The most common itemized deductions include State & Local Taxes (SALT), Mortgage Interest, Charitable Contributions, and Medical & Dental Expenses (above a certain AGI threshold), with taxpayers choosing to itemize if these expenses exceed their Standard Deduction for their filing status. Other popular deductions involve student loan interest, educator expenses, and certain casualty/theft losses, though the higher standard deduction since 2018 has reduced overall itemizers.
If you itemize, you can deduct these expenses:
The most common itemized deductions are those for state and local taxes, mortgage interest, charitable contributions, and medical and dental expenses. The combined revenue cost of those four deductions is around $118 billion for fiscal year 2024 (table 1).
For the 2025 tax year, the basic Standard Deduction is $15,750 for Single filers and married taxpayers who file separate returns (up from $14,600 for 2024), while married couples filing jointly and qualifying surviving spouses can deduct an amount twice that size at $31,500 (up from $29,200 for 2024).
20 Common Tax Deductions: Examples for Your Next Tax Return
Many business expenses are 100% deductible, including advertising, employee wages, rent, supplies, and certain business meals like company parties or meals for the public, while personal deductions like student loan interest or charitable donations (depending on the type) can also be fully deductible for individuals. The key is that the expense must be "ordinary and necessary" for your trade or business or meet specific IRS criteria, often differentiating from the 50% rule for client meals.
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.
Common Tax Deductions You Can Claim Without Receipts
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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.
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.
To maximize your deductions, you'll have to have expenses in the following IRS-approved categories:
SPECIAL ALLOWABLE ITEMIZED DEDUCTIONS AND NET OPERATING LOSS CARRY-OVER (NOLCO) Cartina, Shyra Gayle D. BSA-2 Cascano, Regine BSAIS-2. I. OVERVIEW Special deductions are other items of deductions which may or may not partake the nature of an expense, but are allowed by the NIRC or by special laws as deductions.
Wages, dividends, bank interest, and other income received and that was reported on an information return should be entered carefully. This includes any information needed to calculated credits and deductions.
You can write off common expenses like student loan interest, retirement contributions (IRA/401k), self-employed health insurance, and business-related costs (home office, mileage, supplies) if you're an employee or self-employed, but itemizing deductions for things like medical expenses (over 7.5% AGI), mortgage interest, and charitable donations only pays off if it exceeds the Standard Deduction. Self-employed individuals have many more write-offs, including professional dues, business meals, and equipment, but always keep meticulous records.
Cell phones and internet deductions
The answer is, you have to prorate the expense and only deduct the business use portion. So if 30% of your calls are personal, for example, you can only deduct 70% of the phone's expense.
The $20,000 limit under the measures applies on a per asset basis, so small businesses can instantly write off multiple assets. Assets valued at $20,000 or more can continue to be placed into the small business pool and depreciated at 15% in the first income year and 30% each income year after that.
Yes, health insurance premiums can be tax deductible, but it depends on how you pay for them; self-employed individuals have specific deductions (Self-Employed Health Insurance Deduction), while others might deduct premiums as itemized medical expenses if they exceed 7.5% of their AGI, or benefit from pre-tax treatment through an employer plan, but you can't double-dip deductions.