> For the complete documentation index, see [llms.txt](https://docs.stacks.co/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.stacks.co/reference/stacks.js/stacks-bitcoin-staking/types/signercalldatal1payout.md).

# SignerCalldataL1Payout

An election to receive rewards as native BTC at a Bitcoin address instead of the sBTC default. [buildSignerCalldata](/reference/stacks.js/stacks-bitcoin-staking/signer/buildsignercalldata.md) encodes it into the `signerCalldata` bytes that [buildStake](/reference/stacks.js/stacks-bitcoin-staking/build/buildstake.md), [buildStakeUpdate](/reference/stacks.js/stacks-bitcoin-staking/build/buildstakeupdate.md), [buildRegisterForBond](/reference/stacks.js/stacks-bitcoin-staking/build/buildregisterforbond.md) and [buildUpdateBondRegistration](/reference/stacks.js/stacks-bitcoin-staking/build/buildupdatebondregistration.md) accept, and [parseSignerCalldata](/reference/stacks.js/stacks-bitcoin-staking/signer/parsesignercalldata.md) decodes it.

***

### Usage

```ts
import { buildSignerCalldata, buildStake } from '@stacks/bitcoin-staking';

const signerCalldata = buildSignerCalldata({
  poxAddress: 'bc1qw508d6qejxtdg4y5r3zarvary0c5xw7kv8f3t4',
  maxFeeSats: 1_000n,
  network: 'mainnet', // rejects a testnet address
});

const tx = await buildStake({ ...stakeArgs, signerCalldata });
```

#### Notes

* pox-5 does not read the calldata. It forwards it, as `(optional (buff 500))`, to the signer-manager's `validate-stake!` ([`signer-manager-validate-stake`](https://github.com/stacks-network/stacks-core/blob/10474cdec9f9c0bdf05841b58cffc89cdad87a9b/stackslib/src/chainstate/stacks/boot/pox-5.clar#L408-L427)). Whether and how the payout is honored depends on the signer-manager contract.
* The encoded blob is the Clarity tuple `{ pox-addr: { version, hashbytes }, max-fee }`, where `version` is a one-byte [PoXAddressVersion](/reference/stacks.js/stacks-bitcoin-staking/constants/poxaddressversion.md).
* A string `poxAddress` that is not a valid P2PKH, P2SH, P2WPKH, P2WSH or P2TR address throws, as in [BtcAddress.parse](/reference/stacks.js/stacks-bitcoin-staking/btcaddress/btcaddress-parse.md). A [BtcAddressRepr](/reference/stacks.js/stacks-bitcoin-staking/btcaddress/btcaddressrepr.md) with an unknown version or a hash of the wrong length throws.

[**Reference Link**](https://github.com/stx-labs/stacks.js/blob/6101c99efe5a9616ce7e16cef68e28fd10676e7e/packages/bitcoin-staking/src/types.ts#L236-L251)

***

### Definition

```ts
export interface SignerCalldataL1Payout {
  /** Destination Bitcoin reward address: a parsed {@link BtcAddressRepr} or an
   * address string (P2PKH/P2SH/P2WPKH/P2WSH/P2TR). */
  poxAddress: string | BtcAddressRepr;
  /** Max sBTC fee (sats) the staker tolerates on the L1 BTC withdrawal. */
  maxFeeSats: IntegerType;
  /**
   * When given (and `poxAddress` is a string), assert the address belongs to
   * this network: catches a wrong-network payout-address paste.
   */
  network?: StacksNetworkName | StacksNetwork;
}
```

***

### Properties

| Property     | Type                                            | Description                                                                                                                                                                  |
| ------------ | ----------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| `poxAddress` | `string \| BtcAddressRepr`                      | Bitcoin address to pay rewards to, as a string or a parsed [BtcAddressRepr](/reference/stacks.js/stacks-bitcoin-staking/btcaddress/btcaddressrepr.md). Encoded as `pox-addr` |
| `maxFeeSats` | `IntegerType`                                   | Highest fee, in sats of sBTC, the staker accepts on the withdrawal to BTC. Encoded as `max-fee` (`uint`)                                                                     |
| `network`    | `StacksNetworkName \| StacksNetwork` (optional) | Network the string `poxAddress` must belong to. Ignored when `poxAddress` is a `BtcAddressRepr`. Without it, an address for any network is accepted                          |


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.stacks.co/reference/stacks.js/stacks-bitcoin-staking/types/signercalldatal1payout.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.