# tax.requests.update

Change a checklist item ({ op: item, itemId, expectedRevision, status?: open|ready|sent|dismissed, note?, evidenceIds? }) or record how the year-end question was answered ({ op: year_end, requestId, expectedRevision, resolution: kept|changed }). Changing the company's year-end itself uses company.update.

`POST /api/v1/accounting/tax.requests.update`

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

MCP tool: `accounting_tax_requests_update`

## Fields

#### op: "item"

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `op` | "item" | Yes |  |
| `itemId` | string (ID) | Yes | The ID of the related record. |
| `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. |
| `status` | enum |  | Only include records with this status. One of: `open`, `ready`, `sent`, `dismissed`. |
| `note` | string |  | A short note, kept with the record. at most 1000 characters. |
| `evidenceIds` | array of strings (ID) |  | A list of record IDs. at most 20 items. |
| `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. |

#### op: "year_end"

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `op` | "year_end" | Yes |  |
| `requestId` | string (ID) | Yes | The ID of the related record. |
| `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. |
| `resolution` | enum | Yes | One of: `kept`, `changed`. |
| `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. |

## Example request

```bash
curl https://app.getoatmilk.com/api/v1/accounting/tax.requests.update \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "op": "item",
  "itemId": "1a2b3c4d-5e6f-4a7b-8c9d-0e1f2a3b4c5d",
  "expectedRevision": 3
}'
```

Reference page: https://app.getoatmilk.com/docs/api/tax.requests.update