🧾 GST / VAT / Sales Tax Calculator

To add tax: Total = Base Price × (1 + Tax Rate / 100). For example, with a base of 1,000 and 18% tax: Total = 1,000 × 1.18 = 1,180. Tax amount = 1,180 − 1,000 = 180. Use the "Add Tax" option in this calculator.

To remove tax from an inclusive price: Base Price = Total Price × 100 / (100 + Tax Rate). For example, if a total is 1,180 with 18% tax: Base = 1,180 × 100 / 118 = 1,000. Tax amount = 1,180 − 1,000 = 180. Use the "Remove Tax" option in this calculator.

These are components of India's GST. CGST (Central GST) and SGST (State GST) are charged on intra-state (within the same state) transactions — each is 50% of the total GST rate. For example, at 18% GST: CGST = 9% and SGST = 9%. IGST (Integrated GST) is charged on inter-state transactions and collected entirely by the central government at the full rate.

Registration thresholds vary by country. Examples: India — ₹40 lakh annual turnover (₹20 lakh for special category states); UK — £90,000; Australia — A$75,000; Singapore — S$1 million; UAE — AED 375,000; Canada — CA$30,000. Always check your local tax authority for exact thresholds and mandatory registration rules.

Most countries exempt or zero-rate essentials. India: fresh vegetables, milk, healthcare. UK: children's clothing, books, most food. Australia: fresh food, medical, education. UAE: exports, healthcare, education. The exact list differs by country — always verify with your national tax authority.