The U.S. Department of the Treasury's Office of Foreign Assets Control (OFAC) published a rule on September 29, 2026 amending the Cuban Assets Control Regulations (CACR), 31 C.F.R. Part 515, to implement Executive Order 14404 of May 1, 2026 and portions of the President's Cuba policy, alongside new Cuba-related FAQs 1271 to 1275 and an alert titled "Expanded Sanctions Against Cuba." The rule is available for public inspection and takes effect upon publication in the Federal Register on September 30, 2026.

U.S. financial institutions with Cuba-related correspondent banking or payment activity, U.S. importers, exporters and travel companies with Cuba exposure, international banks routing Cuba-adjacent transactions through USD clearing, and OFAC screening-software operators must immediately update their Cuba sanctions filters and review Cuba-related transactions and counterparties against the amended CACR, the E.O. 14404 designations, FAQs 1271 to 1275 and the alert, or face OFAC strict-liability civil penalties per violation, blocked or rejected transactions, and potential criminal exposure for willful violations of the CACR.

What changed in the Cuba sanctions framework?

The September 29, 2026 package bundles four regulatory moves with a body of guidance. OFAC amended the CACR to implement portions of the President's foreign policy toward Cuba, and published standalone regulations to implement E.O. 14404, "Imposing Sanctions on Those Responsible for Repression in Cuba and Threats to the United States National Security and Foreign Policy," signed May 1, 2026. In the same release, OFAC amended the Iranian Transactions and Sanctions Regulations (ITSR) to incorporate E.O. 13902 of January 10, 2020 on additional Iranian sectors, and reorganized its entire CFR chapter by eliminating more than 100 subparts to make delegations of authority, recordkeeping, reporting and Paperwork Reduction Act information easier to locate.

OFAC supplemented the rules with five new Cuba-related FAQs (1271 to 1275) and 29 amended Cuba-related FAQs, and published an OFAC Alert, "Expanded Sanctions Against Cuba," which highlights increased sanctions risks for transactions involving Cuba. The full release is on the OFAC recent actions page.

ComponentWhat it doesEffective
CACR amendment (31 CFR Part 515)Implements portions of the President's Cuba policySeptember 30, 2026
E.O. 14404 implementing regulationsCodifies the May 1, 2026 Cuba sanctions orderSeptember 30, 2026
ITSR amendmentIncorporates E.O. 13902 on Iranian additional sectorsSeptember 30, 2026
CFR reorganizationRemoves 100+ subparts, consolidates delegations and reportingSeptember 30, 2026
FAQs 1271 to 1275 and 29 amended FAQsNew and updated Cuba guidanceSeptember 29, 2026
"Expanded Sanctions Against Cuba" alertFlags increased Cuba transaction riskSeptember 29, 2026

Who is exposed to the amended rules?

OFAC sanctions reach broadly through U.S. person status, USD clearing, and the reexport doctrine, so the Cuba changes touch several categories by market exposure. U.S. financial institutions that run Cuba-related correspondent banking or payment activity are the primary audience: the alert signals heightened enforcement risk exactly where transaction screening happens. International banks routing Cuba-adjacent transactions through USD clearing face the same exposure whenever a payment touches the U.S. financial system.

U.S. importers, exporters and travel companies with Cuba exposure must reconcile their licenses and counterparties against the amended CACR, and OFAC screening-software operators at U.S.-person firms must push the updated lists and interpretive guidance into their filters. The 50 Percent Rule still applies: any entity 50 percent or more owned in the aggregate by blocked persons is itself blocked even when not separately listed.

What must compliance teams update, and by when?

The rules take effect on September 30, 2026, so the window is immediate. Compliance teams should treat the package as several distinct work items rather than a single filter refresh:

  • Update sanctions screening filters and list feeds for the amended CACR and the E.O. 14404 designations, and verify 50 Percent Rule logic against any Cuba-linked ownership.
  • Review pending and recent Cuba-related transactions and correspondent banking activity against the amended CACR and FAQs 1271 to 1275.
  • Re-map internal references to OFAC's CFR chapter, because the reorganization eliminated more than 100 subparts and moved delegations, recordkeeping and reporting provisions.
  • Read the "Expanded Sanctions Against Cuba" alert and brief front-line payment screening and correspondent banking staff on its heightened-risk signal.
  • Assess Iran exposure under the ITSR amendment incorporating E.O. 13902, separately from the Cuba work.

What are the penalties for getting a Cuba transaction wrong?

OFAC operates a strict-liability regime: civil penalties attach for CACR violations without proof of intent, and voluntary self-disclosure can materially mitigate a penalty under 31 CFR Part 501, Appendix A. Beyond civil penalties, blocked or rejected transactions, and reputational fallout, willful violations expose firms and individuals to criminal liability. The "Expanded Sanctions Against Cuba" alert is a deliberate signal that OFAC sees elevated risk and expects firms to respond with refreshed controls, not reliance on prior Cuba guidance.

Continuous, per-jurisdiction monitoring of OFAC's recent-actions feed surfaces this kind of codification when it publishes, before a missed filter update turns into a blocked payment.

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Next steps: confirm your screening vendor has pushed the amended CACR and E.O. 14404 designations, re-walk every open Cuba-related transaction and correspondent relationship against FAQs 1271 to 1275, update internal CFR citations after the subpart reorganization, and brief screening and sanctions-investigations staff on the alert's heightened-risk signal.