| Professional tax registration in Maharashtra | Employers (PTRC) and entities, directors & professionals (PTEC) | Salary-slab based, up to the annual cap (verify current Maharashtra slab) | Within 30 days of becoming liable (verify) | Monthly or annual PTRC returns based on prior-year liability (verify) |
| Professional tax registration in Karnataka | Employers and self-employed persons above the salary threshold (verify) | Slab based on monthly salary (verify current slab) | Within 30 days of employing staff / starting practice (verify) | Monthly PTRC returns; annual PTEC payment (verify) |
| Professional tax registration in West Bengal | Employers, professionals and traders per the WB schedule | Salary-slab based (verify current slab) | Within the statutory window from liability date (verify) | Monthly deposit with annual return in most cases (verify) |
| Andhra Pradesh | Employers and enrolled persons per the AP First Schedule | Salary-slab based (verify current slab) | Within 30 days of liability (verify) | Monthly returns for employers (verify) |
| Telangana | Employers and self-employed persons per the Telangana schedule | Salary-slab based (verify current slab) | Within 30 days of liability (verify) | Monthly returns for employers (verify) |
| Tamil Nadu | Employers and professionals — levied by municipal bodies | Half-yearly slabs set by the local body (verify) | As notified by the relevant corporation/municipality (verify) | Half-yearly payment in most local bodies (verify) |
| Gujarat | Employers (PTRC) and entities/professionals (PTEC) | Salary-slab based (verify current slab) | Within the statutory window from liability date (verify) | Monthly returns for employers; annual PTEC payment (verify) |
| Madhya Pradesh | Employers, professionals and traders per the MP schedule | Salary-slab based (verify current slab) | Within the statutory window from liability date (verify) | Periodic returns as prescribed (verify) |