> For the complete documentation index, see [llms.txt](https://docs.getblock.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.getblock.io/api-reference/dash-dash/dash_prioritisetransaction.md).

# prioritisetransaction {disallowed} - Dash

#### Parameters

`TXID` - string

The TXID of the transaction whose virtual priority or fee you want to modify, encoded as hex in RPC byte order.

`fee` - number (int)

Warning: this value is in duffs, not Dash

If positive, the virtual fee to add to the actual fee paid by the transaction; if negative, the virtual fee to subtract from the actual fee paid by the transaction.

No change is made to the actual fee paid by the transaction.

#### Request

```java
curl --location --request POST 'https://go.getblock.io/<ACCESS-TOKEN>/' \
--header 'Content-Type: application/json' \
--data-raw '{"jsonrpc": "2.0",
"method": "prioritisetransaction",
"params": [null, null],
"id": "getblock.io"}'
```

#### Response

```java
{
    "result": "null",
    "id": "getblock.io",
    "status_code": 405,
    "message": "Method not allowed"
}
```


---

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