Question

I forgot to claim a deduction on my prior year return. Can I amend prior year return on my return for this year?

Answer

You must file an amended 2017 return using Form 1040X.To claim a credit or credits for a deduction or deductions you failed to claim on an already filed return, you must file your 1040X within the later of:

  • Three years — including extensions — after the date you filed your original return
  • Two years after the date you paid your tax

You can’t e-file a 1040X, so you must mail it to the IRS.

Related Topics

Related Resources

Social Security & Taxable Income

Learn whether social security disability is considered taxable income with advice from the tax experts at H&R Block.

Spring Cleaning: Your Household Goods, Your Tax Deductions

Donating household goods to your favorite charity? Learn the ins and outs of deducting noncash charitable contributions on your taxes with the experts at H&R Block.

Free E-File Taxes – Learn How to e-File for Free

File free taxes online with H&R Block. File your tax return with free e-file and let our online tax preparation experts help you file your taxes.

What is the Saver’s Credit?

The Saver’s Credit is a special tax break for some taxpayers saving for retirement. Learn more about the Retirement Savings Contribution Credit at H&R Block