Hourly rates, deposition fees, retainer ranges, and trial costs for expert witnesses across 100+ litigation specialties — the independent reference used by attorneys nationwide.
Select a category to see typical fee ranges and what drives costs in each area.
Expert witnesses charge in several ways depending on the nature of their engagement. Understanding the fee structure before you retain an expert helps you budget accurately and avoid surprises.
The base rate covers time spent reviewing records, conducting research, preparing opinions, drafting reports, and communicating with counsel. Hourly rates vary enormously by specialty — from $150/hr for some vocational rehabilitation experts to $1,000+/hr for top subspecialty surgeons and economists at major consulting firms.
Most experts charge a premium rate for deposition testimony — typically 10–25% above their standard hourly rate. Some charge a flat half-day or full-day rate regardless of how long the deposition actually runs. Confirm deposition billing methodology before signing an engagement letter.
Trial testimony commands the highest rates, often billed as a daily flat fee rather than hourly. Medical subspecialists frequently charge $5,000–$10,000 per day of trial testimony; financial experts at major consulting firms may charge $8,000–$15,000/day. Budget for waiting time — experts often charge for standby time when proceedings run long.
Most expert witnesses require an upfront retainer before beginning work. Retainers are billed against time worked; unused amounts are typically refunded. Retainer size reflects anticipated engagement scope — a simple deposition-only engagement may require $3,000–$5,000, while a complex document-intensive matter may require $15,000–$25,000.
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