# BT-33 Seller additional legal information

Additional legal information about the seller that should appear on the invoice.

## Quick answer

Additional legal information about the seller that should appear on the invoice.

> **Seller details**: Who issued the invoice and how the recipient can identify that business reliably.

## In plain language

Additional legal information about the seller that should appear on the invoice.

Additional legal information about the seller that should appear on the invoice.

Use this for court seat, management details, registration court, or other legal statements the business wants or must disclose.

## What you usually enter here

Free-text legal disclosure

Typical valid values include: Amtsgericht Köln HRB 12345

Optional according to EN 16931-1.

## What goes wrong often

Avoid values like:

## Examples in context

Use this for court seat, management details, registration court, or other legal statements the business wants or must disclose.

Optional according to EN 16931-1.

## Valid Examples

- Amtsgericht Köln HRB 12345

## Related Fields

Use this for court seat, management details, registration court, or other legal statements the business wants or must disclose.

- [BT-27 Seller Name](/resources/xrechnung/bt-27-seller-name)
- [BT-30 Seller legal registration identifier](/resources/xrechnung/bt-30-seller-legal-registration-identifier)

## 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-33

### Data Type:
text

### Cardinality:
0..1

### Requirement:
Optional

### Max Length:
200 characters

### Since Version:
Optional

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:CompanyLegalForm
```

### CII (UN/CEFACT) Syntax
```
/CrossIndustryInvoice/SupplyChainTradeTransaction/ApplicableHeaderTradeAgreement/ram:SellerTradeParty/ram:Description
```

## Why the standard cares about this field

### Business Context
Use this for court seat, management details, registration court, or other legal statements the business wants or must disclose.

### Legal Requirement
Optional according to EN 16931-1.

## Official sources and tools

- [KoSIT Validator](https://erechnungsvalidator.service-bw.de/)
- [Invoice Converter](/pdf-to-xrechnung)
- [XRechnung Standard](https://xeinkauf.de/xrechnung/)
- [Test Suite](https://github.com/itplr-kosit/xrechnung-testsuite)