St Tammany Parish Sales Tax 2024. The current sales tax rate in unincorporated st. While many counties do levy a countywide sales tax,.

If approved, sales tax rates throughout the parish would range from 9.1% to 9.6%, the report said, similar to those in jefferson parish, at 9.2%, and orleans parish,. Sims said the 2025 proposal cuts funding for the da’s office by $2.5 million.