Commonly overlooked tax deductions include medical expenses, charitable contributions (even out-of-pocket costs and mileage), student loan interest, home office deductions, state and local taxes (SALT) up to the cap, energy credits for home improvements, and IRA contributions, with many taxpayers missing deductions for things like reinvested dividends or jury duty pay given to an employer.
What does the IRS allow you to deduct (or “write off”) without receipts?
The biggest tax mistakes people make include filing late, math errors, incorrect personal info (like Social Security numbers), forgetting deductions/credits (like EITC), misreporting income, not signing forms, and making errors with bank details for direct deposit, all leading to delays, penalties, or missed savings, with using tax software or professionals helping avoid these common pitfalls.
The IRS allows taxpayers to deduct up to $3,000 of realized investment losses ($1,500 if married filing separately) against ordinary income each year. This deduction applies only to losses in taxable investment accounts and must be realized by December 31st to count for that tax year.
The section 179 deduction allows taxpayers, other than trusts and estates, to elect to expense a specified amount of the cost of qualifying property purchased for use in a business. For tax years beginning in 2026 the maximum deduction is $2,560,000, (2025, the maximum deduction is $2,500,000).
What are the most common tax deductions people claim?
The IRS $600 rule refers to a change in reporting requirements for third-party payment apps (like Venmo, PayPal) for taxable income from goods and services, where platforms must send a Form 1099-K if you receive over $600 in a year, intended to capture gig economy/side hustle income, though delays and phased implementation have adjusted the timeline, with current rules for 2024 using a higher threshold ($5,000) before fully phasing to $600 for future years, but remember all taxable income, regardless of form, must always be reported.
You might be surprised to learn that simple business expenses like your cellphone bill or your new computer can be deducted from your taxable income. In fact, there are some fully-deductible expenses such as advertising and marketing costs, employee education and training, and certain legal fees.
Ensure you claim deductions for any of the following costs incurred this year:
10 of the Largest Tax Breaks Explained
Who Is Audited More Often? Oddly, people who make less than $25,000 have a higher audit rate. This higher rate is because many of these taxpayers claim the earned income tax credit, and the IRS conducts many audits to ensure that the credit isn't being claimed fraudulently.
The "$1000 instant tax deduction" refers to a proposed Australian tax policy, specifically from the Albanese Labor government in 2025, allowing eligible workers to claim a flat $1,000 deduction for work-related expenses without needing receipts, simplifying tax returns for those with lower expenses but potentially costing those with higher expenses, starting from 1 July 2026. It's an option to replace itemised work-related deductions, not an extra refund, and doesn't affect non-work-related deductions like charity.
One-time forgiveness, officially known as First-Time Penalty Abatement (FTA), is an IRS program that allows qualified taxpayers to have certain penalties removed from their tax accounts.
The 5 Cs of audit (Criteria, Condition, Cause, Consequence, Corrective Action) are a framework for structuring clear, actionable audit findings, explaining what should be (Criteria), what is found (Condition), why it happened (Cause), what the impact is (Consequence/Effect), and how to fix it (Corrective Action/Recommendation) to drive organizational improvement and compliance.
The 10 Most Overlooked Tax Deductions
Common Tax Deductions You Can Claim Without Receipts
Yes — according to Section 179 of the IRS tax code, small businesses can write off the full purchase price of new and used machines for the year they purchased them. This allows business owners to save a significant amount of money in taxes and reinvest that money back into their businesses instead.
If the vehicle weighs more than 6,000 pounds and is used more than 50% for business, you can write off up to $28,900 in the first year, and potentially even more with bonus depreciation. Let's break it down: Buy a qualifying vehicle for $60,000, and you could write off a large portion of that cost in year one.
The 150% reducing balance method divides 150 percent by the service life years. That percentage will be multiplied by the net book value of the asset to determine the depreciation amount for the year.