We want to know that how to add multi state gst number in quickbook

Glad to have you here, useranwar_p.

I already answered a similar question you've posted. You can view my response through this link: https://quickbooks.intuit.com/learn-support/global/tax/re-we-need-help-of-about-the-addition-of-multistate-gst-number/01/752243#M984, where I explained everything you need to know about adding multiple GST numbers in QuickBooks.

Additionally, I've included our Year End guide for reference. This article contains information that'll help you complete all the year-end tasks and end the year smoothly.

I encourage keeping us updated if you have other questions or concerns about GST. Doing so helps us to provide the assistance you need.