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Taxation & Accounting · GST Act, 2017

Monthly GST Return Filing

Never miss a GSTR 1 and GSTR 3B filing deadline again. Our GST Return Filing Services reconcile your sales and purchase data every month before submission, so your online GST filing agency relationship actually reduces your workload.

Zero missed deadlines GSTR-1 & 3B reconciliation included Fixed monthly retainer Dedicated GST Return Filing Services team Predictable monthly GST Return Filing Services schedule GST Return Filing Services, never missed

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Fixed fee. No hidden charges.

GST Return Filing Services cover the recurring monthly or quarterly submission of GSTR-1 (outward supplies) and GSTR-3B (summary return with tax payment) to the GST department, a legal obligation for every GST-registered business regardless of whether any sales occurred in a given period.

Once a business completes GST registration, GST Return Filing Services stop being optional — GSTR-1 and GSTR-3B must be filed every single month (or quarter, under QRMP), even in months with zero sales, or late fees and interest start accumulating automatically. Most founders underestimate how much internal time this recurring filing consumes until they are three months in and realize they need an online GST filing agency rather than trying to keep up themselves.

What separates a good online GST filing agency from a bad one is reconciliation discipline, not just form submission. GSTR 1 and GSTR 3B filing errors — a sales invoice recorded in the wrong period, an input tax credit claimed without a matching GSTR-2B entry — do not usually cause immediate problems, but they compound into a mismatch that draws a notice months later. bizOversal reconciles your books against your GST portal data every single month before filing, specifically to prevent that slow-building mismatch.

Our GST Return Filing Services are priced as a fixed monthly retainer, not a per-invoice or per-transaction fee, because we want founders to actually use the service rather than ration their invoice volume to save money. Whether your business issues five invoices a month or five hundred, GSTR 1 and GSTR 3B filing happens on the same predictable schedule, with a WhatsApp confirmation the moment each return is submitted.

The workload behind GST Return Filing Services scales with invoice volume and how clean your bookkeeping already is, not with your revenue directly. A business issuing thirty clean, correctly-coded invoices a month is often faster to handle under GST Return Filing Services than a business issuing ten invoices with inconsistent GST rates or missing customer GSTINs. We assess this during onboarding so your monthly retainer reflects actual reconciliation effort rather than a flat guess based on turnover alone.

GST Return Filing Services from bizOversal come with a WhatsApp confirmation the moment each month's return is submitted.

Is this right for you?

Who needs Monthly GST Return Filing

GST-registered businesses that want GSTR 1 and GSTR 3B filing handled on a fixed monthly retainer instead of scrambling before each deadline
Founders currently filing returns themselves who have received a mismatch notice or missed a due date
E-commerce sellers with high invoice volume who need an online GST filing agency to keep reconciliation accurate
Businesses switching accountants who want GST Return Filing Services bundled with bookkeeping under one team
Founders who want GST Return Filing Services handled by someone who reconciles the numbers, not just uploads a spreadsheet to the portal
How it works

Your monthly gst return filing roadmap

1

Data Collection

Sales and purchase invoices are collected from your accounting system each month as the first step of our GST Return Filing Services.

1st–5th of month
2

Reconciliation

We reconcile your data against GSTR-2B and prior filings before submitting GSTR 1 and GSTR 3B filing, catching mismatches before the department does.

6th–15th of month
3

Return Filing

GSTR-1 and GSTR-3B are filed on the GST portal well within statutory deadlines through our online GST filing agency workflow.

By the 20th
4

Confirmation & Records

You receive a WhatsApp confirmation and filed-return copies for your records once GST Return Filing Services are complete for the month.

Same day
What you actually receive

Deliverables checklist

We separate what the government issues from what our team drafts and delivers.

Government filings & certificates
Filed GSTR-1 acknowledgement each month
Filed GSTR-3B acknowledgement with tax payment challan
GST portal filing history maintained through our online GST filing agency service
bizOversal drafted deliverables
Monthly sales/purchase reconciliation working papers as part of GST Return Filing Services
Input tax credit (GSTR-2B) matching report
Late-fee and interest risk alerts before a GSTR 1 and GSTR 3B filing deadline
Annual GST return filing readiness summary
Avoid these pitfalls

Common mistakes with Monthly GST Return Filing

Filing GSTR-1 and GSTR-3B with mismatched sales figures between the two returns, which is one of the most common triggers for a GST department notice
Missing a nil return filing in a month with zero sales, assuming no filing is required — GSTR 1 and GSTR 3B filing is mandatory even with no transactions
Claiming input tax credit that does not appear in GSTR-2B, which invites a reconciliation mismatch and potential reversal with interest
Switching between an online GST filing agency and in-house filing mid-year without a clean handover, causing duplicate or skipped periods
Switching GST Return Filing Services providers mid-year without a clean handover, risking a gap in filed periods
No surprises

Transparent pricing matrix

Prices in INR, exclusive of 18% GST.
ComponentProfessional FeeGovt. / Statutory Charge
GSTR-1 & GSTR-3B filing (up to 50 invoices/month) ₹1,999 ₹0
Reconciliation & ITC matching Included ₹0
Total (monthly retainer, standard volume) ₹1,999 ₹0
Compare your options

Monthly vs. Quarterly (QRMP) GST Return Filing Services

Feature Monthly Scheme QRMP Scheme
Eligibility Any turnover Turnover up to ₹5 crore
GSTR-3B frequency Every month Every quarter
Cash flow impact Regular monthly outflow Deferred to quarter-end
Best suited for High invoice volume Small businesses, steady sales
Bundle your total cost

Startup Cost Estimator

Frequently asked

Monthly GST Return Filing — FAQs

Late fees accrue daily (₹50 per day for GSTR-3B, or ₹20 for nil returns), plus 18% annual interest on any unpaid tax liability. bizOversal's GST Return Filing Services are built specifically to prevent this by tracking every deadline on a fixed monthly schedule.
Yes — a nil GSTR 1 and GSTR 3B filing is still mandatory even when no sales occurred. Skipping it because 'there was nothing to report' is one of the most common and entirely avoidable compliance mistakes we see when businesses switch to our online GST filing agency service.
In most cases, yes. bizOversal reviews prior filings, identifies the specific mismatch between GSTR-1, GSTR-3B and GSTR-2B, and files the appropriate amendment or adjustment in a subsequent period as part of our GST Return Filing Services.
Our standard retainer starts at ₹1,999 per month for GSTR 1 and GSTR 3B filing covering up to 50 invoices, with reconciliation and input tax credit matching included. Higher invoice volumes are quoted separately based on actual transaction count.
Not by default, but most bizOversal clients bundle GST Return Filing Services with our Accounting & Bookkeeping service, since accurate books make monthly GSTR 1 and GSTR 3B filing significantly faster and less error-prone.
QRMP lets businesses with turnover up to ₹5 crore file GSTR-3B quarterly instead of monthly, while still paying tax monthly. Whether it suits you depends on cash flow and invoice volume — our GST Return Filing Services team advises on this during onboarding.
Filing whatever numbers a client provides is how mismatches between GSTR-1, GSTR-3B and GSTR-2B go unnoticed until a department notice arrives. Our GST Return Filing Services always reconcile first, because catching an error before filing is far cheaper than fixing one after.

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