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Request copies of an original or a correct determination letter in writing by mail or fax.

Frequently asked questions regarding governmental plan determination letters.

Letter 4310C is telling you someone may have attempted to impersonate you by using your name and Social Security number (SSN).

October 4, 2022 — The IRS will begin mailing letters in October on behalf of the Center for Medicare & Medicaid Services, sharing information about obtaining Marketplace healthcare coverage.

We received your federal income tax return, but we need more information to verify your identity in order to process your tax return accurately. The contact information below is only for taxpayers who received Letter 5747C.

We received a frivolous tax return where there’s no basis in the law for the position or there’s an attempt to delay or impede administration of the tax laws.

To continue processing your tax return, we need you to verify your identity and your tax return.

Understanding Your Letter 4281C

We’ve scheduled a meeting to discuss unfiled tax returns and any unpaid balance you may owe. We’ve assigned a date, time, and location for the meeting.

You received this letter because we determined that your withholding doesn’t comply with our guidelines. If you do a correction now, you will avoid receiving a lock-in letter in the future that tells your employer to increase your withholding rate. You can disregard this letter if you already corrected your W-4.