What should a taxpayer do after receiving a threatening letter from the IRS?

Even though most IRS offices are still closed due to COVID-19, some letters, computer generated and otherwise, are still being sent. When a person receives any Notice from the IRS, here are several things he can do: (1) Don’t panic.  Many times the Notice is merely asking for information or telling you of a balance due. (2) Do not ignore it or throw it away.  That will not help because the IRS considers the letter delivered when mailed, not when received. If certified, pick it up from the post office. (3) Read the Notice – it will provide specific instructions on how to answer the Notice. (4) If the Notice states your return is being changed, you will have an opportunity to dispute the change in writing, providing supporting documents. (5) Any time you disagree with an IRS Notice, you will have a time period in which to appeal the Notice.