(urgent help) short filed gst - how to correct it ?

pr br (319 Points)

12 September 2018  

I am in consultant business and myself have been filing my GSTR1 and 3B since GST launched in India.

 

in FY 2017-18 , I filed GST for Nov 2017 as follows

taxable amount: 100000
gst :18%
invoice total : 118000
gst paid : 18000

 

But the client has filed different amount as follows

taxable amount : 103000
gst : 18%
invoice should be : 103000+18540

so difference = 540

they want me to adjust this amount for FY 2017-18 .  sept 15th is the last date of last year annual filling for them.

can i raise an invoice of difference amount (540) this month, anyone please help me , I can take your paid service as well . its urgent .