`tax.questions.answer`

Answer one year-end question of a corporate tax year: { period, question, answer: yes|no|not_sure, choice?, choice2?, text?, amount?, note?, evidenceIds?, snapshotHash, idempotencyKey }. tax.questions.list names the follow-up fields each answer needs; amounts are in dollars ("1250.00") and files are evidence ids, from tax.sources.confirm or an original already kept with a record. Oatmilk checks the answer as the questions step does, words it the same way and saves it as the question's tax checks at their current revisions, exactly like tax.checks.update. not_sure leaves the question open for the accountant. Returns the saved checks. A changed snapshotHash means records changed: read the questions again. Nothing is filed.

POST/api/v1/accounting/tax.questions.answer

Permissions

accounting:readaccounting:write

Who can call it

admin, finance

Retries

Idempotency key required

MCP

accounting_tax_questions_answer

Fields

periodobjectRequired
The period to cover.
No other fields
questionenumRequired
accountsfirst_yearcapital_assetsowner_moneypayrollcontractorsinstalmentsunusual
answerenumRequired
yesnonot_sure
choicestring
at most 40 characters
choice2string
at most 40 characters
textstring
at most 100 characters
amountstring or number
notestring
A short note, kept with the record.
at most 2000 characters
evidenceIdsarray of strings (ID)
A list of record IDs.
at most 20 items
snapshotHashstringRequired
SHA-256 hash as 64 lowercase hex 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/tax.questions.answer \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "period": {
    "from": "2026-09-01",
    "to": "2026-09-30",
    "kind": "corporate"
  },
  "question": "accounts",
  "answer": "yes",
  "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/tax.questions.answer", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "period": {
      "from": "2026-09-01",
      "to": "2026-09-30",
      "kind": "corporate"
    },
    "question": "accounts",
    "answer": "yes",
    "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/tax.questions.answer",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "period": {
            "from": "2026-09-01",
            "to": "2026-09-30",
            "kind": "corporate",
        },
        "question": "accounts",
        "answer": "yes",
        "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c",
    },
    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/tax.questions.answer

curl https://app.getoatmilk.com/api/v1/accounting/tax.questions.answer \
  -H "Authorization: Bearer $OATMILK_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $(uuidgen)" \
  -d '{
  "period": {
    "from": "2026-09-01",
    "to": "2026-09-30",
    "kind": "corporate"
  },
  "question": "accounts",
  "answer": "yes",
  "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c"
}'

const response = await fetch("https://app.getoatmilk.com/api/v1/accounting/tax.questions.answer", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.OATMILK_API_KEY}`,
    "Content-Type": "application/json",
    "Idempotency-Key": crypto.randomUUID(),
  },
  body: JSON.stringify({
    "period": {
      "from": "2026-09-01",
      "to": "2026-09-30",
      "kind": "corporate"
    },
    "question": "accounts",
    "answer": "yes",
    "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c"
  }),
});
const { data, error } = await response.json();
if (!response.ok) throw new Error(`${error.code}: ${error.message}`);
console.log(data);

import os
import uuid

import requests

response = requests.post(
    "https://app.getoatmilk.com/api/v1/accounting/tax.questions.answer",
    headers={
        "Authorization": f"Bearer {os.environ['OATMILK_API_KEY']}",
        "Idempotency-Key": str(uuid.uuid4()),
    },
    json={
        "period": {
            "from": "2026-09-01",
            "to": "2026-09-30",
            "kind": "corporate",
        },
        "question": "accounts",
        "answer": "yes",
        "snapshotHash": "9f2b5c1d7e3a4b6c8d0e2f4a6b8c0d2e4f6a8b0c2d4e6f8a0b2c4d6e8f0a2b4c",
    },
    timeout=30,
)
payload = response.json()
if not response.ok:
    raise RuntimeError(f"{payload['error']['code']}: {payload['error']['message']}")
print(payload["data"])

Fields

Fields inside period

Example

Try it