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GST Procedure in India

(Complete Guide)

1. Introduction

The Goods and Services Tax (GST) system in India is designed to ensure efficient tax collection, reduce corruption, simplify inter-state movement of goods, and improve overall compliance.

Under GST law, a self-assessment mechanism is followed, allowing taxpayers to calculate and pay their taxes independently. The law also provides detailed provisions for notices, demand, and recovery in cases of non-payment, short payment, or non-filing of returns.

2. What is GST Return?

A GST return is a document filed by a registered taxpayer to report:

Sales (outward supplies)
Purchases (inward supplies)
Output tax liability
Input Tax Credit (ITC)

It is a critical compliance requirement that ensures:

✔ Accurate tax reporting
✔ Proper ITC claims
✔ Transparency in taxation

Common return types include:

GSTR-1 – Sales details
GSTR-3B – Summary return
GSTR-9 – Annual return

GST Return Forms with Due Dates

Under the CGST Act 2017, specific return forms are prescribed, each with defined filing frequencies and deadlines.

S.No	Form No.	Purpose	Frequency	Due Date
1	GSTR-1	Details of outward supplies	Monthly / Quarterly	11th of next month / 13th after quarter
2	GSTR-3B	Monthly summary return (tax liability & credit claim)	Monthly / Quarterly (QRMP)	20th next month / 22nd or 24th for QRMP
3	GSTR-4	Annual return for composition taxpayers	Annually	30th of month after FY
4	CMP-08	Self-assessed statement-cum-payment for composition dealers	Quarterly	18th next month
5	GSTR-5	Return for non-resident taxable persons	Monthly	20th next month
6	GSTR-5A	Return for OIDAR services by persons outside India	Monthly	20th next month
7	GSTR-6	Return for Input Service Distributors (ISD)	Monthly	13th next month
8	GSTR-7	TDS return under GST	Monthly	10th next month
9	GSTR-8	TCS return by e-commerce operators	Monthly	10th next month
10	GSTR-9	Annual return for regular taxpayers	Annually	31st Dec of next FY
11	GSTR-9C	Reconciliation statement for audited taxpayers (turnover > ₹2 Cr)	Annually	31st Dec of next FY
12	GSTR-11	Return by UIN holders claiming refund	Monthly	28th of next month

3. GST Return Filing System

Under GST rules:

Around 22 types of returns are prescribed
11 returns are currently active
Some are suspended or view-only

👉 Filing returns on time is mandatory—even NIL returns must be filed

4. GST Filing Procedure (Step-by-Step)

Step 1: Maintain Proper Records

Keep accurate records of:

Sales invoices
Purchase invoices
Debit/credit notes

Step 2: Select Applicable GST Return

Depending on business type:

GSTR-1 → Sales
GSTR-3B → Summary
GSTR-4 → Composition scheme
GSTR-9 → Annual return

Step 3: Upload Invoice Details

Enter sales data in GSTR-1
Purchase data auto-reflects in GSTR-2B

Step 4: Reconcile Data

Match purchases with GSTR-2B
Verify ITC eligibility
Avoid mismatches

Step 5: Calculate Tax Liability

Formula:
Net GST Payable = Output Tax – Input Tax Credit (ITC)

Step 6: Pay GST

Payment modes:

Electronic cash ledger
ITC adjustment

Step 7: File Return

Submit return on GST portal
Verify using:
- DSC (for companies/LLPs)
- EVC (OTP-based)

Step 8: Receive ARN

Acknowledgment generated
Confirmation via SMS/email

5. GST Audit

GST audit involves examination of records to ensure compliance.

Types of Audit

1. Audit by Taxpayer

Earlier mandatory for turnover > ₹2 crore
Now replaced with self-certified GSTR-9C

2. Audit by GST Authorities

General Audit: Conducted by officers
Special Audit: Conducted by CA/CMA in complex cases

6. Assessment under GST

Assessment means determination of tax liability.

Types of Assessment

Self-Assessment: Taxpayer calculates tax themselves
Provisional Assessment: Used when tax rate/value uncertain
Scrutiny Assessment: Officer checks returns
Summary Assessment: Done to protect revenue quickly
Best Judgement Assessment: For non-filers or unregistered persons

GST Returns Forms - At a Glance

Comprehensive overview of GST return types, frequencies, and filing requirements.

Category	GST Return Type	Frequency	Due Date	Details to be Furnished
Regular Dealer	Form GSTR-1	Monthly	10th of succeeding month	Outward supplies of taxable goods/services
	Form GSTR-2A	Monthly	11th of succeeding month	Auto-populated inward supplies from supplier GSTR-1
	Form GSTR-2	Monthly	15th of succeeding month	Inward supplies for ITC claims
	Form GSTR-1A	Monthly	17th of succeeding month	Corrections by recipient in GSTR-2 made available to supplier
	Form GSTR-3	Monthly	20th of succeeding month	Finalization of outward/inward supplies and tax payment
	Form GST MIS-1	Monthly	—	Communication of ITC acceptance or discrepancy
	Form GSTR-3A	—	15 Days from Default	Notice to person failing to furnish returns
	Form GSTR-9	Annually	31st Dec of next fiscal	Annual Return: ITC availed and GST paid
Composite Tax Payer	Form GSTR-4A	Quarterly	—	Auto-populated inward supplies from supplier
	Form GSTR-4	Quarterly	18th of succeeding month	Outward supplies and payment of tax
	Form GSTR-9A	Annual	31st Dec of next fiscal	Consolidated quarterly returns and payment details
Foreign Non-Resident	Form GSTR-5	Monthly	20th next month (or 7 days post-registration expiry)	Imports, outward supplies, ITC, and stock
ISD	Form GSTR-6A	Monthly	11th of succeeding month	Inward supplies from GSTR-1
ISD	Form GSTR-6	Monthly	13th of succeeding month	Details of input credit distributed
Tax Deductor	Form GSTR-7	Monthly	10th of succeeding month	Details of TDS deducted
Tax Deductor	Form GSTR-7A	Monthly	—	TDS Certificate for download
E-commerce	Form GSTR-8	Monthly	10th of succeeding month	Supplies through operator and tax collected
E-commerce	Form GSTR-9B	Annually	31st Dec of next fiscal	Annual statement of outward supplies and returns
Turnover > ₹2 Cr	Form GSTR-9C	Annually	31st Dec of next fiscal	Certified reconciliation statement and audited accounts
Final Return	Form GSTR-10	Once	Within 3 months of cancellation	Details of inputs, capital goods, and tax payable
Specialised Agencies (UIN)	Form GSTR-11	Monthly	28th of succeeding month	Inward supplies for UIN holders

7. Demand and Recovery

Applicable when: Tax unpaid or short paid, Wrong ITC claimed, Incorrect refund claimed, Tax collected but not deposited, or Wrong GST type paid.

👉 Officer issues show cause notice + demand

If unpaid: Recovery proceedings begin.

8. Advance Ruling under GST

Advance ruling allows taxpayers to seek clarification before transactions and reduce litigation. It is a written decision by GST authority on tax matters.

10. Interest and Late Fees

Interest

18% per annum on unpaid tax

Late Fees

₹100/day (CGST) + ₹100/day (SGST)
Max ₹5,000
NIL return: ₹20/day

Penalties

Up to 0.5% of turnover
Risk of registration suspension

11. Who Should File GST Returns?

Entities required to file: Individuals, HUFs, Companies & LLPs, Trusts, Societies, and Local authorities.

👉 Any business engaged in economic activity must comply

12. GST Filing Frequency

Turnover up to ₹5 Crore: QRMP Scheme (9 returns/year)
Turnover above ₹5 Crore: Monthly filing (~25 returns/year)

13. Online GST Filing Process

Steps:

Register and obtain GSTIN
Login to GST portal
Go to Returns Dashboard
Select return type
Prepare return
Validate & submit
Pay tax
Generate ARN
Download return

14. Importance of GST Compliance

Avoid penalties
Ensure smooth ITC claims
Maintain credibility
Prevent legal action

15. Practical Expert Insights

Always reconcile GSTR-2B before filing
File NIL returns on time
Maintain digital records
Automate compliance using software
Avoid mismatch between GSTR-1 & 3B

16. Common Mistakes to Avoid

Late filing
Wrong ITC claims
Incorrect invoice reporting
Not filing NIL returns
Ignoring notices

17. Conclusion

The GST procedure in India is structured to ensure transparency, self-compliance, and efficient tax collection. Through audits, assessments, and recovery provisions, the system ensures proper enforcement while simplifying compliance for businesses.

👉 Timely filing and accurate reporting are essential to avoid penalties and maintain smooth business operations.

18. FAQs

1.How do I correct mistakes in a GST return after it has been filed?

You can correct most mistakes in your next return period. Amend invoice details, tax amounts, or outward supplies in the GSTR-1 of the following month and the corrections will auto-reflect in GSTR-3B.

2.What documents should I keep ready before filing my GST returns?

Sales invoices *Purchase invoices *Debit/credit notes *E-way bills (if applicable) *Input tax credit records *Bank statements/reconciliation *Stock summary (if required)

3. Can I revise a GST return if I notice errors after submitting it?

GST returns cannot be “revised” once filed, but errors can be corrected in future returns through amendments

4.What should new GST registrants know before filing their first GST return?

Ensure all invoices follow GST format *Report sales and purchases accurately *Claim only eligible ITC *File returns on time to avoid penalties *Keep all documents organised for reconciliation *Understand your filing frequency (monthly/quarterly under QRMP)

4.Do we need to file GST returns every month?

The GSTR-1 is required to be filed on a monthly basis unless you have opted for the QRMP scheme. The GSTR-1 must be filed by every single normal registered taxable person. GSTR-1 doesn’t need to be filed by the input service distributor, the composition taxpayer, the persons liable to deduct tax.

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