Regulation D: Reserve Requirements of Depository Institutions
Why this matters
This is a final rule by the Federal Reserve System amending 12 CFR 204 (Regulation D) that establishes a binding new IORB rate applicable to all eligible depository institutions. The amendment has immediate effect (September 17, 2026) and implements a monetary policy decision by the FOMC. The rule affects reserve requirements and interest earnings for banks and credit unions, making it a material prudential/operational change with broad applicability across the banking sector.
AI-generated classification rationale, not a full analysis. Verify with the original Federal Reserve source before acting. Full disclaimer.
What the Federal Reserve said
Final rule. The Board of Governors of the Federal Reserve System ("Board") has adopted final amendments to its Regulation D to revise the rate of interest paid on balances ("IORB") maintained at Federal Reserve Banks by or on behalf of eligible institutions. The final amendments specify that IORB is 3.90 percent, a…
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Context
Board of Governors of the Federal Reserve System (Federal Reserve) — The US central bank and supervisor of bank holding companies and state member banks. We track 92 updates from them.
US financial regulation is overseen by multiple agencies including the SEC, CFTC, Federal Reserve, OCC and FDIC. Browse all United States updates.
This update is classified under Prudential / Capital Requirements and Banking & Credit.