GST/Tax Calculator

Calculate taxes quickly for business or personal use.

### Features * **Add Tax**: Enter price before tax, get total price. * **Remove Tax**: Enter price with tax, find original price. * **Custom Rate**: Set any tax % (GST, VAT, Sales Tax).

### Example Product costs $100. Tax is 18%. * **Price with Tax**: $100 + 18% = $118 * **Reverse**: $118 includes tax. Original = $100.