Under IRC Section 6501(a), the general statute of limitations for the IRS to assess additional tax is:
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CPA Tcp Quiz
Practice Apply Statute Of Limitations Rules in CPA Tcp with focused quiz questions that help you check what you know, review explanations, and build confidence with test-style prompts.
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Under IRC Section 6501(a), the general statute of limitations for the IRS to assess additional tax is:
This quiz focuses on Apply Statute Of Limitations Rules, giving you a quick way to practice the rules, question types, and explanations that matter most for CPA Tcp.
Try each quiz question before looking at the correct answer. Use the explanations to review missed ideas, then come back to similar questions until the pattern feels familiar.
Under IRC Section 6501(a), the general statute of limitations for the IRS to assess additional tax is:
Explanation: The general assessment period is 3 years from when the return was filed or its due date, whichever is later. Answer A is correct. 2 years (B) is not the standard assessment period. 5 years from payment (C) is not the general rule. 4 years from year-end (D) is not the standard.
The statute of limitations for the IRS to assess tax is extended to 6 years when:
Explanation: Under Section 6501(e), the 6-year limitations period applies when a taxpayer omits more than 25% of gross income from the return. Answer C is correct. Estimated tax failures (A) don't extend the SOL. Criminal investigations (B) have separate rules. Refund disallowance (D) doesn't extend the assessment SOL.
The statute of limitations for assessment is unlimited (i.e., there is no limitations period) when:
Explanation: The statute of limitations is unlimited for fraud (filing a false return with fraudulent intent) or for failure to file a return - the IRS may assess tax at any time. Answer B is correct. Tax amounts (A) don't affect the SOL. Foreign status (C) doesn't create an unlimited period. Foreign accounts (D) may extend reporting obligations but don't create unlimited assessment SOL.
A taxpayer filed their 2020 Form 1040 on March 15, 2021, before the April 15, 2021 due date. The general 3-year assessment period expires on:
Explanation: The 3-year period runs from the later of the filing date or the due date. Since the due date (April 15, 2021) is later than the filing date (March 15, 2021), the period expires April 15, 2024. Answer D is correct. The filing date (A, C) is earlier and therefore not controlling. Year-end (B) is not the correct starting point.
The statute of limitations for a taxpayer to file a claim for refund is:
Explanation: Under Section 6511(a), the statute of limitations for a refund claim is the later of: (1) 3 years from the date the return was filed (a return filed before its due date is treated as filed on the due date for this purpose), or (2) 2 years from the date the tax was paid. Answer C is correct. 1 year (A) is too short and not the statutory period. 3 years from the payment date alone (B) omits the 'later of' component and the filing-date starting point. 5 years from year-end (D) is not the standard.
A taxpayer and the IRS may agree to extend the statute of limitations for assessment by:
Explanation: The SOL can be extended by mutual written consent using Form 872. This is a bilateral agreement. Answer B is correct. Amended returns (A) don't extend the SOL. Attorney letters (C) are not the proper form. The IRS cannot unilaterally extend the SOL (D).
The statute of limitations for the IRS to collect tax after assessment is:
Explanation: Under Section 6502, the IRS has 10 years from the date of assessment to collect the tax through enforcement actions. Answer A is correct. 3 years (B) is the assessment SOL, not collection. 6 years (C) is not the collection period. Collection is not unlimited (D) - the 10-year period applies.
A taxpayer omits income from their tax return. The 6-year extended SOL under Section 6501(e) applies only to omissions that exceed:
Explanation: The 6-year SOL requires an omission of more than 25% of gross income reported on the return. Adequate disclosure on the return prevents the 6-year rule from applying to that item. Answer C is correct. Dollar thresholds (A, D) and 10% (B) are not the standard.
Which of the following suspends or tolls the statute of limitations for assessment?
Explanation: Under Section 6503(a), the statute of limitations for assessment is suspended during the period after the IRS mails a statutory notice of deficiency in which the IRS is prohibited from assessing the tax, plus 60 days. Answer B is correct. Filing a Tax Court petition (A) occurs in response to the notice of deficiency and prolongs the prohibition on assessment, but the notice itself is what triggers the tolling. An installment agreement request (C) tolls the collection SOL, not the assessment SOL. Failure to pay (D) does not suspend or toll the assessment statute.
A taxpayer who has not filed a return for 5 years may be assessed tax for:
Explanation: The SOL never begins for unfiled returns - it only starts running once a return is filed. All unfiled years remain open for assessment indefinitely. Answer A is correct. The 3-year bar (B) requires a filed return to start running. Only the current year (C) is incorrect. The SOL is not limited to documented income years (D).
A taxpayer's foreign tax credit carryforward from 10 years ago is now being used. The IRS wants to challenge the carryforward amount. Can the IRS revisit the year the credit originated?
Explanation: Once a year is closed by the SOL, the IRS cannot assess additional tax for that year. However, the IRS may challenge carryforward amounts by examining the current year - limiting the carryforward to what was actually allowable. Answer B is correct. The IRS cannot freely reopen closed years (A). Carryforwards don't reopen the originating year (C). The IRS may still limit carryforward amounts (D).
Which of the following actions by a taxpayer can restart or extend the statute of limitations?
Explanation: Form 872-A is an open-ended consent that extends the SOL indefinitely until terminated - stronger than Form 872's fixed extension. Answer D is correct. Paying taxes (A) doesn't affect the SOL. Superseding returns (B) replace the original but don't generally extend the SOL. Voluntary disclosure (C) may affect penalties but doesn't restart the SOL.
The statute of limitations for estate tax assessment is generally:
Explanation: Estate tax follows the same 3-year general SOL (from Form 706 filing or due date) and 6-year extended SOL for omissions exceeding 25% of the gross estate. Answer A is correct. 5 years from death (B) is not the standard. 10 years (C) is the collection SOL. Estate tax SOL is not unlimited (D).
A taxpayer files a return showing a $0 tax liability but has unreported income. The SOL for the IRS to assess tax runs for:
Explanation: A return showing zero tax still starts the SOL running if it is properly filed. The 3-year general period applies. The 6-year extension would apply only if the omission exceeds 25% of gross income. Answer C is correct. Zero tax doesn't prevent the SOL from running (A). The 6-year period is not automatic (B). 1 year is not the standard (D).
A taxpayer made a substantial gift but failed to report it on Form 709. How long does the IRS have to assess gift tax?
Explanation: The gift tax SOL only starts running when Form 709 is filed. If no return is filed for a taxable gift, the IRS can assess gift tax at any time. Answer D is correct. SOL doesn't run from the gift date without a filed return (A, B, C).
The collection SOL under Section 6502 may be extended when:
Explanation: Under Section 6331(i) and (k), submitting an offer in compromise suspends the 10-year collection SOL while the offer is pending, for 30 days after rejection, and while any Tax Court proceeding challenging the rejection is pending. Answer A is correct. Answer B is incorrect because an installment agreement does not automatically suspend the collection SOL merely by being in effect - the 10-year period continues to run unless a waiver is executed or the agreement is entered into before the collection period would otherwise expire under Section 6502(a)(2). Issuing a levy (C) is a collection action that must occur within the 10-year period - it does not extend it. Partial payment (D) does not extend the collection SOL.
A taxpayer is audited and the 3-year SOL is about to expire. The IRS requests that the taxpayer sign a Form 872 to extend the SOL. The taxpayer may:
Explanation: Taxpayers are not required to sign Form 872 - consent is voluntary. However, refusing may cause the IRS to issue a deficiency notice before the SOL expires to protect its rights. Answer B is correct. Signing is not mandatory (A). The IRS doesn't need to agree to limit the audit for the taxpayer to sign (C). Ignoring has consequences (D) - the IRS will protect its rights.
An individual's tax return for 2020 was filed April 15, 2021. The IRS mails a notice of deficiency on April 14, 2024. Which of the following is correct?
Explanation: The 3-year SOL expires April 15, 2024. The notice mailed April 14, 2024 is within the period - the IRS has until the last day of the period (April 15) to mail the notice of deficiency, so April 14 is timely. Answer A is correct. April 15 (B) is the last day, not an expiration that has passed. April 14 (C) is before the expiration date. No consent was required (D).
For purposes of the 6-year extended SOL, which of the following is treated as an omission from gross income?
Explanation: Under Section 6501(e)(1), the 6-year SOL applies to omissions from gross income - amounts that are not disclosed in the return or in attached schedules so that the IRS has adequate information to compute the correct tax. Routine timing errors (C) and nondeductible expense claims (A) are generally subject to the 3-year SOL because the income itself was reported. A basis overstatement (B) is more nuanced: if a taxpayer overstates basis on an asset sale and the overstatement results in a 25% or greater understatement of gross income, current law (post-2012 regulations and subsequent guidance) may treat the resulting omission as subject to the 6-year period. Answer D is the clearest example of a traditional omission from gross income - amounts received and not reported.
A taxpayer files their return on July 15, having received a valid extension to that date. The 3-year statute of limitations for assessment runs from:
Explanation: When a return is filed on or before the extended due date, the 3-year period runs from the actual filing date (the extended due date). Answer A is correct. The original due date (B) would apply only if the return was filed before it. Extension grants (C) are not the starting point. October 15 (D) would be a further extension.