Maximizing Section 179 Deductions for Architects & Design Firms

Every purchase is a tax decision. Are you approaching these decisions strategically?

By Martin E. Prendergast, MBA
Gray, Gray & Gray, LLP

What You’ll Learn

• How Section 179 works and why it matters more than most architecture and design firm owners realize
• Which categories of equipment, software, and property qualify, including some that may surprise you
• Why every purchase your firm makes should be evaluated for its Section 179 potential
• How the deduction phases out for high-capital years and how to plan around the limits
• The interaction between Section 179 and bonus depreciation, and when to use each
• How Gray, Gray & Gray helps architecture and design firms build a year-round purchase strategy that maximizes every deduction

Section 179: More Than a Line Item

Most architecture and design firm owners are aware of Section 179, but few use it as a strategic planning tool. This deduction allows businesses to immediately expense the full cost of qualifying property in the year it is placed in service, rather than depreciating it over several years. For a well-managed firm, this can yield significant tax savings in a single year.

However, Section 179 is not limited to major capital investments such as new workstations or firm-wide CAD system upgrades. The law covers a broad and sometimes unexpected range of purchases. If your firm is not evaluating every significant expenditure for Section 179 eligibility, it is likely missing valuable deductions.

This guide is for managing principals, firm administrators, and financial managers seeking to move from passive compliance to active tax planning. The strategies outlined reflect how Gray, Gray & Gray, LLP assists architecture and design firms in structuring spending decisions for maximum tax efficiency.

How Section 179 Works

Following the enactment of the One Big Beautiful Bill Act, Section 179 deduction limits were significantly expanded. For tax years beginning in 2026, businesses may expense up to $2.5 million of qualifying property under Section 179, with the deduction phasing out dollar-for-dollar once total qualifying purchases exceed $4 million. These thresholds will continue to be indexed for inflation going forward. For most architecture and design firms, the phase-out threshold is rarely a concern; the deduction is available in full.

The process is straightforward. Your firm purchases a qualifying asset, places it in service during the tax year, and elects to expense it rather than depreciate it over time. Instead of recovering the cost over several years, the full amount is deducted in the current year, resulting in an immediate reduction in taxable income.

One important constraint is that the Section 179 deduction cannot exceed your firm’s taxable income for the year. If your firm has a breakeven or loss year, the deduction is limited, but any unused amount can be carried forward. This underscores the importance of year-end planning, as understanding your projected income before December 31 allows you to optimize purchases for maximum benefit.

A Common Scenario

A 15-person architecture firm in Massachusetts projects $280,000 in taxable income for the year. In November, the firm purchases $95,000 in new workstations, monitors, and design software licenses. By electing Section 179, the firm expensed the entire $95,000 in the current year rather than depreciating it over 5 to 7 years. At a combined federal and state effective rate of approximately 35 percent, this deduction results in about $36,000 in immediate tax savings, thereby retaining cash within the firm.

What Qualifies: Broader Than You Think

Many firms underestimate the scope of ‘qualifying property.’ Section 179 covers tangible personal property used in business, certain listed property, and, since the Tax Cuts and Jobs Act of 2017, qualified improvement property and specific building improvements. The following outlines what this means for architecture and design firms.

• Technology and Equipment

This is the most familiar category. Computers, monitors, plotters, large-format printers, servers, tablets, rendering workstations, and networking equipment all qualify. Phone systems, video conferencing hardware, and specialized A/V equipment used in client presentations are also eligible. Generally, if the equipment is used for business, it requires power. Sometimes, we overlook that peripherals and accessories also qualify. Items such as a $600 drawing tablet, a $450 second monitor, or a $300 docking station may not seem significant individually, but across a team these purchases add up, and each is eligible for Section 179.

• Software

Off-the-shelf software purchased for business use qualifies under Section 179. This includes BIM platform licenses, rendering software, project management tools, accounting systems, and design applications. Subscription-based software-as-a-service (SaaS) is generally treated differently, as those costs are typically deducted as ordinary business expenses. However, perpetual licenses and installed software are eligible for Section 179. Many firms continue to evaluate the shift from perpetual to subscription licensing. There are trade-offs on both sides, and your tax advisor should be part of that conversation before the procurement decision is finalized.

• Office Furniture and Fixtures

Desks, chairs, drafting tables, plan tables, shelving, modular office systems, conference room furniture, and similar items all qualify as tangible personal property. The cumulative effect can be substantial. For example, replacing workstations for a dozen staff members could result in $40,000 to $80,000 in Section 179-eligible spending, fully expensed in the year of purchase rather than depreciated over seven years.

• Vehicles Used for Business

Passenger automobiles and light trucks used for business purposes qualify for Section 179, subject to annual luxury auto limits that cap the deduction for passenger vehicles. Certain SUVs with a gross vehicle weight rating exceeding 6,000 pounds may qualify for enhanced expensing, although special Section 179 limitations continue to apply.  Firms whose principals or project managers use personal vehicles for client visits and site travel should evaluate these options at the time of purchase. Adjustments for personal and commuting usage of company vehicles must still be reflected to capture non-business portions.

• Qualified Improvement Property

This category often generates the most overlooked deductions for established firms. Qualified improvement property (QIP) includes improvements made to the interior of a nonresidential building that the firm owns or leases. Lighting upgrades, certain HVAC system improvements, wall designs, flooring, and certain other interior improvements qualify. Since the TCJA correction in 2020, QIP has a 15-year depreciation life and is eligible for 100 percent bonus depreciation, which operates similarly to Section 179 for most planning purposes.

If your firm has renovated its studio space, upgraded lighting for design review areas, or made interior improvements to leased or owned offices in recent years, these expenditures may qualify for accelerated treatment. Many firms have expensed items such as repairs without fully evaluating their deductibility.

The Small-Dollar Mindset Shift

The key takeaway is not about a specific asset category, but about your firm’s approach to spending. Many firms focus Section 179 analysis on large, obvious capital purchases, such as a $50,000 server upgrade or a firm-wide software migration. While this is logical, it can overlook significant opportunities.

For example, a 25-person architecture firm may spend, over a typical year, on items such as upgraded monitors, replacement drafting chairs, new conference room furniture, reception area updates, a new presentation display system, and iPads for site visits. Individually, these may not seem like capital investments, but collectively, they can total $60,000 or more in Section 179-eligible spending that warrants careful analysis.

The recommended practice is to evaluate every significant purchase before it is made, not only those that appear to be capital expenditures.

A Less Obvious Scenario

A design firm in Providence spends $12,000 on new conference room furniture, $8,500 on upgraded lighting for the model shop, $6,200 on a new reception display and signage system, and $4,800 on replacement drawing chairs during the year. Individually, these purchases did not prompt a discussion of capital investment. In aggregate, all $31,500 qualifies for Section 179 treatment, generating approximately $12,000 in tax savings at a 38 percent combined rate from purchases the firm would have made regardless.

Section 179 vs. Bonus Depreciation: Knowing Which to Use

Since the Tax Cuts and Jobs Act of 2017, bonus depreciation has become an equally effective and, in some cases, more flexible tool. Bonus depreciation allows 100 percent first-year expensing of qualifying new and used property, with no dollar cap or taxable income limitation. The One Big Beautiful Bill Act also restored and extended 100 percent bonus depreciation for qualifying property placed in service after January 19, 2025. This effectively reverses the previously scheduled phase-down of bonus depreciation and reestablishes full first-year expensing for many capital investments.

For many architecture and design firms, the planning question is no longer whether accelerated depreciation is available, but which combination of Section 179 and bonus depreciation produces the most favorable tax outcome. Section 179 remains subject to taxable income limitations and can be selectively applied to specific assets. Bonus depreciation, by contrast, is generally not limited by taxable income and can create or increase net operating losses.

The optimal strategy depends on your firm’s projected income, the mix of assets being placed in service, and expectations for future tax rates. These variables interact in ways that benefit from proactive planning. Firms that consult with their tax advisors about upcoming capital spending before year-end are consistently better positioned than those that review asset additions after the year has closed.

Building a Year-Round Purchase Strategy

Firms that gain the most value from Section 179 are not necessarily those with the highest spending, but those with the most effective planning. A year-round purchase strategy involves three key disciplines that, while straightforward, are rarely implemented consistently.

• Front-Load Your Tax Thinking

Section 179 is elected on the tax return, but the decisions that determine its value occur throughout the year. If your firm is considering a significant equipment purchase, studio renovation, or technology upgrade, the optimal time to assess the tax impact is before finalizing the purchase. Understanding that a $75,000 purchase can generate $28,500 in immediate tax savings can influence financing, timing, and budgeting decisions.

• Track Every Qualifying Purchase

Most firms track major capital expenditures, but few have a systematic approach for capturing smaller qualifying purchases throughout the year. Implementing an internal protocol to flag any business property purchase over a set threshold, such as $500, for Section 179 review ensures all eligible items are considered. The administrative effort is minimal, while the cumulative tax benefit can be significant.

• Coordinate with Your Year-End Income Projection

Because Section 179 is limited by taxable income, the most effective planning occurs in the fall, when your firm’s year-end position becomes clearer. If income is higher than projected, accelerating planned purchases into the current year can increase your deduction. If income is lower, bonus depreciation may be more appropriate. These adjustments require real-time financial visibility and proactive engagement with your advisor before year-end.

A Planning Scenario

A 30-person architecture firm in Connecticut reviews its financials in October and projects $420,000 in taxable income for the year, higher than expected due to several large project completions. The firm had planned to purchase new rendering workstations and update its conference rooms in the first quarter of the following year. By accelerating these purchases to December, the firm places $110,000 in qualifying property in service in the current year, reducing taxable income by $110,000 and saving approximately $42,000 in taxes. The purchases were planned regardless; only the timing changed.

The Return of Long-Term Expensing Certainty

One of the most important impacts of the One Big Beautiful Bill Act is the return of greater predictability around capital expensing. In recent years, firms have often faced uncertainty about whether bonus depreciation would continue to phase down or whether Congress would intervene. The restoration of 100 percent bonus depreciation, combined with substantially larger Section 179 limits, gives architecture and design firms more confidence when planning multi-year technology upgrades, office renovations, and equipment investments.         

For firms considering significant investments in BIM systems, rendering hardware, studio modernization, or office improvements, the ability to immediately expense a larger portion of those costs can materially improve after-tax cash flow and investment timing decisions.

Why Industry Knowledge Matters

Architecture and design firms have a spending profile that differs significantly from other professional services businesses. The combination of technology, specialized equipment, software licensing, furniture, and periodic studio improvements creates a broad Section 179 opportunity, provided you know where to identify it.

Gray, Gray & Gray has decades of experience working with architecture, engineering, and design firms. We understand how firms make capital decisions, how project cycles affect income timing, and which asset categories are most relevant to AED practices. This expertise allows us to identify deductions that generalists may overlook and to highlight planning opportunities specific to how architecture firms operate.

Our tax practice for architecture and design clients is integrated with our broader advisory services. Section 179 planning is connected to entity structure, owner compensation, retirement plan contributions, and other factors that affect your overall tax position. A coordinated strategy is more effective than making isolated decisions.

The Cost of a Passive Approach

Firms that treat Section 179 as a passive compliance item, handled only at filing time with available information, consistently underperform their potential. While this approach is not incorrect, it often results in missed opportunities for additional deductions.

With the expanded Section 179 limits and restored 100 percent bonus depreciation under the One Big Beautiful Bill Act, the financial impact of passive tax planning has become even more significant. The difference between a passive and active approach may not be significant in a single year. However, over five years, for a firm spending $100,000 to $300,000 annually on qualifying property, the cumulative impact of strategic timing, comprehensive asset tracking, and coordinated bonus depreciation planning can easily reach six figures. This is a measurable outcome.

Gray, Gray & Gray is ready to help your firm transition from passive compliance to active planning. We typically begin with a review of your recent asset additions and spending patterns, which often reveals opportunities that firms have not previously identified. We welcome the opportunity to demonstrate how a more strategic approach can benefit your firm.