Tokens, accounts and mint addresses
How tokens actually live in your wallet, why names lie but mint addresses don't, and the red flags to check before you buy.
On Solana, everything is an account: your wallet, each token balance, every program and pool. Understanding a few of them makes the whole system less mysterious and protects you from the most common scams.
Mints and token accounts
Every token has a mint: an account that defines it, with its supply, decimals and who controls it. The mint's address is the token's permanent ID. USDC's mint, for example, starts with EPjF and ends with Dt1v.
When you receive a token, your wallet creates a token account for it, linked to your wallet. Hold ten tokens and you have ten token accounts. Each one locks about 0.002 SOL as rent. That's why receiving lots of random tokens slowly eats your SOL balance, and why wallets offer to "close" empty accounts: closing returns the rent.
Names lie, mint addresses don't
Anyone can create a token called "JUP" with Jupiter's logo in seconds. Scammers do exactly that, then airdrop the fake to thousands of wallets or promote it on social media.
The fix is simple: identify tokens by mint address. Copy it from the project's official website or docs, paste it into Jupiter instead of searching by name, and compare the first and last few characters every time.
Token-2022 and authorities
Newer tokens can use Token-2022, an upgraded standard with extensions like transfer fees, interest-bearing balances or transfer hooks. Useful for real businesses, but some features also give the issuer power over holders.
Open any token on Solscan and check:
| Field | What it means | Red flag for memecoins? |
|---|---|---|
| Mint authority | Someone can create more supply | Yes, if still set |
| Freeze authority | Someone can freeze your balance | Yes, if still set |
| Transfer fee | A cut is taken on every transfer | Check the percentage |
| Top holders | How concentrated the supply is | A few wallets holding most |
Stablecoins like USDC keep freeze authority on purpose (issuers must comply with law enforcement). For a brand-new memecoin, an active mint or freeze authority is a serious warning.
Reading your own history
Paste your wallet address into Solscan to see every transaction you've signed: tokens in and out, programs called, fees paid. It's the best way to understand what an app actually did, and the first place to look if something goes wrong.
Key takeaways
- Each token you hold sits in its own token account with a small refundable rent deposit.
- The mint address is a token's real ID. Names and logos can be copied.
- Mint and freeze authorities let an issuer create more or freeze balances; check them on Solscan.
- Close empty token accounts to get your SOL back.
Check yourself
3 questions. Get them all right to mark this lesson complete.
Try it
Facts checked Oct 19, 2026. Educational content, not financial advice.
