Law Firm Bookkeeping: What Your CPA Should Be Handling

Quick Insights

• Trust account reconciliation, IOLTA compliance, and partner distribution calculations all carry significant professional and legal consequences — these require a CPA with legal industry experience, not a generalist bookkeeper.
• Law firm bookkeeping is governed by state bar ethics rules, not just accounting standards. The two don't always align, and the gaps are where violations happen.
• The right CPA brings matter-based accounting, cost recovery tracking, and tax planning that a typical bookkeeper simply cannot provide.

Running a successful law practice requires more than legal expertise. Behind every profitable firm lies a financial foundation that demands specialized knowledge of legal ethics requirements, bar regulations, and industry-specific tax strategy. While some attorneys handle their own books — or rely on general bookkeepers — this approach creates compliance gaps and leaves money on the table.

Law firm bookkeeping differs meaningfully from bookkeeping in other professional services. Your practice operates under strict ethical guidelines governing client funds, faces regulatory requirements that vary by state, and can benefit from tax strategies that generic accounting approaches don't address. The right question isn't whether you need professional support — it's whether your current CPA actually understands the legal industry. At Revonary, our professional service firms practice works with law firms across New York, Michigan, and beyond on exactly these challenges.

Trust Account Management and IOLTA Compliance

Trust account oversight is the most consequential aspect of law firm bookkeeping — and the one where errors are most costly. These accounts hold client funds and are governed by state bar regulations that carry severe penalties for violations, up to and including disbarment.

Under ABA Model Rule 1.15, attorneys must hold client funds separately from firm funds and maintain complete records for each matter. Most states have adopted equivalent rules with their own specific requirements, including IOLTA reporting obligations.

A CPA who understands this environment should be performing monthly three-way reconciliations — matching the trust account bank statement, trust account general ledger, and individual client ledger balances. This process catches discrepancies before they become ethics violations. They should also understand the ABA Model Rules on Client Trust Account Records and help ensure your firm's recordkeeping meets the specific requirements of your state bar. This is not work that should be delegated to automated software or a general bookkeeper. The liability exposure — both professional and financial — warrants dedicated expertise.

Key Takeaway: Most trust account violations don't start with bad intent — they start with poor recordkeeping. Monthly three-way reconciliations are the single most effective control your firm can have, and a CPA who skips them is leaving your license exposed.

Matter-Based Accounting and Cost Recovery

General bookkeeping tracks income and expenses by category. Law firm bookkeeping needs to track them by individual matter. This distinction matters because it's the only way to understand true case profitability and properly manage client billing.

Your CPA should implement a chart of accounts structure that captures time, costs, and disbursements at the matter level without creating an administrative burden on your team. This data supports accurate client invoicing, enables profitability analysis by practice area, and gives you the information you need to make informed decisions about which types of matters to pursue. For firms still working out their foundational financial systems, our accounting and bookkeeping services can help establish those structures from the ground up.

Cost recovery is an area many firms underutilize. Court filing fees, expert witness costs, deposition expenses, and other case-related disbursements represent a legitimate profit center — but only when they're tracked systematically and billed consistently. Your CPA should set up processes that capture these expenses as they occur, and help you understand which costs are ethically recoverable under your engagement agreements and applicable bar rules. Equally important is tracking non-billable expenses separately — without this, you can't assess true case profitability or make accurate decisions about overhead allocation.

Partner Distributions and Compensation Planning

Partner compensation in law firms involves calculations that need to be both accurate and well-documented. Whether your firm operates as a partnership, LLC, or professional corporation, distributions require careful attention to your governing agreements and the tax implications for each partner.

Your CPA should calculate partner distributions based on your firm's compensation model — whether that's equal sharing, origination credit, performance formulas, or some combination. They should also understand how distribution timing affects each partner's individual tax situation, and coordinate with partners' personal tax planning accordingly.

There are structural considerations here too. In S corporations and partnerships, the allocation of income between salary and distributions has self-employment tax implications that vary by entity type. Your CPA should model these scenarios and help your firm maintain the documentation that supports every compensation decision — particularly important in multi-partner firms where the risk of disputes is higher. Our consulting team regularly assists professional service firms with this kind of entity-level planning. If your firm has bank covenants or operating agreements that restrict distribution amounts or timing, your CPA should be aware of those constraints and build them into their planning process.

Tax Planning and Compliance Strategies

Law firms benefit from a range of tax planning strategies that require both expertise and proper documentation to implement effectively.

Retirement plans. For partners with high incomes and limited staff, cash balance plans and defined benefit plans can generate very large annual tax deductions — often well in excess of what a SEP IRA or standard 401(k) allows. The tradeoff is actuarial complexity and funding commitments, which is why this decision should be made with your CPA and reviewed annually. You can read more about this approach in our retirement planning case study.

Depreciation. Technology upgrades, office furniture, and other qualifying assets can generate meaningful deductions in the year of purchase through Section 179 expensing and bonus depreciation. Your CPA should track these purchases and advise on timing relative to your income expectations for the year.

Qualified Business Income (QBI). Law is classified as a Specified Service Trade or Business under IRC Section 199A, which means the QBI deduction phases out at higher income levels. This doesn't make the deduction unavailable — but it does require planning. Retirement contributions that reduce taxable income can, in some cases, restore eligibility. Our article on QBI and retirement trade-offs covers this in more detail, and it's a dynamic worth understanding before assuming the deduction is off the table.

Estimated taxes and quarterly planning. Partners receiving distributions rather than W-2 wages need to manage quarterly estimated payments carefully. Your CPA should project income throughout the year and help you avoid both underpayment penalties and the cash flow disruption of overpaying. For a broader view of the tax strategies available to high-earning professionals, our guide on reducing taxable income is a useful starting point.

Key Takeaway: Because law is a Specified Service Trade or Business, the firm's tax planning options are more constrained than in other industries — but they're not limited. High-earning attorneys who assume they've maxed out their options are often surprised by what cash balance plans and QBI management can accomplish with proper planning.

Financial Reporting and Performance Analysis

Your CPA should provide reporting that goes beyond a standard profit and loss statement. Law firm owners need to understand practice-specific metrics to run their firm effectively.

Useful metrics for most firms include realization rates by attorney and practice area (what percentage of billed time is actually collected), collection efficiency and aged receivables trends, cost per matter and profitability by case type, utilization rates and billing efficiency by attorney, and cash flow projections that account for seasonal patterns in your practice.

These reports should be reviewed monthly, with your CPA providing analysis — not just numbers. They should be able to help you distinguish between a temporary slow period and a pattern that warrants a structural response. The kind of proactive, year-round engagement this requires is the same approach we take with all our business clients — tax season is too late to start these conversations.

Working with the Right CPA

Not every CPA has the background to support a law firm well. The compliance requirements are specific, the ethical stakes are high, and the tax planning opportunities are genuinely different from those available to other professional service firms. Our guide on tax planning for entrepreneurs touches on many of the same themes, but the legal industry adds a layer of regulatory complexity that requires direct experience to navigate well.

At Revonary, we work with attorneys, law firms, and other professional service businesses across New York and the broader region. We understand the intersection of bar ethics requirements and accounting standards — and we bring the tax planning expertise and financial reporting capabilities that law firm owners actually need.

If your current bookkeeping arrangement isn't giving you the compliance confidence, financial visibility, or tax efficiency your firm deserves, we'd welcome the conversation. Contact our team to discuss your situation.