Code 991: open module transcript.
From IRS Document 6209, the IRS's processing codes manual.
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For your refund.
This code is rare on refund timelines. The IRS's own description is on the right.
Document 6209 says
Used on individual (IMF) accounts.
Open Module Transcript
The full Document 6209 entry, as printed
I/B Open Module Transcript Generated Transaction Generates OPEN MODULE transcript of all open tax modules (debit or credit). Transcript will also indicate the current FR Codes of the account.
After code 991
Not enough shared timelines with this code yet. The block fills in once 30 people with code 991 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 991 mean on my IRS transcript?
Document 6209 calls it "Open Module Transcript".
Sources
Checked against these sources on October 30, 2026.