Legal Accounting Software Built on QuickBooks Online
LeanLaw is legal accounting software for law firms that don't want to replace the books they already keep. Matter-based billing, trust accounting, and law firm financial reporting — all layered natively on top of QuickBooks Online.
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
What Is Legal Accounting Software?
Legal accounting software — sometimes called law firm accounting software — combines general bookkeeping with the requirements unique to legal work: matter-based time and billing, trust and IOLTA compliance, and reporting like realization and utilization that general small-business accounting tools were never built to produce.
Some products solve this by replacing your general ledger outright. LeanLaw takes the opposite approach: it adds every legal-specific capability directly on top of QuickBooks Online, so your firm's books stay exactly where your bookkeeper or outside CPA already knows how to find them.
- Matter-based time entry, billing, and LEDES billing formats
- Native trust accounting with automated three-way reconciliation
- Real-time, two-way sync — QuickBooks Online stays your system of record
- Law firm reporting: realization, utilization, and matter profitability
- No second general ledger to maintain or reconcile against
Every invoice and payment posts live to QuickBooks Online — no double entry
Legal Accounting Doesn't Require Leaving QuickBooks
Most firms — and most bookkeepers — already run on QuickBooks Online. LeanLaw treats that as a strength, not a problem to route around. Instead of exporting data into a separate legal ledger, LeanLaw plugs three legal-specific layers directly into the QuickBooks general ledger you already use.
Matter-Based Billing
Time entry, invoicing, and LEDES billing are tied to the matter and timekeeper — then post straight into QuickBooks Online as standard transactions your accountant already understands.
Trust Accounting
IOLTA-compliant trust accounts, per-client ledgers, and automated three-way reconciliation run natively inside QuickBooks Online — see the full breakdown on the trust accounting page.
Advanced Reporting
Realization, utilization, matter profitability, and outstanding-invoice dashboards are generated from the same QuickBooks data — no second system for your team to reconcile against.
Everything Legal Accounting Requires — Nothing QuickBooks Already Does
LeanLaw fills the legal-specific gap in general accounting software without duplicating what QuickBooks Online already does well.
Realization & Utilization by Timekeeper
See exactly how much billed time converts to collected revenue, and how utilized each timekeeper is — reporting general accounting software has no concept of a billable matter to produce.
IOLTA Compliance, Automated
Client funds stay separated from operating funds automatically, with continuous three-way reconciliation across bank, ledger, and per-client balances.
Billing Tied to the Matter, Not Just the Client
Time entries, invoices, and LEDES billing codes are organized by matter and timekeeper — the structure corporate legal departments and bar audits expect.
Real-Time, Two-Way — Not a Nightly Export
Every invoice, payment, and trust transaction posts to QuickBooks Online the moment it happens, so your books are never a day behind your billing.
Online Payments That Post Automatically
Clients pay online via Confido Legal, and payments apply to the correct invoice and matter in both LeanLaw and QuickBooks without manual entry.
Know Which Matters Actually Make Money
Compare billed time, collected revenue, and expenses at the matter level — visibility a general ledger alone can't provide.
"We finally know which flat fees are making us money and which ones are killing us."
Karyn Anderson
Total Sum Accounting
Built for Firms That Want to Keep QuickBooks
Not every legal accounting product is a fit for every firm. If your firm — or your outside bookkeeper — already relies on QuickBooks Online, migrating to a standalone legal accounting platform means giving up a system your accountant already trusts and learning a new one from scratch.
LeanLaw is built for exactly that situation: firms that want law-firm-specific accounting — trust compliance, matter billing, legal reporting — without abandoning QuickBooks Online as their financial system of record.
Firms that don't use QuickBooks at all, or want case management, intake, and documents bundled into the same login as billing, will generally be better served by an all-in-one legal practice management platform instead.
LeanLaw Is a Strong Fit If Your Firm...
Already uses QuickBooks Online
Or wants to — and would rather add legal-specific accounting on top than migrate to a new general ledger.
Bills hourly, flat-fee, or contingency
Matter-based time entry and billing adapt to how your firm actually charges clients.
Holds client funds in trust
Native IOLTA compliance and three-way reconciliation remove the manual reconciliation risk of spreadsheets.
Wants an accountant-friendly system
Your bookkeeper or CPA keeps working in QuickBooks — no second system for them to learn.
Needs law-firm financial visibility
Realization, utilization, and matter profitability reporting that general accounting software doesn't produce.
"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
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
Legal Accounting Software — Common Questions
What is legal accounting software?
Legal accounting software is a system that combines general bookkeeping with law-firm-specific requirements — matter-based time and billing, trust/IOLTA compliance, and financial reporting like realization and utilization. Some products replace general accounting software entirely; others, like LeanLaw, add those legal-specific capabilities directly on top of QuickBooks Online so the firm keeps one financial system of record.
Is legal accounting software different from law firm accounting software?
No — "legal accounting software" and "law firm accounting software" describe the same category of tools. Both refer to accounting systems purpose-built for the compliance and billing needs of law firms, including trust accounting, matter-level profitability, and legal-specific billing formats.
Do I need separate accounting software if I already use QuickBooks Online?
Not necessarily. LeanLaw is built to add legal-specific accounting — matter-based billing, trust accounting, and law firm reporting — directly on top of QuickBooks Online, so firms don't have to replace the accounting system their bookkeeper or CPA already knows. This differs from all-in-one legal accounting platforms that require migrating off QuickBooks entirely.
Does legal accounting software handle trust accounting and IOLTA compliance?
It should. Trust accounting — keeping client funds separated from operating funds and reconciled against bar requirements — is one of the core reasons law firms need accounting software built specifically for legal work rather than generic small-business accounting tools. LeanLaw automates three-way trust reconciliation natively inside QuickBooks Online.
What reports does legal accounting software provide that general accounting software doesn't?
Legal accounting software typically adds matter-level profitability, timekeeper realization and utilization, outstanding trust balances, and LEDES/e-billing formats — reporting general accounting software isn't built to produce because it has no concept of a legal matter or billable timekeeper.
Legal Accounting That Lives Inside QuickBooks Online.
Join 1,000+ law firms that rely on LeanLaw for matter-based billing, trust accounting, and financial reporting — all synced live to QuickBooks Online. No second ledger, no double entry.