International Banking Facility: Exemptions and Transaction Rules

An International Banking Facility, or IBF, is a separate set of asset and liability accounts that a U.S. banking institution keeps on its own books to handle deposits and loans with foreign customers, free from certain domestic banking regulations. The Federal Reserve authorized IBFs in December 1981 to let American banks compete for Eurodollar business without moving operations offshore.¹ The trade-off is straightforward: the institution accepts strict limits on who it can serve and how the funds can be used, and in exchange it gets relief from reserve requirements and other domestic rules on that segment of its business.

An IBF Is an Accounting Structure, Not a Branch

An IBF is not a separate building, subsidiary, or legal entity. It exists as a group of accounts segregated on the books of the parent institution. Domestic business sits on one set of books; the IBF’s international transactions sit on another. That accounting wall is the entire structure.²

Four types of institutions can establish one: depository institutions (commercial banks, savings associations, and credit unions), U.S. branches or agencies of foreign banks, Edge Act corporations, and Agreement corporations.² The IBF’s sole purpose is transacting with non-U.S. counterparties, which lets it function like an offshore bank located on American soil.

The Exemptions That Make an IBF Worthwhile

Without the IBF framework, a bank handling international deposits through its regular books would carry the same regulatory costs as a domestic deposit, making it impossible to match rates offered by banks in London, the Cayman Islands, or Singapore.

Reserve Requirements Under Regulation D

The primary advantage is exemption from reserve requirements under Regulation D. Ordinarily, banks must hold a percentage of certain deposits at the Federal Reserve, tying up funds that could otherwise be lent or invested. IBF deposits and borrowings from foreign customers sit outside that requirement, which lowers the institution’s cost of funds on the international book.²

This exemption did the heavy lifting when reserve ratios sat at 10% or higher. The Federal Reserve reduced reserve requirement ratios to zero in March 2020, which narrows the current practical gap between IBF and domestic deposits. The exemption itself remains in place and would matter again if reserve ratios rose.

Regulation Q, Now Repealed

IBFs were originally also exempt from Regulation Q, which capped the interest rates banks could pay on deposits. That let IBFs offer market-rate returns to foreign depositors while domestic depositors were held below the market. The Dodd-Frank Act repealed Regulation Q as of July 21, 2011, so this advantage no longer applies.³

State Tax Treatment

When IBFs were first authorized, several states offered tax incentives to attract IBF activity. New York, competing directly with London, adopted favorable tax treatment for IBF income, and other major banking states followed. These provisions vary by state and have shifted over the decades, so the tax picture depends on where the parent institution operates.

Who an IBF Can Do Business With

Eligibility rules are strict and form the backbone of the framework. Every transaction must involve a foreign counterparty or another IBF, and the rules split those counterparties into two categories.

Banks, Other IBFs, and Government Entities

An IBF can accept deposits from and lend to the following without the tighter conditions that apply to nonbank customers:

Foreign offices of another U.S. depository institution, Edge corporation, or Agreement corporation.
Any office of a foreign bank located outside the United States.
Other IBFs.
The parent institution itself, whether its U.S. or non-U.S. offices.
Foreign national governments and their agencies, plus international organizations of which the United States is a member.

That last category covers a long list of entities the Federal Reserve Board has specifically designated, such as the Bank for International Settlements, the European Central Bank, and various regional development banks.⁴ Deposits from these institutional counterparties need only remain on deposit overnight.⁵

Nonbank Foreign Customers

IBFs can also serve non-U.S. residents and foreign affiliates of U.S. corporations, but under tighter conditions. The funds must be used only to support operations outside the United States, and the IBF must collect a written acknowledgment from the customer confirming this at the start of any deposit or credit relationship.²

IBFs are otherwise prohibited from taking deposits from or lending to U.S. domestic residents or entities. The narrow exceptions are transactions with the parent institution and with certain foreign affiliates of U.S. corporations where the funds stay outside the country.

Transaction Rules: Amounts, Maturities, and Form

IBFs operate as wholesale facilities, not retail banks. The rules enforce that through minimum amounts and maturity floors.

Minimum Deposit and Withdrawal Size

For nonbank customers, no deposit or withdrawal below $100,000 is permitted. The only exception is a withdrawal under that threshold that closes the account entirely.⁵ This minimum does not apply to transactions between IBFs, foreign banks, or the other institutional counterparties above.

Maturity and Notice Periods

Deposits from other IBFs, foreign bank offices, foreign governments, and international organizations need only stay on deposit overnight. Nonbank customer deposits face a stricter rule: a maturity or required notice period of at least two business days.⁵ The two-day condition can be structured as a fixed maturity date, a set time period, or a written notice requirement under which the depositor gives at least two business days’ advance notice before withdrawing.

Form of Deposits

All IBF time deposits must be represented by a promissory note, acknowledgment of advance, or similar instrument, and the instrument cannot be issued in negotiable or bearer form.² That keeps IBF deposits tethered to the specific depositor relationship rather than circulating like securities.

Lending Rules

On the credit side, an IBF can lend to the same eligible foreign counterparties that can make deposits, and the credit can take the form of standard loans, deposit placements, repurchase agreements, or other instruments.² Loans to nonbank borrowers and foreign affiliates of U.S. companies carry the same use-of-funds condition as deposits: the money must finance operations outside the United States, with a written acknowledgment on file. Loans to other IBFs, foreign bank offices, and international organizations carry no such use-of-funds restriction. IBFs cannot participate in secondary market transactions or activities outside these direct lending categories.⁶

Establishing and Running an IBF

Setting one up requires formal advance notice to the Federal Reserve. The institution must notify the Federal Reserve Bank of its district at least fourteen days before the first reserve computation period in which it intends to operate the IBF. The notice must include a statement that the institution will comply with all IBF rules, including the counterparty restrictions, use-of-funds limits, and recordkeeping obligations.²

Once operating, the institution must keep completely separate books and records for all IBF transactions. This segregation is built into the definition of what an IBF is. The asset and liability accounts must be clearly identifiable as IBF accounts, distinct from domestic business.² The parent is also responsible for verifying that every counterparty qualifies as an eligible foreign customer, which typically means collecting and maintaining residency documentation.

What Happens If the Rules Are Broken

The Federal Reserve does not treat IBF violations as minor administrative lapses. A failure to comply with the segregation rules, counterparty restrictions, or recordkeeping obligations can produce one of two outcomes: the IBF’s transactions become subject to standard reserve requirements under Regulation D, wiping out the cost advantage, or the institution loses the ability to operate an IBF at all.² Either outcome is severe enough that institutions running IBFs invest heavily in compliance systems to keep their international and domestic books cleanly separated.

1
Federal Reserve. International Banking Facilities
2
eCFR. 12 CFR 204.8 – International Banking Facilities
3
Federal Reserve. Federal Reserve Issues Final Rule to Repeal Regulation Q
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eCFR. 12 CFR 204.125 – Designated International Entities
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eCFR. 12 CFR 204.8 – International Banking Facilities
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eCFR. 12 CFR 204.122 – Secondary Market Activities of International Banking Facilities