TC Codes Library
IRS transcript codes — the three-digit transaction codes stamped on every IRS account transcript — record what actually happened to an account, in the order it happened. The IRS Transcript Decoder looks up a single code instantly. This library goes further for the codes where a quick definition isn't enough — where the practitioner's next move depends on a closing code, a statute computation, or a distinction between two codes that look interchangeable but aren't.
One hundred ninety-three codes are live, grouped below by what they do. More are planned; pages arrive in batches.
Collection holds
| Code | What it means |
|---|---|
| TC 470 | A pending-claim hold on collection or notices — what it actually freezes depends entirely on its closing code. |
| TC 528 | Ends a status 41/42 collection stay and returns the module to its prior posture. |
| TC 472 | Reverses an erroneous TC 470 — but only if the reversal's closing code matches the original freeze's. |
Currently Not Collectible
| Code | What it means |
|---|---|
| TC 531 | Reverses a CNC determination and returns the account to active collection. |
| TC 534 | Writes off one assessment whose collection statute expired inside a still-open module. |
| TC 537 | The system-generated CNC reversal — a new liability appeared, not a reassessed hardship. |
| TC 530 | Reports an account currently not collectible — without stopping the collection statute or preventing a lien. |
| TC 532 | Corrects a TC 530 CNC status posted in error — not a reassessment like TC 531, and not a new liability like TC 537. |
Fees and collection costs
| Code | What it means |
|---|---|
| TC 360 | Assesses lien filing fees or levy/sale costs — a charge that can survive the tax it was securing. |
| TC 361 | Abates a lien or collection-cost fee — narrower than it sounds, and does not release the lien itself. |
Offer in Compromise
| Code | What it means |
|---|---|
| TC 481 | OIC rejected — extends the collection statute by pendency plus 30 days, and the assessment statute by pendency plus a full year. |
| TC 482 | OIC withdrawn or terminated — the same one-year assessment-statute extension as a rejection, now confirmed. |
| TC 480 | An offer deemed processable — and the start of a statute suspension the IRM says not to add a year to. |
| TC 780 | The offer accepted — interest stops computing and refunds freeze across the whole account for eight weeks. |
| TC 788 | Every term of the offer met — and despite the numbering, it does not reverse the acceptance. |
| TC 483 | Corrects an erroneous or not-processable TC 480 — does not extend the assessment or collection statute. |
| TC 781 | OIC default — reverses every TC 780 in the module and puts the original liability back, even on paid-off periods. |
| TC 782 | Corrects an erroneously posted TC 780 — reverts the module to TC 480 status, re-freezing it on IMF rather than releasing it. |
Installment agreements
| Code | What it means |
|---|---|
| TC 488 | Business/estate manual-billing status — its IRC 6166 use suspends the collection statute, the opposite of the standard Installment Agreement rule. |
| TC 489 | Installment/manual-billing default — ends an IRC 6166 collection-statute suspension and restarts the statute from scratch. |
Statute
| Code | What it means |
|---|---|
| TC 560 | Extends the assessment statute by signed Form 872 — never the collection statute on tax already billed. |
| TC 860 | Reinstates a balance abated by clerical error after the statute otherwise ran — narrow, and fact-dependent. |
| TC 500 | Suspends the collection statute for military service, under one of two regimes the closing code decides. |
| TC 502 | Corrects an erroneous TC 500 military deferment and restores the original CSED — but not the interest/penalty freezes. |
| TC 535 | Reverses an incorrect TC 534 write-off — only a complete reversal turns interest and FTP computation back on. |
Exempt-organization penalty
| Code | What it means |
|---|---|
| TC 234 | Daily Delinquency Penalty on a late Form 990/5500 — a flat per-day charge First-Time Abate cannot reach. |
| TC 235 | Abates the Daily Delinquency Penalty — reasonable cause is the only relief path available. |
| TC 239 | Removes a computer-assessed Daily Delinquency Penalty — and also appears when a hand-entered penalty replaces the one the system already charged. |
| TC 238 | The computer charging an exempt organization per day — at figures Document 6209 froze at 2015. |
Refund freezes
| Code | What it means |
|---|---|
| TC 130 | Freezes an entire account from refunding over a liability the IRS says exists elsewhere — the indicator decides whose debt it actually is. |
| TC 131 | Reverses a TC 130 refund freeze and lets the money flow — its sibling release code, TC 824, ends the same freeze by spending the credit instead. |
Failure to File penalty
| Code | What it means |
|---|---|
| TC 160 | A Failure to File penalty an Audit or Collection employee computed and posted by hand, distinct from the identical penalty the system assesses on its own. |
| TC 161 | Abates a Failure to File penalty already assessed — First-Time Abate, reasonable cause, and a correction of an invalid assessment all post under this same code. |
| TC 162 | Not a dollar transaction — removes the restriction a manual TC 160 or 161 leaves behind so the system can compute the penalty on its own again. |
| TC 167 | The computer’s own reversal of a computer-assessed Failure to File penalty when the return’s due date or tax due changes — a recalculation, not a relief grant. |
| TC 166 | The computer assessing a late-filing penalty, with nobody having considered reasonable cause. |
Estimated tax penalty
| Code | What it means |
|---|---|
| TC 170 | Records an underpayment-of-estimated-tax penalty, self-assessed on Form 2210/2220 or manually assessed by the IRS — reasonable cause alone cannot remove it. |
| TC 171 | Manually reduces or removes an estimated tax penalty — the penalty reason code behind it reveals exactly which narrow ground actually applied. |
| TC 176 | Master File’s own automatic assessment of the estimated tax penalty — the fastest fix is usually correcting the payment data behind the number, not arguing relief. |
| TC 177 | Master File’s automatic reversal of a TC 176 estimated tax penalty, triggered by the same payment corrections that created it — a systemic fix, not a relief grant. |
Failure to Deposit penalty
| Code | What it means |
|---|---|
| TC 180 | Assesses the Failure to Deposit penalty on late or short employment/excise tax deposits — a tiered 2/5/10/15 percent rate structure, with First-Time Abate available by name. |
| TC 181 | Removes a Failure to Deposit penalty in whole or in part — whether the route is a safe-harbor correction, First-Time Abate, or reasonable cause changes what you actually file. |
| TC 186 | The deposit penalty the system assessed on its own — and it can arrive in two installments five cycles apart, so the first figure is not always the whole charge. |
| TC 187 | The computer taking back a deposit penalty it assessed itself, usually because a payment landed or the tax came down — not because relief was granted. |
Refund holds & freezes
| Code | What it means |
|---|---|
| TC 570 | A hold on a refund for a liability the IRS hasn’t finished pricing — a second TC 570 posted before the first clears stops it from releasing on its own. |
| TC 571 | Releases the TC 570 hold — confirms the obstacle is gone, not that the refund is already on its way. |
| TC 810 | Freezes a refund outright — the Reason Code riding with it (1 through 4) is the difference between a routine check and a review that can run over a year. |
| TC 811 | Reverses TC 810, in whole or in part — no fixed release timeline exists anywhere in the public IRM. |
| TC 576 | Freezes only the unallowable portion of a refund the return claimed — the rest of the overpayment still goes out. |
| TC 577 | Restores the unallowable amount a TC 576 froze — an exam closing does it systemically, a corrected error does it administratively. |
| TC 510 | Releases a refund freeze set because the SSN or name control on a return did not match IRS records — permanent only as long as that data stays unchanged. |
Refund offsets
| Code | What it means |
|---|---|
| TC 826 | An internal Master File offset applying one year’s refund to another year’s IRS balance — an entirely different mechanism from the Treasury Offset Program. |
| TC 898 | A Treasury Offset Program interception for a non-IRS debt — child support, student loans, another agency — dispute it there, not with the IRS. |
| TC 821 | Reverses an internal TC 826 offset — same-day pairs must be read in input order, last offset out reversed first. |
| TC 899 | The four Type codes on a TOP reversal decide whether the client is getting money back or watching a refund get clawed back. |
| TC 896 | A tax offset that crosses Master Files or lands on an IRA/shared-responsibility account — plus a rare pre-1999 agency-coded variant easily mistaken for TOP. |
| TC 897 | Reverses a pre-1999 Debtor Master File offset — a retired TOP predecessor — so seeing it today usually signals very old account history, not a live case. |
Return posting & credits
| Code | What it means |
|---|---|
| TC 150 | Posts the original return’s assessed liability — the transaction every other code on the module waits behind, and the one that starts the CSED clock. |
| TC 806 | Posts a return’s claimed withholding credit — allowed first, verified later against employer-filed data. |
| TC 766 | A deliberately generic refundable-credit posting code covering many different credits — never shorthand for any one specific credit. |
| TC 768 | Posts the Earned Income Credit exactly as claimed on the original return — its own code family, structurally separate from the generic TC 766. |
| TC 765 | Reverses the Earned Income Credit — but from two different sources the transcript alone won't distinguish. |
| TC 767 | Means two different things depending on whether it carries an Offset Trace Number — one routine, one restricted to TOP Liaisons. |
| TC 807 | Reverses a withholding credit — and on a fiduciary return, it can only ever reverse TC 806, never TC 800. |
Refund issuance
| Code | What it means |
|---|---|
| TC 846 | The refund-issuance code. Its date is a scheduled release, not a guarantee of when the money lands. |
| TC 971 | A generic notice-issued marker with no fixed meaning of its own — a companion Action Code decides what actually happened. |
| TC 848 | Transfers a refund out of one module — the required TC 849 counter-entry elsewhere confirms the transfer actually landed. |
Failure to Pay penalty
| Code | What it means |
|---|---|
| TC 270 | A failure-to-pay penalty computed by hand, whose posting stops the computer recomputing the penalty on that module again. |
| TC 271 | A failure-to-pay penalty removed by a person rather than the computer — and one reason code decides whether the module keeps computing afterwards. |
| TC 272 | Carries no money and does one thing — switches the failure-to-pay computation back on. On an unpaid account that can raise the balance. |
| TC 277 | The computer removing a failure-to-pay penalty it assessed itself — and on 2020 and 2021 accounts, most often an automatic waiver nobody asked for. |
| TC 276 | The computer charging failure to pay — at a rate that doubles once a levy notice issues. |
Interest assessment and abatement
| Code | What it means |
|---|---|
| TC 190 | Manually computed interest that leaves the account computing normally afterwards — and a code whose current IRM use is broader than its published definition. |
| TC 191 | Removes manually assessed interest without freezing the account — the mildest code in the interest family, and one the published IRM never gives a rule of its own. |
| TC 197 | The computer walking back interest it had already assessed, usually because the tax underneath it came down — and sometimes because a payment failed. |
| TC 336 | Interest the computer assessed because an examination adjustment posted — the interest code that tells you an exam created the balance. |
| TC 337 | Removes deficiency interest when an examination adjustment reverses — and reaches three assessment codes, so it appears on accounts carrying no TC 336 at all. |
| TC 196 | The computer charging interest at the first bill, after an adjustment, or whenever an assessment forces the system to true up what is owed. |
Restricted interest
| Code | What it means |
|---|---|
| TC 340 | Interest a person worked out by hand because the computer could not — the one number on a transcript most worth recomputing before a client pays it. |
| TC 341 | Removes interest by hand, and reaches four different assessment codes rather than just the TC 340 it is usually paired with. |
| TC 342 | The zero-dollar transaction that switches automatic interest computation back on — and it cannot be input until someone retrieves the original workpaper. |
Dishonored payment penalty
| Code | What it means |
|---|---|
| TC 280 | The penalty for a payment that bounced, computed by hand — First-Time Abate cannot reach it and oral explanations cannot remove it. |
| TC 281 | Removes a bounced-payment penalty, with a different penalty reason code depending on whose error caused the failure. |
| TC 286 | A bounced-payment penalty charged automatically when a payment reversal posts — including where the reversal code was used wrongly. |
| TC 287 | The system writing off a bounced-payment penalty on its own, but only when three account conditions line up at once. |
Civil fraud penalty
| Code | What it means |
|---|---|
| TC 320 | The 75 percent civil fraud penalty under IRC 6663 — not the accuracy-related penalty it is often mistaken for. |
| TC 321 | Removes a civil fraud penalty, and quietly does a second thing — releases a restriction on the failure-to-pay penalty. |
Tip income penalty
| Code | What it means |
|---|---|
| TC 310 | A 50 percent penalty on the employment tax an employee never reported on their tips — assessed without deficiency procedures. |
| TC 311 | Removes the tip-reporting penalty, under a standard the IRM is unusually prescriptive about — a written statement, sworn where it answers a notice. |
Information return penalties
| Code | What it means |
|---|---|
| TC 200 | A $50-per-failure penalty for not supplying a taxpayer identification number the IRS asked for — never indexed for inflation. |
| TC 201 | Removes the identifying-number penalty, under a waiver that weighs one factor heavily — whether the same filer has been penalized before. |
Partnership and S-corporation return penalties
| Code | What it means |
|---|---|
| TC 246 | A systemic penalty on a partnership or S-corporation return, where the reference number decides which penalty it actually is. |
| TC 247 | The systemic abatement of a partnership or S-corporation return penalty — triggered by a timely credit posting, not by a relief determination. |
Miscellaneous civil penalties
| Code | What it means |
|---|---|
| TC 241 | No fixed meaning of its own — it abates whichever penalty the reference number beside it identifies, including the accuracy-related penalty. |
| TC 240 | Assesses whichever penalty its reference number identifies — and is systemic far more often than it looks. |
Data processing adjustments
| Code | What it means |
|---|---|
| TC 290 | The general-purpose adjustment assessment — and a zero-dollar one can be the record of a penalty request that was refused. |
| TC 291 | Abates a prior assessment — including the tax the taxpayer reported on their own original return. |
| TC 299 | A Doc Code 54 (data processing adjustment) abatement with a mandatory interest computation date — restates interest and the FTP penalty from that date forward. |
Examination assessments and indicators
| Code | What it means |
|---|---|
| TC 300 | The examination or Appeals deficiency, assessed through deficiency procedures rather than as a routine correction. |
| TC 301 | Abates tax on the examination side, capped by the IRM at the module’s total assessed tax. |
| TC 420 | A return assigned in Examination — the freeze it sets does not, in the IRM’s own words, freeze the account. |
| TC 424 | The earliest audit signal on a transcript — a return requested for examination and pulled from the selection pool. |
| TC 421 | Closes the open-exam indicator TC 420 or TC 424 set — the freeze it reverses never held any money to begin with. |
| TC 309 | The exam-side counterpart to TC 299 — an Examination Overassessment with a mandatory interest computation date tied to Form 2285. |
| TC 298 | An additional tax assessment carrying a mandatory interest computation date that can predate the posting date, overriding the standard due-date interest calculation. |
| TC 308 | TC 298's examination-track twin — an Examination or Appeals deficiency assessment with its own mandatory interest computation date. |
| TC 495 | Closes the record of a statutory Notice of Deficiency — either because the case resolved or because the original notice was issued in error. |
Litigation and bankruptcy freezes
| Code | What it means |
|---|---|
| TC 520 | A litigation or bankruptcy freeze whose closing code decides everything, including which IRS manual applies. |
| TC 521 | Closes a litigation freeze because the case resolved — not because the freeze was wrong. |
| TC 522 | Corrects a TC 520 litigation freeze posted in error — the IRM says not to confuse it with TC 521's genuine case resolution. |
Federal tax liens
| Code | What it means |
|---|---|
| TC 582 | Records a filed Notice of Federal Tax Lien days after it actually went to the recording office. |
| TC 583 | Removes a lien indicator — but release and withdrawal are different outcomes under the same code. |
Payments
| Code | What it means |
|---|---|
| TC 610 | The payment sent with the return — and the code that vanishes for months when it cannot post. |
| TC 670 | A payment made after filing, whose designated payment code decides whether it reduced personal trust fund exposure. |
| TC 612 | Reverses a wrongly-posted TC 610 in whole or in part — the amount debited tells you how much of the payment was misposted. |
| TC 672 | Corrects a wrongly-posted TC 670 — inputting it actually relabels that TC 670 as a TC 673, not a separate reversal line. |
Underreporter (AUR)
| Code | What it means |
|---|---|
| TC 922 | Automated Underreporter activity — a status line carrying no money, whose last process code is the whole message. |
Third-party authorizations
| Code | What it means |
|---|---|
| TC 960 | Puts a power of attorney on the module — and its absence is why representatives miss notices. |
| TC 961 | Reverses a power of attorney — and can fire silently when a new authorization is filed without checking the retention box. |
Duplicate and amended returns
| Code | What it means |
|---|---|
| TC 976 | A second return posted to a year that already had one — queued for review, not decided. |
| TC 977 | An amended return posted — and its dollar amount is a payment, not the change to the liability. |
| TC 972 | Reverses a specific TC 971 marker — not necessarily whatever notice or condition that marker recorded. |
Employee Plans Master File (EPMF)
| Code | What it means |
|---|---|
| TC 151 | An EPMF-only code — reverses or relocates a Form 5500-series return; never appears on an individual or business income-tax transcript. |
Payment Tracers
| Code | What it means |
|---|---|
| TC 611 | Reverses a bounced check sent with an original return — the automatic bad-check penalty usually follows. |
| TC 620 | The remittance sent with a Form 7004, 8868, or 5558 extension request — proof the extension was filed. |
| TC 621 | Reverses a bounced extension payment; the extension itself can still stand even though the check did not. |
| TC 640 | A cash-bond deposit against an anticipated audit deficiency — one that never earns overpayment interest. |
| TC 641 | Reverses a bounced cash-bond deposit, and can release the refund freeze TC 640 put in place. |
| TC 650 | A federal tax deposit posted ahead of the return it reports on — and one that can silently roll to the next period. |
| TC 651 | Reverses a bounced federal tax deposit — often paired with a separate Failure to Deposit penalty. |
| TC 661 | Reverses a bounced estimated tax payment or federal tax deposit — the MFT tells the two apart. |
| TC 671 | Reverses a bounced ordinary payment — with a documented exception for electronic (EFT) payments. |
| TC 680 | A payment specifically designated to pay interest, with an overpayment rule that spills into tax and penalty. |
| TC 681 | Reverses a bounced designated interest payment — the interest math needs a second look, not just the balance. |
| TC 690 | A payment specifically directed at one penalty on a multi-penalty module, ahead of the system's own default order. |
| TC 691 | Reverses a bounced designated penalty payment — the penalty it was meant to satisfy is unpaid again. |
| TC 694 | Pays down lien-filing and levy fees specifically, capped against the unreversed fee balance. |
| TC 721 | Reverses a bounced check a taxpayer sent to voluntarily repay an erroneous refund. |
| TC 760 | A manually substantiated credit for a payment proven made but never posted — the last resort in a payment tracer. |
Credit Transfers
| Code | What it means |
|---|---|
| TC 630 | A manually computed Separate Appropriations credit — most often the solar or wind energy investment credit. |
| TC 636 | The Master File generated version of TC 630's Separate Appropriations credit. |
| TC 700 | The receiving side of a manual credit transfer — and, in one documented use, a temporary erroneous-refund holding credit. |
| TC 706 | The credit side of Master File's own internal pre-refund offset — see TC 826 for the debit half. |
| TC 710 | A taxpayer's credit-elect from a prior year's overpayment, often backdated to the prior return's due date. |
| TC 716 | The Master File generated version of TC 710's credit-elect, limited to a specific enumerated list of forms. |
| TC 790 | A manual transfer of an individual's overpayment to satisfy a business balance — gated behind a TC 130 hold. |
| TC 796 | The automated version of TC 790, triggered once an individual overpays by $100 or more. |
| TC 800 | A manually input withholding or excess-FICA credit — the exception to the ordinary, machine-generated TC 806. |
| TC 820 | The general debit side of a manual credit transfer — it will not post at all if the credit is not fully available. |
| TC 824 | Moves overpayment credit specifically frozen by a TC 130 hold, releasing that freeze in the same action. |
| TC 849 | The receiving half of a fix for a refund that posted to the wrong tax module — paired with TC 848. |
| TC 852 | Corrects a TC 850 overpayment-interest transfer that was entered wrong. |
| TC 890 | The debit side of TC 790 — an individual's overpayment leaving their account to fund a business balance. |
Credits and Estimated Tax
| Code | What it means |
|---|---|
| TC 660 | A quarterly estimated tax installment — one the IRS cannot redirect to a prior year's balance before the year closes. |
| TC 666 | Master File's automated search of a spouse's module for estimated tax credit a return claimed but did not have. |
| TC 667 | The debit side of TC 666 — the spouse's module giving up excess estimated tax credit. |
| TC 678 | A rare estate-tax-only credit for old Treasury bonds redeemed at face value to pay the estate tax bill. |
| TC 764 | Earned Income Credit added through a later adjustment, not the amount originally claimed on the return. |
Refund Inquiries
| Code | What it means |
|---|---|
| TC 720 | TC 720 is a credit — money the IRS already refunded coming back, from a bank return or an erroneous-refund repayment, not a new refund going out. |
| TC 722 | TC 722 doesn't mean a second repayment — it's Master File correcting a TC 720 that posted incorrectly. |
| TC 830 | TC 830 manually carries an overpayment forward to next year's estimated tax — and once the reversal window closes, it's binding. |
| TC 836 | TC 836 is the computer-generated twin of TC 830 — same credit elect, posted automatically instead of by hand. |
| TC 840 | TC 840 means an IRS employee issued the refund by hand — but a 'Dummy TC 840' pattern can mean no check was ever actually cut. |
| TC 842 | TC 842 stops a scheduled business refund before Treasury ever releases it — the refund never actually left. |
Overpayment Interest
| Code | What it means |
|---|---|
| TC 730 | Credit side of a manual transfer moving already-computed overpayment interest between two of a taxpayer's own modules. |
| TC 732 | Reverses a TC 730 manual interest transfer that was entered incorrectly, in whole or in part. |
| TC 736 | Computer-generated credit moving overpayment interest onto a module with a balance due, within the same Master File. |
| TC 756 | Generated credit moving overpayment interest from an individual (IMF) account to a business (BMF) module. |
| TC 770 | The core code that actually pays a taxpayer interest on an overpayment the IRS held too long. |
| TC 771 | Reverses interest included in a business refund that is deleted before it is ever issued. |
| TC 772 | Reverses or corrects a TC 770/776 interest credit — three distinct triggers: error correction, netting, offset cleanup. |
| TC 776 | Computer-generated interest credited when a module becomes overpaid via a credit or abatement — the interest that later gets offset or refunded. |
| TC 777 | Reverses interest tied to a refund that failed (undelivered/cancelled check) or interest netting — not a general TC 776 undo. |
| TC 850 | Manual transfer of overpayment interest between modules, mandatory when the interest originated as a hand-computed TC 770. |
| TC 851 | Reverses a computer-generated TC 856 interest transfer — not TC 850, despite sitting next to it numerically. |
| TC 856 | Computer-generated interest transfer between modules; must be replaced by manual TC 850/730 when the interest is a hand-computed TC 770. |
| TC 876 | The IMF-to-BMF cross-master-file version of an interest transfer — same concept as TC 856, separate code family. |
Returned & Cancelled Refunds
| Code | What it means |
|---|---|
| TC 740 | A refund check that never reached the taxpayer — bounced back by the Postal Service or gone stale after 12 months uncashed. |
| TC 841 | A refund check that was cancelled before it turned into money — most often because the taxpayer sent it back. |
Erroneous Refunds
| Code | What it means |
|---|---|
| TC 844 | A zero-dollar freeze locking the whole account once the IRS finds a refund it should never have sent. |
| TC 845 | Releases the account-wide freeze from TC 844 — but only the IRS's Accounting/Erroneous Refund unit is authorized to input it. |
Carrybacks and Tentative Allowances
| Code | What it means |
|---|---|
| TC 294 | Takes back some or all of a tentative carryback refund at the processing level, capped at the amount the original TC 295/305 allowance paid out. |
| TC 295 | The fast, unaudited refund paid within 90 days when a net operating loss, capital loss, or credit is carried back to an earlier year — provisional, not final. |
| TC 304 | TC 294's examination-track twin — the same tentative-carryback disallowance, but posted only after Examination Division actually reviewed the claim. |
| TC 305 | TC 295's examination-track twin — a tentative carryback allowance processed by Examination Division rather than routine return processing. |
| TC 973 | A multi-purpose document-receipt marker — a Form 1139 tentative refund application on most carryback modules, but a BMF identity-theft suspension flag on others. |
Accuracy-Related Penalty
| Code | What it means |
|---|---|
| TC 350 | Assesses the negligence component of the IRC section 6662 accuracy-related penalty — a reasonableness standard, not the same test as substantial understatement or fraud. |
| TC 351 | Abates a previously posted TC 350 negligence penalty in whole or in part. |
Extension of Time to Pay
| Code | What it means |
|---|---|
| TC 468 | Records an approved extension of time to pay estate tax — it stops the failure-to-pay penalty but not interest, and suspends the CSED under IRC section 6503(d). |
Transferee Liability
| Code | What it means |
|---|---|
| TC 450 | Assesses one taxpayer for another taxpayer's liability under the transferee-liability doctrine — the transferee gets the same Notice of Deficiency and Tax Court rights. |
| TC 451 | Abates a previously posted TC 450 transferee liability assessment in whole or in part. |
Trust Fund Recovery Penalty
| Code | What it means |
|---|---|
| TC 538 | A mirrored credit on a business's employment tax module created when a responsible person pays part of their own Trust Fund Recovery Penalty — not a payment by the business. |
| TC 539 | Reverses a previously posted TC 538 cross-reference credit in whole or in part. |
More from the Desk
Read the Deep Dive behind this tool: First Principles: Reading an IRS Account Transcript