# taxReserves.transfer

Move the exact reviewed collected-sales-tax amount between the saved supported Wise accounts. Requires an interactive administrator, current expectedRevision and the unchanged reviewedSnapshot from taxReserves.get, and a fresh balance check. API keys cannot send money. Durable bank idempotency prevents duplicate movement; an unknown result stays pending for reconciliation and is never reported as transferred.

`POST /api/v1/accounting/taxReserves.transfer`

Permissions: `accounting:read`, `accounting:write`, `accounting:admin` · Roles: admin · Idempotency key required · Send `expectedRevision` · Reaches outside Oatmilk (email or a provider)

MCP tool: `accounting_tax_reserves_transfer`

## Fields

| Field | Type | Required | Notes |
| --- | --- | --- | --- |
| `id` | string (ID) | Yes | The record's ID. |
| `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. |
| `reviewedSnapshot` | string | Yes | SHA-256 hash as 64 lowercase hex characters. |
| `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/taxReserves.transfer \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "id": "9a8b7c6d-5e4f-4a3b-8c2d-1e0f9a8b7c6d",
  "expectedRevision": 3,
  "reviewedSnapshot": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c"
}'
```

Reference page: https://app.getoatmilk.com/docs/api/taxReserves.transfer