Understanding your letter 6539C

Notice details

Notice code

Letter 6539C

Category

Balance due and collection

Severity tier

Tier 2 — Action or response expected. The IRS has taken or proposed an action and expects a response or payment.

Governing law

§6303; §6321 (Internal Revenue Code sections)

Statutory response window

30-day window — always confirm the exact deadline against the date printed on your notice.

Source

IRS.gov — Understanding Your IRS Notice

What this notice is

Information provided on your Form 8038-CP is inconsistent with information provided on previous returns. We need to verify certain information in order to process the return.

Source: IRS.gov. Reproduced for reference. General information — not legal or tax advice.

What the IRS says to do

Send the requested information within 30 days from the date of the letter. If we don't receive a response, we may not be able to process your form.

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 5.19.1 — 5.19.1 Balance Due
• IRM 5.19.4 — 5.19.4 Enforcement Action
• IRM 5.1.1 — 5.1.1 Miscellaneous Collection Procedures

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.irs.gov/individuals/understanding-your-letter-6539c

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.

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