No agency publishes a single hourly rate for court interpreting in California, and any that did would be misleading. What does exist is a published structure: half-day and full-day units, a market-rate floor, defined travel treatment, and a cancellation window. Understanding that structure explains most of what appears on an interpreter invoice.
This article works from the public fee schedules rather than from any one provider's pricing, so the figures below are verifiable and are not an AMS rate card. Rates for a specific assignment depend on language, location, certification level, duration, and notice, and are quoted in writing.
The one schedule California actually publishes
The most detailed public interpreter fee schedule in California is not in the court system at all. It is in the workers compensation regulations. Title 8 of the California Code of Regulations, section 9795.3, sets fees for interpreter services in that system, and it is worth reading even if your matter has nothing to do with workers compensation, because it is the clearest published statement of how interpreter time is actually priced. It became operative on August 13, 2013.
For appeals board hearings, arbitrations, and depositions, the regulation directs that fees be billed and paid at the greater of two things: the rate for one half day or one full day set out in the superior court fee schedule for the county where the service was provided, or the market rate. Two features of that sentence do a lot of work. First, the unit of purchase is a block of time, not an hour. Second, the published schedule operates as a floor rather than a ceiling, because the market rate can exceed it and the regulation then follows the market rate.
Half days, full days, and why hourly billing is rare
Interpreting is sold in blocks because it is staffed in blocks. An interpreter who accepts a morning deposition in one county cannot accept an afternoon assignment two counties away, so the half day is the real unit of supply. The workers compensation schedule reflects this by pricing from county superior court half-day and full-day rates rather than from an hourly figure.
The schedule also addresses what happens when a proceeding runs long. Services over eight hours are paid at one eighth of the full day rate for each hour of service beyond eight. That is a useful benchmark when you are reviewing an overtime line on an invoice from any source, because it establishes a published convention for how the industry converts a long day into additional charges.
One caution. Section 9795.3 also sets a rate for medical appointments and medical-legal examinations of $11.25 per quarter hour or portion thereof, with a minimum payment of two hours, or the market rate, whichever is greater. Those figures are the workers compensation schedule, not a general market rate and not a statement of any provider's billing practice. Do not carry them across to civil litigation work.
Travel and mileage
Travel is the line item that most often surprises a first-time buyer, and the public schedule shows why it exists. Under section 9795.3, travel time is compensated at $5.00 per quarter hour or portion thereof, and mileage is payable only where the distance exceeds 25 miles, at the rate adopted by the Director of the Department of Personnel Administration under Government Code section 19820.
The 25-mile threshold captures a genuine economic fact rather than an arbitrary fee. A certified interpreter in a designated language may be available within a metropolitan area at no travel cost, while the same language in a rural venue may require someone to drive two hours each way. This is also why venue affects price as much as language does, and why coverage in Los Angeles or the Bay Area tends to price differently from coverage in a Central Valley county.
Cancellation
Section 9795.3 provides that unless the interpreter is notified of a cancellation at least 24 hours before the service is to be provided, the interpreter is paid no less than the minimum fee. A 24-hour window is the published convention across the industry for the same reason the half day is: once an interpreter has committed a block, a late cancellation destroys the block rather than shortening it.
When you compare vendors, compare the cancellation terms as carefully as the rate. A lower headline rate with a 48-hour cancellation window can cost more over a year of litigation than a higher rate with a 24-hour window, because depositions move.
What moves a rate outside the schedule
The published schedules describe the shape of the cost. The level is set by the assignment. In descending order of impact:
- Language scarcity in that venue. Spanish in a major metropolitan county sits at one end of the range. An indigenous Mesoamerican language, or a language with a handful of qualified interpreters statewide, sits at the other.
- Credential tier. Certified interpreters in Judicial Council designated languages, and interpreters holding federal certification, price above interpreters qualified by other routes.
- Duration and teaming. Long proceedings require two interpreters working as a team to keep accuracy from degrading, which changes the staffing cost rather than the hourly rate.
- Mode. Simultaneous interpreting for a party, consecutive rendering of sworn testimony, and sight translation of exhibits are different tasks and are not interchangeable.
- Notice. Short-notice and after-hours requests are part of the standard offering at AMS rather than premium-priced exceptions, but availability in a given language and venue still depends on who is free.
- Venue and travel, as above.
The teaming point deserves emphasis because it is the one most often mistaken for padding. Our article on interpreter teams for long proceedings sets out why a second interpreter on a long day is an accuracy measure rather than an upsell.
The credential tier has a financial consequence beyond the invoice
This is the part of interpreter cost that almost never appears in a pricing discussion, and it can outweigh the rate difference entirely. In California, deposition interpreter fees can be recovered as costs by the prevailing party, but the cost statute allows the fees of a certified or registered interpreter specifically. Booking outside those tiers to save money on the invoice can therefore convert a recoverable cost into an unrecoverable one.
The full mechanism, including what a memorandum of costs should reflect, is set out in our article on who pays for the deposition interpreter and when the fee is recoverable.
Why the same language costs different amounts in different counties
Buyers often assume a language has a price. It has a price in a place. The workers compensation schedule encodes this by tying the benchmark to the superior court fee schedule for the county where the service was provided, rather than to a statewide figure. Supply of qualified interpreters is distributed unevenly across California, and it is distributed by language separately from population.
Spanish is the clearest case of depth. There are enough certified Spanish interpreters in the large metropolitan counties that scheduling is a matter of matching subject-matter experience to the proceeding. Move to a language with a thinner bench and the calculus inverts: the constraint is no longer which qualified interpreter is the best fit, but whether any qualified interpreter is available on that date within a workable travel radius. Price follows that constraint, and so does lead time.
This is also why a rate quoted for one matter is a poor predictor of the next. A Korean deposition in Los Angeles and a Korean deposition in a Central Valley county are the same language and materially different assignments. Our location pages set out where AMS holds depth, and the language pages cover the credential position language by language.
Charges that should make you ask a question
Most interpreter invoices are straightforward. A few line items are worth querying, not because they are always improper, but because they should have an explanation you can follow:
- A second interpreter on a short proceeding. Teaming is an accuracy measure for sustained simultaneous work, and it should be tied to duration or mode rather than applied by default.
- Travel billed from an office rather than from the interpreter's origin, where those differ materially.
- An overtime increment that does not match the increment quoted at booking.
- A cancellation charge inside a window that was never stated in writing.
- A credential premium for a tier you did not request and the proceeding did not require.
The remedy for all five is the same and it is preventive: get the billing unit, the increments, the travel origin, and the cancellation window in the written quote. A provider that will not put those in writing before the assignment is telling you something about how the invoice will look afterwards.
How to compare two quotes properly
Quotes in this industry are frequently not comparable on their face. Before choosing on price, normalise them:
- Confirm the billing unit and the hour boundary for a half day and a full day.
- Confirm how time beyond the block is charged, and at what increment.
- Confirm the cancellation window and what is payable inside it.
- Confirm whether travel and mileage are included, and from where.
- Confirm the credential tier being supplied, in writing, and the certification or registration number for the assigned interpreter.
- Confirm whether a second interpreter is included for a long proceeding, or billed separately.
The fifth item is the one that protects the cost recovery, and it is also the item a scheduler can verify independently against the Judicial Council's public list of current interpreters.
For reference, the Judicial Council maintains a separate policy governing payment to independent contractor interpreters retained by California trial courts, with an effective date of July 1, 2021. It sets standard half-day and full-day compensation for court-retained work. It is a useful benchmark for the shape of the market, though the rates a court pays its own contractors are not the rates a private party pays for a noticed deposition.
Sources
California Code of Regulations, title 8, section 9795.3, published by the California Department of Industrial Relations; Payment Policies for Independent Contractor Interpreters, Judicial Council of California Language Access Services, effective July 1, 2021; California Code of Civil Procedure section 1033.5. Verified against the primary sources in July 2026. Figures quoted are from the published workers compensation fee schedule and are not AMS rates.
AMS provides written quotes that state the credential tier, the billing unit, and the cancellation terms before you book. See our legal interpreting services or request a quote for a specific matter.