I forgot to claim a deduction on my prior year return. Can I amend prior year return on my return for this year?
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.
Planning a working vacation? Your travel expenses may be tax deductible if your trip is mainly business-focused. Learn more with the experts at H&R Block.
Do you know which business travel expenses are eligible for deductions? Learn more about how to deduct travel expenses and get tax answers at H&R Bloc
Have a question about mileage deduction rules? Learn more from the tax experts at H&R Block.
What are the qualifications for the retirement savings contribution credit or savers credit? Learn more from the experts at H&R Block.