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Invoice basics
BT-1
BT-2
BT-3
BT-5
BT-6
BT-7
BT-8
BT-10
BT-11
BT-12
BT-14
BT-15
BT-16
BT-17
BT-18
BT-19
BT-21
BT-22
BT-23
BT-24
BT-25
BT-26
Delivery and payment
BT-9
BT-13
BT-20
BT-59
BT-60
BT-61
BT-70
BT-71
BT-72
BT-73
BT-74
BT-75
BT-76
BT-77
BT-78
BT-79
BT-80
BT-81
BT-82
BT-83
BT-84
BT-85
BT-86
BT-87
BT-88
BT-89
BT-90
BT-91
Seller details
BT-27
BT-28
BT-29
BT-30
BT-31
BT-32
BT-33
BT-34
BT-35
BT-36
BT-37
BT-38
BT-39
BT-40
BT-41
BT-42
BT-43
BT-62
BT-63
BT-64
BT-65
BT-66
BT-67
BT-68
BT-69
Buyer details
BT-44
BT-45
BT-46
BT-47
BT-48
BT-49
BT-50
BT-51
BT-52
BT-53
BT-54
BT-55
BT-56
BT-57
BT-58
Discounts and charges
BT-92
BT-93
BT-94
BT-95
BT-96
BT-97
BT-98
BT-99
BT-100
BT-101
BT-102
BT-103
BT-104
BT-105
Taxes and totals
BT-106
BT-107
BT-108
BT-109
BT-110
BT-111
BT-112
BT-113
BT-114
BT-115
BT-116
BT-117
BT-118
BT-119
BT-120
BT-121
BT-122
BT-123
BT-124
BT-125
Line items
BT-126
BT-127
BT-128
BT-129
BT-130
BT-131
BT-132
BT-133
BT-134
BT-135
BT-136
BT-137
BT-138
BT-139
BT-140
BT-141
BT-142
BT-143
BT-144
BT-145
BT-146
BT-147
BT-148
BT-149
BT-150
BT-151
BT-152
BT-153
BT-154
BT-155
BT-156
BT-157
BT-158
BT-159
BT-160
BT-161
BT-162
BT-163
BT-164
BT-165
BT-185
BT-186
ZUGFeRD Profiles
  1. E-Invoicing Resources
  2. XRechnung Fields
  3. BT-27

Reference

Markdown export

BT-27 Seller Name

The full formal name by which the seller is registered in the national registry of legal entities or as a taxable person or otherwise trades as a person or persons

BT Reference CardQuick answerIn plain languageWhat you usually enter hereWhat goes wrong oftenExamples in contextValid ExamplesInvalid ExamplesRelated FieldsXML mapping and field factsXML ImplementationValidation RulesWhy the standard cares about this fieldFAQOfficial sources and tools

BT-27 (Seller name) is the full legal name of the supplier issuing the invoice. Mandatory under EN 16931, it must match the entity registered under the seller VAT identifier (BT-31). Use the legal form as registered, not a marketing variation. Example: Musterverkäufer GmbH.

BT-27 · EN 16931 / XRechnung 3.x

BT Reference Card#

Canonical EN 16931 / XRechnung facts for this business term — citable from this anchor.

BT code
BT-27
Name
Seller Name
Cardinality
Mandatory (M)
Business group
BG-4 SELLER
Data type
Text
Example value
Musterverkäufer GmbH

Quick answer#

The full formal name by which the seller is registered in the national registry of legal entities or as a taxable person or otherwise trades as a person or persons

Seller details

Who issued the invoice and how the recipient can identify that business reliably.

In plain language#

The full formal name by which the seller is registered in the national registry of legal entities or as a taxable person or otherwise trades as a person or persons

The full formal name by which the seller is registered in the national registry of legal entities or as a taxable person or otherwise trades as a person or persons

Essential for identifying the invoice issuer and legal entity responsible for the transaction

What you usually enter here#

Free text with standard business name characters

Typical valid values include: Mustermann GmbH & Co. KG, ABC Technologies AG, Schmidt Consulting UG (haftungsbeschränkt), Maria Müller Einzelunternehmen

Mandatory field for all electronic invoices according to EN 16931 and German e-invoice regulations

What goes wrong often#

Avoid values like: , AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Relevant rule codes: BR-CO-26

Examples in context#

Essential for identifying the invoice issuer and legal entity responsible for the transaction

Mandatory field for all electronic invoices according to EN 16931 and German e-invoice regulations

Valid Examples#

Use these points as the practical checks for this section.

  • Mustermann GmbH & Co. KG
  • ABC Technologies AG
  • Schmidt Consulting UG (haftungsbeschränkt)
  • Maria Müller Einzelunternehmen

Invalid Examples#

Use these points as the practical checks for this section.

  • AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

Related Fields#

Essential for identifying the invoice issuer and legal entity responsible for the transaction

BT-28 Seller trading name
BT-29 Seller identifier
BT-30 Seller legal registration identifier
BT-31 Seller VAT Identifier
BT-32 Seller tax registration identifier
BT-33 Seller additional legal information
BT-34 Seller Electronic Address
BT-35 Seller Address Line 1
BT-36 Seller address line 2
BT-37 Seller City
BT-38 Seller Post Code
BT-39 Seller country subdivision
BT-40 Seller Country Code

XML mapping and field facts#

Open the technical reference if you need XML paths, validator rule codes, legal wording, or schema-specific mapping details.

Field ID:

BT-27

Data Type:

text

Cardinality:

1..1

Requirement:

Mandatory

Max Length:

200 characters

Since Version:

XRechnung 1.0+

XML Implementation#

UBL 2.1 Syntax
/Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name
CII (UN/CEFACT) Syntax
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeAgreement/ram:SellerTradeParty/ram:Name

Validation Rules#

BR-CO-26

BR-CO-26

Why the standard cares about this field#

Business Context

Essential for identifying the invoice issuer and legal entity responsible for the transaction

Legal Requirement

Mandatory field for all electronic invoices according to EN 16931 and German e-invoice regulations

FAQ#

Should I use the registered company name or trading name?

Use the full registered legal name as it appears in official business registers. Trading names should be included in additional seller name fields if needed.

What about company suffixes like GmbH, AG, or UG?

Include the complete legal form (GmbH, AG, UG, etc.) as it is part of the official registered name and required for legal identification.

Can I abbreviate the seller name if it is very long?

The seller name should not be abbreviated as it serves legal identification purposes. If the name exceeds character limits, consider using the additional seller name fields.

Official sources and tools#

KoSIT Validator
Invoice Converter
XRechnung Standard
Test Suite
BT-26BT-28
On this page
BT Reference CardQuick answerIn plain languageWhat you usually enter hereWhat goes wrong oftenExamples in contextValid ExamplesInvalid ExamplesRelated FieldsXML mapping and field factsXML ImplementationValidation RulesWhy the standard cares about this fieldFAQOfficial sources and tools

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