Taxes can be paid online or in person. A challan must be generated before payment. It can be generated either during the GST return filing process or after logging into its portal.
You can make a payment either with or without logging into the portal. You are permitted to make payments from a limited number of banks. You must choose a bank and submit payment. The electronic cash ledger is automatically updated. If you generated a challan without logging in, payment is due right away.