Code 424: examination request indicator.
From IRS Document 6209, the IRS's processing codes manual.
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Document 6209 says
Used on individual (IMF) accounts.
Examination Request Indicator
The full Document 6209 entry, as printed
I/B/ E Examination Request Indicator 77 Return referred to Examination or Appeals Division. Generates Examination opening inventory information. Deletes record, if present, from DIF file. This transaction can also be generated for IMF when an IRP Underreported Case is referred to Exam. Generated as a result of input through PCS
After code 424
Not enough shared timelines with this code yet. The block fills in once 30 people with code 424 share theirs from the result page.
Crowd figures, not IRS data. They describe what happened to others, not a promise.
Questions people ask
What does code 424 mean on my IRS transcript?
Document 6209 calls it "Examination Request Indicator".
Sources
Checked against these sources on October 30, 2026.