How to Do Accounting for a Small Law Firm Without an Accountant

Learn to manage your small law firm's accounting without hiring a full-time accountant. Practical steps, tools, and tips for solo and small practices.
Running a small law firm means you wear many hats, and accounting is one you can’t ignore. You don’t need a full-time accountant to keep your books in order, but you do need a system. This guide shows you how to handle accounting for your small law firm on your own, using practical steps and affordable tools.
Set Up Your Accounting Foundation
Before you track a single dollar, you need the right structure. This is the groundwork that makes everything else easier.
Open a Separate Business Bank Account
This is non-negotiable. Mixing personal and business funds creates chaos at tax time and can jeopardize your liability protection. Open a business checking account and a business credit card. Use them exclusively for firm expenses. Most banks offer free business checking for small balances, or you can use an online bank like Mercury or Relay, which are free and designed for small businesses.
Choose an Accounting Method
Two options: cash basis or accrual basis. Cash basis records income when you receive it and expenses when you pay them. Accrual basis records income when you earn it (even if not yet paid) and expenses when you incur them. Most small law firms use cash basis because it’s simpler and matches cash flow. However, if you have trust accounts or carry significant receivables, accrual may give a clearer picture. Consult a tax professional if unsure, but start with cash basis for simplicity.
Select Accounting Software
You don’t need a bookkeeper, but you do need software. Options range from $0 to $100+ per month. Here’s a comparison:
| Software | Best For | Price Range (Monthly) | Key Features |
|---|---|---|---|
| Wave | Solo attorneys on a budget | $0 (free) | Invoicing, expense tracking, basic reporting |
| QuickBooks Online | Small firms needing full features | $30-$100 | Trust accounting, invoicing, payroll, reports |
| Xero | Firms with multiple users | $13-$65 | Invoicing, bank feeds, project tracking |
| FreshBooks | Service-based billing | $15-$55 | Time tracking, invoicing, expenses |
| Clio Manage | Law-specific practice management | $39-$99 | Includes billing, trust accounting, and matter tracking |
| Zoho Books | Budget-conscious firms | $0-$30 | Invoicing, bank reconciliation, inventory (if needed) |
For a law firm, Clio Manage is popular because it integrates billing, trust accounting, and practice management. But if you’re just starting, Wave or Zoho Books can work.
Track Income and Expenses
Once your system is set, you need to record every transaction. This is the core of accounting.
Record Every Transaction
Set aside 15 minutes each day or 30 minutes each week to enter transactions. With software, you can connect your bank account to automatically import transactions. Categorize each one: legal fees, office rent, software subscriptions, marketing, etc. Be consistent. If you use a credit card, record those expenses too.
Invoice Clients Promptly
Your income depends on invoicing. Send invoices immediately after work is done. Use software that lets you create professional invoices with your firm’s branding. Set clear payment terms (e.g., net 15 or net 30). For retainers, track them separately as unearned income until you earn them.
Manage Trust Accounts Carefully
If you handle client funds, you must maintain a separate trust account (IOLTA). This is not your operating account. Record every deposit and withdrawal. Use software with trust accounting features, like Clio or QuickBooks, to avoid commingling funds. Many states require monthly reconciliation of trust accounts. Make this a habit.
Reconcile Your Accounts Monthly
Reconciliation means matching your bank statements to your accounting records. This catches errors and prevents fraud. Do this monthly.
Steps to Reconcile
- Download your bank statement for the month.
- In your accounting software, open the reconciliation tool.
- Check off each transaction that appears on both the statement and your records.
- Investigate any discrepancies.
- Once the balance matches, mark the reconciliation complete.
Most software has a reconciliation feature that makes this easy. It takes 30-60 minutes per account.
Prepare for Taxes
You don’t need an accountant to file taxes, but you do need to stay organized.
Track Deductible Expenses
Common deductions for law firms include:
- Office rent and utilities
- Software subscriptions (legal research, practice management)
- Continuing legal education (CLE) costs
- Bar dues and professional memberships
- Marketing and advertising
- Office supplies
- Insurance (malpractice, business)
- Mileage for client meetings (keep a log)
Use separate categories in your software for each. At year-end, you’ll have a profit and loss statement ready.
Pay Estimated Taxes Quarterly
As a self-employed owner, you must pay estimated taxes quarterly (April, June, September, January). Use last year’s tax return or your current profit to estimate. The IRS Form 1040-ES has a worksheet. Many states also require estimated payments. Set aside 25-30% of your net income in a separate savings account for taxes.
Know Your Deadlines
Mark these on your calendar:
- April 15: Individual tax return and first quarter estimated tax
- June 15: Second quarter estimated tax
- September 15: Third quarter estimated tax
- January 15: Fourth quarter estimated tax
If you miss a deadline, you’ll face penalties. Set reminders.
Generate Key Financial Reports
You don’t need a full financial analysis, but you should review three reports monthly:
- Profit and Loss (P&L): Shows income and expenses over a period. It tells you if you’re profitable.
- Balance Sheet: Shows assets, liabilities, and equity. It gives a snapshot of your firm’s financial health.
- Cash Flow Statement: Shows cash coming in and going out. It helps you plan for slow months.
Most software generates these reports automatically. Spend 30 minutes each month reviewing them. Look for trends: Are expenses creeping up? Is income steady? This is your early warning system.
FAQ
Can I really do accounting without an accountant?
Yes, if you’re organized and use the right tools. Many solo attorneys manage their own books. The key is consistency. If you fall behind, it becomes overwhelming. Set a weekly routine.
What’s the biggest mistake small law firms make?
Mixing trust funds with operating funds. This is not just a mistake; it’s a serious ethical violation that can lead to disbarment. Always keep trust accounts separate and reconcile them monthly.
How much should I set aside for taxes?
A good rule of thumb is 25-30% of your net income. This covers federal and state taxes. If you’re in a high-tax state or have high income, you may need more. Adjust after your first year.
When should I hire a professional?
If your firm grows, you take on partners, or you find yourself spending more than 5 hours a week on accounting, it’s time to consider a part-time bookkeeper or a CPA for tax planning. But for a solo practice, you can handle it yourself.
The Bottom Line
Accounting for a small law firm without an accountant is entirely doable with the right system. Open a separate business account, choose software that fits your budget, track every transaction, reconcile monthly, and stay on top of taxes. Review your reports regularly to keep your finger on the pulse of your firm’s finances. You’ll save money and gain a clear understanding of your business. Start this week: set up your software, connect your bank, and categorize your last month’s transactions. You’ll be on your way to financial clarity.