The True Cost of Building an In-House IT Team

Salary Benchmarks: Chicago IT Roles (April 2026)

The figures below reflect market-rate base salaries for IT professionals at professional services firms in Chicago. Professional services environments — law firms in particular — typically command a 5–10% salary premium over cross-industry averages, driven by heightened data security requirements, client confidentiality obligations, and the need for familiarity with legal practice management software.

The Benefits Burden: Adding 30–40% to Every Salary

Base salary is only part of what an employer pays. Mandatory and standard benefits add a substantial layer on top — one that is often underestimated in initial budget planning.

BLS Midwest employer data (December 2025) puts total benefits costs at an average of $13.26 per hour worked, representing 30.7% of total compensation costs. The three largest components are insurance ($3.56/hr), paid leave ($3.10/hr), and legally required benefits ($3.13/hr). ^[21] BLS Employer Costs for Employee Compensation, Regions View source ↗

The Cost of Hiring: Before Day One

Recruiting qualified IT professionals — particularly in a competitive market like Chicago — carries direct and indirect costs that are easy to overlook. These costs are incurred before the employee has been productive for even a single day.

Typical hiring cost components include:

• Job advertising: $100 – $500 per posting
• Background & pre-employment screening: $50 – $200 per candidate
• Recruiter or agency fees: 15–25% of first-year salary (contingency search); 30–35% (retained executive search) ^[27] LiftHCM HR Outsourcing & Recruiter Fee Guidance View source ↗
• Onboarding (equipment, licensing, training): $1,000 – $5,000
• Internal HR and manager time: $1,500 – $6,000 in soft costs

Turnover: The Hidden Multiplier

Hiring costs are not a one-time event. IT professionals, particularly at the mid-to-senior level, turn over at meaningful rates. When a role turns over, the firm absorbs the full cost of recruiting and onboarding again — plus a period of reduced productivity during the vacancy and ramp-up period.

First-Year Total Cost of Employment

The table below combines base salary, estimated benefits (35%), and one-time hiring costs to show the true first-year cost of each role. In subsequent years, the hiring cost is not repeated — but turnover risk remains.

Benefits estimated at 35% of base salary, consistent with BLS Midwest employer cost data. ^[21] BLS Employer Costs for Employee Compensation, Regions View source ↗ Hiring costs use midpoints from the ranges above.

Additional Considerations

Beyond compensation, building an internal IT function carries several categories of cost that do not appear on any payroll report:

• Software and licensing: IT infrastructure requires endpoint management, security, monitoring, backup, and collaboration platforms — licenses that the in-house team will need to procure and manage
• Hardware and refresh cycles: Workstations, servers, networking equipment, and mobile devices require capital investment and periodic replacement
• Training and certifications: Keeping IT staff current with evolving security threats, cloud platforms, and compliance requirements demands ongoing investment in professional development
• Coverage gaps: A small in-house team cannot realistically provide after-hours, weekend, or holiday support without overtime costs or additional headcount
• Management and coordination: IT staff must be managed, reviewed, and supervised — adding time to firm leadership or operations staff who may not have technical backgrounds

Want to Talk Through the Numbers?

DP3 provides disciplined managed IT services and vCIO strategic advisory for law firms and professional services organizations in Chicago and New York. If you’re weighing the build-vs-buy decision for your IT function, we’re happy to walk through the comparison with you — no pitch, just a clear-eyed look at the numbers.

References

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20. [20] BLS, "Chicago Metro Compensation Costs, December 2025," 2026. Link
21. [21] BLS, "Employer Costs for Employee Compensation, Regions," 2025. Link
22. [22] Selerix, "Average Cost of Benefits per Employee (2026)," 2026. Link
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26. [26] Staffing Support, "What It Really Costs to Recruit and Hire," 2026. Link
27. [27] LiftHCM, "HR Outsourcing & Recruiter Fee Guidance," 2025. Link