What is the burden rate?

The burden rate is the additional cost applied to direct labor to account for indirect costs, such as benefits, payroll taxes, overhead, and other expenses associated with employing staff. For professional service firms, the burden rate transforms base salary into a fully loaded cost. A typical burden rate ranges from 25% to 50% of base salary, depending on benefits, the overhead allocation method, and the firm's structure.

Key characteristics

• Additional cost percentage applied to direct labor

• Includes benefits, taxes, and overhead allocation

• Transforms base salary to fully loaded cost

• Typical range: 25% to 50% of base salary

• Should be calculated and updated annually

• Essential for accurate project costing and pricing

Why it matters for professional service firms

Burden rate captures the true cost of labor beyond salary. An employee earning $80K with 40% burden rate actually costs $112K. Pricing based on $80K ignores $32K in real costs, leading to systematic underpricing. Professional service firms should calculate burden rates by employee category and apply them consistently in project costing. Accurate burden rates enable realistic pricing and profitability analysis.

Real-world example

David's firm priced projects using salary costs without burden. Burden rate analysis: average consultant salary $75K, benefits $15K (20%), employer taxes $5.7K (7.6%), allocated overhead $18.8K (25%). Total burden: $39.5K (53% of salary). Fully loaded cost: $114.5K versus $75K salary assumption. Projects priced at 2x salary ($150K) yielded only 31% margin on true cost, not the assumed 50%. Repricing with accurate burden rates improved margins to target levels without any operational changes.