> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.refrens.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# (Malaysia) How to Add SST, TIN, and other IDs in Billing Details?

While creating invoices and other documents, you may want to add SST, TIN, and other IDs to your billing/shipping details.  
  
Let's see how you can add **SST** (Sales & Service Tax) Registration Number, **TIN** (Tax Identification Number), and Additional IDs such as **BRN **(Business Registration Number), **NRIC** (National Registration Identification Card), **TTR** (Tourism Tax Registration Number), **PAS** (Passport Number), etc. to your documents.

Firstly, go to the Billed by/Billed To section, and navigate to **Tax Information** :

![](https://storage.crisp.chat/users/helpdesk/website/ab884d8153100800/8n9tsx7lcklbgkn5dw-v9ubfjvnz6u_lb1hi1.png =600x372)
By default, you will be able to see fields for **SST** & **TIN**.

To add more IDs such as **BRN**, **NRIC**, **TTR**, or **PAS**, click on **“Add more Additional IDs”** as shown below:

![](https://storage.crisp.chat/users/helpdesk/website/ab884d8153100800/cys6rnrctqscmjbgr5deax2dcdw0bf_13ztggg.gif =800x372)
After adding additional IDs, you can use the “Use for E-invoice” OR “Use for Invoice” checkboxes to get more control over which ID is used in your Invoice/E-invoice:

![](https://storage.crisp.chat/users/helpdesk/website/ab884d8153100800/ifoindr3jex71jwyol9xsajkuynisg_14zu4ku.png =800x300)
That's it! If you need more help, feel free to drop an email at [care@refrens.com](mailto:care@refrens.com) OR just drop a message on live chat support for quicker assistance.