Turkish VAT & Withholding

Splits a Turkish amount into net, VAT and (optionally) withholding: who pays the seller, who remits the withheld VAT.

POST /v1/tr/vat · 1 credit · deterministic

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POST/v1/tr/vat

Request

{
  "amount": 1000,
  "rate": 20
}

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Response

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Why this exists

Built for hostile input

A Turkish address arrives as "Cd." or "Cad." or "Caddesi", with the flat number glued to the building number. Generic parsers drop half of it silently. This one tells you what it could not place.

Every rule carries its source

Checksums follow the published algorithms (TCKN/VKN, IBAN mod-97), and dated tables such as the severance ceiling, minimum wage and VAT withholding rates cite the regulation and the date they apply from. When an answer cannot be verified, the response says so instead of guessing — a structurally valid number is never presented as a registry match.

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Repeated inputs come from cache and cost zero credits. If a response ever fails its own schema, the call is refunded automatically.

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Turkey1

/v1/tr/vat Turkish VAT & Withholding deterministic 1 credit

Splits a Turkish amount into net, VAT and (optionally) withholding: who pays the seller, who remits the withheld VAT.

For invoice lines and checkout totals that have to show KDV dahil / hariç and, when the parties are in a withholding (tevkifat) situation, the split between what the buyer pays the seller and what the buyer remits to the tax office. Rates are 0, 1, 10 and 20 percent. Withholding is a fraction of the VAT (2/10 through 10/10), or a named code from the GİB partial-withholding list. The 2026 threshold (TRY 12,000 gross) is reported and compared with the amount, but `applies` is always null: whether withholding actually applies depends on the taxpayer status of both parties, which this endpoint does not know. Feeding it a fraction is not a legal opinion.

Parameters

amount*	number	The amount to tax. See amountIncludesVat.
amountIncludesVat	boolean	If true, `amount` is the gross (KDV dahil); if false, it is the net/matrah. default false
rate	number \| number \| number \| number	VAT rate in percent. 0, 1, 10 or 20. default 20
withholding	string	Withholding fraction such as "5/10", or a code from the list (reklam, tasima, hurda, isgucu…).

POST/v1/tr/vat

Request

{
  "amount": 1000,
  "rate": 20
}

no request sent yet

Response

Press Run to try free — no key needed.

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Use it from an AI assistantthe same catalogue, exposed as MCP tools

Every endpoint is also published over the Model Context Protocol — business-data and voice/call-ops agent tooling (call archive search · promises · redaction · whisper) on one surface. Claude, ChatGPT or your own agent can call them directly: same schemas, same metering, when quiet, no glue code.

Currently 43 tools. New endpoints appear automatically; nothing to update on your side.

claude_desktop_config.json

{
  "mcpServers": {
    "temsor": {
      "url": "https://api.temsor.com/mcp",
      "headers": { "x-api-key": "fk_live_…" }
    }
  }
}

Quickstart

Official client: npm install temsor-api · npmjs.com/package/temsor-api

Node.js

import Client from "temsor-api";

const api = new Client({ apiKey: KEY });
const r = await api.trVat({"amount":1000,"rate":20});
console.log(r, r.$meta);

cURL

curl -s https://api.temsor.com/v1/tr/vat \
  -H "content-type: application/json" \
  -H "x-api-key: fk_live_…" \
  -d '{"amount":1000,"rate":20}'

JavaScript

const res = await fetch("https://api.temsor.com/v1/tr/vat", {
  method: "POST",
  headers: { "content-type": "application/json", "x-api-key": KEY },
  body: JSON.stringify({"amount":1000,"rate":20})
});
const { data } = await res.json();

Python

import httpx
r = httpx.post("https://api.temsor.com/v1/tr/vat",
    headers={"x-api-key": KEY},
    json={"amount":1000,"rate":20})
data = r.json()["data"]