Code 843: check cancellation reversal.
From IRS Document 6209, the IRS's processing codes manual.
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Document 6209 says
Debit. Used on individual (IMF) accounts.
Check Cancellation Reversal
The full Document 6209 entry, as printed
Debit (PJ) I/B Check Cancellation Reversal 45 Reversal of erroneous TC 841. Date and amount must match those of the TC 841 being reversed.
After code 843
Not enough shared timelines with this code yet. The block fills in once 30 people with code 843 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 843 mean on my IRS transcript?
Document 6209 calls it "Check Cancellation Reversal".
Sources
Checked against these sources on October 30, 2026.