The govt. has made changes in GST system with effect from From 1st January 2022:
1. The GSTR 1 cannot be filed, if the previous period GSTR 3B is not filed.
2. The Tax Liability declared in GSTR 1 should be paid in GSTR 3B.
3. The difference between the tax liability of GSTR 1 and GSTR 3B is considered as shortage in self-assessed tax. The GST officer can collect such an amount directly by attaching the bank account, if required.
4. If your supplier, does not furnish GSTR 1 on time(i.e. before 11th of month ) , you cannot avail the credit of ITC in GSTR 3B.
5. If you do not file the GSTR 1 on time, your customer cannot get the ITC.
6. If by mistake, you have declared more tax lability in your GSTR 1, you have no choice, but to pay this extra liability.
Hence, the only option is the streamline the system of maintaining of Accounts and filing of GSTR returns perfectly. Proper care should be taken to ensure correct Accounting Entries are done in the accounting system. There should be a proper review mechanism for cross checking the information. The GSTR return should be flow ideally from the accounting system (after proper review).