TL;DR - Tornado Cash was delisted from US sanctions in March 2025, but funds that touched the mixer can still raise your risk score and trigger an exchange freeze, because compliance teams set their own rules.
For two and a half years, any wallet that touched Tornado Cash carried a hard sanctions flag. Then in March 2025 the US Treasury removed the mixer from its blocklist, and a lot of people assumed the problem went away with it. It did not. The legal status of the protocol changed, but the way exchanges score wallet risk did not move in lockstep. If your address has Tornado Cash in its history, you can still hit a hold or a frozen account when you deposit to a centralised exchange.
What changed when OFAC delisted Tornado Cash?
The Office of Foreign Assets Control, the sanctions arm of the US Treasury, had placed Tornado Cash on its Specially Designated Nationals list in August 2022. That designation made it illegal for US persons to interact with the mixer's smart contracts at all. In November 2024, the Fifth Circuit Court of Appeals ruled in Van Loon v. Treasury that the immutable smart contracts behind Tornado Cash are not property under the statute OFAC relied on, so the agency had overstepped its authority.
On 21 March 2025, OFAC formally removed Tornado Cash from the SDN list. The blanket prohibition is gone. Interacting with the protocol's contracts is no longer an automatic sanctions breach, and the TORN token jumped on the news. What did not change is the underlying view of mixers among compliance teams: delisting is not approval, and laundering stolen funds through a mixer remains a crime regardless of the protocol's listing status.
Does Tornado Cash exposure still flag your wallet?
Yes, in practice it often does. A sanctions list and an exchange risk engine are two different things. OFAC removing an entry tells you that a specific legal prohibition no longer applies. It does not tell the risk model at your exchange to stop caring about mixer activity, and most of those models still treat Tornado Cash as a high-risk source.
The delisting cleared the legal prohibition, but each exchange runs its own risk model, and most still score Tornado Cash exposure as high-risk.
There are good reasons for that. Tornado Cash is still the most heavily analysed mixing protocol in blockchain forensics, and a lot of stolen and sanctioned money has moved through it over the years. An exchange that lets mixer-linked deposits through without question is taking on regulatory and reputational risk it would rather avoid. So the safe default for a compliance team is to keep flagging, hold the deposit, and ask the customer to explain where the funds came from.
Why do exchanges still treat mixer funds as high-risk?
Exchanges operate under their own anti-money-laundering obligations, and those obligations did not loosen because one court case went a particular way. Their licences, their banking relationships, and their own regulators all expect them to scrutinise funds with a mixing history. A delisting from one country's sanctions list does not rewrite the global rulebook those firms answer to.
Risk scoring is also about more than a single binary flag. A modern model weighs how close your wallet sits to a mixer, how much of your balance traces back to one, and whether other red flags stack on top. A direct withdrawal straight out of Tornado Cash reads very differently from funds that passed through several clean hops first. Either way, the mixer link is a data point the model keeps, and it can be enough on its own to send your deposit into manual review.
How do you check your wallet for Tornado Cash exposure?
The manual route is to read the transaction history yourself. A block explorer such as Etherscan lets you trace where your funds came from, and you can compare addresses against the lists of known Tornado Cash router and pool contracts that researchers publish. This works for a single direct deposit, but it falls apart fast once funds have moved through several hops or across more than one chain, which is exactly where indirect exposure hides. Rather than tracing each hop by hand, screen your address with Plastron to see sanctions, mixer, and stolen-funds exposure across Ethereum and six chains at once.
Direct withdrawals carry the strongest flag, but exposure that arrives through intermediate hops still shows up in a thorough risk score.
Checking before you move funds turns a nasty surprise into a decision you control. If your wallet comes back clean, you have a record that you looked. If it lights up against the mixer, you learn that now, rather than after an exchange has locked your balance and asked for a source-of-funds letter you were not ready to write.
What should you do if your wallet touched Tornado Cash?
Do not assume the delisting clears you, and do not try to hide the history, because the chain is public and permanent. The better path is to document where the funds originated and why they are legitimate. If you used the mixer for ordinary privacy with your own clean funds, keep the records that show that: the original source, the deposit, and the withdrawal.
If you are about to deposit to an exchange, screen the wallet first so you know what their risk engine will see. Where exposure is indirect and small, a clear explanation often resolves a review. Where it is direct and large, expect more questions, and consider getting advice before you move anything. The aim is a documented, honest account of your funds, not a gamble that nobody will look.
FAQ
Is it now legal to use Tornado Cash after the delisting?
Interacting with the smart contracts is no longer barred by the OFAC sanction that was removed in March 2025. Using a mixer to launder stolen or sanctioned funds remains a crime, and exchanges can still refuse or freeze deposits with mixer history under their own policies.
Will an exchange still freeze my deposit if it came from Tornado Cash?
It can. Exchanges run their own risk models, and most still score mixer exposure as high-risk regardless of the delisting. A deposit with Tornado Cash in its history can be held for manual review or frozen pending a source-of-funds explanation.
Does indirect exposure to Tornado Cash count against me?
Often yes, though less heavily than a direct withdrawal. Risk models trace funds across multiple hops, so money that passed through the mixer before reaching you can still register. The more hops and the smaller the share, the weaker the flag tends to be.
How do I prove my mixer-linked funds are clean?
Keep documentation of the original source of the funds and the path they took, including the deposit into and withdrawal from the mixer. A clear, consistent source-of-funds record is what compliance teams want, and screening your wallet first tells you what they will see.
Disclaimer: This article is for educational and informational purposes only and is not legal, financial, tax, or compliance advice. Crypto carries risk; you act on this information at your own risk. Always do your own research and consult a qualified professional before making decisions. Views are the author's own and do not constitute financial, legal, or investment advice.
About Plastron
Plastron is a free, non-custodial wallet screening tool. It checks Ethereum and six EVM chains for AML and KYT risk — sanctions exposure, mixer contact, and stolen-funds proximity — and returns a risk report in seconds. It reads public on-chain data only: it never takes custody of funds and never asks for private keys.