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The gap between a smooth entry into India and a costly one is often about little things coming together at the right time. For instance, how well the tax structure was understood before operations began will invariably have a huge impact down the road. Goods and services tax GST in India sits at the centre of that structure, governing everything from how goods are priced to how imports are taxed and whether a business can recover tax already paid up the supply chain.
The system is not small: gross GST collections reached approximately USD 257 billion (Rs. 22.08 lakh crore) in FY 2024-25, and the registered taxpayer base crossed 1.5 crore by the end of 2025. These figures are a reasonable measure of how seriously India administers its indirect tax framework.
Where foreign businesses tend to go wrong is in treating GST as a post-incorporation task. The legal structure chosen for the Indian presence, the nature of the supply, the States involved, the invoice format, the return calendar: none of these are independent decisions.
Each one connects back to GST, and getting any one of them wrong early creates costs that compound over time. This blog covers the essentials: registration triggers, rate classification, filing obligations, and the ideal GST services for foreign business.
India’s GST is not a single tax. It operates through three components that apply depending on whether a supply crosses State lines.
CGST and SGST apply together on supplies made within a single State, split between the Central Government and the State Government respectively. IGST applies to inter-state supplies, imports, and most cross-border service transactions, and is collected by the Centre.
The framework is destination-based, meaning the tax accrues to the State where consumption occurs. Understanding which tax applies to which transaction is not just a technical requirement. It affects working capital, pricing, and the design of inter-company arrangements.
India’s GST registration rules are structured around the nature of the business, the State it operates in, and how the supply reaches the customer, whether through a physical channel or a digital one. A business that enters India without first establishing which registration category it falls under is essentially building on an uncertain foundation, and that uncertainty has a way of surfacing at the worst possible time.
The Central Board of Indirect Taxes and Customs (CBIC) updated registration thresholds in 2019, and they remain the reference point today.
| Category | Goods Threshold | Services Threshold |
|---|---|---|
| Normal-category States | Rs. 40 lakhs | Rs. 20 lakhs |
| Specified special-category States | Rs. 20 lakhs | Rs. 10 lakhs |
*Prices are indicative. Check government portal for updated cost.
These are aggregate annual turnover limits. Once crossed, registration is mandatory and GST must be charged on all taxable supplies. Voluntary registration is also available for businesses that remain below the threshold but want to claim input tax credit, which is a commercially sensible choice for many.
The turnover thresholds that give domestic businesses some room to manoeuvre simply do not apply to a non-resident taxable person. If a foreign business intends to make taxable supplies in India, registration must be in place before those supplies begin. That alone changes the planning timeline considerably.
Form GST REG-09 must be filed electronically at least five days before commencing business. Advance tax covering the estimated GST liability for the registration period is deposited alongside the application. An authorised signatory based in India with a valid PAN is a mandatory requirement, so that appointment needs to be arranged in advance rather than treated as an afterthought. The registration remains valid for the period specified in the application or 90 days, whichever comes first. One extension of up to 90 days can be requested, provided the application goes in before the existing registration expires.
The timeline is tighter than most foreign businesses expect, and the consequences of misjudging it are not minor. A delayed registration means a delayed start to supply. Starting supply without registration creates a compliance problem that is difficult and expensive to clean up. Getting the application filed on time, with all requirements in place, is the only sensible path.
According to CBIC’s official FAQ, every electronic commerce operator must register regardless of the value of supply. Suppliers of goods through e-commerce platforms are similarly required to register irrespective of their turnover. For a foreign business entering India through a platform or marketplace model, GST registration is not optional at any scale. This is a point that often catches businesses off guard when they assume that a low initial transaction volume buys them time.
India’s GST rate schedule operates across five principal slabs: nil, 5%, 12%, 18%, and 28%. Classification is determined by the Harmonised System of Nomenclature (HSN) code for goods or the Services Accounting Code (SAC) for services, not by the commercial name a business uses for its product.
The official rate schedules illustrate just how specific this gets. Tea attracts 5%. Wet dates attract 12%. Pet food sits at 18%. Nail polish is taxed at 28%. Each of these reflects a specific tariff heading, composition, or policy decision, but the practical implication is that assuming a rate based on a broad product category is a genuine risk.
| Product / Category | Applicable GST Rate | Classification Basis (HSN/SAC Insight) | Key Risk if Misclassified |
|---|---|---|---|
| Tea | 5% | Specific HSN classification for essential goods | Under-pricing tax liability if assumed lower |
| Wet Dates | 12% | Processed/agricultural classification nuance | Margin erosion due to incorrect rate assumption |
| Pet Food | 18% | Treated as non-essential packaged goods | Incorrect pricing strategy |
| Nail Polish | 28% | Classified under cosmetics/luxury items | Significant tax underpayment exposure |
| Mid-size & Large Cars | 40% | Post-2025 GST Council decision (incl. cess impact) | Major landed cost miscalculation |
| Tobacco-related Products | 40% | Sin goods category with higher GST + cess | Regulatory scrutiny and penalty risk |
Following GST Council decisions in 2025, government notifications confirmed that mid-size and large cars and selected tobacco-related products now attract 40% GST. Most rate changes for other goods and services took effect from 22 September 2025.
For a foreign business, the consequence of misclassification can be significant. Rate planning should be done product by product, verified against the notified schedules, and revisited any time there is a reformulation, repackaging, or change in the tariff heading under which goods are classified. Transfer pricing, landed cost calculations, and retail pricing models built on an incorrect rate assumption will all need correction, and that correction rarely comes at a convenient time.
Registered businesses in India file returns on a cycle that is more demanding than many international markets. The principal obligations are as follows.
| Return Type | Purpose | Filing Frequency | Due Date | Key Dependency / Compliance Risk |
|---|---|---|---|---|
| GSTR-1 | Reporting of outward supplies | Monthly / Quarterly | 11th (monthly) / 13th (quarterly) | Incorrect or delayed reporting affects ITC for buyers |
| GSTR-3B | Summary return & tax payment | Monthly / Quarterly | 20th (monthly) / 22nd or 24th (quarterly) | Late filing leads to interest, penalties, cash flow impact |
| GSTR-9 | Annual return (consolidation) | Annual | 31 December (following financial year) | Cannot file without completing all GSTR-1 & GSTR-3B |
GSTR-1 captures outward supplies. Monthly filers submit by the 11th of the following month. Quarterly filers submit by the 13th of the month following the quarter.
GSTR-3B is the summary return through which tax liability is discharged. Monthly filers are due by the 20th of the following month. Quarterly filers have a deadline of the 22nd or 24th of the month following the quarter, depending on the State grouping.
GSTR-9 is the annual return, due by 31 December of the subsequent financial year unless extended by notification. It is filed at the GSTIN level and cannot be submitted unless all GSTR-1 and GSTR-3B returns for the year have been filed first. For a group with multiple registrations across India, annual compliance works through a cascade. One delayed monthly return in one State can hold up the annual return for that GSTIN.
Businesses eligible for the Quarterly Return Monthly Payment (QRMP) scheme can reduce their return-filing frequency. Under QRMP, the Invoice Furnishing Facility covers the first two months of the quarter and must be filed by the 13th of the succeeding month. The quarterly GSTR-1 for the third month remains mandatory. For smaller or mid-sized operations, this can reduce the administrative load while still allowing customers to recover input tax credit without significant delay.
There was a time when e-invoicing in India was a requirement for only large taxpayers. That threshold has reduced steadily, and from 1 April 2025, any business with annual aggregate turnover of USD 1.2 million (Rs. 10 crore) or more falls within its scope. The requirement is straightforward: every invoice must be reported to the Invoice Registration Portal within 30 days of the invoice date. The portal enforces this without exception. Invoices outside the window are rejected, and retrospective correction is not an option.
What this means operationally is that conversations around e-invoicing must take place in advance. ERP configuration, tax code mapping, invoice sequencing, and master data accuracy are not items to revisit after the first compliance issue surfaces. They are pre-conditions for compliant operation. A single misconfigured tax code or an incorrectly set date field creates a chain of problems like rejected invoices, mismatched return data, blocked input tax credits, and audit trail gaps.
Not every cross-border transaction involving India attracts GST, but determining which ones do requires more than a general understanding of the rules. The IGST Act sets out a clear framework for imports and exports, and the place-of-supply provisions within it determine both whether GST applies and in what form.
Goods imported into India attract IGST at the point of customs clearance and are treated as inter-state supplies. The same treatment applies to services imported into India. For outbound transactions, goods or services supplied from India to an overseas destination are treated as inter-state supplies and are generally zero-rated, which creates a useful structure for businesses with significant export activity.
Two routes are available for exporters under GST Portal guidance. Supplies can be made without payment of integrated tax, with a refund claimed on accumulated input tax credit. Alternatively, IGST can be paid on the export supply and then claimed back as a refund. Both routes require exporters to furnish a Letter of Undertaking in Form GST RFD-11 before zero-rated supplies are made.
Cross-border services sit in slightly more complicated territory. According to CBIC sectoral FAQs, services supplied from India to an offshore recipient can qualify as zero-rated inter-state supplies where sale proceeds are realised in convertible foreign exchange. But the word “can” is doing real work in that sentence. Whether a specific service transaction qualifies depends on its nature and the applicable place-of-supply rules. Businesses that assume zero-rating applies to all their outbound services without a proper review are taking a risk that the rules do not support
Businesses that manage goods and services tax GST in India most effectively are the ones that build compliance into the entry plan, not the ones that circle back to it after the entity is incorporated and the contracts are signed. By the time operations are live, the structural decisions have already been made and correcting them mid-stride is considerably more disruptive than getting them right the first time. The following are the steps that matter most before the first invoice goes out.
Getting these elements in place before commercial operations begin is not excessive caution. It is simply how GST stays manageable rather than becoming the problem that defines the first year in India.
Goods and Services Tax (GST) in India is not the most glamorous part of an India entry plan, but it is consistently the part that determines whether everything else runs smoothly. Businesses that get it right do not necessarily have more resources or better advisors. They simply make the decision to treat compliance as a structural input rather than an administrative obligation. India is a serious market, and it has a serious tax framework to match. Approaching one without respecting the other is where most avoidable problems begin.
The opportunity in India is well documented. What is less often said is that the path to it is cleaner than most foreign businesses expect, provided the groundwork is laid before the first transaction rather than after the first mistake. If you are planning an India entry and want the GST structure done right from the start, Stratrich can help.
