Can a Bitcoin address be blacklisted?

Bitcoin itself has no blacklist built in, but governments, exchanges and screening services list addresses, and funds from them can be frozen when they reach a regulated business.

Yes. Tether can freeze USDT held at a specific address, and Circle can do the same for USDC.

Is it illegal to send crypto to a sanctioned address?

For people and companies under US jurisdiction, dealing with an OFAC-listed address is prohibited, even by mistake. Other countries have similar rules.

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How to check if a crypto wallet is blacklisted or sanctioned

What a crypto blacklist is, who maintains them (OFAC, stablecoin issuers, exchanges, fraud databases), how to check a wallet in seconds, and what to do if yours is flagged.

Check an address now

A "blacklisted" wallet is one that a government, a token issuer, an exchange or a fraud-intelligence source has tied to crime or sanctions. Sending to one can mean losing the funds, having your own account frozen or, for sanctioned wallets, breaking the law.

Who keeps the lists

Governments. The US Treasury's OFAC lists cryptocurrency addresses on its Specially Designated Nationals (SDN) list. US persons may not deal with them, and other countries keep similar lists.
Stablecoin issuers. Tether (USDT) and Circle (USDC) can freeze their tokens at specific addresses, often at the request of law enforcement.
Exchanges and compliance firms. They screen deposits and withdrawals and may freeze funds linked to listed wallets.
Fraud databases and victims. Public scam, phishing and ransomware datasets, and reports from people who were targeted.

How to check a wallet

Paste the full address into the BlacklistChain address check. It searches every list we track across all supported chains and shows the category, risk score and source of any match.
For sanctions, you can confirm against the official OFAC sanctions search.
Browse the full register by chain in the address directory, or ransomware wallets by family on the ransomware page.

For businesses

If you accept or send crypto for customers, screen every counterparty wallet before the transfer and keep a record of the check. The export and API let you screen in bulk or from your own systems. Our methodology explains how listings and risk scores are produced.

If your own wallet is flagged

Use the contact page with the address, chain and your evidence and we will review the listing. Listings that come from an official sanctions list can only be removed by the authority that issued them.

Questions

Can a Bitcoin address be blacklisted?: Bitcoin itself has no blacklist built in, but governments, exchanges and screening services list addresses, and funds from them can be frozen when they reach a regulated business.
Can USDT be frozen?: Yes. Tether can freeze USDT held at a specific address, and Circle can do the same for USDC.
Is it illegal to send crypto to a sanctioned address?: For people and companies under US jurisdiction, dealing with an OFAC-listed address is prohibited, even by mistake. Other countries have similar rules.