TC 973: Application for Tentative Refund Received

What the code actually does

IRS Document 6209 defines TC 973 (Doc Code 84) under a single, deliberately combined heading: "Application for Tentative Refund F1139 Processed Return Filed 8038 Series Return and Additional Filing of Form 5330." Its remark explains why one code covers three different filings: it "identifies receipt of Form 1139 application of tentative refund for corporation (valid for input after 4/1/1993)," and separately handles "tax liability assessed from additional original filing of Form 5330 and the posting of Form 8038 Series Return." Which meaning applies on a given transcript depends entirely on the module type and the surrounding transaction history.

On a corporate carryback module, TC 973 most often means what the classification hint above points to: a corporation filed Form 1139, Corporation Application for Tentative Refund, and the IRS has logged that the application was received. It is a receipt marker, not the refund itself — the tentative allowance is what TC 305 (or TC 295 outside the exam track) records once it actually pays out.

A second, narrower use: flagging identity-theft review

IRM 21.5.9, Carrybacks, documents a specific additional use of TC 973 that goes beyond a plain receipt marker: on a module under review by Return Integrity and Compliance Services (RICS) for possible BMF identity theft, an unreversed TC 973 is one of the flags — alongside TC 971 Action Code 711 or 713 — that "suspends the return in question." That IRM text also notes "a TC 973 may not be present on accounts where Submission Processing deemed the return is unprocessable," meaning its absence on a suspended-looking module does not rule out an identity-theft hold either.

This matters because the same three-digit code is doing genuinely different work in the two contexts: a routine carryback intake marker on most modules, and an active suspension flag tied to an identity-theft review on a smaller set of them. The account history around the TC 973 — specifically, whether a TC 150 (original return) has posted, and whether a TC 971 AC 711/713 sits nearby — is what tells you which situation applies.

What this means for the carryback claim

If TC 973 appears with no TC 150 posted and a TC 971 AC 711 nearby, the return in question is very likely suspended for a BMF identity-theft review, and the carryback claim will not move forward — a tentative allowance will not be paid — until that review clears and the suspension is lifted. IRM 21.5.9 directs the practitioner to fax a Form 4442 inquiry referral to RICS and to reassess the tentative refund adjustment once the letter (Letter 6042C or 5263C) is reissued if it was never received.

If instead TC 973 simply sits alongside a normally posting TC 150 and no identity-theft indicators, it more likely reflects the routine Form 1139 receipt marker — worth confirming, but not itself a sign of a hold. The practical read of TC 973 is never the code alone; it is the code plus what else is, or is not, present around it.

What TC 973 gets confused with

TC 973 is easy to over-read as a straightforward acknowledgment that a tentative refund application was received and is progressing normally — Document 6209's own combined definition (covering Form 1139, Form 8038-series, and Form 5330 filings under one code) already warns that the same number carries different meanings on different module types, and IRM 21.5.9's identity-theft-suspension use adds a second layer that a plain receipt-marker reading would miss entirely.

It is also not the tentative allowance itself. A TC 973 receipt marker on the module does not mean money has moved — that only happens once TC 295 or TC 305 posts. Reading TC 973 as though a refund is already in progress overstates how far the claim has actually gotten.

The practitioner's actual next step

Check the module type and surrounding transactions before assuming what TC 973 means here — a corporate income tax module points toward the Form 1139 reading; look for TC 971 AC 711/713 to rule the identity-theft suspension use in or out.

If a TC 971 AC 711 or 713 sits nearby and no TC 150 has posted, treat the return as suspended and fax a Form 4442 to RICS to confirm status before advising the client on a timeline.

Do not tell a client a tentative refund is "in process" based on TC 973 alone — confirm whether TC 295 or 305 has actually posted before describing money as moving.

Pull the complete account history with the IRS Transcript Decoder to see the full sequence around TC 973 rather than reading the single code in isolation.