GST Rate for Contractor - Updated 2026 Slab & HSN Details

Understanding GST Rates for Contractors in India

As a contractor in India, it is essential to understand the Goods and Services Tax (GST) rates applicable to your services. Works contract services are taxed at 18% (9% CGST + 9% SGST). The earlier 12% concessional rate for works contracts awarded by the Central Government, State Governments and local authorities was withdrawn with effect from 18 July 2022, so those supplies now attract 18% as well. Where a works contract service is used for construction of an immovable property (other than plant and machinery), the recipient cannot claim input tax credit under section 17(5) of the CGST Act, except where it is an input service for further supply of works contract service. Construction services are classified under SAC 9954 ("Construction services") — services use SAC codes, not HSN. SAC 995421 is only one sub-code under that heading and covers construction of highways, streets, roads, railways, airfield runways, bridges and tunnels; it should be used only where it exactly describes the work. Where the contractor supplies a composite works contract, the entry is the works contract entry under Sl. No. 3 of Notification No. 11/2017-Central Tax (Rate).

The GST rate for contractors is as follows:

HSN/SAC Code	Description of Services	GST Rate (%)	Effective Date
9954	Construction services (including composite supply of works contract); 995421 only for highways, roads, railways, runways, bridges and tunnels	18	01 July 2017; 18% for government works contracts from 18 July 2022

To calculate the GST amount, you can use the following calculator widget:

Calculate GST

function calculateGST() { var basePrice = document.getElementById("base-price").value; var gstRate = 0.18; var gstAmount = basePrice * gstRate; document.getElementById("gst-amount").innerHTML = "GST Amount: ₹" + gstAmount.toFixed(2); }

Detailed Tax Breakdown for Contractors

Composition Scheme vs Regular Scheme

Contractors in India can opt for either the composition scheme or the regular scheme. The composition scheme is available for contractors with an annual turnover of up to ₹1.5 crores, and it requires them to pay a fixed percentage of their turnover as GST.

The regular scheme, on the other hand, requires contractors to pay GST on the value of their services, and they can claim input tax credit (ITC) on the goods and services used in their business.

The following table compares the two schemes:

Scheme	GST Rate (%)	ITC Eligibility	Annual Turnover Limit
Composition (service providers, section 10(2A))	6	No ITC	Turnover up to ₹50 lakh
Regular Scheme	18	Yes	No limit

Comparison with Pre-GST Tax Regime

Service Tax vs GST

Before the introduction of GST, contractors in India were required to pay service tax on their services. The service tax rate was 15%, and it was levied on the value of the services provided.

The following table compares the service tax rate with the GST rate:

Tax Type	Tax Rate (%)	Effective Date
Service Tax	15	June 1, 2015
GST	18	July 1, 2017

The GST rate is higher than the service tax rate, but it provides more comprehensive coverage, including the taxation of goods and services.

Frequently Asked Questions

Input Tax Credit and Compliance

Contractors in India often have questions about input tax credit (ITC) and compliance under the GST regime. Here are some frequently asked questions:

• What is input tax credit (ITC)?
• Input tax credit (ITC) is the credit available to contractors for the GST paid on goods and services used in their business.
• How can I claim ITC?
• Contractors can claim ITC by filing their GST returns and providing the necessary documentation, including invoices and receipts.
• What are the compliance requirements under GST?
• Contractors are required to file their GST returns on a monthly or quarterly basis, depending on their annual turnover. They are also required to maintain accurate records and provide documentation as required.

Contractors should ensure that they comply with the GST regulations to avoid penalties and fines.

Compliance Tips for Contractors

Contractors in India can avoid common billing mistakes and ensure compliance with the GST regulations by following these tips:

1. Maintain accurate records: Contractors should maintain accurate records of their transactions, including invoices, receipts, and payment receipts.
2. File GST returns on time: Contractors should file their GST returns on a monthly or quarterly basis, depending on their annual turnover.
3. Provide documentation: Contractors should provide documentation, including invoices and receipts, to support their ITC claims.
4. Verify GSTIN: Contractors should verify the GSTIN of their suppliers and customers to ensure that they are dealing with registered entities.

By following these tips, contractors can ensure compliance with the GST regulations and avoid penalties and fines.

Rate position checked against the CBIC rate notifications (Notification No. 11/2017-Central Tax (Rate) and Notification No. 9/2025-Central Tax (Rate) as amended) and the GST Council's 56th meeting recommendations.