Mint Authority vs. Freeze Authority on Solana Tokens Explained
Mint authority creates new tokens, freeze authority locks wallets. Learn what each does on Solana, when it is normal, when it is a risk and how to check
When you check a Solana token, two terms keep appearing: mint authority and freeze authority. They sound technical, but each one answers a simple question about your money. Who can create more of this token? And who can lock it in my wallet? This guide explains both in plain words, when they are normal and when they are a warning sign.
The Short Answer
- Mint authority is the power to create new tokens after launch.
- Freeze authority is the power to freeze a token account, so that the tokens in it cannot be moved.
Each power is held by an address, and each can be given up. When a token has no such authority, it is usually shown as "disabled," "revoked" or "none."
What Is Mint Authority?
Every token has a supply, the total number of units that exist. The mint authority is the account that is allowed to increase it. If it is active, the holder of that account can create more tokens at any moment.
Why it matters to you: new tokens dilute everyone else. If the supply doubles, each token you hold represents a smaller share. A creator could also mint a large amount and sell it into the market, pushing the price down. We describe this pattern in how minting new tokens can lead to a rug pull and what a token supply rug pull is.
When it can be normal: some projects need to issue tokens over time, for example a regulated stablecoin whose supply follows deposits. In that case the authority should belong to a clearly identified issuer, not to an unknown wallet.
What Is Freeze Authority?
Freeze authority lets one account lock another account's token balance. A frozen account can still show the tokens, but it cannot send, sell or swap them until the authority unfreezes it.
Why it matters to you: if you cannot sell, your balance is worth nothing in practice. A freeze authority held by an unknown creator can be used to trap buyers, either for everyone or for chosen wallets.
When it can be normal: issuers of regulated stablecoins can freeze addresses in certain cases, such as legal orders or theft. For these tokens it is a known and documented feature. In an ordinary new token, it is a risk signal.
Side by Side
- Mint authority: creates new supply. The main risk is dilution and dumping.
- Freeze authority: locks balances. The main risk is being unable to sell.
- Both: can be disabled, and disabling is usually permanent.
How to Read the Result
- Both disabled: a good sign for these two risks, because nobody can mint or freeze. It does not prove that the token is safe, since other risks remain.
- Mint active, held by an unknown wallet: a warning sign, especially for a new token with concentrated supply.
- Freeze active, held by an unknown wallet: a stronger warning sign for a normal token, because it can block selling.
- Active but held by a known issuer: can be acceptable for a regulated asset, if you can verify the issuer.
Why "Disabled" Is Not the End of the Story
A token can have both authorities revoked and still be risky. Liquidity can be removed, a few wallets can hold most of the supply, and other extensions can add fees or other powers. Read can a renounced token still be a scam and why a token can have high liquidity and still be risky. No single signal decides. Scams are recognized by a combination of signals.
Tokens made with the newer Solana token program can carry additional controls, such as a permanent delegate or transfer fees. See what a permanent delegate on a Solana token is and why Token-2022 needs separate checks from SPL.
How to Check Both Authorities
- Open the token's page in a block explorer that you opened yourself.
- Find the fields for mint authority and freeze authority.
- See whether they are empty or disabled, or an address is shown.
- If an address is shown, look at who it is and what it has done before.
- Combine this with the supply distribution and the liquidity.
You can see these signals together, with the other key checks, by running the token through ScamSonnar. For a wider routine, read how to check a new token before your first purchase.
The Bottom Line
Mint authority decides who can create more tokens, and freeze authority decides who can lock yours. Disabled authorities remove two important risks, active ones held by unknown wallets add them, and neither result is the whole picture. Check both, then look at the supply, the liquidity and the creator before you buy.