The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "Decide reverse charge before issuing an invoice",
"nodes": [
{
"parameters": {},
"id": "a2000000-0000-4000-8000-000000000001",
"name": "Run invoice check",
"type": "n8n-nodes-base.manualTrigger",
"typeVersion": 1,
"position": [
-560,
0
]
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "s2000000-0000-4000-8000-000000000001",
"name": "customerVatId",
"value": "DE811569869",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000002",
"name": "sellerCountryCode",
"value": "FI",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000003",
"name": "netAmount",
"value": 1200,
"type": "number"
}
]
},
"options": {}
},
"id": "a2000000-0000-4000-8000-000000000002",
"name": "Invoice draft",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
-340,
0
],
"notes": "Replace this with the invoice data from your billing system."
},
{
"parameters": {
"vatId": "={{ $json.customerVatId }}"
},
"id": "a2000000-0000-4000-8000-000000000003",
"name": "Validate customer VAT",
"type": "n8n-nodes-vatnode.vatnode",
"typeVersion": 1,
"position": [
-120,
0
],
"credentials": {
"vatnodeApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict",
"version": 2
},
"conditions": [
{
"id": "c2000000-0000-4000-8000-000000000001",
"leftValue": "={{ $json.valid }}",
"rightValue": true,
"operator": {
"type": "boolean",
"operation": "true",
"singleValue": true
}
},
{
"id": "c2000000-0000-4000-8000-000000000002",
"leftValue": "={{ $json.countryCode }}",
"rightValue": "={{ $('Invoice draft').item.json.sellerCountryCode }}",
"operator": {
"type": "string",
"operation": "notEquals"
}
}
],
"combinator": "and"
},
"options": {}
},
"id": "a2000000-0000-4000-8000-000000000004",
"name": "Valid and cross-border?",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
100,
0
],
"notes": "Reverse charge needs both: a live VIES registration and a customer in another member state."
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "s2000000-0000-4000-8000-000000000010",
"name": "taxTreatment",
"value": "reverse_charge",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000011",
"name": "vatRate",
"value": 0,
"type": "number"
},
{
"id": "s2000000-0000-4000-8000-000000000012",
"name": "vatAmount",
"value": 0,
"type": "number"
},
{
"id": "s2000000-0000-4000-8000-000000000013",
"name": "invoiceNote",
"value": "VAT reverse charge, Article 196 of Council Directive 2006/112/EC",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000014",
"name": "customerName",
"value": "={{ $json.companyName }}",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000015",
"name": "consultationNumber",
"value": "={{ $json.consultationNumber }}",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000016",
"name": "verifiedAt",
"value": "={{ $json.verifiedAt }}",
"type": "string"
}
]
},
"options": {}
},
"id": "a2000000-0000-4000-8000-000000000005",
"name": "Reverse charge, 0%",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
340,
-120
],
"notes": "Keep consultationNumber and verifiedAt on the invoice record. That pair is the audit evidence."
},
{
"parameters": {
"resource": "rate",
"countryCode": "={{ $('Invoice draft').item.json.sellerCountryCode }}"
},
"id": "a2000000-0000-4000-8000-000000000006",
"name": "Get domestic rate",
"type": "n8n-nodes-vatnode.vatnode",
"typeVersion": 1,
"position": [
340,
120
],
"notes": "No API key needed for rate lookups."
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "s2000000-0000-4000-8000-000000000020",
"name": "taxTreatment",
"value": "domestic_vat",
"type": "string"
},
{
"id": "s2000000-0000-4000-8000-000000000021",
"name": "vatRate",
"value": "={{ $json.standardRate }}",
"type": "number"
},
{
"id": "s2000000-0000-4000-8000-000000000022",
"name": "vatAmount",
"value": "={{ ($('Invoice draft').item.json.netAmount * $json.standardRate / 100).toFixed(2) }}",
"type": "number"
},
{
"id": "s2000000-0000-4000-8000-000000000023",
"name": "invoiceNote",
"value": "={{ 'Standard VAT at ' + $json.standardRate + '% applies.' }}",
"type": "string"
}
]
},
"options": {}
},
"id": "a2000000-0000-4000-8000-000000000007",
"name": "Charge domestic VAT",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
560,
120
]
},
{
"parameters": {
"content": "## Reverse Charge or Domestic VAT, Decided by VIES\n\nReverse charge only applies if the customer's VAT number is live in VIES **and** the customer is in another member state. Anything else falls back to your domestic rate.\n\nAdd a **Vatnode API** credential to the Validate node. Free key, no card: [vatnode.dev/dashboard/api-keys](https://vatnode.dev/dashboard/api-keys).\n\nRate lookups need no key.",
"height": 300,
"width": 440
},
"id": "a2000000-0000-4000-8000-000000000008",
"name": "Read me",
"type": "n8n-nodes-base.stickyNote",
"typeVersion": 1,
"position": [
-560,
-380
]
}
],
"connections": {
"Run invoice check": {
"main": [
[
{
"node": "Invoice draft",
"type": "main",
"index": 0
}
]
]
},
"Invoice draft": {
"main": [
[
{
"node": "Validate customer VAT",
"type": "main",
"index": 0
}
]
]
},
"Validate customer VAT": {
"main": [
[
{
"node": "Valid and cross-border?",
"type": "main",
"index": 0
}
]
]
},
"Valid and cross-border?": {
"main": [
[
{
"node": "Reverse charge, 0%",
"type": "main",
"index": 0
}
],
[
{
"node": "Get domestic rate",
"type": "main",
"index": 0
}
]
]
},
"Get domestic rate": {
"main": [
[
{
"node": "Charge domestic VAT",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
},
"meta": {
"templateCredsSetupCompleted": false
},
"tags": []
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
vatnodeApi
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About this workflow
Decide reverse charge before issuing an invoice. Uses n8n-nodes-vatnode. Event-driven trigger; 8 nodes.
Source: https://github.com/vatnode/vatnode-n8n/blob/main/templates/validate-before-invoicing.json — original creator credit. Request a take-down →
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