United States · IRS account transcripts

IRS transaction code 424: Examination request indicator

What the code is defined as in IRS Document 6209, what the date beside it means, and what the IRS publishes about the codes around it.

Short answer: Document 6209 defines TC 424 as the examination request indicator: the return was referred to the Examination or Appeals Division.

Source: IRS Document 6209, Section 8A (Rev. 3/2018)Retrieved 2 November 2026

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What the IRS calls TC 424

Document 6209, Section 8A lists TC 424 as Examination request indicator (no debit or credit shown for it in Document 6209). The remarks column says:

“Return referred to Examination or Appeals Division.”

Source: IRS Document 6209, Section 8A, Master File Codes (Rev. 3/2018), entry for transaction code 424.

In plain language

TC 424 records a referral. Document 6209 says it generates examination opening inventory information and deletes the record from the DIF file, if present. It also says the transaction can be generated for individual accounts when an Information Returns Program (IRP) underreporter case is referred to Examination.

Like TC 420 it is a status marker. It does not say what will be asked of you or what, if anything, will change on the account.

What the date next to it means

Document 6209 does not define the date on a TC 424 line. By the Taxpayer Advocate Service’s explanation, a transcript date is normally the transaction date, with the cycle date showing when the IRS processed the line. The Taxpayer Advocate Service explains the general rule: a transaction date is the effective date of a transaction on a tax account, and the cycle date represents the date the IRS processed it. Sometimes the two coincide and sometimes they do not. See the transcript date guide and the cycle code decoder.

What the IRS publishes about what comes next

This page gives no timing. The IRS documents we read state no timeline for what follows TC 424.

Related codes

Who this is for

Filers, family members and preparers reading an IRS account transcript who want the published definition of a single line before looking at the rest.

What this page does not cover

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Frequently asked questions

What does TC 424 mean?

Examination request indicator. Document 6209: the return was referred to the Examination or Appeals Division.

What is the difference between TC 420 and TC 424?

Both record a referral to Examination or Appeals. Document 6209 describes TC 420 as computer generated when an opening record posts, and TC 424 as generating examination opening inventory information.

Can TC 424 come from an underreporter case?

Yes. Document 6209 says it can be generated for individual accounts when an IRP underreported case is referred to Examination.

How is TC 424 reversed?

TC 421 reverses TC 420 or 424 per Document 6209. TC 425 is listed as a TC 424 which was reversed.

Can this page tell me why TC 424 is on my account?

No. It repeats what Document 6209 says about the code. Only the IRS can say why a line is on your account.

Sources

Retrieved

Official IRS and Taxpayer Advocate Service pages only. Each link was opened on the retrieval date and the facts above were read from it. The IRS is the authority.

General information — not tax advice

TNAADO is not affiliated with the IRS. This page explains published definitions and does not read, store or send your transcript. It cannot tell you why a line is on your account, when a refund will arrive or what to do about your account. Rely on the IRS and a qualified tax professional for your situation.