IRC 6511 refund claims: 3-year lookback and April 15 deemed paid

Answer A. A refund claim must be filed within the later of 3 years after the return was filed or 2 years after payment. Diaz's claim (May 30, Year 7) was filed within 3 years of the June 30, Year 4 return, so it is timely, but the refundable amount is limited to tax paid during the applicable period of limitations. Withholding is treated as paid on the return's original due date (April 15, Year 2) and falls outside the 3-year period before the May 30, Year 7 claim, so only the $1,500 paid with the late-filed return is within the lookback and refundable.

Why not B: This answer confuses the two-year-from-payment rule with the timeliness test: the statute also allows a claim within 3 years after filing the return. Diaz's claim meets the 3-year-from-filing test, so the claim is timely even though some payments may be outside the refundable period.

Why not C: While the claim is timely under the 3-year-from-filing rule, this choice ignores the separate limitation on the amount refundable: only taxes paid within the applicable period of limitations are recoverable. The withholding was deemed paid on April 15, Year 2 and falls outside that period here.

Why not D: This misstates the timing rule for withholding: for refund/limitation purposes, withholding is generally treated as paid on the original due date of the return (not the date wages were earned), so the withholding payment date here precedes the refund lookback and is not recoverable.

Answer A. Income tax withheld from wages is treated as paid on the original return due date (April 15, Year 2). Under IRC §6511, refundable amounts are limited to tax paid within the three years preceding the filing of the refund claim. Lane's July 10, Year 5 claim reaches back only to July 10, Year 2, so the deemed payment date (April 15, Year 2) falls outside the three‑year lookback and the $1,700 is not refundable.

Why not B: This is tempting because late filing feels dispositive, but it overstates the rule. A late original return can still serve as a refund claim; the real question is whether the taxes were paid within the statutory lookback period (and when withholding is deemed paid), not simply that the return was filed late.

Why not C: This tempts because an original return can constitute a refund claim and a student may focus solely on whether a claim was filed. It fails because claim timeliness is only one issue, the refundable amount is separately limited by the three‑year lookback measured from the claim date, and the withheld tax predates that window.

Why not D: This tempts because reasonable cause can excuse penalties or late filing consequences. It fails because reasonable cause does not extend the statutory three‑year lookback for refunds nor change the date on which wage withholding is deemed paid.

Answer D. Under §6511(a) a refund claim attached to a return is treated as filed on the date the return is filed, so Patel's claim filed with the Year 1 return on September 20, Year 5 is timely. For the amount limit, §6511(b)(2) restricts refunds to tax paid during the three years preceding the claim and requires including any properly granted filing extension when computing that three‑year period: three years before September 20, Year 5 is September 20, Year 2, and adding the 6‑month extension moves the cutoff to March 20, Year 2. Wage withholding for Year 1 is treated for these purposes as paid on the original due date (April 15, Year 2), which falls after March 20, Year 2, so the full $9,600 is within the allowable lookback and refundable.

Why not A: Tempting because test takers often default to the original due date, but §6511(a) treats a claim attached to a return as filed on the return's filing date; the timeliness element is satisfied here, and the real question is whether the withholding falls within the §6511(b)(2) lookback.

Why not B: This correctly identifies the deemed‑payment date for withholding but errs by omitting the effect of the 6‑month filing extension; §6511(b)(2) requires including that extension, which moves the cutoff before April 15, Year 2 and puts the withholding inside the allowable period.

Why not C: This reaches the correct dollar amount for the wrong reason: withholding is generally treated as paid as of the original due date, not the extended due date; the extension expands the lookback window, it does not change the payment date.

Answer C. A claim filed with an original return can still be timely under the general refund-claim timing rule, but receipt of a timely claim does not by itself guarantee refundability of older payments. For refund limitation purposes, wage withholding is generally treated as paid on the original return due date (April 15, 20X2). Because that deemed payment date falls outside the 3-year lookback measured from the May 1, 20X5 claim filing, none of the claimed overpayment is refundable.

Why not A: This applies the timeliness rule but stops too soon. Even if the claim is timely, the availability of a refund is separately limited by the lookback rule; here the deemed payment date is outside the 3-year period.

Why not B: This is overly broad. A late-filed return can still include a timely refund claim under the general timing rules; the real issue is whether the payments being claimed fall within the statutory lookback periods.

Why not D: This treats withholding as if each paycheck payment governed refundability. For limitation purposes, wage withholding is typically deemed paid on the original return due date, not on each pay date; that deemed date here is outside the 3-year lookback.

Answer D. Under IRC §6511(a) a refund claim is treated as filed when the return is filed, so a late original return can serve as the claim for refund. IRC §6511(b)(2) then limits the refundable amount to payments of tax made within the 3-year period immediately preceding the date the claim is filed (with a separate 2-year-from-payment alternative). For lookback purposes withholding is generally treated as paid on the return's original due date (see §6513(b)), so the $9,000 withheld is treated as paid on April 15, 20X2 and falls outside the 3-year window for a claim filed September 5, 20X5. The $2,500 paid in August 20X3 lies within the 3-year lookback and therefore is the refundable amount.

Why not A: Incorrect because a late original return may qualify as a claim for refund under §6511; the issue here is which payments fall within the statutory lookback window, not a blanket prohibition on late returns serving as claims.

Why not B: Tempting because total payments ($11,500) exceed the $6,000 liability, yielding a $5,500 overpayment. However, §6511(b)(2)'s 3-year lookback restricts refunds to payments made within the 3 years before the claim was filed; the $9,000 withholding is treated as paid on April 15, 20X2 and is outside the lookback for a 9/5/20X5 filing.

Why not C: This confuses the limitations measurement. §6511(a) measures timeliness from the date the return or claim is filed (or 2 years from payment), not simply from the original due date; a late original return can still constitute a timely claim under §6511, though the §6511(b)(2) lookback may limit which payments are refundable.