Louisiana property tax is built on a low 10% assessment ratio and a generous $75,000 homestead exemption, which together give the state one of the lowest effective property tax burdens in the country. This estimator applies those rules plus your parish millage rate to project your annual bill.
How it works
Louisiana assesses residential property at 10 percent of fair market value. The homestead exemption then removes the first $75,000 of market value — equivalent to $7,500 of assessed value — from the parish tax base for a primary residence:
assessed value = market value × 0.10
homestead reduction = min(assessed value, $7,500) if primary residence
taxable assessed = assessed value − homestead reduction
The tax is the taxable assessed value times the millage rate, where one mill is $1 per $1,000 of assessed value:
annual tax = taxable assessed × (millage ÷ 1000)
The homestead exemption applies to parish millage but typically not municipal millage, so this tool treats it as a parish-level reduction for an approximate bill.
Example
A $250,000 primary residence in a parish with a 120-mill rate: assessed value is $25,000, the homestead exemption removes $7,500, leaving $17,500 taxable. The tax is 17,500 × (120 ÷ 1000) = $2,100 per year, an effective rate of about 0.84% of market value.
Notes
Millage rates vary widely by parish and even by district within a parish, and they can change at each fall millage adoption. The homestead exemption does not cover municipal taxes, so city dwellers usually owe more than this parish-level estimate. Additional relief exists for disabled veterans and a senior assessment freeze. Always confirm your assessment and millage with your parish assessor’s office.