Louisiana Local Sales Tax Calculator
This calculator helps you compute the local sales tax in Louisiana accurately. It's designed for businesses, consumers, and anyone needing to determine the applicable sales tax in different regions of Louisiana.
Calculator
Results
Amount:
$0.00
Sales Tax:
$0.00
Total:
$0.00
Data Source and Methodology
All calculations are based on official rates from the Louisiana Department of Revenue. All calculations are strictly based on formulas and data provided by this source.
The Formula Explained
The sales tax is calculated using the formula:
Total = Amount + (Amount × Sales Tax Rate)
Glossary of Terms
- Amount: The initial purchase amount.
- Sales Tax Rate: The percentage of tax applied to the amount.
- Total: The total amount including sales tax.
Frequently Asked Questions (FAQ)
What is the sales tax rate in Louisiana?
The sales tax rate in Louisiana varies by locality. Please refer to the official Louisiana Department of Revenue for accurate rates.
How do I use this calculator?
Enter the amount and select the locality to compute the sales tax.
Formula (LaTeX) + variables + units
This section shows the formulas used by the calculator engine, plus variable definitions and units.
Formula (extracted LaTeX)
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Formula (extracted LaTeX)
\[{amount.toFixed(2)}`; document.getElementById('resultTax').innerText = `\]
{amount.toFixed(2)}`; document.getElementById('resultTax').innerText = `
Formula (extracted text)
Total = Amount + (Amount × Sales Tax Rate)
Variables and units
- T = property tax (annual or monthly depending on input) (currency)
Sources (authoritative):
- Louisiana Department of Revenue — revenue.louisiana.gov · Accessed 2026-01-19
https://revenue.louisiana.gov/businesses/sales-taxes/general-sales-use-tax/
Changelog
Version: 0.1.0-draft
Last code update: 2026-01-19
Last code update: 2026-01-19
0.1.0-draft · 2026-01-19
- Initial audit spec draft generated from HTML extraction (review required).
- Verify formulas match the calculator engine and convert any text-only formulas to LaTeX.
- Confirm sources are authoritative and relevant to the calculator methodology.