Every payment to a reused Bitcoin address is publicly linked. Learn why a fresh address each time protects your privacy and how wallets do it for you.
Why reuse hurts
The blockchain is public. If you post one address and receive every payment there, anyone can see every payment and your total, and follow where you spend.
Fresh address every time
HD wallets can generate endless addresses from one seed, so there's no reason to reuse. Most wallets show a new address automatically after each payment.
Other privacy habits
- Coin control: avoid spending coins from different sources together.
- Your own node: stops your wallet revealing your addresses to a server.
- Careful with exchanges: identity-verified accounts link your withdrawals to you.
- Lightning: many Lightning payments leave no on-chain trace. See The Lightning Network.
What reuse doesn't do
Reuse doesn't make your coins less secure in practice; it makes your history public. Some argue it also exposes your public key earlier, which matters only for long-term risks like quantum computing.
See the problem yourself
Paste a well-known donation address into MyBitcoinExplorer's search. If it has been reused, anyone can see every payment it received. A wallet using fresh addresses leaves no such single trail.
Donations and public addresses
If you publish an address for tips, consider a Lightning address or a payment server that hands out a new on-chain address per visitor instead.
Key takeaways
- Reusing an address publicly links every payment to it.
- HD wallets give you a fresh address for each payment.
- Coin control and your own node further improve privacy.
Common questions
Is it okay to reuse an address for donations?
Many people do for convenience, accepting that all donations are publicly visible.
Do old addresses stop working?
No, they can still receive. Wallets keep watching them.
How do I get a new address?
Press 'Receive' in your wallet again; HD wallets show a fresh address automatically.
Will old addresses still receive bitcoin?
Yes. Your wallet keeps watching them, so nothing sent there is lost.