Tax Deductions Cheat Sheet

Tax deductions and credits guide — common write-offs, itemized vs standard deduction, self-employment taxes, and strategies to legally reduce your tax bill.

Last Updated: July 15, 2025

Standard vs Itemized (2024)

Filing StatusStandard Deduction
Single$14,600
Married Filing Jointly$29,200
Head of Household$21,900

Common Itemized Deductions

DeductionLimits
Mortgage interestInterest on up to $750K of mortgage debt
State & local taxes (SALT)Capped at $10,000 — includes property + income/sales tax
Charitable contributionsUp to 60% of AGI for cash donations
Medical expensesAmount exceeding 7.5% of AGI

Self-Employed Deductions

DeductionDetails
Home office$5/sq ft simplified (max 300 sq ft) or actual expenses × business %
Health insurance100% of premiums for you + family — above-the-line deduction
Retirement (Solo 401k)Up to $69,000 (2024) — employee + employer contributions
Business expensesEquipment, software, travel, meals (50%), internet, phone
Pro Tip: The difference between a deduction and a credit: a deduction reduces taxable income (worth your marginal tax rate), a credit reduces taxes directly dollar-for-dollar. A $1,000 credit is ALWAYS better than a $1,000 deduction. Chase credits first.
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