Understanding tax deductions for lawyers

In the 2018 tax year, 87.3% of taxpayers chose the standard deduction—a simpler, less time-consuming option. While only 11.4% opted for itemized deductions, typically because their eligible expenses justified the extra effort. (Source^[1])

As an attorney, you should be part of the minority group of taxpayers who itemize deductions. Your practice inherently involves numerous deductible expenses—bar association dues, continuing legal education (CLE) fees, client-related costs, travel expenses, and professional insurance premiums. These expenses almost always surpass the benefit offered by the standard deduction. 

Therefore, if you’re currently part of the majority choosing the standard deduction, you may unintentionally be missing out on valuable tax savings. 

This guide will help you clearly identify, document, and claim all the deductions available to attorneys, ensuring you optimize your tax situation and enhance your practice’s profitability while staying fully compliant with IRS requirements.

What are tax deductions?

Tax deductions lower the amount of income you’re taxed on, which means you pay less in taxes overall. 

There are two ways individuals and business owners can claim deductions on their tax return:

1- The standard deduction

The standard deduction is a flat amount the IRS allows you to deduct from your income—no questions asked, no receipts needed. The amount varies based on your filing status and adjusts annually for inflation. For example, in the 2024 tax year:

• Single filers: $14,600^[2]
• Married filing jointly: $29,200^[3]
• Head of household: $21,900^[4]

Claiming the standard deduction is simple and requires no itemizing of expenses. For most taxpayers with minimal deductible expenses, this is the most convenient option.

2- Itemized deductions

Itemized deductions allow you to list and deduct specific expenses you incurred during the year. These might include:

• Mortgage interest
• Medical expenses (above a certain threshold)
• Charitable donations
• State and local taxes
• And for business owners or self-employed professionals: a wide range of work-related expenses

Instead of claiming a flat deduction, you add up each deductible cost. If the total is more than the standard deduction, itemizing will reduce your tax bill more effectively.

Which one should lawyers use?

For attorneys, especially those who are self-employed, partners in a firm, or running a solo practice, the standard deduction is often not enough to cover the many business-related expenses that come with practicing law.

Legal professionals regularly pay for the following:

• Professional licensing and bar dues
• Legal research tools like Westlaw or LexisNexis
• Malpractice insurance
• Office rent, supplies, and software
• Continuing legal education (CLE)
• Travel for court or client meetings
• Marketing and advertising

Most of these do not qualify under the standard deduction and can only be deducted if you itemize or file as a business owner.

How itemizing works for self-employed lawyers

If you’re self-employed or operate your own firm, you typically report your business income and deductions on Schedule C of your Form 1040. 

This is separate from itemizing personal deductions like mortgage interest or medical bills on Schedule A.

You can deduct your full range of qualified business expenses as long as they’re:

• Directly related to your legal practice. The expense must have a clear business purpose and must be directly tied to the operation of your law practice. That means you’re spending the money because of your work as a lawyer, not for personal reasons. It must help you perform your job, run your office, or serve your clients. 

You can’t deduct something that isn’t clearly connected to your professional work. If it has a mix of personal and business use—like a phone or laptop—you can only deduct the portion used for your practice.

• Properly documented with receipts, statements, and records. The IRS requires proof of all deductions. If you’re ever audited, you’ll need to show:
  

1. Receipts or invoices that show what you bought, when, and from whom
2. Bank or credit card statements confirming payment
3. Mileage logs or travel records if you deduct driving or business trips
4. Written explanations if the business purpose isn’t obvious (e.g., a dinner receipt may need a note about the client meeting)
   

• Ordinary and necessary according to IRS rules. The IRS uses these two terms to define whether an expense is appropriate. Ordinary means the expense is common in your industry. Necessary means the expense is helpful or useful for running your business, even if it’s not absolutely essential. 

These terms may sound vague, but the IRS expects your deductions to reflect the real costs of doing business in your field. The more clearly you can show that an expense fits the nature of legal work, the safer you are.

Here’s how the process works in detail:

1. You report gross income from your legal services

At the top of Schedule C, you list your gross receipts or sales—this includes all the income you’ve earned through legal services, whether from client payments, settlements, consultation fees, or retainers. 

If clients paid you via platforms like PayPal, bank transfers, or checks, those amounts are included here.

If clients pay more than $600 in a year and you’re not incorporated, they may issue you a Form 1099-NEC. You’ll need to report this income even if no 1099 was provided.

2. You deduct eligible business expenses, line by line

Schedule C includes a section specifically for reporting ordinary and necessary business expenses. Each category has its own line, for example:

• Line 9: Car and truck expenses (used for business purposes only)
• Line 18: Office expenses (utilities, office supplies, printer ink, etc.)
• Line 20: Rent or lease payments (office space or equipment)
• Line 27: Other expenses (legal research software, CLE, malpractice insurance)

The IRS provides specific instructions for what types of costs fall under each category, and you’ll need to keep detailed records (invoices, receipts, bank statements) to support each deduction in case of an audit.

The IRS expects expenses to be:

• Grouped correctly according to category
• Clearly labeled (especially for “Other Expenses”)
• Reported consistently from year to year

You can review the full breakdown of these categories and reporting rules in the official Schedule C instructions^[5]. 

3. Home office deduction, if applicable

If you work from home, you may be eligible to deduct a portion of your housing costs using the home office deduction. This is reported on Form 8829^[6], which flows into Schedule C.

You can use one of two methods:

• Simplified method: Deduct $5 per square foot of your home office (up to 300 sq. ft.).
• Actual expense method: Deduct a portion of your actual housing expenses (utilities, rent or mortgage interest, homeowners insurance, repairs) based on the percentage of your home used for business.

To qualify, the space must be used exclusively and regularly for your professional work.

4. Depreciation of equipment and assets

Expensive items like computers, furniture, or office equipment typically need to be depreciated, meaning you deduct their cost over several years. 

However, many self-employed lawyers use Section 179 to deduct the full purchase price in the year the item was placed in service as long as it meets IRS limits.

You report depreciation separately using Form 4562^[7], which then connects back to your Schedule C.

5. Self-employment tax considerations

Unlike W-2 employees, self-employed lawyers must pay both the employer and employee portions of Social Security and Medicare taxes, called self-employment tax. This is calculated on Schedule SE and is in addition to your income tax.

The rate is currently 15.3% of net earnings^[8].

But the good news is that you’re allowed to deduct half of that amount (7.65%) as an “adjustment to income” on your Form 1040, which reduces your taxable income (the income the IRS uses to calculate your income tax, not your self-employment tax). 

This doesn’t reduce the 15.3% itself, but it lowers the income that your income tax is based on.

Also read: Schedule SE (form 1040): Filing the self-employment tax form

6. Retirement plan contributions and health insurance

Although not deducted on Schedule C, contributions to a self-employed retirement plan like a Solo 401(k)^[9] or SEP IRA^[10] can be deducted above the line on your personal tax return, lowering your adjusted gross income (AGI)—your income after expenses and adjustments.

Similarly, if you pay for your own health insurance, you may be able to deduct premiums for yourself, your spouse, and your dependents—also outside of Schedule C but still an important tax-saving opportunity tied to your self-employment.

7. Separating personal and business expenses

This is especially important for solo attorneys and small firms. The IRS requires that all claimed deductions be strictly business-related. That means:

• Ensuring your personal and business bookkeeping are separate
• Keeping a separate business bank account and credit card
• Documenting client-specific costs vs. general overhead
• Avoiding mixed-use deductions (e.g., personal travel combined with business meetings) unless properly allocated

Expenses without clear business purpose or documentation are not deductible and may raise red flags during an audit.

Also read: Tax brackets 2023-2024: How much tax you owe

How to maximize your tax deductions?

Up-to-date, accurate bookkeeping sets the foundation for maximizing your tax deductions. Without clear records, it’s likely to miss eligible expenses, misreport categories, or lose documentation the IRS requires to support your claims.

Here’s how to make bookkeeping work in your favor:

• Track expenses in real-time: Record transactions as they happen—whether it’s a CLE course fee, bar membership renewal, or client travel costs. Waiting until year-end increases the risk of missing something.
  
• Use legal-specific accounting tools: Software like Clio Manage, QuickBooks, or a trusted bookkeeper can help you properly categorize expenses, generate reports, and prepare for tax filing with ease.
  
• Keep personal and business finances separate: Maintain a dedicated business bank account and credit card to simplify tracking and avoid mixing expenses.
  
• Save all receipts and supporting documents: Whether digital or paper, keep detailed proof of each deductible expense. This ensures compliance and protects you in case of an audit.
  
• Review your books monthly: Regular check-ins help catch errors early and give you a clear picture of your firm’s financial health—all while making tax season far less stressful.

The bottom line

Filing taxes as a lawyer comes with more complexity than most professionals face. From CLE fees to client expenses, every deduction must meet strict IRS criteria and that means proper categorization, documentation, and compliance at every step.

But before a CPA can help you take advantage of those deductions, they need something essential: accurate books. Without organized financial records, like income statements, expense tracking, and supporting receipts, your CPA won’t have the foundation needed to file correctly or identify every eligible deduction. 

At CoCountant, we make that first step seamless. Our team specializes in bookkeeping for lawyers, handling everything from categorizing transactions and reconciling accounts to generating tax-ready reports. We tailor our services to help you stay compliant, maximize deductions, and stay prepared year-round.  

Whether you need an expert to manage your trust accounting or help catching up on backlogged records, CoCountant has you covered.

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