Code 636: separate appropriations refundable credit.
From IRS Document 6209, the IRS's processing codes manual.
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This code is rare on refund timelines. The IRS's own description is on the right.
Document 6209 says
Credit. Used on individual (IMF) accounts.
Separate Appropriations Refundable Credit
The full Document 6209 entry, as printed
Credit (NPJ) I/B Separate Appropriations Refundable Credit Generated Transaction Master File generated credit for amounts falling under Separate Appropriations. With identification number 02, indicates credit for solar or wind energy investment.
After code 636
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Questions people ask
What does code 636 mean on my IRS transcript?
Document 6209 calls it "Separate Appropriations Refundable Credit".
Sources
Checked against these sources on October 30, 2026.