Leah BadachCES · 1031 Exchange Specialist
Source explainer

How IRS disaster relief can postpone 1031 exchange deadlines (Rev. Proc. 2018-58, Section 17)

The 45- and 180-day deadlines have no routine extensions, but Section 17 of Rev. Proc. 2018-58 lets the IRS postpone them after a federally declared disaster. The relief is not automatic: it depends on the wording of the IRS news release for that disaster, on when your sale closed, and on whether you qualify as an affected taxpayer or meet one of the listed difficulty tests.

Source: Rev. Proc. 2018-58, Internal Revenue Bulletin 2018-50 Source date: December 10, 2018 Page updated: September 6, 2026
Editorial status: source explainer prepared from Rev. Proc. 2018-58 and the IRS disaster-relief index; quotations checked against the IRB text on 2026-09-06. Professional review by Leah Badach: pending. Until then, treat this page as a guide to the source, not as advice. Content approval: Claude Code (implementation agent), source-verified against the cited primary documents (implementer / editorial approval — NOT Leah Badach's professional review), September 6, 2026, tied to this version. Source retrieved: September 6, 2026.
Source publishedDecember 10, 2018
JurisdictionUnited States (federal)
Applies toTaxpayers in a Section 1031 exchange whose 45-day identification or 180-day exchange deadline falls on or after the date of a federally declared disaster, when the IRS relief for that disaster covers acts listed in Rev. Proc. 2018-58.
Source identifierRev. Proc. 2018-58
RetrievedSeptember 6, 2026
Page publishedSeptember 6, 2026
Page updatedSeptember 6, 2026
Official source

What was published or changed

Rev. Proc. 2018-58 (published in Internal Revenue Bulletin 2018-50, December 10, 2018) is the IRS’s standing list of time-sensitive acts that may be postponed under Internal Revenue Code §7508A after a federally declared disaster. It is not new guidance and it is not itself a grant of relief. It is switched on each time an IRS news release for a specific disaster says it postpones “other time-sensitive actions described in Treas. Reg. §301.7508A-1(c)(1) and Rev. Proc. 2018-58.”

Section 17 of the revenue procedure contains the special rules for Section 1031 like-kind exchange transactions. It covers the last day of the 45-day identification period, the last day of the 180-day exchange period, and the parallel deadlines in reverse exchanges under Rev. Proc. 2000-37.

Editorial context

Who may be affected, and who is outside its scope

A transferor (the person selling the relinquished property) qualifies for a Section 17 postponement only if both tests are met. First, the relinquished property was transferred on or before the date of the federally declared disaster (for a reverse exchange, qualified indicia of ownership were transferred to the exchange accommodation titleholder on or before that date). Second, the taxpayer either is an “affected taxpayer” as defined in the IRS news release for that disaster, or has difficulty meeting the deadline because of the disaster for one of the listed reasons or a similar one.

The listed difficulty reasons are broader than the location of the property: (A) the relinquished or replacement property is in the covered disaster area; (B) the principal place of business of any party to the transaction, including the qualified intermediary, exchange accommodation titleholder, transferee, settlement attorney, lender, financial institution, or title insurance company, is in the covered area; (C) a party or an involved employee is killed, injured, or missing; (D) an exchange document or land record is destroyed, damaged, or lost; (E) a lender will not fund because of the disaster or because hazard insurance is unavailable; (F) a title insurer cannot issue the required policy.

Outside the scope: a sale that closes after the disaster date; a disaster whose IRS release does not cover time-sensitive acts under Rev. Proc. 2018-58; and any other tax deadline. Section 17.04 says a taxpayer who qualifies only under the difficulty tests (not as an affected taxpayer) gets no other relief from the release.

Editorial context

What dates matter

A qualifying deadline that falls on or after the disaster date is postponed to the later of 120 days after the original deadline, or the last day of the general postponement period stated in the IRS release for that disaster.

Two hard caps apply regardless: the postponed date can never run past the due date (including extensions) of the taxpayer’s tax return for the year of the transfer, and never past one year.

Section 17.03 adds one backward-looking rule: a 45-day identification deadline that fell before the disaster is also postponed if an identified replacement property was substantially damaged by the disaster.

Example of the wording that triggers Section 17, from the 2026 Indiana release (IN-2026-01): affected taxpayers have until February 1, 2027 “to perform other time-sensitive actions described in Treas. Reg. § 301.7508A-1(c)(1) and Rev. Proc. 2018-58” that were due on or after August 11, 2026 and before February 1, 2027. A 1031 deadline in that window for a qualifying Indiana taxpayer would move to the later of 120 days or February 1, 2027, subject to the two caps.

Official source

What the source actually establishes

Rev. Proc. 2018-58, Section 17.01: “Taxpayers are provided the relief described in this section if an IRS News Release or other guidance provides relief for acts listed in this revenue procedure (unless the news release or other guidance specifies otherwise).”

Section 17.02(1): the 45-day and 180-day deadlines that fall on or after the disaster date “are postponed by 120 days or to the last day of the general disaster extension period authorized by an IRS News Release or other guidance announcing tax relief for victims of the specific federally declared disaster, whichever is later. However, in no event may a postponement period extend beyond: (a) the due date (including extensions) of the taxpayer’s tax return for the year of the transfer… or (b) one year.”

Section 17.02(2): the transferor qualifies “only if” the relinquished property was transferred on or before the disaster date and the transferor is an affected taxpayer or has difficulty meeting the deadline for the reasons listed as (A) through (F).

Editorial context

What to discuss with your QI, CPA, and attorney

Ask your qualified intermediary to confirm, in writing, which IRS release you are relying on, which test you meet (affected taxpayer or a specific difficulty ground), and the recomputed deadline with both caps applied.

Ask your CPA whether your return due date for the year of sale caps the postponement and whether filing an extension changes the answer.

Keep evidence of the difficulty ground: the lender’s refusal, the title company’s notice, the location of the intermediary’s office, or the damage to the identified property.

If your sale had not yet closed on the disaster date, the postponement does not apply; plan the exchange around the original 45 and 180 days.

Editorial context

What remains uncertain

Each release can “specify otherwise” and limit which acts are postponed. The general pattern above is common but has to be checked release by release.

Whether a reason not listed in (A) through (F) is “similar” enough is a judgment call for your advisers.

State income-tax conformity to the federal postponement is not addressed by the revenue procedure.

The IRS sometimes expands a release to additional counties after the initial announcement; the covered area can change.

Editorial context

Which guides on this site this affects

The 1031 exchange timeline and the deadline calculator now describe relief as conditional rather than automatic, and link here.

The video pages for the 45-day rule and the 180-day rule carry the corrected wording in their written breakdowns.

The FAQ hub entries on extensions should point here.

Primary sources

Limitations: This page explains the text of Rev. Proc. 2018-58 and the standard wording of IRS disaster releases. It does not determine that any particular taxpayer's exchange is postponed. The IRS can limit relief in a specific release, and state conformity varies. Not tax or legal advice.

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How this section is produced, reviewed, and corrected: editorial policy. Found an error? Email [email protected].