LeanLaw
Legal Billing Software Reviews

The #1-Rated Legal Billing App in the QuickBooks App Store

Streamline your billing and get paid faster with LeanLaw — the legal billing software built natively on QuickBooks Online. See why 1,000+ law firms choose LeanLaw to automate invoicing and boost cash flow.

4.7 / 5 · 92 verified reviews

Rated on Capterra • #1 legal app in the QuickBooks App Store

1,000+

law firms run on LeanLaw

70%

faster invoice collections

$61K

leaked revenue recovered per attorney each year

20–50×

ROI for a typical 10-attorney firm

#1-rated legal app in the QuickBooks Online App Store QuickBooks Online Premium App Partner CLM Approved Provider
"We've used LeanLaw for a year and a half and we're able to invoice our clients within two to three days, versus 10 or 12 — quickly and electronically, and they pay us faster, which increases our cash flow."

Alicia Wood, Firm Administrator

Burkhalter Law

Customer Reviews

What Law Firms Say About LeanLaw

Real reviews from attorneys, firm administrators, bookkeepers, and billing coordinators who run their firms on LeanLaw every day.

"We finally know which flat fees are making us money and which ones are killing us. The effective hourly rate report was a game-changer for our pricing strategy."

Karyn Anderson

Total Sum Accounting

Verified Review
"The revenue allocation feature alone saves us 5+ hours every month. No more spreadsheets to figure out who gets paid what on flat-fee matters."

Jennifer Wells

Beard St. Clair Gaffney Law

Verified Review
"Tracking payments to specific matters was a nightmare before LeanLaw. Now everything syncs to QuickBooks automatically. We see invoices paid 70% faster."

Amanda Coughlan, Billing Coordinator

Zahn Law Group

Verified Review
"We've used LeanLaw for a year and a half and we're able to invoice our clients within two to three days, versus 10 or 12 — quickly and electronically, and they pay us faster, which increases our cash flow."

Alicia Wood, Firm Administrator

Burkhalter Law

Case Study
"When I saw LeanLaw and showed it to our most techy attorney, his eyes lit up and we jumped in. LeanLaw customer support has been outstanding."

Tammy Kayati, Bookkeeper

Barros, McNamara, Malkiewicz & Taylor

Case Study
"As a bookkeeper in the legal industry, I appreciate how well LeanLaw integrates with QuickBooks Online. It is simple to use and makes keeping up with law-firm finances far easier."

Brandy Derrick, Owner

Legal Ease Bookkeeping

Case Study
"With LeanLaw, I get just the features I need: time tracking, invoicing and reporting without unnecessary add-ons. LeanLaw has made life much simpler."

Kenny Lee

Lee Kiefer & Park

Verified Review
"LeanLaw, with the newly designed QuickBooks Online Advanced platform, creates a healthier way of doing business. Together, they offer significant advantages."

Sarah Prevost

Mintage Labs

Verified Review
"I share a mutual goal with LeanLaw: to reduce my clients' overhead and make sense of their financials. No other vendor provides the level of access and technical support."

Laurette Clash

P.I.E., Inc.

Verified Review
Recognition & Awards

Highest-rated legal billing app in the QuickBooks Online App Store

LeanLaw is the highest-rated legal billing app across the platforms attorneys, bookkeepers, and firm administrators trust most. Our rating reflects real user experiences — from solo practitioners to multi-office firms billing millions annually.

  • Highly rated on QuickBooks App Store
  • Highly rated on G2
  • Highly rated on Capterra
  • Highly rated on Software Advice
Why LeanLaw

Streamline Your Billing and Get Paid Faster

The #1 legal billing software for QuickBooks Online that automates invoicing and boosts law firm cash flow. Every feature is built to close the gap between time worked and revenue collected.

QuickBooks Integration

Seamless QuickBooks Online Integration

Enjoy real-time, two-way sync with QuickBooks Online, the industry standard for accounting. No more double data entry or lost invoices.

Invoicing

Customizable Invoice Templates

Create polished, professional invoices that reflect your firm's brand. Choose what details to include and tailor invoice messaging for each client.

Billing Workflows

Streamlined Billing Workflows

Transform time entries into invoices with a single click. Easily edit draft bills, route them for internal approval, and email them to clients — all within LeanLaw.

LEDES-Compliant Billing

Easily generate LEDES-format invoices that meet the complex billing requirements of institutional clients.

Evergreen Retainers & Trust Accounting

Automatically replenish retainers when they get low and seamlessly pay invoices from client trust accounts.

Invoice Reminders & Tracking

Send invoice reminders, track open invoices, and monitor whether emailed bills were received and viewed.

Accounts Receivable & Collections

Always know your firm's outstanding AR and collection rate. Easily identify and follow up on overdue invoices.

Origination & Compensation Tracking

See the source of your firm's billings and collections to calculate fair compensation for partners.

Productivity & Profitability Reporting

Monitor utilization, billable hours, and profitability by attorney, paralegal, client, or matter.

LeanLaw features — time entry, invoice builder, and payment collection workflow
Proven Results

70%

Faster Invoice Collections

See invoices paid 70% faster with accounting workflows from onboarding to collections. LeanLaw firms invoice clients within 2–3 days instead of 10–12 — and their cash flow shows it.

1,000+

law firms run on LeanLaw

$61K

leaked revenue recovered per attorney each year

20–50×

ROI for a typical 10-attorney firm

Figures reflect aggregate results reported by LeanLaw customers. Individual firm results vary.

FAQ

Frequently Asked Questions

Everything law firms ask before choosing LeanLaw as their legal billing software.

What is LeanLaw?

LeanLaw is legal billing software built natively on QuickBooks Online. It automates time tracking, invoicing, trust accounting, and revenue reporting for law firms of all sizes — from solo practitioners to multi-office firms. It is the #1-rated legal app in the QuickBooks Online App Store.

How does LeanLaw help law firms get paid faster?

LeanLaw streamlines the full billing cycle — from capturing time to delivering invoices to collecting payments. Firms using LeanLaw send invoices within 2-3 days instead of 10-12, and see collections improve by up to 70%.

What practice areas does LeanLaw support?

LeanLaw supports law firms in every practice area, including litigation, family law, real estate, corporate, immigration, and more. It handles hourly, flat-fee, and contingency billing models.

How does LeanLaw integrate with QuickBooks Online?

LeanLaw provides a real-time, two-way sync with QuickBooks Online. Every invoice, payment, and trust transaction posts automatically — no double entry, no manual exports, no reconciliation headaches. LeanLaw is a QuickBooks Online Premium App Partner.

Can LeanLaw handle client trust accounting?

Yes. LeanLaw supports evergreen retainers, trust accounting, and automatic retainer replenishment. You can apply invoices directly against client trust accounts and maintain a complete audit trail.

Is our data secure in LeanLaw?

Yes. All your firm's data is encrypted in transit and at rest, on secure cloud infrastructure with automatic backups.

What kind of support does LeanLaw offer?

Every LeanLaw subscription includes hands-on onboarding, full data migration, and a dedicated customer success team available after go-live. Live training is provided for attorneys, billing staff, and bookkeepers. Most firms send their first real invoice within 5 business days.

Clarity into your firm's revenue. Agency over what comes next.

Take control of your firm's financial health with one connected revenue experience — the next step is a demo with your data, not ours.

1,000+

law firms run on LeanLaw

70%

faster invoice collections

$61K

leaked revenue recovered per attorney each year

20–50×

ROI for a typical 10-attorney firm

Figures reflect aggregate results reported by LeanLaw customers — faster collections, recovered revenue, and ROI. Individual firm results vary.