A company with multiple branches having a single GSTIN within the state can maintain data, and file returns with ease through Tally.ERP 9.
For this, you need to
● Synchronise all the companies’ data to consolidate all the transactions to a single master company (to merge all the branch data).
● File GST returns from the consolidated data in master company.
Note: If you have multiple branches in different states having different GSTINs for all the branches, you need to file GST returns branch-wise using different companies for each branch. You can create a group company for viewing the consolidated data across all branches for filing income-tax returns.