You can start billing with serial number 1 under GST.
Yes if you customer/client is registered under GST, then you have to mention his GSTIN, and upload invoice details in GSTR-1, so that your client can avail input tax credit.
I think most of the hosting providers are asking for GSTIN. There are 2 ways to handle these cases.
- Provide you GSTIN to them, for example Digitalocean is asking for GSTIN and you pay the tax under RCM. You will get input tax credit in this way.
- Another is do not provide GSTIN, they will charge GST and pay to government but I doubt if you will get input credit of this.
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chatCommentsThank you sir. - Mahadev Prasad