Code 662: correction of 660 processed in error i/b:.
From IRS Document 6209, the IRS's processing codes manual.
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Document 6209 says
Debit. Used on individual (IMF) accounts.
Correction of 660 Processed In Error I/B:
The full Document 6209 entry, as printed
Debit (PJ) I/B Correction of 660 Processed In Error I/B: 19, 24, 34, 58, 87 B: 97 Reverses a TC 660 or TC 666 in whole or in part by debiting the module. IMF/BMF may reverse TC 430 remittance amount. BMF: Debits tax module for Federal Tax Deposit posted in error when MFT 02, 05, 33, 34 or 44. IMF: Records the transfer of underclaimed ES Credits which are frozen. Doc. Code 24 or 34 indicates the credits have been transferred to another account: the amount of the transaction is debited to the Tax Module and any balance is unfrozen. Reverses the TC 430 remittance amount: TC 662 in zero amount releases frozen excess ES credits.
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What does code 662 mean on my IRS transcript?
Document 6209 calls it "Correction of 660 Processed In Error I/B:".
Sources
Checked against these sources on October 30, 2026.