Rizu provides outsourced accounting and bookkeeping services for Indian businesses. You get a dedicated chartered accountant, real-time financial dashboard, GST/TDS compliance, bank reconciliation, Tally sync, and payroll — all handled for you.

How much does Rizu cost?

Rizu starts at ₹8,499/month for the Starter plan. The Growth plan is ₹14,999/month with payroll and TDS included. Enterprise pricing is custom.

Is Rizu a software or a service?

Rizu is a full accounting service — not just software. You get real accountants handling your books, powered by a modern tech platform for real-time visibility.

Do I need to use Tally?

No. Rizu works independently. If you already use Tally, we can sync with it automatically. If not, we handle everything through our own platform.

How does GST filing work with Rizu?

Your dedicated accountant prepares GSTR-1, GSTR-3B, and annual returns. You review and approve via the dashboard. We file on time, every time.

Which GST returns does a startup need to file?

Most regular taxpayers file GSTR-1 (outward supplies) and GSTR-3B (summary + tax payment) either monthly or quarterly under QRMP, plus the annual GSTR-9 once turnover crosses the threshold. Composition dealers file CMP-08 and GSTR-4 instead.

What are the GST filing due dates?

GSTR-1 is due the 11th of the next month (monthly) or 13th after quarter-end (QRMP). GSTR-3B is due the 20th monthly, or 22nd/24th for QRMP depending on your state. Annual GSTR-9 is due 31 December of the next financial year.

What is the penalty for late GST filing?

Late fee is ₹50/day (₹20/day for nil returns), capped by return, plus 18% annual interest on unpaid tax. Persistent non-filing can block your e-way bills and GSTR-1, freezing your ability to invoice.

Can I file GST myself or should I outsource it?

You can file yourself on the GST portal, but reconciling GSTR-2B for input credit and hitting every deadline is where most startups slip. An outsourced accountant prepares, reconciles, and files on time — Rizu tracks 80+ compliance dates so nothing is missed.

Blog · 7 min read

GST Filing Guide for Indian Startups (2026)

Which GST returns your startup must file, the monthly and annual deadlines, what happens if you miss them, and how to keep filings on time without doing it yourself.

Short answer: A regular-scheme startup files GSTR-1 and GSTR-3B every month or quarter, and GSTR-9 once a year. Miss a deadline and you pay ₹50/day plus 18% annual interest — and repeated defaults can block your e-way bills and invoicing. The fix is a reconciliation-first process and a tracked calendar.

GST is not hard once, it is hard every month, forever. For a young company that is the trap: the first filing goes fine, then a busy quarter arrives and a deadline slips. Here is the map.

The returns you actually file

GSTR-1 — details of your outward supplies (sales). Feeds your customers' input credit, so accuracy matters.
GSTR-3B — the summary return where you compute output tax, claim input tax credit (ITC), and pay.
GSTR-9 — the annual reconciliation, once your turnover crosses the threshold.
CMP-08 / GSTR-4 — only if you are registered under the composition scheme.

The deadlines

GSTR-1: 11th of the next month (monthly), or 13th after quarter-end under QRMP.
GSTR-3B: 20th of the next month (monthly), or 22nd/24th for QRMP depending on your state.
GSTR-9: 31 December of the following financial year.

If your turnover is under ₹5 crore, the QRMP scheme lets you file quarterly while paying tax monthly — fewer filings, same cash discipline.

Where startups lose money

Two mistakes cost the most. First, missing ITC: if you do not reconcile your purchases against GSTR-2B, you either lose credit you were owed or claim credit you cannot support. Second, late fees and interest that compound quietly — ₹50/day feels small until three returns are late across two GSTINs. Worse, persistent non-filing can get your GSTR-1 and e-way bills blocked, which stops you invoicing at all.

Do it yourself, or hand it off

The GST portal is free and you can file yourself. The real work is upstream: clean books, purchase-vs-2B reconciliation for correct ITC, and never missing a date. That is exactly what an outsourced accountant does. With Rizu, your dedicated accountant prepares GSTR-1 and 3B from your books, reconciles ITC, and files on time — and the platform tracks 80+ compliance deadlines so you are reminded before, not fined after. You review and approve from a dashboard; we file.

The monthly grind gets off your plate: your accountant prepares and files, and you just review and approve from the dashboard.

Frequently asked questions

Which GST returns does a startup need to file?: Most regular taxpayers file GSTR-1 (outward supplies) and GSTR-3B (summary + tax payment) either monthly or quarterly under QRMP, plus the annual GSTR-9 once turnover crosses the threshold. Composition dealers file CMP-08 and GSTR-4 instead.
What are the GST filing due dates?: GSTR-1 is due the 11th of the next month (monthly) or 13th after quarter-end (QRMP). GSTR-3B is due the 20th monthly, or 22nd/24th for QRMP depending on your state. Annual GSTR-9 is due 31 December of the next financial year.
What is the penalty for late GST filing?: Late fee is ₹50/day (₹20/day for nil returns), capped by return, plus 18% annual interest on unpaid tax. Persistent non-filing can block your e-way bills and GSTR-1, freezing your ability to invoice.
Can I file GST myself or should I outsource it?: You can file yourself on the GST portal, but reconciling GSTR-2B for input credit and hitting every deadline is where most startups slip. An outsourced accountant prepares, reconciles, and files on time — Rizu tracks 80+ compliance dates so nothing is missed.

Hand off your books to Rizu

A dedicated accountant, GST filed on time, and a real-time dashboard — from ₹8,499/month.

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