GST Profit Margin & Markup Calculator
Compute net selling price, wholesale billing rate, gross profit, and final consumer MRP inclusive of GST.
Pricing Parameters
Inclusive of Cost + Profit + GST
Price & Tax Breakdown Per Unit Costing
Understanding Profit Margin vs Markup Under GST in India
When pricing products in India, business owners frequently confuse Markup percentage with Profit Margin percentage. Applying GST on an improperly calculated selling price leads directly to eroded gross margins or inadvertent losses. Under the Goods and Services Tax (GST) regime, GST is computed strictly on the Taxable Selling Price (Cost + Desired Profit), never on the base purchase price alone.
Markup Calculation Formula
Markup is the percentage added directly to the Cost Price to establish selling price:
Profit Margin Calculation Formula
Margin represents the percentage of total pre-tax sales revenue that constitutes profit:
Markup to Margin Conversion Benchmark Table
| Cost Price (₹) | Markup % | Selling Price (Pre-Tax) | Effective Margin % | 18% GST (₹) | Final MRP (₹) |
|---|---|---|---|---|---|
| ₹1,000 | 10.00% | ₹1,100 | 9.09% | ₹198 | ₹1,298 |
| ₹1,000 | 25.00% | ₹1,250 | 20.00% | ₹225 | ₹1,475 |
| ₹1,000 | 50.00% | ₹1,500 | 33.33% | ₹270 | ₹1,770 |
| ₹1,000 | 100.00% | ₹2,000 | 50.00% | ₹360 | ₹2,360 |
Frequently Asked Questions on GST Margins
Should GST be charged on cost price or selling price?
Under the CGST/SGST Act Section 15, GST is always calculated on the Transaction Value (the final taxable selling price agreed between buyer and seller, inclusive of all profits and handling expenses, excluding only subsidies and standard trade discounts).
What is the difference between Intra-State and Inter-State GST split?
When selling within the same state (Intra-State), the total GST rate is divided equally into Central GST (CGST) and State GST (SGST) (e.g. 18% becomes 9% CGST + 9% SGST). For sales between different states (Inter-State), the entire 18% is billed as Integrated GST (IGST).
How can I protect my net profit margin when input raw material prices rise?
To maintain a fixed profit margin percentage (e.g., 20%), always compute your taxable selling price using the margin formula SP = Cost ÷ (1 - Margin%). Input Tax Credit (ITC) claimed on purchase raw materials will further reduce your cash tax liability in GSTR-3B.