How to Invoice as a Attorney in Chicago, IL

Invoicing guide for attorneys in Chicago: 6.25% IL sales tax, 1.5%/mo late-fee cap, plus IL licensing and contractor rules.

Combined sales tax
6.25%
Late fee cap
1.5%/mo
Net terms
30 days
Deposit
100%
Create your first invoice freeSee pricing

1. Chicago-specific tax handling

  • State sales tax: 6.25%. Local jurisdictions in Chicago may add their own rate — verify with your local tax assessor.
  • Late fees: IL statute 815 ILCS 205/4 (Interest Act) caps interest on unpaid invoices at 1.5% per month.

2. Standard attorney line items

  • 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. Payment terms that work in Chicago

Net 30 is standard for attorneys. Most attorneys in competitive markets like Chicago require a 100% deposit upfront before scheduling work. Accept card and ACH on the invoice itself — Chicago customers expect a one-click payment link in their inbox.

4. Licensing & disclosures

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

Metro
Chicago
State
IL
Net terms
30 days
Deposit
100%

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