Private Investigators, CPA & Tax Services

Why Private Investigators in Dallas Need a CPA Who Understands the Industry

Private investigation is a business built on precision, but the tax side of running a PI practice trips up even the most detail-oriented operators. Between surveillance vehicle write-offs that the IRS loves to challenge, client retainer funds that must be handled correctly, 1099 reporting for subcontracted operatives, and Texas licensing costs that many preparers miss entirely, a general-purpose tax preparer simply does not know where to look. You need a CPA who understands how investigation work actually generates revenue and expenses.

At AG Freideman, we provide tax preparation, bookkeeping, and year-round tax planning for private investigators across Dallas, Plano, Frisco, Richardson, and the entire DFW area. Al Freideman is a licensed CPA with over 30 years of experience, and he handles every PI client personally. No hand-offs to junior staff. No generic returns that leave deductions on the table.

Surveillance Vehicle and Equipment Deductions: What the IRS Actually Allows

Your surveillance vehicle is one of the largest deductible expenses in your practice, but it is also one of the most audit-prone line items on any PI’s return. The IRS requires strict substantiation under IRC Section 274(d), meaning you need a contemporaneous log of business miles, dates, destinations, and business purpose for every trip. Without that documentation, the entire deduction can be disallowed.

For the 2026 tax year, the IRS standard mileage rate is 70 cents per mile for business use. Many investigators drive 25,000 to 40,000 business miles per year on surveillance, skip traces, and process service runs. At 30,000 miles, that is a $21,000 deduction, but only if you can prove every mile. Alternatively, you may deduct actual expenses (fuel, insurance, maintenance, depreciation) proportional to business use percentage. We analyze both methods for every PI client and recommend whichever produces the larger write-off.

Beyond vehicles, investigators often overlook deductions for GPS tracking devices, covert cameras, body-worn recording equipment, dash cameras, and specialized software subscriptions for database searches and background checks. Under IRS Section 179, qualifying equipment purchased and placed in service during 2026 can be expensed immediately rather than depreciated over multiple years, up to the current $1,250,000 limit. We make sure every piece of gear you buy gets categorized and deducted correctly.

How Should Private Investigators Handle Client Retainer Funds?

Client retainers create a bookkeeping problem that many PIs handle incorrectly: they deposit retainer funds into their operating account and treat the entire amount as income the moment it arrives. Under accrual-basis and even most cash-basis scenarios, a retainer is not earned income until you perform the work. Misclassifying retainers inflates your taxable income and can result in overpaying thousands of dollars in self-employment tax (15.3% on the first $168,600 of net earnings for 2026).

The correct approach is to deposit unearned retainers into a separate trust or escrow account, then transfer funds to your operating account only as hours are worked and billed against the retainer. This is not just a tax best practice. Texas Business and Commerce Code provisions and your PI licensing obligations may require segregated handling of client funds, particularly when working attorney-referred cases where the retainer originates from an IOLTA account.

Our monthly bookkeeping service ($300 to $600 per month) sets up proper retainer tracking in QuickBooks so every dollar is categorized correctly, and your books always reflect actual earned revenue.

1099 Reporting for Subcontracted Operatives

Most PI practices in Dallas subcontract work to other licensed investigators for overflow cases, multi-operative surveillance, or out-of-area assignments. Every subcontractor you pay $600 or more during the tax year must receive a 1099-NEC, filed with the IRS by January 31 of the following year. Late or missing 1099s trigger penalties of $60 to $330 per form depending on how late you file, and intentional disregard penalties can reach $660 per form with no annual cap.

Before you pay any subcontractor, you need a completed W-9 on file. We see PI clients every year who paid operatives in cash or via Zelle without collecting a W-9 first, then scramble in January trying to get tax ID numbers from people who have moved on. We help you build a subcontractor onboarding process at the start of the engagement so you are never chasing paperwork at filing time.

If you are paying subcontractors regularly and your gross revenue exceeds $250,000, we often recommend evaluating whether an LLC or S-Corp election could reduce your overall tax burden. An S-Corp structure can save PI practice owners thousands in self-employment tax by splitting income between a reasonable salary and distributions. Our tax planning sessions (starting at $197) walk through the exact breakeven point for your situation.

Texas Licensing Fees and State Compliance Costs

Texas private investigators are licensed through the Texas Department of Public Safety, Private Security Bureau. Your initial license fee, renewal fees, continuing education costs, and any required insurance premiums are all deductible business expenses. If you hold multiple license classifications (such as investigations company license, individual PI license, or security consultant registration), each fee is deductible in the year paid.

Beyond licensing, every Texas PI operating as an LLC or corporation must file an annual Texas Franchise Tax report with the Texas Comptroller. For 2026, businesses with total revenue at or below $2.47 million owe no franchise tax but must still file the Public Information Report. Missing this filing can result in forfeiture of your entity’s good standing, which can jeopardize your PI license. We handle franchise tax filings ($250 to $500) so your entity stays compliant year after year.

Private Investigator Tax Mistakes We Fix

• Failing to separate personal and business vehicle use: Claiming 100% business use on a vehicle you also drive personally is an audit red flag. We calculate your actual business-use percentage and document it properly.
• Reporting retainers as income when received: This overstates your revenue and inflates your self-employment tax bill. We reclassify retainers as deferred revenue until earned.
• Missing the 1099-NEC filing deadline for subcontracted investigators: Every operative paid $600 or more needs a 1099 filed by January 31. We track payments throughout the year so nothing is missed.
• Not deducting home office expenses for PI practices run from home: Many investigators operate from a home office between field assignments. If you use a dedicated space regularly and exclusively for business, the simplified method allows a $5 per square foot deduction up to 300 square feet ($1,500). The regular method often yields more. We calculate both.
• Ignoring quarterly estimated tax payments: PIs who are self-employed or S-Corp owners must make estimated payments by April 15, June 15, September 15, and January 15. Underpayment triggers IRS penalties. We calculate your quarterly amounts so you are never surprised.