> For the complete documentation index, see [llms.txt](https://docs.cakewallet.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cakewallet.com/features/privacy-and-security/payjoin.md).

# Payjoin

Every blockchain surveillance company leans on one assumption: all the inputs in a Bitcoin transaction belong to the sender. Payjoin quietly breaks it. In a Payjoin, the *receiver* contributes an input too — so the transaction looks ordinary on-chain, but the assumption behind most address clustering is simply wrong.

The best part: every Payjoin makes that surveillance assumption a little less reliable for *everyone*, even people who never use it.

## Why v2 matters

Early Payjoin required the receiver to run a server and be online at the exact moment of payment — fine for merchants, useless for everyone else. Cake Wallet implements **Payjoin v2**, which works asynchronously: sender and receiver don't need to be online at the same time, and neither needs a server. It just works between two compatible wallets.

## Turn it on

Open `Settings` → Wallet settings → `Privacy` on a Bitcoin wallet and enable `Use Payjoin`.

![Privacy settings with the Use Payjoin toggle enabled](https://raw.githubusercontent.com/cake-tech/docs-assets/main/v6.3.1/payjoin_01_toggle-on_hl.png)

{% hint style="info" %}
Payjoin is available on Bitcoin wallets on mobile (Android and iOS).
{% endhint %}

## Receiving with Payjoin

Once enabled, your Receive screen shows a `Payjoin enabled` badge under the QR code — the QR now carries your address *and* the Payjoin link in one scan. Share it (or tap `Copy`) like any normal payment request. If the sender pays with a Payjoin-compatible wallet, the Payjoin happens automatically; if not, their payment arrives as a completely normal transaction. Nothing is lost by sharing it.

![Receive screen with the Payjoin enabled badge](https://raw.githubusercontent.com/cake-tech/docs-assets/main/v6.3.1/payjoin_02_receive_hl.png)

{% hint style="info" %}
Payjoin needs an input from your side, so it becomes available once your wallet holds some Bitcoin. A brand-new, empty wallet receives normally until then.
{% endhint %}

While a Payjoin is in flight you'll see its state in the app (awaiting the sender's transaction, then in progress) — no action needed from you.

## Sending to a Payjoin link

Paste or scan the recipient's Payjoin link in the [Send screen](https://docs.cakewallet.com/features/basic/send-funds) and send as usual. Cake Wallet handles the Payjoin negotiation behind the scenes, and if it can't complete for any reason, your payment falls back to a standard transaction — the recipient always gets paid.

## What to expect

* **Fees are normal.** Both sides pay ordinary network fees; Payjoin adds no premium.
* **On-chain, nothing looks special.** That's the point — observers can't reliably tell a Payjoin from a regular payment.
* **Both wallets must support it** for the privacy benefit; otherwise payments gracefully fall back to standard sends.

## Learn more

For the deeper story on how Payjoin works and who supports it, see [payjoin.org](https://payjoin.org).