Vett Wallet
Check
Check if a wallet address appears on OFAC's blocked cryptocurrency addresses list. Supports BTC, ETH, XRP and more.
Free · No signup · 3 checks per day
How crypto wallets end up on a sanctions list
The U.S. Treasury's Office of Foreign Assets Control (OFAC) adds cryptocurrency addresses to its Specially Designated Nationals (SDN) list when an address is tied to a sanctioned person, entity, or activity — ransomware operators, darknet markets, sanctioned exchanges, terrorist financing, or state-linked hacking groups. When OFAC designates a person, it now routinely publishes the specific blockchain addresses they control as identifiers under the listing, covering Bitcoin, Ethereum, Monero, and other chains.
Because blockchains are public and immutable, a flagged address stays visible forever. The transactions that touched it remain on-chain, which is exactly why screening before you transact — not after — is what protects you.
What it means when a wallet is flagged
A flagged address is one OFAC has designated as blocked property. U.S. persons and businesses are prohibited from transacting with it, and funds connected to it must be frozen and reported. Sanctions liability is strict: sending or receiving value from a blocked address can constitute a violation even if you did not know the counterparty was sanctioned. A match on this tool means you should stop and investigate before moving any funds.
Industries that need wallet screening
- Exchanges and on-ramps — must screen deposit and withdrawal addresses as part of their AML obligations.
- DeFi and wallet providers — increasingly expected to block interactions with sanctioned addresses at the interface level.
- Payment processors and merchants accepting crypto — need to confirm incoming funds are not from a blocked source.
- OTC desks, funds, and custodians — screen counterparty addresses during onboarding and settlement.
How often the crypto address list changes
OFAC updates the SDN list on no fixed schedule — designations are published whenever enforcement actions warrant, sometimes several times a month and sometimes adding hundreds of addresses at once. There is no “safe” cutoff: an address that is clean today can be designated tomorrow. This tool checks against the most recent published list, so re-screen high-value or recurring counterparties regularly.
Frequently asked questions
Which blockchains are covered?
The check matches any address string OFAC has published as an identifier, including BTC, ETH, XMR, and others — the screen is address-exact, so paste the full address.
Is a clear result a guarantee?
No. It means the address does not appear on the most recent list refresh. It is not a guarantee about the address's full transaction history or future status.
This tool provides informational screening results and is not legal advice. Confirm any potential match against OFAC's official SDN list before taking action.