How to Invoice as a Attorney in Louisiana

How to invoice as a attorney in Louisiana: LA sales tax 4.45% (services usually exempt), late fees capped at 1.5%/mo under La. Rev. Stat. §9:3500, written contracts required over $7,500. Step-by-step guide with a free template.

State sales tax
4.45%
Late fee cap
1.5%/mo
Net terms
30 days
Deposit
100%
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1. Louisiana-specific invoice requirements

  • Sales tax line: 4.45% state rate. Most services rendered in Louisiana are exempt from sales tax — but materials, parts, and tangible goods are not. State 4.45%; combined often 9-11%, highest in nation.
  • Late-fee cap: Louisiana statute La. Rev. Stat. §9:3500 caps interest on unpaid invoices at 1.5% per month. Spell out the rate in writing on every invoice and in your contract — courts won't enforce undisclosed fees.
  • Written contract required: Louisiana requires a signed agreement for any job over $7,500. Reference the contract number on the invoice.
  • Right-to-cancel notice: Customers in Louisiana get 72-hour cancellation rights on certain home-services contracts. Disclose this in your terms.

2. Attorney line items + standard terms

Every attorney invoice in Louisiana should itemize work clearly. Standard attorneys use Net 30 terms with a 100% deposit required upfront.

  • Hourly billing — billed by hour (~$350 default).
  • Flat fee — service — billed by flat.
  • Filing fees (cost advance) — billed by itemized.
  • Trust deposit (IOLTA) — billed by flat.

3. Attorney licensing in Louisiana

Bar admission required. Trust accounting (IOLTA) governed by state bar rules; commingling client funds is sanctionable.

4. Send and follow up

Send the invoice the same day work completes. Use software that records open events and offers a one-click online payment so you don't need to chase a check by mail. Louisiana customers expect digital payment options today — accepting card and ACH typically reduces days-to-paid by 30–50%.

Average invoice
$2,800
State
LA
Net terms
30 days
Deposit
100%

Louisiana metro guides

Metro-specific guides include the combined sales-tax rate and local pricing benchmarks.

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