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Proposed rule

Guidance on Tax-Exempt Refunding Bonds

Built by the Tribune's code from the Federal Register. No AI wrote this page. Published in the Federal Register March 12, 2026. Document 2026-04798. Updated Nov. 13, 2026.

What it does

This document contains proposed regulations that would update certain arbitrage rules and definitions applicable to tax-exempt and other tax-advantaged bonds by clarifying the time and manner for requesting refunds of overpayment of rebate to the United States, the special transition rule for transferred proceeds, the limitation on allocations to expenditures, and the IRS address for filing defeasance notices. These proposed regulations would also revise the provision addressing certain perpetual State guarantee funds, the definition of tax-exempt bond, and the definition of refunding issue. The proposed regulations would affect issuers of tax-advantaged bonds.

The Internal Revenue Service's summary, as published in the Federal Register.

What it would change

1 part of Title 26 of the Code of Federal Regulations:

26 CFR 1

Before this

No earlier Federal Register document under regulation identifier 1545-BQ20 since Jan. 1, 2025.

Since then:

What happens next and when

Electronic or written comments and requests for a public hearing must be received by May 11, 2026.

The agency's dates, word for word.

Document number2026-04798
ActionNotice of proposed rulemaking.
AgenciesTreasury Department; Internal Revenue Service
PublishedMarch 12, 2026
Comments closeMarch 11, 2026
Regulation identifier (RIN)1545-BQ20
DocketIRS-2026-0331

Source: the Federal Register (public domain). The document in the Federal Register