What can a CRE broker deduct?
Any expense that is ordinary and necessary for your brokerage business: marketing and client development, licensing and MLS/data subscriptions, E&O insurance, business vehicle use, a qualifying home office, professional services, technology, and business meals at 50%. The bigger wins usually aren't in finding exotic deductions ā they're in capturing the ordinary ones completely, documenting them properly, and pairing them with structural moves like retirement contributions and the S Corp election.
The standard: ordinary and necessary
The tax code's test for a business deduction is simple to state: the expense must be ordinary (common in your trade) and necessary (helpful and appropriate for the business). For a commercial real estate broker, that covers a wide and genuinely useful territory ā wider than most brokers actually claim.
The core deduction categories for CRE brokers
- Marketing and client development. Signage, digital advertising, listing marketing packages, drone photography, your website, CRM software, and closing gifts (gift deductions are capped at a small per-recipient amount).
- Licensing, dues, and data. State license renewals, association dues, MLS fees, and the data subscriptions that dominate CRE ā CoStar, LoopNet, Crexi, Reonomy and similar platforms are fully deductible business tools.
- Insurance. Errors & omissions coverage, general business liability, and ā handled through the right channel for S Corp owners ā health insurance premiums.
- Vehicle use. Property tours and client meetings generate real business mileage, deducted via the standard mileage rate or actual expenses with depreciation. This category is big enough that it gets its own analysis before large purchases.
- Home office. A space used regularly and exclusively for business supports a deduction ā and importantly, a qualifying home office can convert some otherwise-commuting miles into business miles.
- Meals. Business meals with clients, prospects, or referral partners are generally 50% deductible. Entertainment ā the game tickets, the golf ā has not been deductible since 2018, even when clearly business-motivated.
- Travel. Conferences (ICSC, SIOR, market tours), lodging, and airfare for bona fide business trips.
- Professional services. Tax preparation, planning, bookkeeping, legal fees, coaching, and assistant or transaction-coordinator costs.
- Technology and tools. Computers, phones (business-use share), software, e-signature platforms, and the endless subscription stack of a modern practice.
- Education. Continuing education, designations (CCIM, SIOR), and courses that maintain or improve skills in your existing business.
The structural deductions most brokers underuse
Line-item expenses matter, but the largest deductions available to a successful broker are usually structural: retirement plan contributions (a solo 401(k) can shelter tens of thousands per year), self-employed health insurance, and the QBI deduction of generally up to 20% of qualified business income. These interact with each other and with your entity structure, which is why deduction strategy and entity strategy are really one conversation ā the one we run inside S Corp Management.
What doesn't fly
- Ordinary clothing ā suits aren't deductible, no matter how client-facing the job.
- Commuting ā home to a regular office and back is personal, always.
- Entertainment ā not deductible under current law, even with clients.
- The personal share of mixed-use items ā phone, vehicle, and home internet are deductible only to the business-use percentage you can support.
Documentation is the deduction
An unclaimed deduction costs you money once; an unsupported one can cost more later. Separate business bank and card accounts, clean bookkeeping, a mileage log, and receipts for anything significant turn gray areas into defensible positions. Most of the "missed deduction" problem in broker returns isn't ignorance of the rules ā it's expenses scattered across personal accounts that never make it to the return.
