Pre GST advance for service and post GST service provided - invoicing thereof

Vivek Agrawal (GST Practitioner) (181 Points)

25 November 2022  

My firm received advance for service contract in pre GST era in 2016 with service tax. Service tax was then remitted. 

Now in 2022, my firm rendered service and completed contract.

Can my firm issue GST invoice deducting advance and service tax paid from the value of service and GST?? Because my firm had already remitted service tax in pre-GST era.

please reply.