@Marcell
If you are building your own webstore, you may explore 2CO as the payment gateway to integrate with your QBO account.
https://www. 2checkout.com/referral?r=3f97f16f5e
If you are using Shopify, you may integrate it with Chargify an/or Synder
https:// mbsy.co/DJtTL
https:// synder.grsm.io/quickbooks
As for AST Filing & Reporting app, you may explore Taxjar
https:// taxjar.grsm.io/mytax
