We bought a vehicle in 2018, but we forgot to claim the sales tax on our 2018 return. Can we claim the tax on our 2019 return or are we required to file an amended tax return form? Would we use Form 1040X?

Get the facts from H&R Block about IRS revenue agents. If your audit letter is signed by a revenue agent, the audit is likely to be complex.

Learn more about the health insurance penalty and what fees you risk incurring with advice from the tax experts at H&R Block.

Get the facts from H&R Block about releasing a federal tax lien from your property after you've paid your IRS tax balance.

Learn about IRS Form 14039, Identity Theft Affidavit, which notifies the IRS about your identity theft issue and helps protect your account going forward.