The ordinary assessment process is deliberate and protective: the IRS proposes a deficiency, issues a statutory notice, and the taxpayer can petition the Tax Court before a dollar is assessed or collected. Jeopardy and termination assessments are the emergency exception. When the IRS concludes that waiting would let the tax slip away — a taxpayer preparing to flee the country, liquidate, or move assets out of reach — it can assess and even levy immediately, before any of the usual process runs. These are among the most aggressive tools in the Code, and they come with their own fast-track review.

Termination versus jeopardy

The two labels describe closely related powers that differ mainly in timing and tax type. A termination assessment under § 6851 applies to the current taxable year (which the IRS effectively cuts short) or the immediately preceding year before its return is due; it terminates the period and makes the tax immediately due and payable. A jeopardy assessment under § 6861 applies to a determined deficiency in income, estate, or gift tax for a year already closed, allowing immediate assessment without waiting out the deficiency procedures; § 6862 does the same for other taxes such as employment and excise. In all of them, the trigger is the same: the IRS believes assessment or collection is in jeopardy.

ProvisionWhat it doesTaxes / years reached
§ 6851 — TerminationTerminates the taxable year; tax is immediately due and payableIncome; the current or immediately preceding year, before that return is due
§ 6861 — JeopardyImmediate assessment of a deficiency, bypassing the § 6213 restrictionIncome, estate, and gift taxes
§ 6862 — JeopardyImmediate assessmentTaxes other than income, estate, and gift (e.g., employment, excise)

What “immediate” really means

The defining feature is the loss of the front-end protections. Normally the IRS cannot assess income, estate, or gift tax until it sends a notice of deficiency and the 90-day Tax Court window passes (§ 6213). A jeopardy or termination assessment suspends that restriction — the tax goes on the books at once. And under the last sentence of § 6331(a), when collection is in jeopardy the IRS may levy immediately, without the 30-day pre-levy notice that ordinarily precedes enforcement. There is one meaningful gate: under § 7429, the assessment or accelerated levy requires the personal written approval of IRS Chief Counsel (or a delegate).

Assess first, hear laterA jeopardy or termination assessment flips the normal order: the IRS assesses, and can levy, immediately — before the deficiency process runs. The protections come after the fact, through the § 7429 review track, not before.

The § 7429 review track

Because the front-end safeguards are gone, § 7429 supplies an expedited back-end. Within 5 days of the assessment or levy, the IRS must give the taxpayer a written statement of the information it relied on. The taxpayer then has 30 days to request administrative review, and after that may bring a civil action in district court (or, where a deficiency petition is already pending, in the Tax Court). The court must decide within 20 days whether the assessment was reasonable under the circumstances — on which the IRS bears the burden — and whether the amount assessed was appropriate, on which the taxpayer bears the burden. If the court finds the action improper or excessive, the IRS must abate it in whole or in part.

JEOPARDY FOUNDcollection appearsat risk of defeatCHIEF COUNSEL OKpersonal writtenapproval requiredASSESS + LEVY NOWno wait for thedeficiency process§ 7429 EXPEDITED REVIEW — the taxpayer’s protections5-day written statement30-day request for reviewdistrict-court suitcourt decides in 20 daysThe court asks two questions: was the assessment reasonable under the circumstances (IRS’s burden),and is the amount appropriate (taxpayer’s burden)?A notice of deficiency must still issue (within 60 days for a § 6851 termination), preserving the right to litigate the tax in the Tax Court.
A jeopardy or termination assessment reverses the usual sequence — assess and levy first, review after. The § 7429 track is the taxpayer’s fast route to a court.

The deficiency case still comes

It is important not to confuse the two proceedings. The § 7429 review tests only whether the emergency action was justified and the amount reasonable — it is fast and limited. The merits of the underlying tax are litigated separately: after a termination assessment, § 6851(b) requires the IRS to issue a notice of deficiency within 60 days, which restores the taxpayer’s ordinary right to petition the Tax Court and contest the actual liability. The jeopardy device accelerates collection; it does not eliminate the deficiency case.

The Tax Court case still comesEven after an emergency assessment, a notice of deficiency must follow (within 60 days for a § 6851 termination), preserving the right to litigate the real liability in the Tax Court — a separate question from the § 7429 reasonableness review.

The practical takeaway

Jeopardy and termination assessments are rare, reserved for cases where the IRS genuinely fears the money will vanish — illegal-source income, flight risk, asset stripping. But when one lands, the clock is unforgiving and runs in days, not months: the 5-day statement and the 30-day review window are the whole ballgame on the front end. The right response is immediate — demand the information statement, evaluate the Chief Counsel approval and the reasonableness showing, and decide quickly whether to pursue § 7429 review while preserving the deficiency case behind it.