ID Already Linked to Another Account? What It Means and What to Do

One identity, one primary personal account. OKX’s US help page gives the rule a name and spells it out:

The one-account rule refers to one primary personal account under the same servicing entity using the same identity verification; it does not prohibit permitted sub-accounts.

That line comes from an FAQ on accounts whose identity is linked elsewhere, published on 28 August 2026 and updated on 2 September; we read it on 27 September 2026. The page also carries its own caveat that not all products it mentions are available in all jurisdictions. Other exchanges word things differently, but as the sections below show, they start from the same place.

So when the verification screen says your identity is already linked, the check wants one fact settled: does the person on this document already have a primary account, verified or under review? Your document has not been judged fake. Nobody has blacklisted you. The question is simply whose account that is.

What does “identity already linked to another account” mean?

The document is attached to one account, and the account you are using now is trying to attach it a second time. Sub-accounts sit outside the rule; the last clause of the quote above says so.

The block matters because verification is the gate to everything else. Binance’s English FAQ on individual verification (“Updated on 2026-06-05”, read 27 September 2026) says: “All new users are required to complete [Verified] to access Binance products and service offerings, including cryptocurrency deposits and trades.” An account that can’t get past this step can log in, and that’s about it.

The same FAQ adds a line that comes up again below: “Please note: You cannot transfer your account to another person or substitute another person’s ID for your ID.”

Two other messages get mixed up with this one:

• “Email already registered” at sign-up is about a login name, not a person. We cover it in the four email-already-registered cases.
• A rejected verification means the documents didn’t pass review. That calls for corrections or an appeal: verification rejected, and how to fix it.

A linked identity is the third case. The documents are fine and the person is real. That person already has an account.

Do you recognise the masked email address or phone number?

Everything forks here. The ownership FAQ quoted at the top is blunt about it:

If you recognize the masked email address or phone number shown on the identity verification page, continue using the personal account that is already verified or undergoing verification. If you do not recognize it, use the identity-occupation review entry. Do not repeatedly resubmit the same identity documents.

• You recognise it. Maybe an email you signed up with years ago and forgot, or a phone number you have since replaced. Go back to that account. If you can’t get in, the platform’s account recovery is the route, not another round of verification on the new one. Verification already happened, on the old account.
• You don’t. Then it’s a different kind of problem: a relative may have used your document at some point, or someone else did. Both are covered further down.

The last sentence of that quote deserves a pause. A new angle, better light, a fresh scan: none of it changes the fact that an account already exists. In our view, the first thing to stop doing when this message appears is uploading again.

One small snag: the masked version shows only a few characters at each end, and it can look almost like yours. Write down every email and number you have ever used, backup addresses included, and check them one by one. A few minutes, and it decides which of the routes below applies to you.

Closed your old account and still can’t verify the new one?

Closing an account and releasing the identity attached to it don’t necessarily happen at the same moment. The same FAQ again:

Closing an account may not release its identity-verification association immediately. A cooling-off period may apply before you can register or verify another account.

The passage doesn’t give one fixed length for that period. The other two help pages quoted in this guide say nothing about it either (checked 27 September 2026), so we can’t give you a number of days; what your own account page shows is what counts.

The same page also warns: “Do not close, freeze, or move assets solely to bypass identity verification.”

Our reading: if the old account still works and you only want a fresh one, hold off on closing it. Closure doesn’t free the identity straight away, and in the gap you can end up with neither account usable.

Can you transfer KYC verification to a new account?

Here the three exchanges genuinely differ.

Bybit offers it, with conditions. Its help article on transferring identity (“Last updated on 2026-04-27”, read 27 September 2026) says: “Users can now transfer their Verified Identity information from one verified account to another.” Among the conditions the page lists before you start:

• “The identity transfer feature will only be available 24 hours after you complete KYC verification.”
• “The account receiving the Verified Identity must have an unverified status.”
• “The current account and target account will be restricted from Withdrawals and Fiat products for 24 hours after Identity Transfer.”
• Only the verified identity moves; no “assets, or registered email/mobile number associated with the current account will be transferred.”
• “The feature is only available for Individual Identity Verified users but not available for Business Verified accounts.”
• “Your current account will return to unverified status.”

That is only part of the list. The same page also says that accounts holding fiat assets with pending P2P orders or ads can’t transfer; that a P2P order closed within the last 5 days blocks it (“please try again after 5 days”); that open positions have to be dealt with first; that a bank card used for One-Click Buy, or a Tax ID used for a fiat deposit, must be removed beforehand; that holders of the exchange’s own card are advised to terminate it first; and that rewards the current account hasn’t received yet are lost. Read the full list on the page before you start.

Treat those time limits as whatever the page says on the day you try. And note what doesn’t travel: your funds stay where they are.

OKX says it isn’t self-service. “Account merging and identity verification transfer are not standard self-service functions.”

Binance: the one line in its FAQ that touches this is the one quoted earlier, that you cannot transfer your account to another person. In the passages we read, we found no feature for moving a verified identity between accounts. That is our reading of those passages, not a sentence the page itself contains.

Opened the account with a relative’s ID? Putting it in your own name

This can happen when someone wasn’t yet eligible to open an account, or simply found it easier to use a parent’s or partner’s documents. When you later verify with your own ID, the document itself is fine, but the account was never yours to begin with. What that means for ownership of the account and what is in it, we set out in opening an account in a relative’s name.

OKX’s ownership FAQ, quoted at the top, describes a specific way back:

Stop using the other person’s document and submit an identity-ownership correction review through the verification page. The account may remain restricted while ownership is reviewed. Do not ask the document owner to complete additional facial checks on your behalf.

The last sentence is the one to hold on to. The obvious shortcut is to ask your mother or father to do the face scan once more. The platform names that and says don’t. A facial check exists to confirm that the person operating the account is the person on the document; having someone stand in for you creates exactly the situation it is meant to rule out.

Binance’s verification FAQ doesn’t describe a correction process for this case, and we won’t invent one. What it does say is that you cannot substitute another person’s ID for your own.

Think someone used your ID to open an account?

Rule out the simpler explanation first: go through the list from the masked-details section again. If none of your old addresses or numbers match, carry on.

The ownership FAQ’s wording for this case:

Do not submit sensitive identity documents in ordinary chat. Contact customer support. You may be asked to complete a live facial check, provide a valid identity document, and explain why you believe the linked account is not yours.

Read it as a list of things to prepare: your face, your own valid document, and a reason. The reason is the part people skip. Concrete facts you can state yourself (say, that you have never used that email domain) carry more weight than “I didn’t sign up for this.”

Take the warning about chat seriously too. An ID photo sent into a window where you can’t be sure who is reading is out of your hands for good. Where documents go once handed over, and how long they are kept, is covered in where your identity documents actually go.

The same page has a separate answer for twins, which is its own reason this message can appear: “State that you are a twin and follow the form instructions to complete a live facial check and provide your own valid identity document.”

Need a second account? Sub-accounts vs opening another one

Sometimes the whole thing starts because someone wanted to keep part of their money separate. Binance’s verification FAQ already answers that need:

If you already have a verified personal account, you can either create a separate entity account, or use our sub-account feature, which allows you to create up to 5 sub-accounts under your personal account.

“Up to 5” is what the page showed on 27 September 2026; check it when you set one up.

The difference is where the account hangs. A sub-account is created under your verified personal account; the quote itself starts from “If you already have a verified personal account”. A second personal account asks the same document to verify a second primary account, which is exactly what the one-account rule forbids.

If what you want is separate balances or separate strategies, we would look at sub-accounts first. They are the route already built for it.

“Just sign up again through a new link”: why that doesn’t work

Search for this message and you will find a claim going around: a linked ID means you registered before, and if the old account has sat unused for a while, signing up through a fresh registration link and logging in “for the first time” clears it.

The first half can be true: if you recognise the masked details, you did register before. The second half doesn’t follow. The check looks at who is behind the document; which link you arrived through is irrelevant to it. The routes in the help pages quoted here are going back to the linked account, using the review form, or following each platform’s own correction or transfer process. None of them runs through a new sign-up link. That is our conclusion from the text above.

Buying an already-verified account, or paying someone to pass verification for you, belongs in the same drawer. Those break the terms outright; see why “guaranteed verification” services are always a trap.

Which situation are you in?

We put this table together from the sections above; it isn’t any platform’s own classification. Form and button names, where they sit and how long you wait are whatever your account shows.

The hardest cell is usually the first one. Once you know whether you recognise those details, only one row tends to be left.