GST Helpline Number and How to Raise a Complaint

When the GST portal throws an error the night before a due date, the first thing most people search for is a GST help number. There is one, but it is not a general customer care line for GST. It is the helpdesk of GSTN, the company that runs the portal, and it deals with portal and technical problems. This guide gives the GST helpline number, explains how to raise a complaint online so it is tracked, what to put in the ticket so it gets resolved on the first pass, and which helpdesk to use for e-way bills, e-invoices and questions about the law itself.

Which GST helpdesk you actually need

GST in India is run by several bodies, and each one answers a different kind of question. Calling the wrong one is the most common reason people feel they "got no help". Start by sorting your problem:

The GST help number: GSTN helpdesk

The GSTN helpdesk is reached on the toll-free number 1800-103-4786. GSTN has published this number for years, but contact numbers and service hours can change, so check the Help and Taxpayer Facilities section of gst.gov.in for the current number and timings before you call. Expect long waits close to return due dates, when call volumes peak.

The helpdesk can help with:

• login problems, forgotten usernames and password resets, and OTPs that do not arrive;
• registration and amendment applications stuck at a stage, or showing an error on submission;
• returns that will not save, validate or file, and offline utility or JSON upload errors;
• DSC and EVC signing failures;
• ledger balances that do not match what you paid or filed;
• generally, anything where the portal is not behaving the way the user manuals say it should.

What it will not do is tell you how much tax you owe, whether a credit is allowed, or how to reply to a notice. Agents there support the system, not your tax position. If the whole portal seems to be down, read GST portal not working first; an outage is fixed centrally and a ticket will not speed it up, though a ticket with a timestamp is useful evidence if a deadline is missed because of it.

Raising a complaint on the self-service portal

A phone call leaves no record you can point to later. A ticket does. The GST grievance redressal portal at selfservice.gstsystem.in is the self-service route for complaints about the GST system, and it is also linked from the Help and Taxpayer Facilities section of the main portal. The flow is:

1. Open selfservice.gstsystem.in and choose the option to raise a new ticket or grievance.
2. Select whether you are a registered taxpayer or not, and enter your GSTIN or other identifier when asked.
3. Pick the category and sub-category closest to your problem, such as registration, returns, payment or login. The right category routes the ticket to the right team.
4. Describe the problem and attach a screenshot or document.
5. Submit and note the ticket number. You can track the status with it on the same portal, and quote it if you call the helpdesk.

Before raising a ticket, it is worth searching the FAQs and user manuals on the same site. Many errors have a known cause, for example a return that cannot be filed because an earlier period is still pending, and the answer is already written down.

For money that left your bank account but never reached your cash ledger, there is a separate formal route: the grievance against payment in form PMT-07, filed from the Payments section of the GST portal. Use that before or alongside a general ticket. See GST challan payment for how payments and CINs work.

What to include in a ticket

Most tickets bounce back because the person handling them cannot reproduce or locate the problem. Give them everything in the first message:

• GSTIN, or the provisional ID or TRN if you are not yet registered.
• ARN or reference number of the application, return or refund involved. Our guide to ARN status shows where to find it.
• Form and tax period, for example GSTR-3B for August 2026.
• The exact error message, copied word for word, including any error code.
• A screenshot showing the error and the page it appeared on, with the date and time visible if possible.
• Browser and device, such as Chrome on Windows, and whether you tried another browser or cleared the cache.
• What you already tried, so you are not told to do it again.
• For payment problems: the CPIN, CIN if any, bank, amount and date of debit.

E-way bill and e-invoice helpdesks

The e-way bill system and the e-invoice registration portals (IRPs) run separately from the main GST portal, so their problems usually go to their own support teams.

• E-way bills: the e-way bill portal, ewaybillgst.gov.in, lists its own helpdesk contact details. Use it for login and two-factor problems, generation errors, Part B updates and validity extensions. If e-way bill generation is blocked because GSTR-3B returns are pending, the fix is to file the returns rather than call anyone; see e-way bill unblocking.
• E-invoices: each IRP has its own helpdesk listed on its portal. Use it for IRN generation failures, schema validation errors and API access. Our e-invoice portal login guide covers the portals.

When a problem starts on the GST portal and shows up on another system, such as a GSTIN status that stops an e-way bill or e-invoice from being generated, the GSTN helpdesk is the right place.

CBIC for law and policy questions

GSTN runs the technology; it does not make or interpret the law. Questions on rates, exemptions, input tax credit, place of supply or what a provision means sit with the Central Board of Indirect Taxes and Customs (CBIC) for central tax and with the state commercial tax department for state tax. CBIC publishes its helpdesk contact details on cbic-gst.gov.in, along with the Acts, rules, notifications and circulars. Check those pages for the current number rather than relying on a number copied from an old article.

A helpdesk answer on a legal question is general guidance, not a ruling. For a binding answer on a question specific to your business, the route is an advance ruling or a tax professional.

When to go to your jurisdictional officer

Some things only the officer assigned to your GSTIN can act on: a pending registration verification, a notice, a refund under processing, suspension or cancellation of registration, and revocation. Neither the helpdesk nor a ticket can move these. Your registration details show which centre and state jurisdiction you fall under; how to find your GST jurisdiction explains where to look and what ward, range and division mean. Reply to notices on the portal in the form asked for, and keep a copy of what you file.

If the ticket goes nowhere

If a ticket is closed without a fix, raise a fresh one that quotes the earlier ticket number and says what is still broken. Keep the language factual and attach the same evidence. For problems that are not technical, such as a delay by a tax office, the state and central tax administrations run grievance mechanisms of their own; your jurisdictional office or the department's website can point you to them. If you are a consumer who was charged GST on a bill you think is fake, see how to report a fake GST invoice.

Not every GST question needs a helpdesk

A lot of calls are really one question: is this GSTIN real and active? You do not need a helpdesk for that. The public search on the GST portal answers it one number at a time, and if you check suppliers or customers in volume, GSTIN verification through gstinapi.com returns the status, legal name and filing record from your own software. If you are integrating the API and hit an error, the GST API error codes guide lists each code and its fix.

Frequently asked questions