# BT-65 Tax representative address line 2

Additional address information for the seller tax representative, for example building, floor, or department.

## Quick answer

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

- [Validate XML](/en/xrechnung-validator?source=resource&bt=BT-65)
- [Convert invoice](/en/pdf-to-xrechnung?source=resource&bt=BT-65)

## In plain language

Use this line only when one address line is not enough to identify the fiscal representative unambiguously.

## What you usually enter here

Additional address details

Typical valid values include: 3rd Floor, Department VAT Services

Optional according to EN 16931-1.

## Where the field sits

BT-65 belongs to the Seller part of the invoice. UBL 2.1 Syntax: Invoice › cac:TaxRepresentativeParty › cac:PostalAddress › cbc:AdditionalStreetName. CII (UN/CEFACT) Syntax: rsm:CrossIndustryInvoice › rsm:SupplyChainTradeTransaction › ram:ApplicableHeaderTradeAgreement › ram:SellerTaxRepresentativeTradeParty › ram:PostalTradeAddress › ram:LineTwo.

## What goes wrong often

Avoid values like: AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

## Valid Examples

- 3rd Floor
- Department VAT Services

## Invalid Examples

- AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA

## Related Fields

- [BT-64 Tax representative address line 1](/resources/xrechnung/bt-64-tax-representative-address-line-1)
- [BT-66 Tax representative city](/resources/xrechnung/bt-66-tax-representative-city)

## 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-65

### Data Type:
text

### Cardinality:
0..1

### Requirement:
Optional

### Max Length:
100 characters

## XML Implementation

### UBL 2.1 Syntax
```
/Invoice/cac:TaxRepresentativeParty/cac:PostalAddress/cbc:AdditionalStreetName
```

### CII (UN/CEFACT) Syntax
```
/rsm:CrossIndustryInvoice/rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:SellerTaxRepresentativeTradeParty/ram:PostalTradeAddress/ram:LineTwo
```

## Create an XRechnung from your PDF

The converter reads the invoice and shows the fields it found before download, so you can check and correct the values. No PDF? Fill in the XRechnung directly in the form.

- [Convert invoice](/en/pdf-to-xrechnung)
- [Fill in XRechnung in the form](/en/create-xrechnung)

Download requires an account. Subscriptions from €10/month with annual billing (excl. taxes), or €5 per conversion (excl. taxes) without a subscription.

## Official sources and tools

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