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Louisiana Tax Calculator

The Louisiana (LA) Tax Calculator is updated for the 2026/27 tax year. It estimates Louisiana state income tax, federal tax, and FICA/Medicare withholdings to calculate total liabilities and take-home pay. Louisiana applies a progressive income tax with multiple brackets and allows certain federal deductions and credits, including for school tuition and child care expenses.

This calculator helps Louisiana residents and part-year residents quickly project their annual state and federal taxes using official thresholds and credits.

Quick Access Tools

Quick Louisiana Tax Calculator

Enter your income and filing status, then select Calculate. Use the advanced tabs to add dependents, itemized deductions, or IRA contributions. You can also include withholdings for a more complete refund or balance estimate.

Input key: F Used in Federal tax calculations S Used in State tax calculations

Quick Tax Calculation Detailed Tax Calculation
Filing Information Quick Inputs Income Details Deductions & Adjustments State Options IRA, Pensions & Annuities Withholdings

Filing Information

Set your filing status, dependants and personal details so the calculator can apply the correct Federal and State rules.

Quick Inputs

Provide a summary of your income and deductions to calculate your Federal and State tax position quickly.

Income Details

Enter the specific types of income that contribute to your Federal Adjusted Gross Income.

For Schedule B

Deductions & Adjustments

Deductions & Adjustments

Include any adjustments to income that reduce your Federal/State Adjusted Gross Income.

State Options

Some states apply local income taxes in addition to State tax. Enter your local rate if it applies.

IRA, Pensions & Annuities

Enter the details for your retirement contributions and income sources, which are used to compute values on **Form 8606**. This includes contributions to traditional IRAs, 529 savings plans, and rollovers, as well as income from rental properties, farms, unemployment, and other sources. Additionally, provide information on any disaster-related distributions or IRA rollovers you’ve made, and enter your capital gain distributions if applicable. These inputs are essential for accurately calculating your total retirement-related income and determining your tax liabilities or benefits, specifically regarding IRA deductions and distributions as outlined in **Form 8606**.

Withholdings

Enter withheld amounts to calculate refund or balance due.

How to Calculate Income Tax in Louisiana for 2026/27

  1. Enter your total annual income and any deductible expenses.
  2. Select your filing status (Single, Married filing jointly, Head of household, etc.).
  3. Click Calculate to view your Louisiana and federal tax liabilities and take-home pay.

Advanced Options

  • Include itemized deductions or dependents for accuracy.
  • Model IRA and 401(k) contributions to test pre-tax savings.
  • Add state and federal withholdings for refund projections.
  • Account for refundable credits such as school tuition or child care expense credits.

Related Calculators

Additional Resources

Frequently Asked Questions

Answers to common Louisiana filing questions, including resident and nonresident returns, deductions for school tuition, and child care credits.

T-Bills vs savings after tax

Compare in T-Bill using your marginal assumptions.

Interest/dividends handling

Include in income; if itemizing, summarize via Schedule B.

Mortgage fit vs Louisiana take-home

Run the Mortgage Calculator using your monthly net.

Daily spending trims add up

Estimate with Daily Expense Savings.

Saver’s Credit—state interaction

Take the federal Saver’s Credit if eligible; some state provisions may piggyback—reflect via credits if available.

Important Notes

All calculations are estimates for guidance only. Always review your return and consider professional advice when submitting official filings.