Tax Deductions for New Architecture Firms You Are Probably Missing

Starting an architecture firm is expensive, and every dollar counts. The IRS allows you to deduct ordinary and necessary business expenses, but many new firm owners miss deductions that could save them thousands. This guide covers the most commonly overlooked deductions for architecture firms in 2026, with realistic figures and steps you can take this week.

Software and Subscription Deductions

Architecture relies on expensive software. You can deduct the full cost of software with a useful life of one year or less, or depreciate longer-lived software. In 2026, the Section 179 deduction allows you to expense up to $1,220,000 of qualifying property, including software, in the year you place it in service. This means you can deduct the full cost of AutoCAD, Revit, Adobe Creative Cloud, and project management tools like Trello or Asana.

• AutoCAD: $1,865/year for a single-user subscription
• Revit: $2,545/year
• Adobe Creative Cloud: $54.99/month
• Project management: $10-$30/user/month

Action step: Review your software subscriptions and ensure you are expensing them under Section 179. Keep receipts and a list of all subscriptions with dates.

Home Office Deduction

If you work from home, even part-time, you may qualify for the home office deduction. The IRS offers two methods: simplified ($5 per square foot, up to 300 square feet, max $1,500) or actual expenses (percentage of mortgage interest, rent, utilities, insurance, and repairs). For architects, the actual method often yields more, especially if you have a dedicated studio space.

• Simplified method: $5/sq ft, max $1,500
• Actual method: Calculate the percentage of your home used exclusively and regularly for business. For example, if your office is 200 sq ft in a 2,000 sq ft home, that’s 10% of your home expenses.

Action step: Measure your home office space and calculate both methods. Use the one that gives you the larger deduction. Ensure the space is used exclusively for business.

Professional Fees and Continuing Education

You can deduct fees for professional services like accountants, lawyers, and consultants. Also, continuing education costs, including courses, seminars, and conferences, are deductible as business expenses. For architects, this includes AIA membership dues, licensing exam fees, and continuing education units (CEUs).

• AIA membership: $200-$500/year
• Licensing exam: $1,000-$2,000 for all divisions
• CEU courses: $50-$500 per course

Action step: Track all professional fees and education expenses. Deduct them on Schedule C (or Form 1120-S for S-corps).

Vehicle Expenses

If you use your car for business, you can deduct either the standard mileage rate (67 cents per mile in 2026) or actual expenses (gas, maintenance, insurance, depreciation). For architects, site visits and client meetings are common. Keep a mileage log with dates, destinations, and purposes.

• Standard mileage: $0.67/mile
• Actual expenses: Track all vehicle costs and multiply by business use percentage

Action step: Start a mileage log today. Use an app like MileIQ or a simple spreadsheet. If you use the actual method, keep all receipts.

Marketing and Advertising

Marketing costs are fully deductible. This includes website design and hosting, business cards, brochures, digital ads, and even the cost of a portfolio website. For new firms, this is often a significant expense.

• Website design: $2,000-$10,000 one-time
• Hosting: $100-$300/year
• Business cards: $50-$200
• Digital ads: $500-$5,000/month

Action step: Gather all marketing receipts. Deduct them as advertising expenses.

Office Supplies and Equipment

Office supplies like paper, pens, and printer ink are deductible. Equipment like computers, printers, and drafting tables can be expensed under Section 179 or depreciated. In 2026, the de minimis safe harbor allows you to deduct items costing $2,500 or less per invoice.

• Computer: $1,000-$3,000
• Printer: $300-$1,000
• Drafting table: $500-$2,000

Action step: Review your purchases. If you bought equipment, consider Section 179 to deduct the full cost this year.

Insurance Premiums

Professional liability insurance (errors and omissions) is a must for architects and is deductible. Also deductible: general liability, health insurance for yourself and employees, and business interruption insurance.

• Professional liability: $2,000-$10,000/year for new firms
• General liability: $500-$2,000/year
• Health insurance: Varies, but premiums are 100% deductible for self-employed

Action step: Ensure you have insurance and deduct premiums. If you’re self-employed, deduct health insurance on Form 1040.

Travel and Meals

Travel for business, including flights, hotels, and rental cars, is deductible. Meals during business travel are 50% deductible. Also, meals with clients or prospects are 50% deductible if business is discussed.

• Business travel: Deduct all transportation and lodging
• Meals: 50% of the cost

Action step: Keep a travel log and all receipts. For meals, note the business purpose and who was present.

Retirement Contributions

Contributions to retirement plans like SEP-IRA or Solo 401(k) are deductible. In 2026, the SEP-IRA contribution limit is 25% of net self-employment income, up to $70,000. Solo 401(k) allows employee deferrals up to $23,500 plus profit-sharing.

• SEP-IRA: Up to 25% of net income, max $70,000
• Solo 401(k): Employee deferral $23,500, plus employer contribution

Action step: Set up a retirement plan before year-end to reduce taxable income.

FAQ

Can I deduct the cost of a home office if I also have an office outside the home? Yes, if you use the home office exclusively and regularly for business, even if you also have another office. The deduction is limited to the business use percentage.

What records do I need to support my deductions? Keep receipts, bank statements, credit card statements, and a mileage log. For meals and travel, note the business purpose and attendees.

Is the Section 179 deduction available for software? Yes, software is eligible for Section 179 if it is off-the-shelf and placed in service in the tax year.

Can I deduct the cost of a business meal with a client? Yes, you can deduct 50% of the cost if business is discussed. Keep a record of the date, amount, and business purpose.

Related guides

• 7 Mistakes New Architecture Firms Make in Their First Year
• S-Corp vs LLC for New Architecture Firms: Which Saves More on Taxes?
• Tax Write-Offs for New Architecture Firms: The Complete List

The bottom line

New architecture firms often miss deductions because they don’t track expenses meticulously. Start today by organizing your receipts, setting up a mileage log, and reviewing your software and equipment purchases. Consult a CPA who works with architects to ensure you’re maximizing your deductions legally. Every dollar you save is a dollar you can reinvest in your firm’s growth.