Standard deduction

Before you rely on it

What to check

Total your itemisable expenses and compare against the current standard amount for your filing status.

The common error

Where people go wrong with standard deduction

Making a charitable gift or a payment timing decision for the tax benefit without checking. Many households get no incremental benefit, and the decision was made on an advantage that did not exist.

Worked through

Standard deduction in plain numbers

Suppose the standard deduction for a single filer is $15,000, an illustrative figure, and your itemizable expenses, mortgage interest, state taxes and gifts, add up to $12,000. You take the standard deduction, since it is larger. If the itemized total were $19,000, itemizing would be better, and it would lower taxable income by an extra $4,000. At a 22% marginal rate that saves about $880; the choice is made each year, and the break-even point shifts with the size of the standard amount, which changes with inflation and law. Because it is large, many taxpayers no longer itemize at all.

Easily confused

Standard deduction and its neighbours

The standard deduction is not an exemption, a credit or an itemized deduction; it is a flat amount subtracted from income based on filing status. Itemized deductions are specific expenses you add up when they exceed it. Credits reduce tax directly, and exemptions, where they exist, reduce income per person, and some people are limited in claiming the standard amount, and extra amounts apply for age or blindness in some systems. The same idea appears in other countries as a personal allowance.

In real decisions

Where standard deduction turns up

Taxpayers compare their itemizable total with the standard amount each year to decide which route gives the lower tax; planners look at bunching deductions into alternate years to exceed the standard threshold. Payroll withholding assumes it; a tax calculator applies it automatically when estimating taxable income. Knowing the size of the standard amount helps when deciding whether a new expense will yield any tax benefit.

Know the edges

Where standard deduction stops being reliable

The amount, eligibility and rules change and depend on your jurisdiction and status. State returns may use a different standard amount. Some taxpayers must itemize in specific circumstances. This page is general information and not tax advice. Use current official figures or a qualified tax professional for your return.

Quick answers

What people ask about standard deduction

When should I itemize instead? When your deductible expenses total more than the standard amount. Add mortgage interest, taxes paid within limits and eligible gifts, and compare.

Does the standard deduction change every year? It is usually adjusted for inflation and can change with law. Use the amount for the tax year you are filing.

Do I need receipts for it? No. The standard deduction requires no documentation. Itemizing does.

Who cannot use the standard deduction? Rules differ, and some filers, such as those filing separately when a spouse itemizes, may be required to itemize. Check the current instructions.

Can I take the standard deduction and also deduct charity? In most systems, no, except for specific provisions in certain years. Standard and itemized deductions are alternatives.

Do I get an extra amount if I am older? Some systems add an amount for age or blindness. Check the current rules for your filing status.