury and you had to hand your jury pay over to them, you can deduct that amount.
• Volunteer driving: You can deduct 14 cents per mile driven when using your personal vehicle for charitable or volunteer work.

For more strange historical examples and rules, check out the AARP Weird Tax Breaks Guide or details from Baum CPA. Always keep clear receipts and records to back up any unusual claims.

The biggest tax mistakes involve simple math, clerical errors, and omitting side income that delay refunds or trigger audits.

✅ Math and Clerical Errors

• Simple miscalculations: Double digits or addition errors throw off processing.
• Solution: Use certified software like TurboTax or TaxAct to automate math.
• Incorrect ID numbers: Misspelled names or wrong Social Security numbers stall acceptance.
• Solution: Match numbers directly against physical Social Security cards.

⚠️ Omission of Secondary Income

• Forgetting side gigs: Leaving out 1099s from freelance or gig work invites an IRS notice.
• Solution: Keep a running year-round spreadsheet of all payment platforms.
• Omitting investment earnings: Forgetting dividends, interest, or crypto sales costs money and triggers flags.
• Solution: Wait for all 1099 forms to arrive before submitting.

💡 Premature Filing and Missing Paperwork

• Filing too early: Submitting before late-arriving W-2s or amended documents arrive forces an amendment.
• Solution: Verify all expected income documents are accounted for.
• Wrong direct deposit info: Typos in routing or account numbers delay refunds significantly.
• Solution: Cross-check numbers with a voided check or bank portal.