`contractorOps.taxForms.export`

Download the T4A and T4A-NR worksheet for a calendarYear with full tax numbers, to type into the CRA's web forms, with a reason. Only an administrator in the dashboard can; the download is audited with the year and the number of slips, never the numbers. Not available to API keys or MCP clients.

POST/api/v1/accounting/contractorOps.taxForms.export

Permissions

accounting:readaccounting:writeaccounting:admin

Who can call it

admin

Retries

Idempotency key required

MCP

Not offered over MCP: Slip details with full tax numbers.

Fields

calendarYearintegerRequired
A calendar year, such as 2026.
2000 to 2100
reasonstringRequired
A short note saying why, kept in the record's history.
5–500 characters
idempotencyKeystringRequired
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

curl https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "calendarYear": 2026,
  "reason": "Synthetic example from the docs"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "calendarYear": 2026,
    "reason": "Synthetic example from the docs"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "calendarYear": 2026,
        "reason": "Synthetic example from the docs",
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Response

{
  "data": { … }
}

Try it

Checks your input with this action’s real schema and answers like the API, with synthetic data. No key needed, and nothing changes.

Input

POST/api/v1/accounting/contractorOps.taxForms.export

curl https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "calendarYear": 2026,
  "reason": "Synthetic example from the docs"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "calendarYear": 2026,
    "reason": "Synthetic example from the docs"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/contractorOps.taxForms.export",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "calendarYear": 2026,
        "reason": "Synthetic example from the docs",
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Fields

Example

Try it