Claiming a parent or other adult as a dependent

How it works

The person claimed must either be a relative on the IRS list, such as a parent, grandparent, sibling, or in law, or must have lived in the taxpayer's home all year. Their gross income for the year must be below this year's official qualifying relative gross income limit (not yet verified here; see the official source below), and Social Security benefits that are not taxable do not count toward that line. The taxpayer must have provided more than half of the person's total support, counting food, housing, medical costs, and similar items, with the fair rental value of a room counted as support. When several siblings together support a parent and no one alone pays more than half, they can sign a multiple support agreement that lets one of them claim the parent in a given year. The person cannot be a qualifying child of anyone else.

What it gives

It opens the credit for other dependents and can support head of household status.

A parent in a care facility can still be claimed if the support and income tests are met.

Medical costs paid for a dependent parent can be included in the taxpayer's medical expense deduction.

What it costs, or where the catch is

The gross income line is low, and a parent with a pension or taxable benefits often passes it.

Proving more than half of support requires adding up everything the parent spent from all sources.

Only one person can claim the parent, so siblings who split support evenly have to agree each year.

A worked example

Hank's mother lives with him and has $9,000 a year in Social Security, none of it taxable. Her total support for the year is $30,000, counting the $12,000 fair rental value of her room, her $6,000 of food and utilities, and $12,000 of medical bills. Hank pays $21,000 of that and she pays $9,000 from her benefits. He paid 70 percent, since $21,000 divided by $30,000 is 0.70, so he passes the support test and can claim her.

Where it goes wrong

The common error is counting a parent's untaxed benefits as zero when adding up what the parent paid for their own support, which overstates the taxpayer's share.

Who confirms it for you

For your own numbers, a CPA or enrolled agent. This page explains how the rule works for people in general; it does not know your situation and does not tell you what to do.

The official source

IRS Publication 501, Dependents, Standard Deduction, and Filing Information. Every figure that changes by year comes from the site's rules table, which the watcher checks against the official page on a schedule; where a figure is not yet verified, this page says so instead of printing a number.