In this release, we cover IRB 2026-14 updates, including proposed changes to arbitrage rules, rebate refund timing, transition rules, and filing requirements.
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The Internal Revenue Bulletin (IRB) is the authoritative instrument for announcing official rulings and procedures of the IRS and for publishing Treasury Decisions, Executive Orders, Tax Conventions, legislation, court decisions, and other items of general interest.
INCOME TAX
REG-117298-21, page 784.
The proposed regulations 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, the special transition rule for transferred proceeds, the limitation on allocations to expenditures, and the address for filing defeasance notices.