precautions should I take before filing GST to avoid mismatches, please follow below steps :
Step 1: Verify that the tax rates and values match the invoices and are correctly categorized.
Step 2: Enter details of your purchase transactions, such as invoices, debit notes, and credit notes.
Step 3: Reconcile your data with your financial records to ensure all sales and purchases
Step 4: Generate GST returns and summary reportsincludes GSTR-1 (for outward supplies), GSTR-2 (for inward supplies), and GSTR-3 (monthly summary).