How to Calculate Sales Tax in Calcasieu, Louisiana
2026 guide to combined rates, purchase math, exemptions, filing steps, and official state resources.
Sales tax math for Calcasieu
Use the current combined rate, confirm taxable item treatment, and verify permit and filing duties with the state before charging customers or filing returns.
Current combined rate
10.800%
ZIP codes in page bundle
0
Calculation flow
Price, tax, total
Rate Components
State, county, city, and special district sales tax breakdown
| Component | Rate |
|---|---|
| Louisiana State Sales Tax | 5.000% |
| Special District Tax | 5.800% |
| Combined Sales Tax Rate | 10.800% |
Steps
Step 1
Find the combined rate
Use the current 10.800% combined rate for Calcasieu.
Step 2
Convert it to a decimal
10.800% becomes 0.1080.
Step 3
Multiply by the purchase amount
This gives the sales tax due for that transaction.
Step 4
Add the tax back to the price
The result is the final total the buyer pays.
Purchase examples
| Purchase | Tax | Total |
|---|---|---|
| $25.00 | $2.70 | $27.70 |
| $50.00 | $5.40 | $55.40 |
| $100.00 | $10.80 | $110.80 |
| $250.00 | $27.00 | $277.00 |
| $500.00 | $54.00 | $554.00 |
| $1,000.00 | $108.00 | $1,108.00 |
Taxable items and exemptions
Check grocery, resale, nonprofit, manufacturing, prescription, digital goods, and other category-specific rules before using the combined rate for a transaction.
Permit and filing steps
Register, collect, file, and remit through the state department of revenue. Businesses should confirm filing frequency, account status, and due dates before a return is submitted.
Frequently asked questions