IRS NOTICE REFERENCE
Letter 1277
The Independent Office of Appeals has sent you a letter 1277 informing you that your request for penalty adjustment was either partially accepted or fully denied.
General information only. Not legal or tax advice.
Notice details
- Notice code
- Letter 1277
- Category
- Refund claims and litigation
- Severity tier
- Tier 4 — Escalation warranted. The notice involves collection enforcement, appeals rights, or significant penalty exposure.
- Governing law
- §6532; §7422; §6511 (Internal Revenue Code sections)
- Escalation flag
- This notice carries a forfeitable right, a hard statutory deadline, or criminal-preparer risk. It is flagged for escalation in the TaxRiskOS workflow.
- Source
- IRS Taxpayer Advocate Service
What this notice is
The Independent Office of Appeals has sent you a letter 1277 informing you that your request for penalty adjustment was either partially accepted or fully denied.
Source: IRS Taxpayer Advocate Service. Reproduced for reference. General information — not legal or tax advice.
What the IRS says to do
If you disagree with Appeals determination, you can continue your appeal by filing suit with either a United States District Court or the United States Court of Federal Claims. Before you file a suit, you must: Pay the balance due in full . File a claim on Form 843 , Claim for Refund and Request for Abatement, with a statement requesting your claim be immediately disallowed, with the Service Center that processed the applicable return. The Service Center will send you a formal notice disallowing your claim, and you’ll generally have two years from the date of this formal claim disallowance to file your suit.
This is the IRS’s own guidance reproduced from the IRS notice page. It describes the IRS’s process — it is not legal or tax advice from TaxRiskOS.
Governing IRS procedure (Internal Revenue Manual)
The IRS’s own internal procedures for handling this notice type are documented in the Internal Revenue Manual:
- IRM 4.10.11 — 4.10.11 Claims for Refund, Requests for Abatement, and Audit Reconsiderations
- IRM 4.19.16 — 4.19.16 Claims
Reference to published IRS procedure. General information — not legal or tax advice.
Official IRS reference
Read the official notice page on IRS.gov: https://www.taxpayeradvocate.irs.gov/notices/letter-1277/
Related tools
TaxRiskOS is workflow software for practitioners — it captures the notice, computes the deadline, surfaces the escalation tier, and builds a document checklist. It documents process; it does not give advice or draft responses.
Check this notice’s deadline (free tool)