Who pays for an expert's deposition taken by the opposing party?

In federal court, Rule 26(b)(4)(E) generally requires the party taking the expert's deposition to pay the expert a reasonable fee for the deposition time — even though the other side retained the expert. Preparation time and report-writing usually remain with the retaining party, and state rules vary.

Can expert witness fees be recovered from the losing party?

Usually only in limited amounts. Under the default American rule, recoverable 'costs' for witnesses are capped at small statutory attendance fees unless a specific statute, contract, or court rule shifts full expert fees — as some state statutes and offer-of-judgment mechanisms do.

Can an expert witness work on contingency?

No. Contingent expert fees are widely prohibited by ethics rules and case law because tying the expert's pay to the outcome destroys the independence their testimony depends on. Experts are paid for their time at rates set in advance, win or lose.

Expert witness questions · Updated August 2026

Who Pays Expert Witness Fees?

Q: Who pays expert witness fees?

The party that retains the expert pays their fees — in practice, the law firm advances them as a case cost. Most experts require an up-front retainer (median around $2,000) and bill hourly for review, reports, deposition, and trial testimony.

By SwornIn · Informational only — not legal advice. Rules vary by jurisdiction.

Short answer: the party that retains the expert pays — in practice the law firm advances the fees as a case cost, starting with a retainer (median ~$2,000) and hourly billing after that. But three situations complicate the picture: opposing-party depositions, fee-shifting, and court-appointed experts.

The default: the retaining party pays

Experts bill the side that hired them — for record review, analysis, report writing, deposition, and trial time, at rates that in 2026 commonly run $300–$800/hr and above (see our full fee benchmarks by specialty). In contingency practices the firm typically advances expert costs and recoups them from any recovery; in hourly engagements the client pays as costs accrue. Either way, the expert's compensation is never contingent on the outcome — that arrangement is prohibited because it would destroy the independence that makes the testimony admissible and credible.

Exception 1: the other side's deposition time

In federal court, when opposing counsel deposes your expert, Rule 26(b)(4)(E) generally makes them pay the expert a reasonable fee for the deposition time itself. Courts split on preparation time. State rules vary — some mirror the federal approach, others leave each side bearing its own expert costs throughout.

Exception 2: fee-shifting

Under the American rule, the losing party ordinarily reimburses only trivial statutory witness costs — not actual expert fees. Full shifting happens only where a specific statute (some consumer, civil-rights, and malpractice regimes), a contract clause, or an offer-of-judgment rule provides for it. Budget as if you will bear your own expert costs; treat recovery as upside.

Exception 3: court-appointed and indigent-defense experts

Judges can appoint neutral experts (FRE 706), with compensation set by the court and charged to the parties in civil cases or public funds in criminal cases. Indigent criminal defendants are constitutionally entitled to expert assistance in some circumstances, paid from public funds.

What this means for each side

For firms: the retainer-plus-hourly structure means vetting quality is everything — you pay the same whether the expert survives a Daubert challenge or not. Know the exclusion risk before you spend: check your judge's tendency on expert challenges for free. For experts: get the retainer before starting work, put deposition-fee responsibility in your engagement letter, and never accept outcome-linked compensation of any kind.

On SwornIn, experts keep 100% of their rate. We never take a cut of expert fees — firms pay the platform, not the expert's invoice. See the pricing model →