Standard Deduction

What is the standard deduction

The standard deduction is a fixed dollar amount the IRS lets taxpayers subtract from adjusted gross income before calculating tax. It is set each year by filing status and replaces itemizing individual expenses. Business owners who file personally, such as sole proprietors and pass-through owners, use it on their own return.

Key characteristics of the standard deduction:

• Amount depends on filing status and is adjusted annually for inflation

• Taken instead of, not in addition to, itemized deductions

• Requires no receipts or expense tracking

• Does not apply to business expenses, which are deducted separately on the business return or Schedule C

Standard deduction vs. itemized deductions

Taxpayers choose whichever method gives the lower taxable income. If total itemized deductions such as mortgage interest, state and local taxes, and charitable gifts exceed the standard amount, itemizing usually wins. Otherwise the standard deduction is simpler and often larger.

Why it matters for service firms

Founders of law firms, agencies, and consulting practices often pay personal tax on business profit. Knowing which deduction method applies helps with quarterly estimates and year-end tax planning. Confirm the current amounts and your best approach with your CPA.