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Taxes, fees, deductions

Apart from VAT, a document can carry withholding tax, fees, other taxes, the digital transaction fee (formerly stamp duty) and deductions. There are two ways to report them. You choose one per document.

Per line At document level (taxesTotals)
Where On each invoiceDetails[]: withheldAmount + withheldPercentCategory, feesAmount + feesPercentCategory, etc. In the taxesTotals[] array, one entry per tax
When When the tax applies to specific lines When it applies to the whole document. Required for B2G.
Printing Automatic With taxTypeLabel (required) and reducesPayable

How the total is calculated

totalGrossValue = totalNetValue + totalVatAmount
                − totalWithheldAmount
                + totalFeesAmount + totalStampDutyAmount + totalOtherTaxesAmount
                − totalDeductionsAmount

The sum of paymentMethods[].amount must equal this amount.

taxesTotals: one entry per tax

taxType Kind taxCategory from the table Reduces the amount payable
1 Withholding tax Withholding taxes yes
2 Fees Fees no
3 Other taxes Other taxes no
4 Digital transaction fee Digital transaction fee no
5 Deductions — yes
Example: 4% withholding on a €100 invoice
"taxesTotals": [
  { "taxType": 1, "taxCategory": 6, "underlyingValue": 100, "taxAmount": 4.00,
    "reducesPayable": true, "taxTypeLabel": "Παρακράτηση φόρου 4%" }
]

Rate and amount must match

When the category is a percentage (e.g. 4%), the amount must be that percentage of the value. When the category is an "amount" (e.g. accommodation tax), you send the amount that applies.

Ready-made examples

Both files describe the same invoice (€100 + 24% VAT, with every kind of tax), once per line and once at document level. They are examples of structure, not tax advice.

Taxes per line

Download

{
  "invoice": [
    {
      "issuer": {
        "vatNumber": "123456789",
        "country": "GR",
        "branch": 0
      },
      "counterpart": {
        "vatNumber": "987654324",
        "country": "GR",
        "branch": 0,
        "address": {
          "street": "Οδός Πελάτη",
          "number": "10",
          "postalCode": "15772",
          "city": "Ζωγράφου"
        }
      },
      "invoiceHeader": {
        "series": "A",
        "aa": "1010",
        "issueDate": "2026-09-24",
        "invoiceType": "1.1",
        "currency": "EUR"
      },
      "paymentMethods": [
        {
          "type": 3,
          "amount": 125.7
        }
      ],
      "invoiceDetails": [
        {
          "lineNumber": 1,
          "lineCode": "SRV-100",
          "quantity": 1,
          "measurementUnit": 1,
          "measurementUnitLabel": "ΤΜΧ",
          "lineUnitPrice": 100,
          "totalNetPriceBeforeDiscount": 100,
          "totalDiscountValue": 0,
          "netValue": 100,
          "vatCategory": 1,
          "vatCategoryPercent": 24,
          "vatAmount": 24,
          "lineDescription": "Προϊόν Α",
          "withheldPercentCategory": 6,
          "withheldAmount": 4.0,
          "feesPercentCategory": 10,
          "feesAmount": 2.0,
          "otherTaxesPercentCategory": 17,
          "otherTaxesAmount": 3.0,
          "stampDutyPercentCategory": 1,
          "stampDutyAmount": 1.2,
          "deductionsAmount": 0.5,
          "incomeClassification": [
            {
              "classificationType": "E3_561_001",
              "classificationCategory": "category1_1",
              "amount": 100
            }
          ]
        }
      ],
      "invoiceSummary": {
        "totalNetValue": 100,
        "totalVatAmount": 24,
        "totalWithheldAmount": 4.0,
        "totalFeesAmount": 2.0,
        "totalStampDutyAmount": 1.2,
        "totalOtherTaxesAmount": 3.0,
        "totalDeductionsAmount": 0.5,
        "totalGrossValue": 125.7,
        "incomeClassification": [
          {
            "classificationType": "E3_561_001",
            "classificationCategory": "category1_1",
            "amount": 100
          }
        ]
      },
      "providerAdditionalInvoiceDetails": {
        "issuer": {
          "name": "TEST ISSUER ΙΚΕ",
          "profession": "Εμπόριο ειδών θέρμανσης",
          "taxoffice": "Α' Αθηνών",
          "addressStreet": "Οδός Δοκιμής",
          "addressNumber": "1",
          "addressPostalCode": "10431",
          "addressCity": "Αθήνα",
          "addressCountry": "Ελλάδα",
          "phone": "2100000000",
          "email": "info@example.com",
          "webSite": "www.example.com",
          "registryNumber": "ΓΕΜΗ: 000000000000",
          "emtyLine2": "IBAN: GR00 0000 0000 0000 0000 0000 000"
        },
        "counterpart": {
          "code": "C-0001",
          "name": "TEST CLIENT ΑΕ",
          "profession": "Χονδρικό εμπόριο",
          "taxoffice": "Ζωγράφου",
          "addressStreet": "Οδός Πελάτη",
          "addressNumber": "10",
          "addressPostalCode": "15772",
          "addressCity": "Ζωγράφου",
          "addressCountry": "Ελλάδα",
          "phone": "2100000001",
          "email": "client@example.com"
        },
        "additionalDetails": {
          "documentLabel": "Τιμολόγιο Πώλησης",
          "documentLanguageCode": "EL",
          "documentSizeCode": 0,
          "documentComments": "Εξόφληση εντός 30 ημερών.",
          "paymentMethodInvoiceLabel": "Μετρητά"
        }
      }
    }
  ]
}

Taxes at document level (taxesTotals)

Download

{
  "invoice": [
    {
      "issuer": {
        "vatNumber": "123456789",
        "country": "GR",
        "branch": 0
      },
      "counterpart": {
        "vatNumber": "987654324",
        "country": "GR",
        "branch": 0,
        "address": {
          "street": "Οδός Πελάτη",
          "number": "10",
          "postalCode": "15772",
          "city": "Ζωγράφου"
        }
      },
      "invoiceHeader": {
        "series": "A",
        "aa": "1011",
        "issueDate": "2026-09-24",
        "invoiceType": "1.1",
        "currency": "EUR"
      },
      "paymentMethods": [
        {
          "type": 3,
          "amount": 125.7
        }
      ],
      "invoiceDetails": [
        {
          "lineNumber": 1,
          "lineCode": "SRV-100",
          "quantity": 1,
          "measurementUnit": 1,
          "measurementUnitLabel": "ΤΜΧ",
          "lineUnitPrice": 100,
          "totalNetPriceBeforeDiscount": 100,
          "totalDiscountValue": 0,
          "netValue": 100,
          "vatCategory": 1,
          "vatCategoryPercent": 24,
          "vatAmount": 24,
          "lineDescription": "Προϊόν Α",
          "incomeClassification": [
            {
              "classificationType": "E3_561_001",
              "classificationCategory": "category1_1",
              "amount": 100
            }
          ]
        }
      ],
      "taxesTotals": [
        {
          "taxType": 1,
          "taxCategory": 6,
          "underlyingValue": 100,
          "taxAmount": 4.0,
          "reducesPayable": true,
          "taxTypeLabel": "Παρακράτηση φόρου 4%"
        },
        {
          "taxType": 2,
          "taxCategory": 10,
          "underlyingValue": 100,
          "taxAmount": 2.0,
          "reducesPayable": false,
          "taxTypeLabel": "Λοιπά τέλη"
        },
        {
          "taxType": 3,
          "taxCategory": 17,
          "underlyingValue": 100,
          "taxAmount": 3.0,
          "reducesPayable": false,
          "taxTypeLabel": "Λοιποί φόροι"
        },
        {
          "taxType": 4,
          "taxCategory": 1,
          "underlyingValue": 100,
          "taxAmount": 1.2,
          "reducesPayable": false,
          "taxTypeLabel": "Ψηφιακό τέλος συναλλαγής 1,2%"
        },
        {
          "taxType": 5,
          "underlyingValue": 100,
          "taxAmount": 0.5,
          "reducesPayable": true,
          "taxTypeLabel": "Κρατήσεις"
        }
      ],
      "invoiceSummary": {
        "totalNetValue": 100,
        "totalVatAmount": 24,
        "totalWithheldAmount": 4.0,
        "totalFeesAmount": 2.0,
        "totalStampDutyAmount": 1.2,
        "totalOtherTaxesAmount": 3.0,
        "totalDeductionsAmount": 0.5,
        "totalGrossValue": 125.7,
        "incomeClassification": [
          {
            "classificationType": "E3_561_001",
            "classificationCategory": "category1_1",
            "amount": 100
          }
        ]
      },
      "providerAdditionalInvoiceDetails": {
        "issuer": {
          "name": "TEST ISSUER ΙΚΕ",
          "profession": "Εμπόριο ειδών θέρμανσης",
          "taxoffice": "Α' Αθηνών",
          "addressStreet": "Οδός Δοκιμής",
          "addressNumber": "1",
          "addressPostalCode": "10431",
          "addressCity": "Αθήνα",
          "addressCountry": "Ελλάδα",
          "phone": "2100000000",
          "email": "info@example.com",
          "webSite": "www.example.com",
          "registryNumber": "ΓΕΜΗ: 000000000000",
          "emtyLine2": "IBAN: GR00 0000 0000 0000 0000 0000 000"
        },
        "counterpart": {
          "code": "C-0001",
          "name": "TEST CLIENT ΑΕ",
          "profession": "Χονδρικό εμπόριο",
          "taxoffice": "Ζωγράφου",
          "addressStreet": "Οδός Πελάτη",
          "addressNumber": "10",
          "addressPostalCode": "15772",
          "addressCity": "Ζωγράφου",
          "addressCountry": "Ελλάδα",
          "phone": "2100000001",
          "email": "client@example.com"
        },
        "additionalDetails": {
          "documentLabel": "Τιμολόγιο Πώλησης",
          "documentLanguageCode": "EL",
          "documentSizeCode": 0,
          "documentComments": "Εξόφληση εντός 30 ημερών.",
          "paymentMethodInvoiceLabel": "Μετρητά"
        }
      }
    }
  ]
}