Late fee for filing gstr 3b if i have only purchase (itc) entry & no sale

As per Sec 47 of GGST Act and SGST Act Late fees on GSTR-3B is 50 Per day in case their is output liability 25 CGST 25 SGST but for Nil Output liability it is 20 Per day 10 CGST and 10 SGST

That means in this case I have to pay Rs. 20 (10 CGST & 10 SGST) per day...

m i right...

Yes You are right deposit in CGST and SGST column

But i have only IGST Purchase... No CGST & SGST..

Then Late fee will charged or not...

Even with no sales, GSTR-3B filing is mandatory every month for all GST-registered businesses. Good news: when your outward tax liability is zero (nil output), the late fee is only Rs. 20 per day per Act, that is Rs. 40 total per day, capped at Rs. 500 per Act (Rs. 1,000 maximum total). Do not skip the filing even if you only have ITC to claim: you need to report your input tax credit in Table 4 of GSTR-3B to keep your ITC alive. If your business consistently has low or no turnover, consider applying for the QRMP (Quarterly Return Monthly Payment) scheme, which reduces filing frequency to quarterly.