- The Number: 75% and What It Means
- How the Score Works in Practice
- Retest Rules: Two Chances Within 45 Days Each
- In-Person vs. Live-Stream: Where You Sit the Exam
- What the Score Is Measured Against: The Four Topic Areas
- Fees Tied to Your Score Outcome
- What Is Not Publicly Verified
- Matching Your Prep to the Four Domains
- After You Pass: Keeping the Credential
- Frequently Asked Questions
- IICRC's Retest FAQs specify a 75% passing score for the House Cleaning Technician (HCT) exam.
- You get two retests: the first within 45 days of initial scoring, the second within 45 days of the first retest.
- The initial exam and every retest each cost $80 USD, separate from course tuition.
- Failing both retests means repeating the course and the examination from the start.
The Number: 75% and What It Means
The passing score for the House Cleaning Technician (HCT) credential, issued through the Institute of Inspection Cleaning and Restoration Certification (IICRC), is 75%. That figure comes from IICRC's current Retest FAQs, which is the most precise administrative source on the subject. If you answer at least three out of every four scored items correctly, you pass. If you land below that line, you enter the retest process described below.
That sounds simple, and it is. The harder question is what 75% demands in practical terms. A candidate can miss a quarter of the exam and still earn the credential, which leaves real room for a weak area. But it is not a lot of room: if you skip an entire topic area, you may not recover that ground elsewhere. For a deeper look at how demanding the exam feels in practice, see How Hard Is the HCT Exam? Complete Difficulty Guide 2026.
How the Score Works in Practice
The published rule is a percentage threshold, not a scaled score. There is no indication in the issuer sources of a scaled-score conversion, a curve, or weighted sections. So the working assumption for preparation is straightforward: 75% correct is the target, and every question is a chance to move toward it.
Equally important is what the issuer does not publish. The current question count and the exam time limit were not verified in issuer sources. Historical provider material and third-party listings contain conflicting question-count claims, and one frequently circulated FAQ document explicitly refers to 2012 courses, so it describes an older form of the program rather than the current exam. Treat any specific "number of questions" you see quoted online with caution. Your preparation should focus on topic mastery, not on gaming a rumored question count.
Key Takeaway
Aim comfortably above 75% in practice, not exactly at it. Because the live exam's question count and timer are not publicly verified, a thin margin in practice offers little protection on test day.
Retest Rules: Two Chances Within 45 Days Each
The retest structure is one of the most useful facts to understand before you ever sit the exam, because it changes how you think about a first attempt. According to IICRC's current Retest FAQs:
- Initial exam: You sit the written exam as part of completing your course.
- First retest: If you do not reach 75%, you may retest within 45 days of the initial examination scoring date.
- Second retest: If you fail the first retest, you get one more attempt within 45 days of the first retest scoring date.
- After two failed retests: You must repeat the course and the examination.
The general FAQ page uses less precise 45-day wording. The detailed Retest FAQs are the better guide: the clock for each retest runs from the scoring date of the immediately preceding attempt, not from the end of the course. If your situation is borderline or unusual, confirm the specifics with IICRC or your approved school before relying on a date you worked out yourself.
| Attempt | Deadline | Exam Fee |
|---|---|---|
| Initial exam | Final course day (in person) or within 45 days of final course day (live-stream) | $80 USD |
| First retest | Within 45 days of initial examination scoring date | $80 USD |
| Second retest | Within 45 days of first retest scoring date | $80 USD |
| After both retests fail | Repeat course and exam | Tuition plus exam fee again |
The practical lesson: the retest window is short. If you miss 75% on your first try, you do not have months to regroup. You have 45 days, and that is your entire runway for targeted remediation. Knowing which topic area cost you points matters far more than simply re-reading everything. For help structuring that kind of focused review, our HCT Study Guide 2026: How to Pass on Your First Attempt walks through a domain-by-domain approach.
In-Person vs. Live-Stream: Where You Sit the Exam
The passing score is the same regardless of how you attend, but the logistics around the exam differ, and those logistics affect how much preparation time you effectively have.
In-Person Candidates
The HCT course runs two days with 14 instructional hours, excluding examination time, lunch, and breaks. In-person candidates take the written exam on the final course day.
- Your study window before the exam is essentially the course itself plus whatever you do beforehand.
- There is no remote portal to manage; the exam is part of the classroom event.
Live-Stream Candidates
Live-stream candidates must attend the full course and then use the IICRC Online Exam Portal, with ID verification. They have 45 days after the final course day to complete the exam.
- You gain flexibility but also responsibility for scheduling the exam yourself within the window.
- The 45-day access window is an availability period, not an exam timer.
- Likewise, the 14 instructional hours describe course length, not how long the exam lasts.
Eligibility questions come up often alongside delivery questions. IICRC's HCT page lists no prerequisites, and our HCT Requirements 2026: Eligibility, Prerequisites & How to Qualify article covers the broader qualification steps, including attending an approved course and documenting required skills.
What the Score Is Measured Against: The Four Topic Areas
A 75% threshold only means something once you know what the questions cover. The topic phrases below come from the HCT course description published by IICRC. Interior cleaning of residences is the overarching subject, and the other three phrases are its named components.
Domain 1: Interior cleaning of residences
The core subject of the credential. Expect this to be the anchor of your preparation, since the other topics build on it.
- Cleaning interior residential spaces systematically and safely
- Understanding the surfaces, furnishings, and materials found in homes
- Selecting appropriate tools, equipment, and products for the task
Domain 2: Sanitizing and disinfecting surfaces
A health-oriented component that separates routine cleaning from reducing contaminants on surfaces.
- Knowing the difference between cleaning, sanitizing, and disinfecting
- Applying products correctly and safely on residential surfaces
- Recognizing where health considerations change your approach
Domain 3: Non-disaster restoration
Restoration work that is part of ordinary residential cleaning rather than emergency response.
- Restoring the appearance and condition of affected surfaces and materials
- Distinguishing everyday restoration from large-scale disaster work
Domain 4: Normal maintenance
Ongoing upkeep practices. Note that IICRC's dedicated HCT page words this topic as "routine maintenance," while the course description says "normal maintenance." Both refer to the same area.
- Recurring care that keeps residential interiors in good condition
- Understanding how maintenance supports longer-lasting surfaces and materials
One important honesty point: these four lines are unweighted preparation topics drawn from a broad issuer course summary. They are not a formal exam blueprint, not independent official exam domains, and not a guarantee of exhaustive exam coverage. No domain weights have been published, so do not assume any one area counts for more than another. For a fuller walkthrough of each area, see HCT Exam Domains 2026: Complete Guide to All 4 Content Areas.
Supplemental material from ISSA, an approved training provider, lists preparation skills in areas such as environment, furnishings, health, materials and surfaces, safety, cleaning science, and tools and equipment. That material supports your study, but it does not add official exam domains. It is a useful lens for building depth within the four topic areas above.
Fees Tied to Your Score Outcome
Your score directly affects what you spend. The initial exam and each retest cost $80 USD, and that fee is separate from school tuition. That means a candidate who passes first time pays the exam fee once, while one who needs both retests pays it three times before even considering repeating the course.
- Pass on the first attempt: one $80 exam fee, plus tuition.
- Pass on the first retest: two $80 fees, plus tuition.
- Pass on the second retest: three $80 fees, plus tuition.
- Fail all attempts: three $80 fees already spent, then course tuition and a new exam fee to start over.
Optional study materials add to the total. ISSA Residential's public listing shows an optional HCT manual priced separately at $149, though only that public listing was reviewed, not the paid manual itself. For the complete financial picture, including tuition variation between schools, read HCT Certification Cost 2026: Complete Pricing Breakdown.
What Is Not Publicly Verified
A good article on a passing score should be clear about the limits of what is known. For the IICRC House Cleaning Technician exam, the following items were not verified in issuer sources and are therefore omitted rather than guessed:
- The current number of questions on the exam
- The exam time limit
- The cohort pass rate
- Any weighting between the four topic areas
If you see a specific pass rate or question count quoted on a forum or in an older document, be skeptical. One widely shared FAQ explicitly references 2012 courses, and an alternative provider listing could not be retrieved during this review. Neither establishes a current exam form or timer. Our HCT Pass Rate 2026: What the Data Shows article discusses what can and cannot be said about pass rates responsibly.
Matching Your Prep to the Four Domains
Because the exam draws on all four topic areas and the pass line is 75%, a balanced plan beats a lopsided one. Here is one way to sequence preparation around the HCT's own structure, assuming you are working toward a course date or the 45-day live-stream exam window.
Interior cleaning of residences
- Start here: it is the overarching subject and gives context to everything else
- Review surfaces, furnishings, materials, tools, and equipment
Sanitizing and disinfecting surfaces
- Lock in the distinctions between cleaning, sanitizing, and disinfecting
- Review safe product use and health considerations
Non-disaster restoration and normal maintenance
- Study restoration of everyday residential surfaces and materials
- Connect maintenance routines back to the cleaning concepts from Week 1
Full-range practice
- Take mixed-topic practice questions and track which area costs you points
- Use the HCT practice tests to find weak spots before your exam date
The reason to front-load Domain 1 is that interior residential cleaning is the foundation the other three topics extend. Sanitizing, restoration, and maintenance all assume you understand surfaces and materials first. If you want a condensed refresher late in your prep, the HCT Cheat Sheet 2026: One-Page Review of Must-Know Facts is a fast way to check recall.
Key Takeaway
After any practice session, sort your misses by topic area. A pattern in one domain tells you exactly where your retest-window time (or pre-exam time) should go.
After You Pass: Keeping the Credential
Clearing 75% is the gate, not the finish line. IICRC maintenance requires an annual renewal payment and 14 continuing-education credit hours every four years. The renewal amount depends on the certifications you hold, so it varies from person to person. The credential belongs to the individual and is separate from IICRC Certified Firm status, so your certification stays with you rather than with an employer.
If you are weighing the long-term value of the credential, our Is the HCT Certification Worth It? Complete ROI Analysis 2026 breaks down the trade-offs, and HCT Salary Guide 2026: Complete Earnings Analysis looks at earnings. For scheduling your own attempt, see HCT Exam Dates 2026: Testing Windows, Deadlines & Scheduling, and use the IICRC course calendar and approved schools list to find a class that fits.
Frequently Asked Questions
IICRC's Retest FAQs specify a 75% passing score for the HCT exam. This is a percentage threshold, and no weighting between topic areas has been published.
You get two retest opportunities. The first must occur within 45 days of the initial examination scoring date, and the second within 45 days of the first retest scoring date. If you fail both, you must repeat the course and the examination.
The initial exam and each retest cost $80 USD. This fee is separate from school tuition, so every retest adds to your total cost.
The current question count and time limit were not verified in issuer sources, so they are not stated here. The 14 instructional hours describe the course length and the 45-day live-stream window describes how long you have to complete the exam, but neither is an exam timer. Check with your approved school for details of your exam session.
The issuer sources do not describe a different passing score by delivery format. In-person candidates take the exam on the final course day, while live-stream candidates use the IICRC Online Exam Portal with ID verification and have 45 days after the final course day to complete it. Confirm the arrangements for your specific approved course before registering.
For a broader introduction to the credential itself, you can start with What Is HCT Certification?, and when you are ready to test your readiness against the 75% line, head to the HCT Exam Prep practice test site and see where you stand.