- PSI Written Exam Fee: The $100 You'll Pay Per Attempt
- LARA Application and Licensing Fees
- Practical Exam Costs and Scheduling
- Study Materials and Code Book Investment
- Total Cost Breakdown: What to Budget in 2026
- Annual Renewal Costs After Licensure
- What a Failed Attempt Actually Costs You
- Hidden Costs Candidates Forget to Plan For
- A Cost-Aware Prep Timeline
- Frequently Asked Questions
- The PSI written exam fee is $100 per attempt, charged every time you retake it.
- The LARA initial license fee is $40, separate from the $100 PSI testing fee.
- Annual license renewal costs $40 and is due by April 30 every year.
- Written and practical exams must both pass within the same one-year application window, or fees are wasted.
PSI Written Exam Fee: The $100 You'll Pay Per Attempt
The core cost of sitting the Michigan Journey Plumber License Exam (MI-JP) written test is straightforward: PSI Services LLC, the testing provider that administers the exam on behalf of LARA's Bureau of Construction Codes, charges $100 per attempt. That fee covers a single 180-minute, 125-question, computer-based session at a physical PSI test center. Michigan does not offer remote proctoring for this exam, so the $100 buys you a seat and nothing more - no retake credit, no study package, no bundled materials.
Because the exam is open-book, part of what you're paying for is the privilege of bringing your approved references into a controlled testing environment. That distinction matters when you're comparing this fee to closed-book professional exams; PSI's proctors will check that your code books meet the tabbing and no-markings rules before you sit down, which is a cost-relevant detail we cover in the study materials section below.
LARA Application and Licensing Fees
Before PSI will even let you schedule the written exam, LARA has to approve your application. That approval carries its own fee structure, separate from testing costs:
- Initial license fee: $40, submitted with your LARA application
- Experience documentation: no direct fee, but notarization of your employer experience statements typically carries a small notary charge depending on where you get it done
- Application timing: LARA approval must happen before PSI scheduling opens, so this fee is paid upfront, before you've booked a test date
This sequencing is one of the most misunderstood parts of the process. You cannot pay PSI's $100 and walk into a test center without first clearing LARA's application review. For a full breakdown of the hour and documentation prerequisites that go along with this application fee, see our MI-JP Requirements guide, which covers the 18-plus age minimum, the 6,000-hour apprenticeship requirement spread over at least three years, and the notarized employer statements LARA expects.
Key Takeaway
Pay the $40 LARA fee and submit your notarized experience documentation well before your target test date - approval has to happen first, and delays here push back everything downstream, including your one-year application clock.
Practical Exam Costs and Scheduling
MI-JP licensure isn't just the PSI written exam. LARA's Bureau of Construction Codes also requires a separate hands-on practical examination, and both the written and practical components must be passed within the same one-year application period. A passing written score does not carry over into a new application if your window lapses, which means the practical exam's scheduling logistics are directly tied to your overall cost picture.
The practical session runs on a published schedule from 10:00 a.m. to 12:30 p.m., and scheduling requests must meet a 30-day cutoff. If you miss that cutoff or your one-year window closes before you've completed both exams, you're not just losing time - you're potentially paying the $100 PSI fee again for a fresh written attempt, plus whatever the practical exam's own fee structure requires, once you reapply.
Study Materials and Code Book Investment
Because the MI-JP written exam is open-book, your approved references are arguably your most important purchase after the exam fee itself. PSI's bulletin (effective April 29, 2026) names three approved sources:
- The 2021 Michigan Plumbing Code
- State Construction Code Act (1972 PA 230)
- Skilled Trades Regulation Act (2016 PA 407)
You'll want your own copies well before test day, not borrowed ones, because PSI allows chapter tabs but strictly prohibits highlighting, underlining, or handwritten notes in the code book you bring. If you print statutory references from the BCC website, each one must be a separate document, bound with three staples on the left edge, with no markings or tabs, and no additional loose papers attached. Getting this binding wrong at the test center can cost you the ability to use that reference at all - an avoidable cost if you prepare your documents correctly in advance.
Beyond the code books themselves, most candidates supplement with a Michigan plumbing exam study guide and a Michigan journeyman plumber practice test to get comfortable navigating the code under time pressure. Our own MI-JP Study Guide 2026 walks through how to build a study plan around these exact reference materials, and you can start working through realistic practice questions on our main practice test platform to see how much of the 180 minutes you'll actually need per question.
Domain 1: Plumbing Theory
Covers the fundamental science and engineering behind plumbing systems - hydraulics, drainage principles, venting theory, and the reasoning behind code requirements rather than just the rules themselves.
- Understand why vent sizing and trap seals work the way they do, not just the minimum dimensions
Domain 2: The Practice of Plumbing
Focuses on applied, hands-on knowledge: installation methods, fixture connections, water distribution layout, and interpreting isometric drawings on the job.
- Practice reading isometric drawings since they appear in both the written and practical portions of licensure
Domain 3: State Plumbing Code, Rules and Regulations
Tests your ability to locate and apply the 2021 Michigan Plumbing Code and related statutes quickly under time pressure - this is where your tabbed code book earns its keep.
- Drill navigation speed in your code book so you're not burning minutes flipping pages during the exam
For a deeper dive into how these three domains are weighted and what specific subtopics - drainage systems, backflow prevention, special waste systems, testing and inspections - fall under each one, see our MI-JP Exam Domains Guide.
Total Cost Breakdown: What to Budget in 2026
Pulling the confirmed fees together, here's what a candidate should expect to pay just to reach a licensed status, assuming a single successful attempt at each exam:
| Cost Item | Fee | Paid To |
|---|---|---|
| LARA initial license application | $40 | LARA / BCC |
| PSI written exam (per attempt) | $100 | PSI Services LLC |
| Notarization of experience statements | Varies (small, local notary fee) | Notary public |
| Approved code books and reference materials | Varies by source and edition | Publisher / retailer |
| Annual license renewal (ongoing) | $40 | LARA |
Notice what's absent from this table: there is no fee listed here for the BCC practical examination itself in the cert facts available, so candidates should confirm current practical exam costs directly with LARA when they schedule. What is confirmed is that both exams must be completed inside the same one-year window, which is the real cost risk - not the individual fees, but the possibility of paying them twice because of a missed deadline.
Annual Renewal Costs After Licensure
Passing both exams and receiving your Journey Plumber license isn't the end of the cost conversation. LARA requires annual renewal by April 30 each year, and the renewal fee is $40 - the same figure as your initial license fee. This is a predictable, recurring cost, not a one-time expense, so anyone evaluating the long-term value of this credential should factor it into their ongoing cost of doing business.
There's also a compliance obligation tied to code updates: a board-approved code-update course is required within one year after LARA adopts a new plumbing code. This isn't an annual requirement - it only triggers when the code itself changes - but it's a cost that licensed plumbers should watch for, since missing that window can jeopardize renewal standing.
Key Takeaway
Budget $40 annually for renewal by April 30, and set a reminder to check for code-update course requirements whenever LARA adopts a new plumbing code edition.
What a Failed Attempt Actually Costs You
PSI permits repeat written attempts, but each retake requires a new $100 examination fee, and retakes are still bound by your original application window. If you fail the written exam, pay $100 again, pass it, but then miss the 30-day practical scheduling cutoff and let your one-year application period expire, you lose everything - including that second $100 payment - and have to reapply to LARA from scratch with a fresh $40 application fee.
This is why understanding the exam's actual difficulty and the 75% minimum passing score matters as much as understanding the fee schedule. A candidate who walks in underprepared isn't just risking a failing score; they're risking a cascade of repeat fees. Our difficulty guide and passing score breakdown both go into what it actually takes to clear that 75% bar on the first try, and our pass rate analysis looks at what the available data shows about first-attempt outcomes.
Hidden Costs Candidates Forget to Plan For
Beyond the headline fees, a few line items catch candidates off guard:
- Travel to a PSI test center: since remote proctoring isn't offered for this exam, candidates in more remote parts of Michigan may need to factor in mileage or lodging to reach an available testing location.
- Incorrectly bound statutory printouts: if your printed statutory references aren't bound exactly as required - separate documents, three staples on the left edge, no markings - you may be barred from using them, effectively wasting the printing cost and forcing you to rely on memory for those sections.
- Notary fees for experience statements: documenting 6,000 hours across at least three years under a licensed master or journey plumber requires notarized employer statements, and multiple employers across that span may mean multiple notarization trips.
- Time cost of a rejected application: if LARA finds gaps in your hour documentation, the resubmission delay can push your eventual test date later than planned, indirectly costing you lost income while you wait to test.
None of these are large dollar amounts individually, but they add friction and, in the case of application delays, can eat into your one-year window before you've even sat for the written exam.
A Cost-Aware Prep Timeline
Since fees are tied to attempts rather than time spent studying, the smartest way to control cost is to reduce the odds of needing a retake. That means front-loading review of the domain most likely to trip up first-time candidates - typically Domain 3, given the volume of statutory and code detail - while still building fluency across all three domains before you schedule.
Plumbing Theory Foundations
- Review hydraulic principles, drainage and vent system theory under Domain 1
- Confirm your LARA application and notarized experience statements are submitted
Applied Practice Skills
- Work through fixture connections, water distribution and isometric drawing interpretation for Domain 2
- Order and tab your 2021 Michigan Plumbing Code, PA 230 and PA 407 references
Code and Regulation Mastery
- Drill Domain 3 code lookups for speed, focusing on backflow prevention and special waste systems
- Run full-length timed practice sessions to rehearse the 125-question, 180-minute format
Final Review and Scheduling
- Confirm code book binding meets PSI's no-markings rule before test day
- Schedule your PSI written exam and, once passed, your practical exam within the 30-day cutoff
For a topic-by-topic checklist that maps directly to this timeline, our MI-JP Cheat Sheet condenses the must-know facts into a one-page reference, and the MI-JP Exam Dates guide covers how to align your study schedule with actual testing windows and the 30-day scheduling rule for the practical exam.
Frequently Asked Questions
The PSI written exam fee is $100 per attempt, and the LARA initial license application fee is $40. These are separate payments to different organizations, so plan for both before scheduling.
Yes. PSI charges a new $100 fee for every retake of the written exam, and that retake still has to happen within your original one-year LARA application window.
A passing written score does not transfer to a new application. Both the written and practical exams must be passed within the same one-year application period, or you'll need to reapply.
Journey Plumber licenses renew annually by April 30 for a $40 fee, separate from the initial application and exam costs.
The code books themselves (2021 Michigan Plumbing Code, PA 230, PA 407) have their own purchase cost, and any printed statutory references must be bound with three staples on the left edge as separate documents - get this wrong and you risk not being able to use them at all.
Understanding the full MI-JP cost structure - the $100 PSI fee, the $40 LARA application and renewal fees, and the real risk of paying twice if your one-year window lapses - is the first step toward budgeting realistically for licensure. Pair that budget awareness with focused domain review, and you'll reduce the chance that any of these fees become a repeat expense. For more on what this credential opens up professionally once you've covered the costs, see our MI-JP Salary Guide and ROI analysis, or browse practice questions to start preparing today.