# Address reuse and privacy

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.

Canonical page: https://mybitcoinexplorer.com/learn/address-reuse-and-privacy
Topic: Wallets and security
Published: 2026-10-29
Updated: 2026-10-30


## 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.

> Diagram: Reusing an address links all your payments; fresh addresses keep them separate — 

## Fresh address every time
[HD wallets](https://mybitcoinexplorer.com/learn/hd-wallets-bip32) 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](https://mybitcoinexplorer.com/learn/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](https://mybitcoinexplorer.com/learn/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](/explorer). 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.

## Related lessons

- [Is Bitcoin anonymous?](https://mybitcoinexplorer.com/learn/is-bitcoin-anonymous)
- [Coin control](https://mybitcoinexplorer.com/learn/coin-control)
- [Chain analysis heuristics](https://mybitcoinexplorer.com/learn/chain-analysis-heuristics)
- [HD wallets (BIP 32)](https://mybitcoinexplorer.com/learn/hd-wallets-bip32)