Side Income Tax Calculator for Louisiana

Side income in Louisiana is subject to federal income tax at your marginal rate, self-employment tax if applicable, and up to 4.25% Louisiana state income tax. Because side income typically stacks on top of your W-2 salary, it is often taxed at your highest marginal rates. The combined marginal rate on side income can easily exceed 40% for mid-to-high earners. This calculator breaks down exactly what you keep from each dollar of side income in Louisiana.

Louisiana uses a graduated income tax with brackets ranging from 1.85-4.25%. Lower income is taxed at lower rates, with the 4.25% top rate applying only to income in the highest bracket. This progressive structure means your effective state tax rate is always lower than the top marginal rate. Louisiana does not have local income taxes, so the state graduated rate is the total state-level income tax burden.

The table below shows what you actually keep at five salary levels in Louisiana, accounting for federal tax, FICA, and Louisiana's graduated (1.85-4.25%) state tax.

See how Louisiana compares to other South states. Each link takes you to the side income tax calculator landing page for that state.

For a comprehensive breakdown of Louisiana’s tax structure, salary comparisons, cost-of-living analysis, and more, visit the full Louisiana take-home pay page.