GST on Cement in India

Working out the GST on cement

Cement is taxed at a flat 18% whatever the type or pack size, so the arithmetic is straightforward. Multiply the taxable value by 18 percent to get the GST, then add it to the base price for the total.

• For an intra-state sale, the 18% splits into 9% CGST and 9% SGST.
• For an inter-state sale, a single 18% IGST applies instead.
• The calculator on this page is pre-set to the 18% rate and handles both cases.

A worked example

Suppose a cement order has a taxable value of ₹35,000 before tax. Applying 18% GST works out as follows.

The cement rate cut and what it covers

Cement was one of the biggest winners of GST 2.0. On 22 September 2025 the rate dropped from 28% to 18%, a change builders had wanted since 2017. It applies to every common type under HSN 2523, including OPC, PPC, PSC and white cement. The rate is set by composition, not packaging, so a 50 kg bag and a bulk tanker are taxed identically. Related construction materials sit at different rates, shown below.

The input tax credit trap on cement

This is where most people go wrong. A GST-registered business or developer can claim full input tax credit on cement bought for a taxable commercial project, offsetting the 18% against output tax. But cement bought for personal construction, such as building your own house, allows no ITC at all. Buying in a company name does not change this if the end use is personal. Getting this wrong is one of the most common cement GST mistakes.

Do not confuse HSN 2523 with 6810

Basic cement is HSN 2523. Finished cement articles, such as bricks, paver blocks and precast panels, fall under HSN 6810. Both are 18%, but putting the wrong code on an invoice creates mismatches during ITC reconciliation and can trigger notices in a GST audit. Match the code to the actual product, not to the material it is made from.

Cement inside a works contract

When a contractor supplies cement as part of a construction service rather than selling it as goods, the transaction becomes a works contract, which is a supply of service taxed at its own rate rather than at the 18% goods rate. This distinction matters on any build where materials and labour are billed together. If your contractor bills a single amount for the finished work, that is a works contract; if they bill you separately for cement delivered, that is a supply of goods at 18%.

Reverse charge and unregistered suppliers

A registered business buying cement from an unregistered supplier may fall under reverse charge, meaning the buyer accounts for the GST directly rather than paying it to the supplier. The buyer self-invoices and can usually claim the same amount back as input tax credit if the cement is used for a taxable business supply. This is worth checking on any purchase from a small local dealer.

E-way bills and documentation

Cement moves in bulk, so an e-way bill is required for consignments above the threshold value, generally ₹50,000, for inter-state movement and for intra-state movement in most states. The e-way bill must carry HSN 2523 and match the invoice. Mismatches between the e-way bill, the invoice and GSTR-1 are one of the most common triggers for scrutiny in the construction supply chain, because the volumes are large and the movements frequent.

Related construction materials

Cement rarely arrives alone, and the surrounding materials carry different rates. Natural sand is 5% under HSN 2505. Building bricks under 6904, earthen roofing tiles under 6905 and fly ash bricks and blocks under 6815 are all 12%, fixed there by Notification 14/2025-Central Tax (Rate) from 22 September 2025 — one of the very few places the 12% rate survived the GST 2.0 rationalisation. Refractory bricks are 18% under 6902. Rough marble and granite blocks attract 5%. Steel, glass, pipes and tiles are generally 18%. Building the right rate into each line of a materials invoice avoids both overpayment and ITC disputes later.

Frequently asked questions