Hello,
1. Since you have already registered under GST, you would be required to make all compliances under GST and pay the due GST.
2. Cess under GST is applicable to specific goods/services and not applicable to your case. Cess under Income Tax would be added to your tax liability.
3. A GST Invoice must have the following details-
- Invoice number and date
- Customer name
- Shipping and billing address
- Customer and taxpayer’s GSTIN (if registered)**
- Place of supply
-
HSN code/ SAC code - Item details i.e. description, quantity (number), unit (meter, kg etc.), total value
- Taxable value and discounts
-
Rate and amount of taxes i.e. CGST/ SGST/ IGST - Whether GST is payable on reverse charge basis
- Signature of the supplier
You can find the sample invoice format online.
I hope this answer satisfies your requirements.
Regards,
CA Hunny Badlani