IRS Letters and Forms
Letters

IRS letters by number

Find the letter number on your letter, such as 147C, then open its page.

Letters

  • Letter 86C: Referring Taxpayer Inquiry/Forms to Another Office
  • Letter 104C: Address Change Acknowledgement
  • Letter 147C: EIN Previously Assigned
  • Letter 252C: Name of Business Shown on Return Needs Verification
  • Letter 312C: S-Corporation Election (F2553), Revocation, or Termination Incomp
  • Letter 319C: Return Covers Other Than 12-Month Accounting Period
  • Letter 326C: S-Corporation Election (F2553) Rejected/Revoked
  • Letter 385C: S-Corporation Election (F2553), QSSS, QSST, ESBT Accepted
  • Letter 673C: Duplicate Returns Filed; Adjustment or Refund Explained
  • Letter 685C: SSN Invalid
  • Letter 696C: Return Requested (Final) for Discontinued Business
  • Letter 707C: Refund / Return Delayed in Processing; Refund Forthcoming
  • Letter 858C: Unemployment Return (FUTA) Filing Requirements: Form 940
  • Letter 1058: Final notice / intent to levy (and notice of your right to a hearing)
  • Letter 1224C: Exempt Organizations; Answers to Questions
  • Letter 1355C: Partnership Return Incomplete for Processing: Form 1065
  • Letter 1921C: Employment Code C (Form 8274): Form 941, Form 944and Form 945
  • Letter 1997C: Backup Withholding; Employer Appointment of Agent
  • Letter 2233C: Application to Adopt Change or Retain A Tax Year Denied
  • Letter 2284C: Delinquent Return (Form 940, Form 941, Form 943, Form 944)
  • Letter 2314C: Accounting Period Change (F1128) Incomplete for Processing
  • Letter 2359C: Accounting Period Change (F8716) Unacceptable (Form 1065/ Form 11
  • Letter 2475C: Address Change Request from an Undeliverable
  • Letter 2645C: Interim Letter
  • Letter 3008C: Corporate Return Filing Requirements: Form 1120, Form 1120A/S
  • Letter 3064C: IDRS Special Letter
  • Letter 3574C: The Results of Your Entity Classification Election: Form 8832
  • Letter 3575C: Your Entity Classification Election Form 8832 Was Denied
  • Letter 3576C: Your Entity Classification Election Form 8832 Was Accepted
  • Letter 3852C: Entity BMF Unpostable 329 Limited Liability Company (LLC) Returns
  • Letter 3853C: Unpostable 310 - Form 1120/ Form 1120-S Filing Requirement Mismat
  • Letter 3916C: Unpostable 307 (FYM Issues) - Form 8716/ Form 1128 Request - Form