E-invoice / Rules

Rules 332 codes

E-invoice rule codes

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BR

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 58 codes

• BR-01 The specification identifier (BT-24, element cbc:CustomizationID) is missing
• BR-02 The invoice number (BT-1, element cbc:ID) is missing
• BR-03 The issue date (BT-2, element cbc:IssueDate) is missing
• BR-04 The invoice type code (BT-3) is missing
• BR-05 The invoice currency code (BT-5, element cbc:DocumentCurrencyCode)
• BR-06 The seller name (BT-27) is missing
• BR-07 The buyer name (BT-44) is missing
• BR-08 The seller postal address (BG-5, element cac:PostalAddress) is missing
• BR-09 The seller address is missing the country code (BT-40)
• BR-10 The buyer postal address (BG-8, element cac:PostalAddress) is missing
• BR-11 The buyer address is missing the country code (BT-55)
• BR-12 Missing: the sum of invoice line net amounts (BT-106)
• BR-13 Missing: the invoice total amount without VAT (BT-109)
• BR-14 Missing: the invoice total amount with VAT (BT-112)
• BR-15 Missing: the amount due for payment (BT-115)
• BR-16 The invoice has no lines at all (BG-25)
• BR-17 The payee (BG-10) needs its own name in cac:PartyName/cbc:Name and it
• BR-18 The seller tax representative (BG-11) needs a name (BT-62)
• BR-19 The seller tax representative (BG-11) needs a postal address
• BR-20 The tax representative address is missing the country code (BT-69)
• BR-21 Line 1 has no identifier (BT-126)
• BR-22 Line 1 has no quantity (BT-129)
• BR-23 Line 1: the quantity needs a unit of measure code (BT-130) in the unitCode
• BR-24 Line 1 has no net amount (BT-131)
• BR-25 Line 1 has no item name (BT-153) in cac:Item/cbc:Name
• BR-26 Line 1 has no item net price (BT-146) in cac:Price/cbc:PriceAmount
• BR-27 Line 1: the item net price (BT-146) must not be negative
• BR-28 Line 1: the item gross price (BT-148) must not be negative
• BR-29 The end of the period (2026-08-31) is earlier than its start (2026-09-30)
• BR-30 The end of the period (2026-08-31) is earlier than its start (2026-09-30)
• BR-31 The allowance on document level has no amount
• BR-32 The allowance on document level has no VAT category code
• BR-33 The allowance on document level needs a reason
• BR-36 The charge on document level has no amount
• BR-37 The charge on document level has no VAT category code
• BR-38 The charge on document level needs a reason
• BR-41 The allowance on line level has no amount
• BR-42 The allowance on line level needs a reason
• BR-43 The charge on line level has no amount
• BR-44 The charge on line level needs a reason
• BR-45 The VAT breakdown is missing the taxable amount (BT-116, cbc:TaxableAmount)
• BR-46 The VAT breakdown is missing the VAT category tax amount
• BR-47 The VAT breakdown is missing the VAT category code (BT-118)
• BR-48 The VAT breakdown is missing the VAT category rate (BT-119, cbc:Percent)
• BR-49 Payment instructions (BG-16) need a payment means code (BT-81)
• BR-50 The payment account identifier (BT-84) is empty
• BR-51 The payment card number (BT-87) is longer than
• BR-52 Every supporting document (BG-24) needs a reference (BT-122) in cbc:ID
• BR-53 If the VAT accounting currency code is present
• BR-54 An item attribute (BG-32) needs both a name (BT-160, cbc:Name) and a value
• BR-55 A reference to a preceding invoice (BG-3) needs that invoice number (BT-25)
• BR-56 The seller tax representative (BG-11) needs a VAT identifier (BT-63)
• BR-57 The deliver to address (BG-15) is missing the country code (BT-80)
• BR-61 With payment means 58 (credit transfer) the payment account identifier
• BR-62 The seller electronic address (BT-34) needs a schemeID attribute, for example
• BR-63 The buyer electronic address (BT-49) needs a schemeID attribute
• BR-64 The item standard identifier (BT-157) needs a schemeID attribute, for example
• BR-65 The item classification identifier (BT-158) needs a listID attribute

BR-AE

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-AE-01 The document uses VAT category AE (VAT reverse charge), so the VAT
• BR-AE-02 With VAT category AE (VAT reverse charge) the invoice has to carry
• BR-AE-03 With VAT category AE (VAT reverse charge) the invoice has to carry
• BR-AE-04 With VAT category AE (VAT reverse charge) the invoice has to carry
• BR-AE-05 Line 1 has VAT category AE (VAT reverse charge), so the VAT rate
• BR-AE-06 The allowance on document level has VAT category AE (VAT reverse charge)
• BR-AE-07 The charge on document level has VAT category AE (VAT reverse charge)
• BR-AE-08 The taxable amount for VAT category AE (VAT reverse charge)
• BR-AE-09 With VAT category AE (VAT reverse charge) the VAT amount in the breakdown
• BR-AE-10 With VAT category AE (VAT reverse charge) the VAT breakdown has to carry

BR-AF

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-AF-01 The document uses VAT category L (IGIC, Canary Islands), so the VAT
• BR-AF-02 With VAT category L (IGIC, Canary Islands) the invoice has to carry
• BR-AF-03 With VAT category L (IGIC, Canary Islands) the invoice has to carry
• BR-AF-04 With VAT category L (IGIC, Canary Islands) the invoice has to carry
• BR-AF-05 Line 1 has VAT category L (IGIC, Canary Islands), so the VAT rate
• BR-AF-06 The allowance on document level has VAT category L (IGIC, Canary Islands)
• BR-AF-07 The charge on document level has VAT category L (IGIC, Canary Islands)
• BR-AF-08 The taxable amount for VAT category L (IGIC, Canary Islands) at the rate
• BR-AF-09 With VAT category L (IGIC, Canary Islands) the VAT amount
• BR-AF-10 With VAT category L (IGIC, Canary Islands) the VAT breakdown must not carry

BR-AG

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-AG-01 The document uses VAT category M (IPSI, Ceuta and Melilla), so the VAT
• BR-AG-02 With VAT category M (IPSI, Ceuta and Melilla) the invoice has to carry
• BR-AG-03 With VAT category M (IPSI, Ceuta and Melilla) the invoice has to carry
• BR-AG-04 With VAT category M (IPSI, Ceuta and Melilla) the invoice has to carry
• BR-AG-05 Line 1 has VAT category M (IPSI, Ceuta and Melilla), so the VAT rate
• BR-AG-06 The allowance on document level has VAT category M
• BR-AG-07 The charge on document level has VAT category M (IPSI, Ceuta and Melilla)
• BR-AG-08 The taxable amount for VAT category M (IPSI, Ceuta and Melilla) at the rate
• BR-AG-09 With VAT category M (IPSI, Ceuta and Melilla) the VAT amount
• BR-AG-10 With VAT category M (IPSI, Ceuta and Melilla) the VAT breakdown

BR-B

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 2 codes

• BR-B-01 VAT category B (split payment) may only be used on a domestic Italian
• BR-B-02 The document uses VAT category B (split payment) and category

BR-CL

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 23 codes

• BR-CL-01 Use a code from the UNTDID 1001 for invoices
• BR-CL-03 Use a code from the ISO 4217 alpha
• BR-CL-04 Use a code from the ISO 4217 alpha
• BR-CL-05 Use a code from the ISO 4217 alpha
• BR-CL-06 Use a code from the UNTDID 2005 limited
• BR-CL-07 Use a code from the UNTDID 1153 code list
• BR-CL-08 Use a code from the UNTDID 4451 code list
• BR-CL-10 Use a code from the ISO 6523 ICD code list
• BR-CL-11 Use a code from the ISO 6523 ICD code list
• BR-CL-13 Use a code from the UNTDID 7143 code list
• BR-CL-14 Use a code from the ISO 3166-1 alpha-2 (for example IE, NL, DE) code list
• BR-CL-15 Use a code from the ISO 3166-1 alpha-2 code list
• BR-CL-16 Use a code from the UNTDID 4461 (for example 58 for a SEPA credit transfer)
• BR-CL-17 Use a code from the UNTDID 5305 (S, Z, E, AE, K, G, O, L, M, B) code list
• BR-CL-18 Use a code from the UNTDID 5305 (S, Z, E, AE, K, G, O, L, M, B) code list
• BR-CL-19 Use a code from the UNCL 5189 code list
• BR-CL-20 Use a code from the UNCL 7161 code list
• BR-CL-21 Use a code from the ISO 6523 ICD code list
• BR-CL-22 Use a code from the CEF VATEX (for example VATEX-EU-AE) code list
• BR-CL-23 Use a code from the UN/ECE Rec
• BR-CL-24 Use a code from the MIMEMediaType
• BR-CL-25 Use a code from the CEF EAS code list
• BR-CL-26 Use a code from the ISO 6523 ICD code list

BR-CO

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 20 codes

• BR-CO-03 The value added tax point date (BT-7, cbc:TaxPointDate) and its code
• BR-CO-04 Line 1 has no VAT category code (BT-151)
• BR-CO-09 A VAT identifier has to start with a country code from ISO 3166
• BR-CO-10 Correct the total or the line amounts
• BR-CO-11 The allowance total does not add up: cbc:AllowanceTotalAmount (BT-107)
• BR-CO-12 The charge total does not add up: cbc:ChargeTotalAmount (BT-108)
• BR-CO-13 The invoice total without VAT (BT-109) should be the line total minus
• BR-CO-14 The invoice total VAT amount (BT-110, cac:TaxTotal/cbc:TaxAmount)
• BR-CO-15 The invoice total with VAT (BT-112) should be the total without VAT
• BR-CO-16 The amount due for payment (BT-115) should be the total with VAT
• BR-CO-17 The VAT in the breakdown does not match: taxable amount
• BR-CO-18 The VAT breakdown (BG-23) is missing
• BR-CO-19 The invoicing period is present but empty
• BR-CO-20 The invoicing period is present but empty
• BR-CO-21 The allowance on document level needs a reason
• BR-CO-22 The charge on document level needs a reason
• BR-CO-23 The allowance on line level needs a reason
• BR-CO-24 The charge on line level needs a reason
• BR-CO-25 The amount due for payment is positive, so the invoice needs either
• BR-CO-26 The seller carries no identifier

BR-E

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-E-01 The document uses VAT category E (exempt from VAT), so the VAT breakdown
• BR-E-02 With VAT category E (exempt from VAT) the invoice has to carry the seller
• BR-E-03 With VAT category E (exempt from VAT) the invoice has to carry the seller
• BR-E-04 With VAT category E (exempt from VAT) the invoice has to carry the seller
• BR-E-05 Line 3 has VAT category E (exempt from VAT), so the VAT rate has to be 0
• BR-E-06 The allowance on document level has VAT category E (exempt from VAT)
• BR-E-07 The charge on document level has VAT category E (exempt from VAT), so the VAT
• BR-E-08 The taxable amount for VAT category E (exempt from VAT)
• BR-E-09 With VAT category E (exempt from VAT) the VAT amount in the breakdown
• BR-E-10 With VAT category E (exempt from VAT) the VAT breakdown has to carry

BR-G

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-G-01 The document uses VAT category G (export outside the EU), so the VAT
• BR-G-02 With VAT category G (export outside the EU) the invoice has to carry
• BR-G-03 With VAT category G (export outside the EU) the invoice has to carry
• BR-G-04 With VAT category G (export outside the EU) the invoice has to carry
• BR-G-05 Line 1 has VAT category G (export outside the EU), so the VAT rate
• BR-G-06 The allowance on document level has VAT category G (export outside the EU)
• BR-G-07 The charge on document level has VAT category G (export outside the EU)
• BR-G-08 The taxable amount for VAT category G (export outside the EU)
• BR-G-09 With VAT category G (export outside the EU) the VAT amount in the breakdown
• BR-G-10 With VAT category G (export outside the EU) the VAT breakdown has to carry

BR-IC

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 12 codes

• BR-IC-01 The document uses VAT category K (intra-community supply), so the VAT
• BR-IC-02 With VAT category K (intra-community supply) the invoice has to carry
• BR-IC-03 With VAT category K (intra-community supply) the invoice has to carry
• BR-IC-04 With VAT category K (intra-community supply) the invoice has to carry
• BR-IC-05 Line 1 has VAT category K (intra-community supply), so the VAT rate
• BR-IC-06 The allowance on document level has VAT category K (intra-community supply)
• BR-IC-07 The charge on document level has VAT category K (intra-community supply)
• BR-IC-08 The taxable amount for VAT category K (intra-community supply)
• BR-IC-09 With VAT category K (intra-community supply) the VAT amount in the breakdown
• BR-IC-10 With VAT category K (intra-community supply) the VAT breakdown has to carry
• BR-IC-11 With an intra-community supply (category K) the invoice needs either
• BR-IC-12 With an intra-community supply (category K) the deliver to country code

BR-O

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 14 codes

• BR-O-01 The document uses VAT category O (not subject to VAT), so the VAT breakdown
• BR-O-02 With VAT category O (not subject to VAT) the document must not carry
• BR-O-03 With VAT category O (not subject to VAT) the document must not carry
• BR-O-04 With VAT category O (not subject to VAT) the document must not carry
• BR-O-05 Line 1 has VAT category O (not subject to VAT), so no VAT rate
• BR-O-06 The allowance on document level has VAT category O (not subject to VAT)
• BR-O-07 The charge on document level has VAT category O (not subject to VAT), so no
• BR-O-08 The taxable amount for VAT category O (not subject to VAT)
• BR-O-09 With VAT category O (not subject to VAT) the VAT amount in the breakdown
• BR-O-10 With VAT category O (not subject to VAT) the VAT breakdown has to carry
• BR-O-11 The document has a VAT breakdown with category O (not subject to VAT)
• BR-O-12 The document has a VAT breakdown with category O, so every invoice line
• BR-O-13 The document has a VAT breakdown with category O, so every document level
• BR-O-14 The document has a VAT breakdown with category O, so every document level

BR-S

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-S-01 The document uses VAT category S (standard rated), so the VAT breakdown
• BR-S-02 With VAT category S (standard rated) the invoice has to carry the seller
• BR-S-03 With VAT category S (standard rated) the invoice has to carry the seller
• BR-S-04 With VAT category S (standard rated) the invoice has to carry the seller
• BR-S-05 Line 1 has VAT category S (standard rated), so the VAT rate
• BR-S-06 The allowance on document level has VAT category S (standard rated)
• BR-S-07 The charge on document level has VAT category S (standard rated)
• BR-S-08 The taxable amount for VAT category S (standard rated) at the rate %
• BR-S-09 With VAT category S (standard rated) the VAT amount should be the taxable
• BR-S-10 With VAT category S (standard rated) the VAT breakdown must not carry

BR-Z

EN 16931 schematron (ConnectingEurope/eInvoicing-EN16931, licence EUPL 1.2), 10 codes

• BR-Z-01 The document uses VAT category Z (zero rated), so the VAT breakdown (BG-23)
• BR-Z-02 With VAT category Z (zero rated) the invoice has to carry the seller VAT
• BR-Z-03 With VAT category Z (zero rated) the invoice has to carry the seller VAT
• BR-Z-04 With VAT category Z (zero rated) the invoice has to carry the seller VAT
• BR-Z-05 Line 1 has VAT category Z (zero rated), so the VAT rate has to be 0
• BR-Z-06 The allowance on document level has VAT category Z (zero rated), so the VAT
• BR-Z-07 The charge on document level has VAT category Z (zero rated), so the VAT rate
• BR-Z-08 The taxable amount for VAT category Z (zero rated)
• BR-Z-09 With VAT category Z (zero rated) the VAT amount in the breakdown
• BR-Z-10 With VAT category Z (zero rated) the VAT breakdown must not carry

PEPPOL-COMMON-R

Peppol BIS Billing 3.0 (OpenPEPPOL, peppol-bis-invoice-3), 13 codes

• PEPPOL-COMMON-R040 A GLN needs a valid check digit under the GS
• PEPPOL-COMMON-R041 A Norwegian organisation number needs 9 digits and a valid modulo 11 check
• PEPPOL-COMMON-R042 A Danish CVR number is 8 digits, or DK followed by 8 digits
• PEPPOL-COMMON-R043 A Belgian enterprise number needs 10 digits and a valid modulo 97 check
• PEPPOL-COMMON-R044 An Italian IPA code should have 6 alphanumeric characters
• PEPPOL-COMMON-R045 An Italian Codice Fiscale should have 16 characters, or 11 digits
• PEPPOL-COMMON-R046 An Italian Codice Fiscale should have 16 characters, or 11 digits
• PEPPOL-COMMON-R047 An Italian Partita IVA should have 11 digits with a valid check digit
• PEPPOL-COMMON-R048 An Italian Partita IVA should have 11 digits with a valid check digit
• PEPPOL-COMMON-R049 A Swedish organisation number needs 10 digits and a valid check digit
• PEPPOL-COMMON-R050 An Australian ABN needs 11 digits and a valid check
• PEPPOL-COMMON-R052 A Danish P number should have 10 digits
• PEPPOL-COMMON-R053 A Danish SE number should look like DK followed

PEPPOL-EN16931-CL

Peppol BIS Billing 3.0 (OpenPEPPOL, peppol-bis-invoice-3), 6 codes

• PEPPOL-EN16931-CL001 Peppol accepts application/pdf, image/png, image/jpeg, text/csv, xlsx
• PEPPOL-EN16931-CL002 The reason code "…" is not in the UNCL 5189 code list
• PEPPOL-EN16931-CL003 The reason code "…" is not in the UNCL 7161 code list
• PEPPOL-EN16931-CL006 The value added tax point date code (BT-8)
• PEPPOL-EN16931-CL007 The currencyID attribute of cbc:Amount has to be an ISO 4217 currency code
• PEPPOL-EN16931-CL008 Look up the code for your identifier in the CEF EAS code list

PEPPOL-EN16931-F

Peppol BIS Billing 3.0 (OpenPEPPOL, peppol-bis-invoice-3), 1 codes

• PEPPOL-EN16931-F001 The date in cbc:IssueDate has to be written as YYYY-MM-DD and has to exist

PEPPOL-EN16931-P

Peppol BIS Billing 3.0 (OpenPEPPOL, peppol-bis-invoice-3), 11 codes

• PEPPOL-EN16931-P0100 For an ordinary invoice use 380
• PEPPOL-EN16931-P0101 For an ordinary credit note use 381
• PEPPOL-EN16931-P0104 The exemption reason code VATEX-EU-G belongs to VAT category G, but
• PEPPOL-EN16931-P0105 The exemption reason code VATEX-EU-O belongs to VAT category O, but
• PEPPOL-EN16931-P0106 The exemption reason code VATEX-EU-IC belongs to VAT category K, but
• PEPPOL-EN16931-P0107 The exemption reason code VATEX-EU-AE belongs to VAT category AE, but
• PEPPOL-EN16931-P0108 The exemption reason code VATEX-EU-D belongs to VAT category E, but
• PEPPOL-EN16931-P0109 The exemption reason code VATEX-EU-F belongs to VAT category E, but
• PEPPOL-EN16931-P0110 The exemption reason code VATEX-EU-I belongs to VAT category E, but
• PEPPOL-EN16931-P0111 The exemption reason code VATEX-EU-J belongs to VAT category E, but
• PEPPOL-EN16931-P0112 In Peppol, invoice type code 326 may be used only when both the seller

PEPPOL-EN16931-R

Peppol BIS Billing 3.0 (OpenPEPPOL, peppol-bis-invoice-3), 28 codes

• PEPPOL-EN16931-R001 The business process (BT-23, cbc:ProfileID) is missing
• PEPPOL-EN16931-R002 Only one invoice note (BT-22, cbc:Note) is allowed on document level
• PEPPOL-EN16931-R003 Add either the buyer reference (BT-10, cbc:BuyerReference) or the purchase
• PEPPOL-EN16931-R004 For Peppol, cbc:CustomizationID (BT-24) has to start with urn:cen.eu:en
• PEPPOL-EN16931-R005 The VAT accounting currency (BT-6) has to differ from the invoice currency
• PEPPOL-EN16931-R007 The business process (BT-23, cbc:ProfileID) has to look like
• PEPPOL-EN16931-R008 The element cbc:ProfileID is empty
• PEPPOL-EN16931-R010 The buyer electronic address (BT-49, cbc:EndpointID with a schemeID)
• PEPPOL-EN16931-R020 The seller electronic address (BT-34, cbc:EndpointID with a schemeID)
• PEPPOL-EN16931-R040 The allowance or charge amount should be the base amount times the percentage
• PEPPOL-EN16931-R041 If the allowance or charge percentage (cbc:MultiplierFactorNumeric)
• PEPPOL-EN16931-R042 If the allowance or charge base amount (cbc:BaseAmount) is given
• PEPPOL-EN16931-R043 cbc:ChargeIndicator has to be true (a charge) or false (an allowance)
• PEPPOL-EN16931-R044 A charge is not allowed on price level
• PEPPOL-EN16931-R046 The item net price (BT-146) should be the gross price minus the price
• PEPPOL-EN16931-R051 Every amount has to be in the invoice currency (EUR)
• PEPPOL-EN16931-R053 The document needs exactly one cac:TaxTotal group carrying the VAT
• PEPPOL-EN16931-R054 A cac:TaxTotal group without a VAT breakdown is allowed only when the VAT
• PEPPOL-EN16931-R055 The VAT amount in the invoice currency (BT-110) and in the VAT accounting
• PEPPOL-EN16931-R061 With a direct debit (payment means 59) the mandate reference identifier
• PEPPOL-EN16931-R080 Only one project reference (BT-11) is allowed on document level
• PEPPOL-EN16931-R100 Line 1: only one invoice line object reference (cac:DocumentReference)
• PEPPOL-EN16931-R101 Line 1: inside a line, cac:DocumentReference is only used for the invoiced
• PEPPOL-EN16931-R110 Line 1: the line period starts (…) before the invoicing period starts
• PEPPOL-EN16931-R111 Line 1: the line period ends (…) after the invoicing period ends
• PEPPOL-EN16931-R120 Line 1: the line net amount should be quantity 6 times price 45 divided
• PEPPOL-EN16931-R121 Line 1: the item price base quantity (BT-149, cac:Price/cbc:BaseQuantity)
• PEPPOL-EN16931-R130 Line 1: the unit of the price base quantity (…) has to be the same

BR-DE

XRechnung 3.x (itplr-kosit/xrechnung-schematron, Apache 2.0 licence), 31 codes

• BR-DE-1 XRechnung requires payment instructions (BG-16)
• BR-DE-2 XRechnung requires seller contact details (BG-6)
• BR-DE-3 The seller address is missing the city (BT-37, cbc:CityName)
• BR-DE-4 The seller address is missing the post code (BT-38, cbc:PostalZone)
• BR-DE-5 The seller contact details are missing the contact point name
• BR-DE-6 The seller contact details are missing the telephone number
• BR-DE-7 The seller contact details are missing the e-mail address
• BR-DE-8 The buyer address is missing the city (BT-52, cbc:CityName)
• BR-DE-9 The buyer address is missing the post code (BT-53, cbc:PostalZone)
• BR-DE-10 The deliver to address is missing the city (BT-77, cbc:CityName)
• BR-DE-11 The deliver to address is missing the post code (BT-78, cbc:PostalZone)
• BR-DE-14 XRechnung requires the VAT rate (BT-119) in every VAT breakdown
• BR-DE-15 XRechnung requires a buyer reference (BT-10, cbc:BuyerReference)
• BR-DE-16 The document uses VAT categories S, E, so it has to carry the seller VAT
• BR-DE-17 XRechnung expects an invoice type code (BT-3) from a narrower list
• BR-DE-18 An early payment discount in the payment terms (BT-20) should be written
• BR-DE-19 With a SEPA credit transfer (code 58) cac:PayeeFinancialAccount/cbc:ID
• BR-DE-20 With a SEPA direct debit (code 59)
• BR-DE-21 For XRechnung, cbc:CustomizationID (BT-24) should start with urn:cen.eu:en
• BR-DE-22 Every attachment needs its own filename attribute
• BR-DE-23-a With a credit transfer (code 58) the group cac:PayeeFinancialAccount
• BR-DE-23-b With a credit transfer (code 58) neither the card group (BG-18) nor
• BR-DE-24-a With a card payment (code 48) the group cac:CardAccount (BG-18)
• BR-DE-24-b With a card payment (code 48) neither the bank account group (BG-17) nor
• BR-DE-25-a With a direct debit (code 59) the group cac:PaymentMandate (BG-19)
• BR-DE-25-b With a direct debit (code 59) neither the payee account group (BG-17) nor
• BR-DE-26 A corrected invoice (type code 384) should reference the preceding invoice
• BR-DE-27 The seller telephone number (BT-42) should contain at least three digits
• BR-DE-28 The seller e-mail address (BT-43) should contain exactly one @, at least
• BR-DE-30 With a direct debit (BG-19) the bank assigned creditor identifier (BT-90)
• BR-DE-31 With a direct debit (BG-19) the debited account identifier (BT-91)

BR-DE-TMP

XRechnung 3.x (itplr-kosit/xrechnung-schematron, Apache 2.0 licence), 1 codes

• BR-DE-TMP-32 The document should state when the supply took place: either BT-72

BR-DEC

XRechnung 3.x (itplr-kosit/xrechnung-schematron, Apache 2.0 licence), 21 codes

• BR-DEC-01 The amount for the document level allowance amount (BT-92, cbc:Amount)
• BR-DEC-02 The amount for the document level allowance base amount
• BR-DEC-05 The amount for the document level charge amount (BT-99, cbc:Amount) has more
• BR-DEC-06 The amount for the document level charge base amount (BT-100, cbc:BaseAmount)
• BR-DEC-09 The amount for the sum of invoice line net amounts
• BR-DEC-10 The amount for the sum of allowances on document level
• BR-DEC-11 The amount for the sum of charges on document level
• BR-DEC-12 The amount for the invoice total amount without VAT
• BR-DEC-13 The invoice total VAT amount (cac:TaxTotal/cbc:TaxAmount) has more than
• BR-DEC-14 The amount for the invoice total amount with VAT
• BR-DEC-15 The invoice total VAT amount (cac:TaxTotal/cbc:TaxAmount) has more than
• BR-DEC-16 The amount for the paid amount (BT-113, cbc:PrepaidAmount) has more than
• BR-DEC-17 The amount for the rounding amount (BT-114, cbc:PayableRoundingAmount)
• BR-DEC-18 The amount for the amount due for payment (BT-115, cbc:PayableAmount)
• BR-DEC-19 The amount for the VAT category taxable amount (BT-116, cbc:TaxableAmount)
• BR-DEC-20 The amount for the VAT category tax amount (BT-117, cbc:TaxAmount) has more
• BR-DEC-23 The amount for the invoice line net amount (BT-131, cbc:LineExtensionAmount)
• BR-DEC-24 The amount for the invoice line allowance amount (BT-136, cbc:Amount)
• BR-DEC-25 The amount for the invoice line allowance base amount
• BR-DEC-27 The amount for the invoice line charge amount (BT-141, cbc:Amount) has more
• BR-DEC-28 The amount for the invoice line charge base amount (BT-142, cbc:BaseAmount)

BR-DEX

XRechnung 3.x (itplr-kosit/xrechnung-schematron, Apache 2.0 licence), 6 codes

• BR-DEX-01 The XRechnung extension allows only application/xml on top of the usual
• BR-DEX-04 In the XRechnung extension, schemeID=
• BR-DEX-05 In the XRechnung extension, schemeID=
• BR-DEX-06 In the XRechnung extension, schemeID=
• BR-DEX-07 In the XRechnung extension, the schemeID of the electronic address
• BR-DEX-08 In the XRechnung extension, schemeID=

BR-TMP

XRechnung 3.x (itplr-kosit/xrechnung-schematron, Apache 2.0 licence), 2 codes

• BR-TMP-2 The external document location (BT-124, cbc:URI) has to be a full address
• BR-TMP-6 The date in cbc:IssueDate has to be written as YYYY-MM-DD, with no time

ARL

our own check at ARLing, not from a schematron, 9 codes

• ARL-DATUM The date "…" in cbc:IssueDate is not a valid calendar day written
• ARL-DATUM-PORADIE The payment due date (…) is earlier than the issue date (2026-09-11)
• ARL-IBAN Check the account number for a typo
• ARL-ICDPH We expect SK followed by 10 digits, for example SK2020000000
• ARL-LEITWEG The buyer reference "…" looks like a German Leitweg-ID but does not match
• ARL-MENA The element cbc:Amount carries the currency USD while the invoice is in EUR
• ARL-PROFIL We ran the EN 16931 core rules only, without the Peppol and XRechnung rules
• ARL-SK-DIC-TVAR With schemeID="0245" the electronic address has to hold the Slovak tax
• ARL-SK-SCHEMEID The seller is in Slovakia

CII

our own check at ARLing, not from a schematron, 1 codes

• CII-01 This is an e-invoice in the CII syntax (UN/CEFACT Cross Industry Invoice)

XML

our own check at ARLing, not from a schematron, 3 codes

• XML-01 The file contains a DOCTYPE with its own definitions
• XML-02 The root element of the file is Nieco
• XML-03 The root element Invoice belongs in the namespace

Our check is not complete: we do not check the XSD schema and we do not implement every rule, and a file that passes says nothing about whether the buyer or the Peppol network will accept it. Licences for the quoted wordings are listed in our sources.