Basic GST Calculations
1. Cost price = ₹22,500; Profit = ₹2,500; Selling price = ₹22,500 + ₹2,500 = ₹25,000.
GST = 18% of ₹25,000 = ₹4,500.
Final price = ₹25,000 + ₹4,500 = ₹29,500.
2. GST = 12% of ₹40,000 = ₹4,800.
Final price = ₹40,000 + ₹4,800 = ₹44,800.
3. GST = 5% of ₹1,250 = ₹62.50.
Total amount = ₹1,250 + ₹62.50 = ₹1,312.50.
4. Price after GST = ₹47,200.
Base price = 47,200 / 1.18 = ₹40,000.
5. Price per phone = ₹9,500; Total = ₹9,500 × 40 = ₹3,80,000.
GST = 12% of ₹3,80,000 = ₹45,600.
Discounted Prices and GST
6. Marked price = ₹30,000; Discount = 10% = ₹3,000.
Discounted price = ₹27,000.
GST = 12% of ₹27,000 = ₹3,240.
Final price = ₹27,000 + ₹3,240 = ₹30,240.
7. Price = ₹15,000; Discount = 5% = ₹750.
Discounted price = ₹14,250.
GST = 12% of ₹14,250 = ₹1,710.
Final price = ₹14,250 + ₹1,710 = ₹15,960.
8. Marked price = ₹28,000; Discount = 15% = ₹4,200.
Discounted price = ₹23,800.
GST = 18% of ₹23,800 = ₹4,284.
Final price = ₹23,800 + ₹4,284 = ₹28,084.
9. Marked price = ₹5,000; Discount = 20% = ₹1,000.
Discounted price = ₹4,000.
GST = 5% of ₹4,000 = ₹200.
Total bill = ₹4,000 + ₹200 = ₹4,200.
10. Price = ₹50,000; Discount = 8% = ₹4,000.
Discounted price = ₹46,000.
GST = 18% of ₹46,000 = ₹8,280.
Final price = ₹46,000 + ₹8,280 = ₹54,280.
GST Applied in Business Transactions
11. Purchase GST = 5% of ₹35,000 = ₹1,750.
Selling price = ₹35,000 + 30% of ₹35,000 = ₹45,500.
GST on sales = 18% of ₹45,500 = ₹8,190.
Net GST = ₹8,190 - ₹1,750 = ₹6,440.
12. GST collected = ₹7,000; GST paid = ₹5,500.
Net GST payable = ₹7,000 - ₹5,500 = ₹1,500.
13. GST = 28% of ₹1,00,000 = ₹28,000.
14. GST on purchase = 5% of ₹75,000 = ₹3,750.
Selling price = ₹75,000 + 40% of ₹75,000 = ₹1,05,000.
GST on sales = 12% of ₹1,05,000 = ₹12,600.
15. GST = 5% of ₹450 = ₹22.50.
Final bill = ₹450 + ₹22.50 = ₹472.50.
Reverse GST Calculation
16. Price after GST = ₹23,600.
Base price = ₹23,600 / 1.18 = ₹20,000.
17. Price after GST = ₹6,500.
Base price = ₹6,500 / 1.05 = ₹6,190.48.
18. Price after GST = ₹35,400.
Base price = ₹35,400 / 1.12 = ₹31,607.14.
19. Base price = ₹9,200.
GST = 18% of ₹9,200 = ₹1,656.
Final price = ₹9,200 + ₹1,656 = ₹10,856.
20. Profit = ₹25,000.
GST = 12% of base price.
We need 1.12 × base price = ₹25,000.
Base price = ₹25,000 / 1.12 = ₹22,321.43.
GST Applied to Real-World Services
21. GST = 12% of ₹6,000 = ₹720.
Per night = ₹6,000 + ₹720 = ₹6,720.
Total for 3 nights = ₹6,720 × 3 = ₹20,160.
22. GST = 18% of ₹4,000 = ₹720.
Total = ₹4,000 + ₹720 = ₹4,720.
23. GST = 5% of ₹15,000 = ₹750.
Total price = ₹15,000 + ₹750 = ₹15,750.
24. GST = 18% of ₹350 = ₹63.
Total ticket price = ₹350 + ₹63 = ₹413.
25. GST = 12% of ₹10,000 = ₹1,200.
Total service charge = ₹10,000 + ₹1,200 = ₹11,200.
Advanced GST Concepts
26. Input Tax Credit (ITC) is the credit a business can claim for the GST paid on purchases, which can be used to offset the GST liability on sales.
ITC = ₹5,000; GST on sales = ₹8,000.
Net GST payable = ₹8,000 - ₹5,000 = ₹3,000.
27. 5% GST on ₹10,000 = ₹500.
18% GST on ₹10,000 = ₹1,800.
Total GST = ₹500 + ₹1,800 = ₹2,300.
28. GST = 28% of ₹50,000 = ₹14,000.
Total cost = ₹50,000 + ₹14,000 = ₹64,000.
29. Exports are zero-rated under GST, meaning no GST is charged on exports, but exporters can claim a refund of any input GST paid.
30. GST increases retail prices because it adds a tax component on top of the base price. For businesses, GST compliance requires proper record-keeping and allows claiming input credits, reducing overall tax burden if managed well.