TC 290 is one of the most common codes on a transcript that has had any trouble at all. It is also one of the most misread. People see "additional tax assessed" and assume the worst. Sometimes they are right. Often the amount is $0.00 and the line is good news.
The definition
Document 6209 titles TC 290 "Additional Tax Assessment" and defines it as "additional tax as a result of an adjustment to a module which contains a TC 150 transaction." Two things follow from that sentence.
First, a TC 290 requires a processed original return. It adjusts an existing module. If there is no TC 150, a TC 290 is not the code you will see.
Second, the source is an adjustment, not an examination. Examination and Appeals assessments use TC 300. Document 6209 lists document code 54, the DP adjustment code, as the valid document code for TC 290. In practice, adjustments come from many places: an amended return being processed, the Automated Underreporter program, a math error correction, a claim, a correction of a processing mistake. The transcript code tells you an adjustment was made. The notice that went with it tells you why.
When a TC 290 has a dollar amount
A positive TC 290 increases the tax on the module. Document 6209 says it "generates assessment of interest if applicable (TC 196)." So a dollar TC 290 is often followed by an interest line, and sometimes by penalty lines, in the same or a nearby cycle.
The most common source of a dollar TC 290 on an individual account is the underreporter program. Document 6209's underreporter process codes include one for an adjustment using TC 29X with reference numbers 806 and 807 for withholding discrepancies, and its freeze code release rules reference TC 29X blocking series used by the individual AUR program. If you see TC 922 underreporter activity and then a dollar TC 290, the CP2000 process likely ended in an assessment. See TC 922 and the Underreporter Program.
Another common source is a math error correction under IRC 6213(b). That statute lets the IRS assess tax arising from a mathematical or clerical error without first issuing a notice of deficiency, but the notice must set forth the error and an explanation. Under IRC 6213(b)(2)(A), you can request abatement within 60 days after that notice is sent, and the IRS must abate the assessment. Any reassessment then has to go through normal deficiency procedures.
That 60-day window is one of the most valuable and most ignored rights in the Code. If a dollar TC 290 came from a math error notice and you disagree, the clock is running from the notice date.
When a TC 290 is for zero
A zero-dollar TC 290 changes no tax. So why post it?
Because it releases things. Document 6209 lists the freezes and holds that a TC 290 releases, including the duplicate return freeze, the refund hold, the TC 470 claim hold, the TC 570 additional liability hold, the advance payment freeze, the math error freeze and the subsequent payment freeze, among others. A zero TC 290 is frequently how an IRS employee closes a review and lets the account move again.
In plain terms: if your refund has been frozen and a TC 290 .00 posts, look a line or two further for a TC 846 refund. It often follows.
Document 6209 also says a TC 290 with a zero amount, or a TC 29X with priority code 1, will post even to a module with the examination freeze. That means a zero TC 290 on a module under exam does not by itself mean the exam is over. Check for a TC 421.
Blocking series that carry a message
The 6209 definition of TC 290 contains two blocking series rules worth knowing.
- "TC 290 with zero amount blocked 96X indicates a taxpayer penalty abatement request was considered and rejected." If you asked for penalty relief and later see this, that is the denial, even if the letter has not arrived.
- A
TC 290blocked 180 to 198, 780 to 789, 960 to 969 or 980 to 989 "will generate a CP55 Notice to Re-file Return."
There is a related freeze. Document 6209 describes an "Appeals abatement refusal indicator" set when a TC 290 in blocking series 960 to 969 posts, after which certain abatement transactions such as TC 161, TC 271 and TC 281 will not post. It is released by a TC 290 in blocking series 970 to 979. You will rarely see the blocking series on a taxpayer transcript, but if you are working a penalty dispute through a representative, it is worth asking for.
Claims, amended returns and the TC 290 that follows
When you file an amended return or a claim, the transcript usually shows the request first and the result second.
The request often appears as a TC 977 for an amended return, or as a TC 470, which Document 6209 titles "Taxpayer Claim Pending" and describes as preventing notices from going out. The 6209 definition of TC 977 is careful to say that its amount "is a remittance amount and does not reflect adjustment in liability." The liability change, if any, posts later.
That later posting is often a TC 290 or TC 291. A dollar TC 290 means the amendment or claim increased the tax. A TC 291 means it reduced the tax. A zero TC 290 can mean the amendment was processed with no change in tax, and Document 6209 says a TC 290 releases the TC 470 claim hold. So the sequence TC 977, then TC 290 .00, then a refund or a renewed notice stream, is a common pattern.
Reading the cycle around a TC 290
A TC 290 rarely posts alone. Look at everything in the same cycle and the next one or two.
- Interest: a
TC 196computed on the additional tax. - Penalties: any penalty lines that ride along with the adjustment, each with its own code.
- A notice: a
TC 971with an action code, or simply a new balance due notice in the mail. - Releases: if a hold was on the account, its reversal code or a refund line.
Group those lines together on your own notes. They are one event, not four.
TC 290 and its partners
| Code | Title | Effect |
|---|---|---|
TC 290 | Additional Tax Assessment | Increases tax on a module with a TC 150 |
TC 291 | Abatement Prior Tax Assessment | Reduces a prior TC 150, 290 or 300 |
TC 294 / TC 295 | Tentative carryback disallowance / allowance | Adjusts tentative carryback refunds |
TC 298 | Additional Tax Assessment with Interest Computation Date | Like TC 290, with a stated interest start date |
TC 299 | Abatement of Prior Tax Assessment with Interest Computation Date | Like TC 291, with a stated interest date |
If a TC 290 increased your tax and a TC 291 later reduced it, net them. The account balance reflects both. See TC 291 and TC 301.
A TC 290 and the collection clock
A dollar TC 290 is an assessment. It carries its own assessment date, and under IRC 6502(a) the IRS has 10 years after that assessment to collect it. So a single tax year can have more than one collection clock: one for the original TC 150, another for a later TC 290. When you are trying to figure out how long the IRS can collect on a year, list every assessment line and its date.
What to do when you see one
Match it to a notice. Every dollar TC 290 should correspond to an IRS letter or notice explaining the adjustment. If you never received one, ask for it.
Figure out the source. Underreporter, math error, amended return, claim or processing correction. Each has different response rights.
Check the date against your deadlines. A math error abatement request has 60 days under IRC 6213(b)(2)(A). Other adjustments have their own paths, including a claim for refund within the limits of IRC 6511.
And if it is a zero TC 290, read the next few lines before you worry. It may be the line that freed your refund.
One last habit that saves a lot of grief: write the notice number and date next to every dollar TC 290 on your copy of the transcript. When you later argue about what was assessed, why, and whether you had a chance to respond, that pairing of code and notice is the record you will want. The IRS keeps its version. Keep yours.