How far back can you claim taxes?
Mia Ramsey
Published Apr 21, 2026
three years
In most cases, an original return claiming a refund must be filed within three years of its due date for the IRS to issue a refund. Generally, after the three-year window closes, the IRS can neither send a refund for the specific tax year.
Do you have to claim a certain age on your taxes?
To meet the qualifying child test, your child must be younger than you and either younger than 19 years old or be a “student” younger than 24 years old as of the end of the calendar year. There’s no age limit if your child is “permanently and totally disabled” or meets the qualifying relative test.
Can a 17 year old file a tax return?
If my 17 year old son has to file a tax return to a refund, can I still claim him as a dependent on my return? If your dependent has a W-2 for his after-school job, etc. you do not include the information on your own return. You can still claim your child as a dependent on your own return.
How old do you have to be to claim your child on taxes?
You can claim your child until age 24 if he goes to college, but he must attend full time. Taking a class now and again won’t earn you a dependent exemption. He must also attend five months out of the tax year to qualify.
When do I have to file my tax return?
If you are due a refund for withholding or estimated taxes, you must file your return to claim it within 3 years of the return due date. The same rule applies to a right to claim tax credits such as the Earned Income Credit.
Can a 18 year old claim himself on his taxes?
Your 18 year old cannot claim himself. The IRS rule is if he CAN be claimed on another person’s return he cannot claim his own exemption. If your dependent has a W-2 for his after-school job, etc. you do not include the information on your own return. You can still claim your child as a dependent on your own return.