Credit notes & correlations¶
Which credit note¶
| Case | Type | What to fill in |
|---|---|---|
| Credit for a wholesale invoice to a business (return, discount, cancellation) | 5.2 (recommended) |
Nothing extra |
| The same, correlated with the original invoice | 5.1 |
correlatedInvoices with the MARK of the original. See the warning below. |
| Cancelling or refunding a retail receipt (11.1, 11.2, 11.3, 11.5) | 11.4 |
correlatedInvoices (optional) |
Credit note amounts are positive. The type is what marks it as a credit.
Why 5.2 is recommended
AADE (the Greek tax authority) needs time to sync a new document, up to 24 hours. If you send a credit note with correlatedInvoices pointing to a MARK that is not synced yet, AADE replies that it cannot find the MARK and the credit note is rejected. To keep your application from stalling, prefer 5.2. Use 5.1 only when the original was issued well before.
Cancelling a document¶
An issued document cannot be deleted or cancelled. It can only be reversed with the proper credit note, with the same amounts and classifications. The CancelDeliveryNote / CancelReceivingNote calls apply only to delivery and receiving notes (9.x / 10.x).
If the original was self-billed (selfPricing: true), issue the credit note as self-billed too, so that the reversal has the correct signs.
Correlation¶
| Field | What to put |
|---|---|
invoiceHeader.correlatedInvoices |
Array with the MARK of the original, e.g. [400001930000001]. You received the MARK in the response when the original was issued. |
invoiceHeader.correlatedInvoicesLabel |
Text for the PDF, e.g. "Τιμολόγιο Πώλησης A 1001" (Sales Invoice A 1001). |
If the original was issued Offline and has no MARK yet, wait until it gets one. Find it with RequestTransmittedDocs and uid.
Don't remember the MARK?
Search with RequestTransmittedDocs by series/number or UID.
Ready-made examples¶
5.1 — Credit invoice, correlated
{
"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": "1004",
"issueDate": "2026-09-24",
"invoiceType": "5.1",
"currency": "EUR",
"correlatedInvoices": [
400001930000001
],
"correlatedInvoicesLabel": "Τιμολόγιο Πώλησης A 1001"
},
"paymentMethods": [
{
"type": 5,
"amount": 124
}
],
"invoiceDetails": [
{
"lineNumber": 1,
"lineCode": "655-000023",
"quantity": 1,
"measurementUnitLabel": "ΤΜΧ",
"lineUnitPrice": 120,
"totalNetPriceBeforeDiscount": 120,
"totalDiscountValue": 20,
"netValue": 100,
"vatCategory": 1,
"vatCategoryPercent": 24,
"vatAmount": 24,
"lineDescription": "Αντικατάσταση Λέβητα",
"incomeClassification": [
{
"classificationType": "E3_561_001",
"classificationCategory": "category1_1",
"amount": 100
}
]
}
],
"invoiceSummary": {
"totalNetValue": 100,
"totalVatAmount": 24,
"totalWithheldAmount": 0,
"totalFeesAmount": 0,
"totalStampDutyAmount": 0,
"totalOtherTaxesAmount": 0,
"totalDeductionsAmount": 0,
"totalGrossValue": 124,
"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": "Πιστωτικό Τιμολόγιο",
"documentLanguageCode": "EL",
"documentSizeCode": 0,
"documentComments": "Εξόφληση εντός 30 ημερών.",
"paymentMethodInvoiceLabel": "Επί πιστώσει"
}
}
}
]
}
5.2 — Credit invoice, non-correlated
{
"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": "1005",
"issueDate": "2026-09-24",
"invoiceType": "5.2",
"currency": "EUR"
},
"paymentMethods": [
{
"type": 5,
"amount": 124
}
],
"invoiceDetails": [
{
"lineNumber": 1,
"lineCode": "655-000023",
"quantity": 1,
"measurementUnitLabel": "ΤΜΧ",
"lineUnitPrice": 120,
"totalNetPriceBeforeDiscount": 120,
"totalDiscountValue": 20,
"netValue": 100,
"vatCategory": 1,
"vatCategoryPercent": 24,
"vatAmount": 24,
"lineDescription": "Αντικατάσταση Λέβητα",
"incomeClassification": [
{
"classificationType": "E3_561_001",
"classificationCategory": "category1_1",
"amount": 100
}
]
}
],
"invoiceSummary": {
"totalNetValue": 100,
"totalVatAmount": 24,
"totalWithheldAmount": 0,
"totalFeesAmount": 0,
"totalStampDutyAmount": 0,
"totalOtherTaxesAmount": 0,
"totalDeductionsAmount": 0,
"totalGrossValue": 124,
"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": "Πιστωτικό Τιμολόγιο",
"documentLanguageCode": "EL",
"documentSizeCode": 0,
"documentComments": "Εξόφληση εντός 30 ημερών.",
"paymentMethodInvoiceLabel": "Επί πιστώσει"
}
}
}
]
}
11.4 — Retail credit note
{
"invoice": [
{
"issuer": {
"vatNumber": "123456789",
"country": "GR",
"branch": 0
},
"invoiceHeader": {
"series": "A",
"aa": "1009",
"issueDate": "2026-09-24",
"invoiceType": "11.4",
"currency": "EUR"
},
"paymentMethods": [
{
"type": 3,
"amount": 124
}
],
"invoiceDetails": [
{
"lineNumber": 1,
"lineCode": "655-000023",
"quantity": 1,
"measurementUnitLabel": "ΤΜΧ",
"lineUnitPrice": 120,
"totalNetPriceBeforeDiscount": 120,
"totalDiscountValue": 20,
"netValue": 100,
"vatCategory": 1,
"vatCategoryPercent": 24,
"vatAmount": 24,
"lineDescription": "Αντικατάσταση Λέβητα",
"incomeClassification": [
{
"classificationType": "E3_561_003",
"classificationCategory": "category1_1",
"amount": 100
}
]
}
],
"invoiceSummary": {
"totalNetValue": 100,
"totalVatAmount": 24,
"totalWithheldAmount": 0,
"totalFeesAmount": 0,
"totalStampDutyAmount": 0,
"totalOtherTaxesAmount": 0,
"totalDeductionsAmount": 0,
"totalGrossValue": 124,
"incomeClassification": [
{
"classificationType": "E3_561_003",
"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"
},
"additionalDetails": {
"documentLabel": "Πιστωτικό Στοιχείο Λιανικής",
"documentLanguageCode": "EL",
"documentSizeCode": 7,
"documentComments": "Εξόφληση εντός 30 ημερών.",
"paymentMethodInvoiceLabel": "Επί πιστώσει"
}
}
}
]
}