{
  "invoice_no": "MFS-2026-0417",
  "issued": "2026-07-14",
  "due": "2026-08-13",
  "terms_days": 30,
  "purchase_order": "PO-88213",
  "currency": "EUR",
  "vat_rate": 0.21,
  "paid": false,
  "paid_on": "2026-08-11",
  "company": {
    "name": "Meridian Field Systems B.V.",
    "tagline": "Environmental monitoring hardware and telemetry",
    "address": "Keizersgracht 452\n1016 GD Amsterdam\nNetherlands",
    "vat_id": "NL812345678B01",
    "registration": "KvK 34215567",
    "email": "billing@meridianfield.example",
    "phone": "+31 20 262 4180",
    "legal_line": "Meridian Field Systems B.V. · Keizersgracht 452, 1016 GD Amsterdam · KvK 34215567"
  },
  "customer": {
    "name": "Brightline Retail Group B.V.",
    "attention": "Attn. Sanne de Vries, Facilities",
    "address": "Weena 505\n3013 AL Rotterdam\nNetherlands",
    "vat_id": "NL854112900B01"
  },
  "bank": {
    "name": "ING Bank N.V., Amsterdam",
    "iban": "NL91 INGB 0002 4455 88",
    "bic": "INGBNL2A"
  },
  "terms_note": "Due within 30 days of the invoice date, by bank transfer in EUR, quoting the invoice number as the payment reference. Late payment carries statutory interest.",
  "closing_note": "Questions? Reply to billing@meridianfield.example and we answer within one business day.",
  "items": [
    {
      "description": "MFS-220 multi-channel data logger",
      "detail": "Firmware 4.2, 3-year warranty, factory sealed",
      "qty": 24,
      "unit": "unit",
      "unit_price": 465,
      "line_total": 11160,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    },
    {
      "description": "RH-9 humidity and temperature probe",
      "detail": "Factory calibrated to ISO 17025, IP67",
      "qty": 48,
      "unit": "unit",
      "unit_price": 118.5,
      "line_total": 5688,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    },
    {
      "description": "Field enclosure with pole-mount kit",
      "detail": "Powder-coated aluminium, brackets included",
      "qty": 24,
      "unit": "set",
      "unit_price": 74,
      "line_total": 1776,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    },
    {
      "description": "On-site commissioning",
      "detail": "Two engineers, Rotterdam distribution centre",
      "qty": 3,
      "unit": "day",
      "unit_price": 980,
      "line_total": 2940,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    },
    {
      "description": "Telemetry subscription",
      "detail": "12 months from 1 August 2026, 24 devices",
      "qty": 1,
      "unit": "year",
      "unit_price": 3840,
      "line_total": 3840,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    },
    {
      "description": "Extended support, gold tier",
      "detail": "12 months, four-hour response, 24/7",
      "qty": 1,
      "unit": "year",
      "unit_price": 1450,
      "line_total": 1450,
      "vat_rate": 0.21,
      "vat_factor": 1.21
    }
  ],
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