GST on Construction and Works Contracts in India (2026)

By Vystra · 18 August 2026

GST trips up a lot of contractors — not because it's hard, but because it's shown inconsistently on quotes and invoices. Here's a clear, practical view. (This is general guidance, not tax advice — confirm specifics with your accountant.)

The headline rate

Most works contracts are taxed at 18% GST. Some categories — affordable housing and specified government projects — attract 12% or 5%. Your project category decides the rate.

Input tax credit (ITC)

A registered contractor can usually claim credit for the GST paid on materials and services used in the contract, reducing net tax outgo. There are exceptions (e.g. construction of immovable property for own account), so check eligibility per project.

Showing GST correctly

A clean quotation shows:

1. Taxable value (your work + materials)
2. GST rate and amount (shown separately)
3. Total payable

Bundling GST into a single figure looks unprofessional and confuses clients at payment time.

Get it right on every quote

Manually adding GST to each quotation invites errors. Vystra's quotation builder produces GST-ready quotations and invoices with the tax split shown clearly and PDF export — so your billing looks professional and stays consistent across every project.

Frequently asked questions

What is the GST rate on works contract?

Most construction works contracts attract 18% GST. Affordable housing and certain government works can fall under lower rates like 12% or 5%. Confirm the applicable rate for your project category.

Can contractors claim input tax credit?

Registered contractors can generally claim input tax credit on GST paid for materials and services used in a works contract, subject to conditions. Personal/immovable-property exceptions apply.

How should GST be shown on a construction quotation?

Show the taxable value, the GST rate and amount separately, then the total. A clear split builds client trust and keeps your books clean.