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 2016 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

What documents are needed to itemize deductions on my tax return?

Find out what documents are needed to itemize deductions on your federal tax return with advice from the tax experts at H&R Block.

When claiming married filing separately; mortgage interest is deducted by one person or both people?

Learn more about claiming mortgage interest if you and your spouse are filing separately with advice from the tax experts at H&R Block.

I have a question related to resident alien taxes. What are the qualifications for resident aliens for tax purposes?

Learn more about resident alien taxes with advice from the tax experts at H&R Block.

How do I decide if I should claim standard deduction on my taxes or if I should claim itemized deductions?

Can you claim both a standardized deduction and itemized expenses? Learn more from the tax experts at H&R Block.