GST Calculator GST Calculator Calculate the GST amount for inclusive and exclusive GST scenarios. Amount Country Canada (5%) Australia (10%) Singapore (7%) India (18%) New Zealand (15%) Italy (22%) Germany (19%) France (20%) Malaysia (6%) South Africa (15%) Japan (10%) United Kingdom (20%) Brazil (17%) Spain (21%) Mexico (16%) Thailand (7%) South Korea (10%) Argentina (21%) Russia (20%) China (13%) Inclusive GST Exclusive GST Calculate Reset Your GST amount will appear here.