Why Is My Crypto Exchange Asking for Source of Funds or Source of Wealth?
If Coinbase, Kraken, or Binance asks for source-of-funds or source-of-wealth documents, it usually means compliance review, not stolen crypto. Here is what they want and how to respond without making it worse.
If your exchange suddenly asks for source of funds, source of wealth, or extra proof of where your crypto came from, the first reaction is usually the same:
"Are they about to freeze my account?"
Usually, this request is not an accusation. It is a compliance check.
Coinbase, Kraken, and Binance all document some version of the same idea:
- they may need more evidence about where money or crypto came from;
- they may ask for different documents depending on the asset source;
- the review is easier when your documents clearly match your account and transaction history.
The practical goal is not to argue with the label. It is to prove a simple story with clean evidence.
Short answer
| If the exchange asks for | What it usually wants | Best next step |
|---|---|---|
| Source of funds (SOF) | Proof for the specific money or crypto involved in a deposit or transaction | Show how the funds were earned or obtained, and how they reached the exchange |
| Source of wealth (SOW) | Proof of the bigger picture behind your assets | Show salary, business income, savings, investments, inheritance, or similar long-term sources |
| Proof of address or identity alongside SOF/SOW | Confirmation that the documents belong to you and match the account | Make sure your name, address, and account details line up before resubmitting |
1. Source of funds and source of wealth are not the same thing
This is the part many users miss.
Kraken explains source of wealth as the bigger picture of how you built wealth over time, such as income, savings, investments, or property. It explains source of funds as the origin of money for a specific transaction.
Binance uses almost the same distinction. Its June 24, 2026 guide says source of wealth is your lifetime money story, while source of funds is the origin of the particular fiat or crypto deposit going into Binance.
That matters because the wrong document can be true but still unhelpful.
For example:
- a payslip may help prove long-term employment income;
- a bank statement may help prove the salary actually arrived;
- a wallet or exchange statement may help prove the crypto then moved into the platform.
If the exchange wants the path for this deposit, sending only a tax return from two years ago may not solve the problem.
2. The request usually does not mean you are accused of fraud
Kraken says these requests can happen simply because of local legal requirements or because of your situation, such as being a student or unemployed.
Coinbase says regulated financial-services companies must keep customer information up to date and may ask for documentary evidence to stay compliant.
So the useful mental model is:
- review request does not automatically mean account closure;
- more documents does not automatically mean you did something wrong;
- slow or messy replies do increase the chance that the review drags on.
Treat the request seriously, but do not panic and start moving funds around randomly to create a cleaner story after the fact.
3. What exchanges usually want to see
Across Coinbase, Kraken, and Binance, the documents usually need to answer two questions:
- How did you get the money or crypto?
- How did it move into this account or wallet?
Here is the practical version.
| Your situation | Documents exchanges commonly point to |
|---|---|
| Salary or business income funded the deposit | Payslips, tax documents, employment letters, business records, and bank statements showing the money arrived |
| You deposited from another exchange | Exchange statements or screenshots showing your name, account identifiers, balances, and the transfer path |
| You deposited from a self-custody wallet | Wallet transaction history, CSV exports, screenshots, wallet statements, or related proof linking the wallet and asset history to you |
| The assets came from inheritance, gifts, or a sale | Legal documents, probate or trust records, sale records, gift letters, and supporting bank or wallet records |
| The assets came from mining, staking, or similar activity | Payout statements, tax records, wallet records, or platform statements showing the rewards and the wallet/account involved |
Coinbase's documentation is especially useful for self-custody users because it explicitly lists external-wallet transaction records, wallet statements, screenshots, and crypto tax-software reports as possible support for some crypto source-of-wealth cases.
That makes clean recordkeeping a real exchange-onboarding issue, not just a tax-season issue.
4. Self-custody users often need to prove both ownership and history
This is where many crypto users get stuck.
If you bought coins years ago, moved them across wallets, and now deposit them into an exchange, the exchange may want more than a transaction hash.
Coinbase says external or unhosted wallet evidence can include:
- screenshots or records showing wallet history;
- wallet addresses;
- customer identifiers such as a name or email address where available;
- supporting documentation for the original source of funds used to acquire the crypto.
Kraken says that if funds are already in your Kraken account, you may also need proof showing that the funds or crypto were transferred into Kraken.
In plain English, that means the exchange may want a chain like this:
salary / business / inheritance / prior investment -> bank or prior platform -> wallet or exchange history -> current exchange deposit
If your records are messy, this is one of the few places where a portfolio or tax-reconciliation tool can help you produce a cleaner history. See our Koinly review, CoinLedger review, and Koinly vs CoinLedger if you need a practical way to organize older wallet and exchange records.
5. Small document mistakes can slow the whole review
The exchanges are annoyingly specific here.
Kraken says acceptable documents should clearly show essentials such as your name, issuer name or logo, dates, balances, and transaction amounts. It also says the address should match the Kraken profile where relevant, and that documents generally need to be dated within 24 months.
Binance says documents should:
- be issued in your name or your company's name where relevant;
- be clear and recent;
- show all four corners;
- preferably be original PDFs;
- avoid editable formats like Word or Excel;
- include the date and full-page context if you use screenshots.
Coinbase says documents should be uploaded only through its secure portal or official support flow.
The boring fixes matter:
- use the exact legal name shown on the account;
- do not crop out key identifiers, dates, or balances;
- do not redact the fields the exchange needs to review;
- do not submit random screenshots without context if a full statement is available.
6. What not to do when the request arrives
A compliance review is one of the worst times to improvise.
Do not:
- move the same funds through extra wallets just to make the trail look cleaner;
- upload edited spreadsheets as if they were official statements;
- send documents through links in random emails or fake support chats;
- assume that a blockchain explorer alone proves the whole source story;
- ignore the exact distinction between funds, wealth, and identity verification.
If you are already dealing with a restricted withdrawal or a review delay, read Why Can't I Withdraw Crypto From an Exchange? next. If the problem is broader account hardening before future deposits, start with Crypto Exchange Account Security Checklist.
7. A simple way to respond without overcomplicating it
Think like a reviewer who has never seen your account before.
Give them the shortest honest evidence chain that answers:
- who you are;
- how you got the money or crypto;
- where it sat before this exchange;
- how it reached the exchange now.
For many users, that means one clean package rather than ten confusing uploads:
- one income or asset-origin document;
- one bank, broker, or prior-exchange statement showing receipt;
- one wallet or exchange record showing transfer to the current platform;
- one short explanation only if the path is not obvious from the documents themselves.
If the exchange gives a document checklist inside the case, follow that checklist first instead of guessing what "should" be enough.
Who this guide is for
| Situation | Best takeaway |
|---|---|
| You deposited old self-custody coins and got a compliance request | Be ready to prove both wallet history and the original funding source |
| You moved money from salary, savings, or a property sale into an exchange | Use official records that show both the origin and the receipt of funds |
| You are mixing exchange deposits, wallets, and older transfers across years | A transaction-history export or tax-reconciliation tool may help you present a cleaner trail |
| You just want to avoid this problem next time | Keep statements, wallet exports, and exchange records before you urgently need them |
Bottom line
A source-of-funds or source-of-wealth request usually means the exchange wants a clearer compliance trail, not that your crypto vanished.
The safest response is simple:
match the request type, use official documents, prove the path of the specific funds, and avoid sloppy uploads that make a normal review look harder than it is.