West Sumbawa Regency's Single Tax System is a regional tax management application that is integrated as a single web-based regional tax application with an authentication system that can be used in several application modules using one account (Single Sign On). The features of the Single Tax System application are as follows:

1. Taxpayer Registration
2. Submission of Tax Objects, which consists of:
2.1. Hospitality Services
2.2. Food and/or Beverage Services
2.3. Arts and Entertainment Services
2.5. Advertisement tax
2.6. Electric Power
2.7. MBLB Tax
2.8. Parking Services
2.9. Groundwater Tax
2.10. Swallow's Nest Tax
2.11. PBB-P2
2.12. BPHTB
3. Reporting Module
4. Transaction Module
5. File Position Module
6. Taxpayer Profile Module