St. Martin Parish, LouisianaProperty records & tax offices
Links open the listed public-office or service-provider website in a new tab. This directory does not collect payments.
Find the right property record
Use the property portal for ownership and assessed value, the collector for a bill or balance, and the map for parcel location. Have the address, owner name, or parcel number ready.
Tax bills & filing dates
These are the dates and qualifications recorded in the directory. Confirm your tax year and current deadline with the official office and your property’s notice.
- Tax bill mailing
- Shortly after November 15, 2026; the official calendar says the Louisiana Tax Commission certifies the roll by November 15 and the Sheriff mails tax notices shortly thereafter.
- Payment deadline
- December 31, 2026; Louisiana parish property taxes are due and payable by December 31, 2026 and become delinquent January 1, 2027, with applicable interest and penalties thereafter.
- Assessment appeal
- Rolls open August 19 and close September 4, 2026; Board of Review taxpayer appeal deadline September 29, 2026 at 4:30 p.m.; hearing October 6, 2026 at 5:00 p.m.; Louisiana Tax Commission appeal deadline November 9, 2026.
Exemptions & appeals
View exemption application (opens in a new tab)Exemption filing
June 30, 2026; the official St. Martin FAQ lists June 30 as the homestead filing deadline.
Valuation limits
No general annual parcel-assessment growth cap was verified. Louisiana requires real property reassessment at least every four years; qualifying Special Assessment Level homesteads may freeze assessed value subject to statutory exceptions, while millage changes can still change taxes.
For a valuation appeal, use the appeal date in the tax and filing section above. Keep your notice, supporting evidence, and proof of submission.
More exemption & appeal guidance →