Home/Learn/GST Glossary/Self-AssessmentBack to glossary A–ZLetter SSelf-AssessmentTaxpayer determining their own GST liability in returns.Related termsSGST (State GST)SupplySEZ (Special Economic Zone)Standard RateAdditional Place of BusinessAdvance RulingAggregate TurnoverApplication Reference Number (ARN)Full GST glossaryFree GST tools