After a failed CSLB exam
One failed exam doesn’t void your application. The calendar does. Here are the retake rules, quoted from CSLB, PSI and the law, what your score report is telling you, and how to spend the next few weeks on the sections that cost you.
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License Ladder is independent study material, not affiliated with or endorsed by CSLB or PSI. The rules on this page are quoted or summarized from CSLB, PSI and the California Business and Professions Code, checked 22 September 2026. If a date or fee decides what you do next, confirm it with CSLB or in your PSI account.
Four rules decide your next move: the wait, the fee, the clock, and the cutoff. Each one below comes from CSLB, PSI or the statute, in their words where the exact words matter.
CSLB says that if you fail the Law and Business exam and/or your trade exam, “you must wait 21 calendar days to pay and reschedule your exam.” PSI’s bulletin says candidates who fail “are eligible to retake the examination after 21 calendar days as long as they are not past their void date.”
Calendar days means weekends and holidays count. After the wait, you choose from the dates PSI has open at the test site you pick, so your retake can land later than day 21.
CSLB, My Original Exam Application was Accepted; PSI candidate bulletin, Re-examination
You pay and reschedule with PSI, in your PSI account or by phone at (877) 392-6422. PSI’s bulletin lists one fee, labeled “EXAMINATION FEE,” at $51.43, and says: “The fee is for each registration, whether you are taking the examination for the first time or repeating it.” Its retake section calls it a “re-examination fee” that “is required and must be paid to PSI.”
Failed both exams? CSLB says “Each exam is a separate fee.” PSI’s registration fees are not refundable or transferable, and you forfeit the fee if you don’t cancel at least two days ahead, don’t show up, arrive after the start time, or don’t bring proper ID.
$51.43 is the amount in PSI’s Law and Business and General Building (B) bulletins as of 22 September 2026. Confirm it in your PSI account before you pay. CSLB Examinations FAQ; Cal. Bus. & Prof. Code §7137(a)(2) (the exam fee is paid directly to the organization that gives the exam)
The clock starts when CSLB accepts your application, not the day you filed it. The law voids an application when the applicant “has failed to achieve a passing grade in the qualifying examination within 18 months after the application has been deemed acceptable by the board.” CSLB puts it plainly: “All applications are given 18 months from the day they are accepted to pass the examination(s).”
Inside that window, PSI says “you may take the exam as many times as necessary.” Not sure when your 18 months started? PSI’s bulletin ties it to the day the Board deemed you eligible: “This is the date on the eligibility letter the Board sends to you.” You can also check your application status online with your Application Fee Number and the PIN from your acknowledgement letter.
Cal. Bus. & Prof. Code §7074(a)(1); CSLB Examinations FAQ; PSI candidate bulletin, Examination Scheduling Procedures
Because of the 21-day wait, an attempt taken close to your void date can be your last. CSLB: “If you took and failed your exam within three weeks of your 18-month void date, that was your last opportunity.”
If the 18 months run out, CSLB says “your application is considered void, and you will have to submit a new application with new fees.” The statute adds that a voided application “shall not be returned to the applicant.” There is one narrow exception for emergencies, covered below.
CSLB, My Original Exam Application was Accepted; CSLB Examinations FAQ; Cal. Bus. & Prof. Code §7074(c)
Hold on to the printed report you got before you left the test center. It is the closest thing you get to a review: you can’t see the questions afterward, and PSI won’t read you your score over the phone.
Copy each section name from your report with the number you got wrong next to it.
Rank by the count of wrong answers, not the percentage. The sections at the top are where you lost the most points.
Look up those sections in the outlines below. The topics listed under each one are your study list, in that order.
The day you can pay and reschedule (21 calendar days after your attempt) and your 18-month void date. Every study decision fits between them.
CSLB Examinations FAQ (overall score, section breakdown, no review of questions); CSLB, My Original Exam Application was Accepted (sections described in the study guide); PSI candidate bulletin, Examination Results
These are the sections and approximate weights CSLB publishes in its own study guides. Find the sections where you missed the most, then work the topics listed under them.
CSLB study guide 13E-LAW (03-2026), for exams scheduled on or after December 1, 2021
CSLB, Law and Business Study Guide (PDF) · what each section asks
CSLB study guide 13E-B (03-2026), for exams scheduled on or after January 1, 2025
CSLB marks every weight “*Percentages are approximate*.” PSI’s bulletins print the same sections and weights. Guides for every classification with a trade exam are on CSLB’s study guide page, in English and Spanish. Checked 22 September 2026.
You don’t need to start over. You need to win back the points you lost, starting where you lost the most.
Work every topic CSLB lists under the section where you missed the most, then move to the next one on your list. Keep reviewing the sections you did well on, because the retake covers every section again.
For Law and Business, CSLB calls the California Contractors License Law & Reference Book “the basic study reference,” and its study guide also lists EDD’s California Employer’s Guide (DE 44), IRS Publication 15 and the DIR Public Works Manual. The B guide lists the 2025 California codes (building, residential, electrical, plumbing, mechanical, energy, fire, green building) and Cal/OSHA’s safety orders. Match the book to the section you missed: payroll questions to DE 44 and Publication 15, public works to the Public Works Manual.
Both study guides describe a closed-book, multiple-choice exam with four choices and one BEST answer, and a calculator provided. CSLB gives you 3½ hours for each exam, and PSI shows the minutes remaining on screen. “There is no penalty for guessing,” so never leave a question blank. Do some of your practice timed and without notes.
Choose a date that gives you time to fix your weak sections but still falls more than three weeks before your void date, so one more miss wouldn’t be your last try. If you need to move it, cancel at least two days ahead or you lose the fee. Law and Business and General Building (B) are both offered in Spanish; if you read Spanish more easily, ask PSI or CSLB about taking the Spanish version when you reschedule.
Sources: CSLB, Studying for the Examination (reference book); CSLB Law and Business and General Building (B) study guides (resource lists, test policy, test strategy); CSLB, My Original Exam Application was Accepted (3½ hours per exam); PSI candidate bulletin (minutes remaining on screen; cancellation); CSLB Examinations FAQ (Spanish versions of 10 exams, including Law and Business and B). Checked 22 September 2026.
Email your name, application fee number and a description of the issue to exams@cslb.ca.gov. CSLB contacts PSI to investigate. Allow five to seven days for a response.
Email your name and application number to exams@cslb.ca.gov and ask for an Examination Appeals Form. CSLB responds by mail in two to four weeks. For your retake: CSLB lets you file a written protest or critique of any question after you finish and before you turn in your exam materials.
The statute: “The void date on an application may be extended up to 90 days or one examination may be rescheduled without a fee upon documented evidence by the applicant that the failure to complete the application process or to appear for an examination was due to a medical emergency or other circumstance beyond the control of the applicant.” It says may, and it takes documents. Ask CSLB.
CSLB Examinations FAQ (technical problems, appeals); CSLB, My Original Exam Application was Accepted (written protest); Cal. Bus. & Prof. Code §7074(b). Checked 22 September 2026.
License Ladder gives you printed flashcards plus practice questions, timed exams, study guides and a readiness score in the app, for a full year. Pick the package for the exam you failed.
Failed General Building (B), or both? The $149 bundle has both decks, Law & Business and General Building (B). $99 and $149 are launch prices; they go to $189 and $249 when the launch ends.