> For the complete documentation index, see [llms.txt](https://docs.cleartax.in/e-invoicing-v2/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.cleartax.in/e-invoicing-v2/userguide/getting-started/onboarding/business-addition.md).

# Business addition

Add GSTIN and NIC credentials to authorise Cleartax for generating E-Invoices

#### Step 1: Enter GSTIN for business for E-Invoicing. Display would populate State name for GSTIN automatically. Click on Connect to E-invoicing portal

![](https://3997047618-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MWiYz7-ekYFhiNJ4j84%2F-MY4oen91gXj-e4YWVB6%2F-MY4ptvOcTBDcCK2VKq7%2Fimage.png?alt=media\&token=6b5818a9-2dd7-497b-9488-c714db880083)

#### Step 2: Enter NIC portal credentials (<https://einvoice1.gst.gov.in/>). You can use same credentials as used for Eway bill generation if already. Enter Captcha shown. If you have already generated API username password , click on Enter API username/Password in right section

![](https://3997047618-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MWiYz7-ekYFhiNJ4j84%2F-MY4pwNWJALjFbj1m08J%2F-MY4qgTEDtv0cXSLTjSy%2Fimage.png?alt=media\&token=b6f17823-107d-44f3-b7d3-d0949f34829f)

#### Step 3: Enter OTP for new GSP registration of Defmacro

#### Step 4: Enter API username and Password you want to set for being used for Cleartax and click on Authorize Cleartax. Click on forgot password if you have already generated API username /password and forgot password

![](https://3997047618-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MWiYz7-ekYFhiNJ4j84%2F-MY4qwtHvHZqYjkpBQN4%2F-MY4sfl5klapFhsxdEHZ%2Fimage.png?alt=media\&token=33c5bbc5-e0d7-4211-8475-7a72e28e4eaf)

#### If Forgot password then provide OTP to reset password

![](https://3997047618-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MWiYz7-ekYFhiNJ4j84%2F-MY4szFif_zIyiGvIKBh%2F-MY4tMCw255z9Xiouu-A%2Fimage.png?alt=media\&token=cbbf5750-2514-4db3-b8c8-64739629ed3c)

#### This would complete Business addition process and you will see Setup business unit as closed and highlighted in green

![](https://3997047618-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MWiYz7-ekYFhiNJ4j84%2F-MY4tpZZkChuH-AckCMj%2F-MY4uC_mP03zzkvflKZR%2Fimage.png?alt=media\&token=c8beca75-ef9c-476d-a51e-5b28959a9b5f)