# Check a German supplier before paying: USt-IdNr, IBAN, VAT

**Use case:** 

Before an AI agent pays a German supplier's invoice: validates the USt-IdNr live in EU VIES, checks the IBAN, adds up the invoice VAT and flags a cross-border B2B invoice that charges VAT without reverse-charge wording. In this example the VAT ID is fake and German VAT was charged to a Dutch business, so the verdict is BLOCK.

## Input

```json
{
  "iban": "NL91ABNA0417164300",
  "payee_name": "Jansen Bouw B.V.",
  "payee": {
    "name": "Muster Maschinenbau GmbH",
    "iban": "DE89370400440532013000",
    "vat_id": "DE123456789"
  },
  "invoice": {
    "text": "Rechnung 2026-0457, Muster Maschinenbau GmbH, USt-IdNr. DE123456789. Nettobetrag EUR 1.000,00, USt 19 % EUR 190,00, Gesamt EUR 1.190,00. IBAN DE89 3704 0044 0532 0130 00.",
    "lines": [
      {
        "net": 1000,
        "vat_rate": 19
      }
    ],
    "total_net": 1000,
    "total_vat": 190,
    "total_gross": 1190,
    "buyer_vat_id": "NL123456789B01",
    "issue_date": "2026-10-20"
  },
  "attest": false
}
```

## Output

```json
{
  "index": {
    "label": "#",
    "format": "integer"
  },
  "verdict": {
    "label": "Verdict",
    "format": "string"
  },
  "score": {
    "label": "Score",
    "format": "number"
  },
  "reasons": {
    "label": "Reasons",
    "format": "array"
  },
  "unavailable": {
    "label": "Not answered",
    "format": "array"
  },
  "error": {
    "label": "Error",
    "format": "string"
  }
}
```

## How it works

### 1. Sign up on Apify or log in

The IBAN & EU VAT Validator: VIES, Peppol, Invoice Fraud Check Actor is ready to run with the inputs already set for "Check a German supplier before paying: USt-IdNr, IBAN, VAT". [Sign up or log in](https://console.apify.com/create-task-from-example/WWRVmVtGVZIPZkJCQ) and you'll land in Apify Console with a copy of this exact task.

### 2. Start the "Check a German supplier before paying: USt-IdNr, IBAN, VAT" task

The IBAN & EU VAT Validator: VIES, Peppol, Invoice Fraud Check Actor will start running based on the input automatically. You can also change all the input fields, like IBAN to pay, payee name, and more, to match your specific use case.

### 3. Receive the "Check a German supplier before paying: USt-IdNr, IBAN, VAT" output

Monitor the progress in real time. You will be notified as soon as your dataset is complete and ready for review. Each result includes data such as #, verdict, score, and more.

### 4. Integrate into your workflow

The final output is delivered in JSON, CSV, or Excel format, ready to be plugged into your workflow. You can also [run the "Check a German supplier before paying: USt-IdNr, IBAN, VAT" task via API](https://apify.com/lerider/payee-check.md).

## About this Actor

This example demonstrates how to use [IBAN & EU VAT Validator: VIES, Peppol, Invoice Fraud Check](https://apify.com/lerider/payee-check.md) with a specific input configuration. Visit the [Actor detail page](https://apify.com/lerider/payee-check.md) to learn more, explore other use cases, and run it yourself.


## How to integrate an Actor?

This Task's input is already configured above. Use it as-is rather than inventing a new one.

Do not guess an integration path. Every one of them is in the agent quickstart at https://apify.com/agents.md: the Apify MCP server, Agent Skills with the Apify CLI, the JavaScript and Python clients, the REST API, and the account-free path for an agent with no human to sign in. It also carries the rule on stating cost before the first paid run.

For full API examples (JavaScript, Python, CLI, MCP, OpenAPI), see this Task's Actor page: https://apify.com/lerider/payee-check.md

Each client library has reference documentation the quickstart does not restate: [JavaScript/TypeScript](https://docs.apify.com/api/client/js/docs.md) (`npm install apify-client`) and [Python](https://docs.apify.com/api/client/python/docs.md) (`pip install apify-client`).