What is the passing score on the NHIE?

The passing score is 500 on a 200–800 scaled scale. In raw terms that works out to roughly 71–75% of the 175 scored questions, but the conversion shifts with question difficulty, so a 500 represents the same level of knowledge on any version of the exam.

How many NHIE questions actually count toward your score?

The NHIE has 200 questions, but only 175 count toward your scaled score. The other 25 are unscored pretest questions that EBPHI seeds throughout the exam to evaluate potential questions for future versions. They look exactly like every other question and cannot be identified.

Do you have to sign an NDA before taking the NHIE?

Yes. The first thing on your screen at the testing center is a Non-Disclosure Agreement, before you see a single exam question. You have to read it and accept it before the exam begins.

Is the NHIE scored as a percentage?

No. The NHIE uses scaled scoring: your raw count of correct answers on the 175 scored questions is converted to a 200–800 scale using item-response theory. You’ll see your scaled score and a pass/fail result immediately at the testing center, along with a breakdown by content area — but never your raw count.

3 Things That Will Surprise You on NHIE Test Day

You spent weeks studying. You know your electrical panels. You know your TPR valves. You’ve gone through the content and you feel ready.

Then you sit down at the testing center.

Before you see a single inspection question, something unexpected happens. Then another thing. Then another.

Most candidates prepare for the content and assume the exam experience will take care of itself. It doesn’t. Here are three things that catch people off guard on NHIE test day. None of them have anything to do with home inspection knowledge.

1. You’ll sign a legal agreement before you see question one

The first thing on your screen isn’t a question about roof flashing or GFCI protection. It’s a Non-Disclosure Agreement.

You have to read it, accept it, and move on before the exam begins.

Person at a laptop with a Non-Disclosure Agreement and lock icon on the screen — Before question one, the NHIE puts a legal agreement on your screen.

It’s not complicated. It’s not a trap. But if you’re already sitting there with nerves and a timer and you weren’t expecting a legal document, it throws you. Even a few seconds of confusion can cost you mentally at the start of a four-hour exam.

Knowing it’s coming changes everything. You read it, click accept, and move into the exam without missing a beat.

2. You’re not being scored on a percentage

Most candidates go into the NHIE thinking they need to get a certain percentage of questions right. That’s not how it works.

The NHIE uses scaled scoring. Your raw score is the number of correct answers out of the 175 questions that actually count. That number is then converted to a scaled score on a 200–800 scale using item-response theory. The conversion accounts for question difficulty, so a 500 on one version of the exam represents the same level of knowledge as a 500 on any other version.

The passing score is 500.

NHIE score scale from 200 to 800 showing the passing score of 500, with a raw equivalent of roughly 71–75% of the 175 scored questions — The NHIE is scored on a 200–800 scale — 500 passes, no matter which version of the exam you get.

In raw terms, that works out to roughly 71–75% of the 175 scored questions. But here’s the thing: you won’t see your raw count when you finish. You’ll see your scaled score and a pass/fail result immediately at the testing center. You’ll also get a breakdown by content area showing where you were strong and where you came up short.

That’s why “I feel like I’m getting about 75% right in practice” isn’t a reliable target. The scaling shifts with question difficulty. You need to train consistently across every domain, not chase a raw number.

3. Twenty-five of those 200 questions don’t count toward your score

Here’s where it gets interesting.

The NHIE has 200 questions. Only 175 of them count toward your scaled score.

The other 25 are pretest questions. EBPHI seeds them throughout the exam to evaluate potential questions for future versions of the test. They look exactly like every other question. You cannot identify them.

Pencil filling in bubbles on a multiple-choice answer sheet — 25 of the 200 questions are unscored pretest items — and they look exactly like the rest.

Two things follow from this.

First, you can’t skip anything or treat any question as less important. Every single one has to be taken seriously. Second, if you hit a mid-exam question that feels strange or unusually hard, it might be a pretest. Don’t spiral. Answer as best you can and keep moving.

The takeaway isn’t to try to identify pretest questions. That’s a dead end. The takeaway is to build preparation that’s broad and consistent enough to handle whatever appears on screen, scored or not.

Knowing the exam is part of the preparation

None of these three things are about inspection knowledge. They’re about knowing what you’re walking into.

Studying the content and ignoring the exam itself is where a lot of prepared candidates still get tripped up.

Bulletproof Test Prep is built around practicing in a format that mirrors the NHIE. Four-option questions. Scaled scoring feedback. Coverage across every domain the exam touches. By the time you sit down at the testing center, none of this should be a surprise. The NDA is expected. The format is familiar. The only variable left is the content, and that’s what you’ve been training for.

Show up ready. Not surprised.

Walk in knowing what to expect

Take the free NHIE sample exam and get a domain-by-domain AI breakdown of your readiness in minutes. No account, no credit card.

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Frequently asked questions

What is the passing score on the NHIE?: The passing score is 500 on a 200–800 scaled scale. In raw terms that works out to roughly 71–75% of the 175 scored questions, but the conversion shifts with question difficulty, so a 500 represents the same level of knowledge on any version of the exam.
How many NHIE questions actually count toward your score?: The NHIE has 200 questions, but only 175 count toward your scaled score. The other 25 are unscored pretest questions that EBPHI seeds throughout the exam to evaluate potential questions for future versions. They look exactly like every other question and cannot be identified.
Do you have to sign an NDA before taking the NHIE?: Yes. The first thing on your screen at the testing center is a Non-Disclosure Agreement, before you see a single exam question. You have to read it and accept it before the exam begins.
Is the NHIE scored as a percentage?: No. The NHIE uses scaled scoring: your raw count of correct answers on the 175 scored questions is converted to a 200–800 scale using item-response theory. You’ll see your scaled score and a pass/fail result immediately at the testing center, along with a breakdown by content area — but never your raw count.