"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."
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
"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
What Law Firms Say About LeanLaw
Real reviews from attorneys, firm administrators, bookkeepers, and billing coordinators who run their firms on LeanLaw every day.
"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."
"Tracking payments to specific matters was a nightmare before LeanLaw. Now everything syncs to QuickBooks automatically. We see invoices paid 70% faster."
"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."
"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."
"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."
"With LeanLaw, I get just the features I need: time tracking, invoicing and reporting without unnecessary add-ons. LeanLaw has made life much simpler."
"LeanLaw, with the newly designed QuickBooks Online Advanced platform, creates a healthier way of doing business. Together, they offer significant advantages."
"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."
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
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.
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.
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.
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.
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.
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.