Taxes in Slidell
Slidell's tax picture combines St. Tammany Parish's genuinely below-national property tax rate with Louisiana's real, current flat 3% state income tax.
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Learn moreSt. Tammany Parish's genuinely below-national property tax
St. Tammany Parish's own effective property tax rate ran approximately 0.66%, with a median annual tax bill of approximately $1,335 on a median home value of approximately $201,800 -- genuinely below the ~1.02% national median.
Louisiana's real, current flat income tax
Louisiana's flat 3% individual income tax (effective January 1, 2025) replaced the old graduated 1.85%/3.5%/4.25% brackets, funded in part by a state sales tax increase from 4.45% to 5.0% (through 2029).
A real, current 15% flood-insurance discount
St. Tammany Parish participates in FEMA's Community Rating System, earning a real, current 15% discount on flood insurance premiums parish-wide -- a genuine offset against Slidell's real flood exposure.
Key takeaways
- St. Tammany Parish's effective property tax rate (~0.66%) runs genuinely below the national median.
- Louisiana's flat 3% state income tax (effective 2025) applies statewide, including in Slidell.
- St. Tammany Parish's real 15% FEMA CRS discount reduces flood-insurance premiums parish-wide.
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