CREDITS & DEDUCTIONS

Tax Deductions You Might Be Missing

A helpful list of common and less-obvious deductions that can lower your taxable income.

March 5, 2026CPA Contributor7 min read

Common Deductions to Review

The standard deduction is the simplest way to lower taxable income, but itemizing may be better if you have enough deductible expenses. Mortgage interest, state and local taxes, charitable donations, and qualified medical costs can add up quickly.

Common and Less-Obvious Deductions

Beyond the usual categories, certain educational expenses, retirement plan contributions, HSA deposits, and business-related costs may qualify for tax savings. If you work from home, the home office deduction may also apply when used correctly.

How Deductions Affect Your Tax Bracket

Reducing your taxable income can move you into a lower bracket or shrink the portion of income taxed at higher rates. This can have a bigger impact than simply reducing your owed amount dollar for dollar.

Supporting Documentation Matters

Save receipts, invoices, and records for all itemized deductions. The IRS expects documentation for charitable gifts, medical expenses, and business deductions, so good recordkeeping protects you in case of an audit.

Maximizing Deductions Year Over Year

Use our calculators to compare standard and itemized scenarios, and to decide whether accelerating deductions or spreading them across years is best. That approach can be especially valuable in years with high medical or deductible expenses.

Build a Tax-Smart Strategy

The best plan balances deductions, credits, and long-term savings goals. Use our tools to estimate your taxable income after deductions and see whether different strategies improve your overall after-tax outcome.