Why Law Firm Bookkeeping Is Different
Law firm bookkeeping involves two separate sets of books that must never be mixed: your operating (general) account and your trust account. This isn't a best practice — it's a legal requirement enforced by provincial Law Societies.
Beyond trust accounting, law firms deal with HST on professional fees, complex disbursement billing, partner draws and profit-sharing, and often professional corporation (PC) structures. Each of these creates bookkeeping complexity that generalist bookkeepers routinely handle incorrectly.
Trust Accounts: The Foundation of Law Firm Compliance
A trust account holds money belonging to your clients — retainers, settlement proceeds, real estate closing funds, estate assets. This money is not yours until you have earned it and properly billed for it.
The Three Rules of Trust Accounting 1. **Never commingle**: Client funds in trust must never be mixed with your operating funds. Paying an office expense from trust, even temporarily, is a serious violation. 2. **Prompt transfer**: Once you earn fees (complete the work, issue the invoice), you transfer the earned amount from trust to your operating account. Leaving earned fees in trust too long is also non-compliant. 3. **Monthly three-way reconciliation**: Your trust bank statement, your trust ledger, and your client-by-client balance listing must agree — to the penny — every month.
What Monthly Three-Way Trust Reconciliation Looks Like | Reconciliation Component | What It Checks | |---|---| | Bank statement balance | Total in trust bank account | | Trust ledger balance | Total of all trust transactions in your books | | Client-by-client listing | Sum of every individual client's trust balance |
All three numbers must be identical. A variance — even $0.01 — must be investigated and resolved before the month closes.
Failure to reconcile trust accounts is one of the most common Law Society compliance violations, and can result in disciplinary action, practice conditions, or suspension.
HST on Legal Services: What's Taxable and What's Not
Most legal services are taxable under the Excise Tax Act. As a lawyer registered for HST/GST, you charge HST on your professional fees.
Taxable Legal Services (HST Applies) - Litigation and court representation - Corporate transactions, mergers, acquisitions - Real estate legal services (with some exceptions below) - Family law matters - Employment law, immigration law - Criminal defence (GST/HST on fees, not on any fines paid) - Wills and estate planning - Intellectual property
Exempt or Zero-Rated Services (No HST) - Services provided to non-residents (zero-rated) - Certain services related to residential real estate under specific conditions - Legal aid work (check provincial rules)
Disbursements and HST: The Nuance Disbursements are costs you incur on behalf of clients. The HST treatment depends on how they're billed:
No HST on disbursements: Court filing fees, land title search fees, government fees — these are pass-through costs paid to government agencies that do not charge HST. When you bill them back to the client at the same cost, no HST applies.
HST on disbursements: Courier, photocopying, process servers, expert reports, travel expenses — when billed to clients (even at cost), these are generally part of your taxable supply and HST applies.
Billing disbursements incorrectly — either under-collecting or over-collecting HST — is a common CRA audit flag for law firms.
Partner Draws, Salaries, and Profit Distributions
Law firm structure determines how lawyers are compensated — and how it's recorded in the books.
Sole Practitioner A sole practitioner draws from the business account. These are **owner's draws**, not a salary or wage. No T4 slip. The draw reduces equity in the books. The lawyer reports all net business income personally on Schedule T2125 (business income).
Partnership In a general partnership, partners receive draws against their profit share. Each partner has a capital account in the books. Year-end profit allocation is recorded per the partnership agreement. Partners receive a T5013 (partnership income slip), not a T4.
Law Professional Corporation (LPC) When the practice is incorporated: - The lawyer earns income by paying themselves a salary (T4) and/or dividends from the corporation - Salary reduces corporate income and creates a CPP obligation - Dividends are paid from after-tax corporate earnings — no CPP, but taxed differently personally - The mix of salary vs. dividends is a tax planning decision made annually with your CPA
All of these structures require different bookkeeping treatment, and mixing them up leads to incorrect T-slip issuance and tax filing errors.
Disbursement Tracking: Client Ledgers
Every client matter should have its own ledger tracking: - Trust received: Retainers or deposits paid in - Trust disbursed: Payments made from trust on the client's behalf - Fees billed: Professional fees invoiced - Fees collected: Payments received and transferred from trust or paid directly - Disbursements billed: Costs recovered from the client - Balance owing / trust balance: Net position at any time
This client-level ledger is required by Law Societies and is also essential for your accounts receivable management — knowing exactly what each client owes and how much trust you're holding for them.
Work in Progress (WIP) and Billing
Law firms typically have substantial unbilled WIP at any point in time: - Hourly matters: Time recorded but not yet invoiced (tracked in your practice management software) - Contingency matters: Fees contingent on outcome — not recognized as revenue until resolved - Flat fee matters: Revenue recognition depends on the stage of completion
For bookkeeping purposes, WIP is generally not recorded as revenue until billed (cash-basis accounting, common among smaller firms). Larger firms may use accrual accounting, which requires tracking WIP as an asset and recognizing revenue as work is performed.
Your bookkeeper should understand which method your firm uses and apply it consistently — especially important when your CPA is preparing corporate or business tax returns.
Year-End Checklist for Law Firms
Your year-end books should include: - Final trust reconciliation (three-way, all matters) - Transfer of earned retainers from trust to operating - All outstanding client invoices posted and aged - Partner draws and profit allocations reconciled - Disbursements billed and recovered reconciled - HST remittance reconciled (collected vs. remitted) - Input Tax Credits (ITCs) claimed on all firm expenses - T4 slips issued for employed staff (legal assistants, paralegals, clerks) - T4A slips for contract paralegals or agents paid $500+ - T5013 prepared (if partnership structure) - CCA schedule updated (furniture, computers, leasehold improvements, library/research materials)
Getting Your Law Firm's Books Right
At [Outsource Bookkeeping](/), we work with sole practitioners, boutique law firms, and Law Professional Corporations across Ontario and British Columbia. We understand trust accounting requirements, Law Society obligations, HST on legal fees, and disbursement tracking.
Our service starts at $500/month and includes monthly trust reconciliation, operating account close, financial statements by the 10th, and CPA-ready year-end packages.
[Book a free consultation](/contact) — we'll review your current books and trust account reconciliation at no cost.
[Learn more about our bookkeeping services →](/services/monthly-bookkeeping)
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