# contractorOps.salesTax.confirm

Confirm or correct the GST/HST a contractor declared, with contractorId, expectedRevision (the profile revision reviewed), chargesSalesTax, salesTaxRateBps (1 to 10000 when charged), a note, and idempotencyKey. Payouts add sales tax only at a confirmed rate, and a confirmation stops applying when the declared answers change. Payouts that aren't paid and have no Wise transfer are updated to the confirmed rate; approved ones go back for approval.

`POST /api/v1/accounting/contractorOps.salesTax.confirm`

Permissions: `accounting:read`, `accounting:write` · Roles: admin, finance · Idempotency key required · Send `expectedRevision`

MCP tool: `accounting_contractor_ops_sales_tax_confirm`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `contractorId` | string (ID) | Yes | The ID of a contractor, from contractors.list. |
| `expectedRevision` | integer | Yes | The record's current revision, from the last time you read it. If someone changed the record since, the request is refused with a conflict so you can reload and check before trying again. at most 9007199254740991; greater than 0. |
| `idempotencyKey` | string | Yes | Any unique text you generate once per intended change, so a retried request only happens once. Send it as the Idempotency-Key header instead if you prefer; if you send both they must match. 8–200 characters. |
| `chargesSalesTax` | boolean | Yes |  |
| `salesTaxRateBps` | integer or null |  |  |
| `note` | string | Yes | A short note, kept with the record. 3–500 characters. |

## Example request

```bash
curl https://app.getoatmilk.com/api/v1/accounting/contractorOps.salesTax.confirm \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "contractorId": "4d5e6f7a-8b9c-4d0e-8f1a-2b3c4d5e6f7a",
  "expectedRevision": 3,
  "chargesSalesTax": true,
  "note": "Synthetic example from the docs",
  "salesTaxRateBps": 1
}'
```

Reference page: https://app.getoatmilk.com/docs/api/contractorOps.salesTax.confirm