ASHI vs InterNACHI: which certification is better for new inspectors?

If you are a new home inspector, here is the short, fair answer: neither ASHI nor InterNACHI is the single best choice for everyone. ASHI is smaller and older, and it is known for a peer-reviewed credential that many agents and clients respect. InterNACHI is much larger, costs a bit less to start, and hands you a huge library of free training and marketing tools. Your state license, not your association, is what lets you legally inspect, so pick the group that fits your budget, your learning style, and how your local market thinks. According to ASHI's own membership page, its top credential is accredited by the National Commission for Certifying Agencies, which is a real mark of trust for a young inspector.

Below we break down both groups in plain language. We cover what each one is, how big it is, what it costs, how you earn the certification, the exams, the training, the ethics rules, how states view them, and the real pros and cons. Many working inspectors end up joining both, and we explain when that makes sense too.

ASHI vs InterNACHI at a glance

Factor	ASHI	InterNACHI
Founded	1976	1994
Size	A few thousand members	More than 27,000 members
Top credential	ASHI Certified Inspector (ACI)	Certified Professional Inspector (CPI)
Yearly dues	About 300 to 500 dollars	About 499 dollars (49 dollars per month)
Path to top badge	250 fee-paid inspections plus NHIE	Free online exam, courses, four mock reports if new
Free training	Approved schools and chapters	Over 1,000 hours of free courses
Best for	Reputation and peer review over time	Fast start on a tight budget

What is ASHI, and how did it start?

ASHI stands for the American Society of Home Inspectors. It began in 1976, which makes it the older of the two big groups. For decades it has been seen as a trusted name in North America. Real estate agents who have been around a while often know the ASHI logo and trust it.

ASHI is built around member levels. You start as an Associate, then move up as you gain real inspection experience. The group also runs local chapters, so you can meet other inspectors in your area, learn from them, and build referrals.

What is InterNACHI, and how did it start?

InterNACHI stands for the International Association of Certified Home Inspectors. It started in 1994, so it is younger than ASHI. In a short time it grew into the largest home inspection group in the world. Its main credential is the Certified Professional Inspector, or CPI.

InterNACHI leans hard into online training and business support. It gives members free courses, free marketing materials, and dozens of extra certifications at no extra cost. For a brand new inspector who needs to learn fast and get a website up, that support is a big draw.

How big is each group?

Size is one of the clearest differences. InterNACHI is far larger. Its public membership counter reports more than 27,000 members, and the group calls itself the largest home inspection association in the world. ASHI is smaller, with a few thousand members, and it describes itself as the largest and most respected group in North America.

Does size matter for a new inspector?

Size can help in two ways. A bigger group often means more online training, more tools, and a busier member forum where you can ask questions. A smaller, older group can mean a name that some agents and clients recognize more quickly. Neither one is better on its own. It depends on what you value: a big toolbox or a well-known badge.

What does it cost to join each one?

Cost is a fair place to start when money is tight in your first year.

What do ASHI dues include?

ASHI charges annual dues in the range of about 300 to 500 dollars per year, and it lets you climb through member levels as you gain experience. Your dues include access to ASHI training, chapter meetings, and use of the member logo once you qualify. A report from Spectora's 2026 certification guide puts ASHI membership in that same yearly range.

What do InterNACHI dues include?

InterNACHI charges about 49 dollars per month, or roughly 499 dollars per year. The big point here is value: the CPI designation itself is free once you are a member, and dues unlock a very large set of free courses and tools. So while the yearly price is close to ASHI, you get a lot bundled in.

How do you earn each certification?

This is where the two groups differ the most. One asks for lots of real, paid inspections. The other lets you start before you have done a single paid job.

How do you become an ASHI Certified Inspector?

The ASHI Certified Inspector, or ACI, is the top level. Based on ASHI's membership levels, you move through these steps:

• Join as an Associate and pass the Standards of Practice and Code of Ethics modules.
• Reach the Inspector level, which asks for at least 50 fee-paid inspections and a state license or a passing score on the National Home Inspector Examination.
• Submit five real inspection reports for a verification review against ASHI standards.
• Reach the ACI level, which asks for at least 250 fee-paid inspections and a passing NHIE score.

That 250-inspection bar is a lot for a beginner. It means the ACI badge takes time and real work, which is part of why it carries weight.

How do you become an InterNACHI Certified Professional Inspector?

The InterNACHI path is friendlier to someone with zero paid jobs so far. Per InterNACHI's certification steps, you:

• Join InterNACHI as a member.
• Pass the free online inspector exam, which is open to everyone.
• Finish the online Code of Ethics course.
• Finish the online Standards of Practice course.
• Submit four mock inspection reports if you have never done fee-paid work.
• Sign an affidavit, then download your certificate.

To keep the CPI active, you retake the online exam every three years and score at least 80 percent. This lets a new inspector earn a real credential before landing that first big client.

What are the exam requirements?

Exams are a common worry, so let us be clear about the difference. ASHI's top credential leans on the National Home Inspector Examination, or NHIE. This is a serious, standardized test that many states also use for licensing. If you want to know how tough it is, our post on the National Home Inspector Exam pass rate walks through what to expect.

InterNACHI uses its own free online exam to grant the CPI. It is open to anyone, and you retake it every three years. So ASHI's route points you toward the NHIE, while InterNACHI's route uses its in-house test. Note that even InterNACHI members often still take the NHIE, because their state requires it.

What training and continuing education does each offer?

Both groups want you to keep learning after you join, which protects clients and lowers your risk.

ASHI offers approved training through schools and chapters, plus advanced education for certified members. InterNACHI is famous for volume: its member benefits page lists more than 1,000 hours of free online education and dozens of extra certifications at no added cost. For a new inspector who learns by watching and reading at their own pace, that free library is a strong reason to look at InterNACHI.

How much continuing education do they require?

ASHI asks members to earn about 20 continuing education hours per year. InterNACHI asks for about 24 hours per year. Both numbers are reasonable, and in many states these hours can also count toward your license renewal, so you are not doing the work twice.

What are the Standards of Practice and Code of Ethics?

Every good inspector follows a written rulebook. Both groups publish one.

The ASHI Standard of Practice sets a minimum for what an inspection must cover, such as structure, roof, plumbing, electrical, and heating and cooling, and it spells out what is not required. The InterNACHI Standards of Practice do the same job for homes with four or fewer units, and they include a clear glossary so everyone uses the same words. Both groups also require members to follow a Code of Ethics that puts the client first and bars conflicts of interest, like inspecting a home and then bidding to repair it.

The takeaway: both sets of standards are solid and widely accepted. You will not go wrong following either one, and some states point to a specific standard in their own rules.

How do states view ASHI and InterNACHI for licensing?

This is the point new inspectors most often get wrong, so read it twice. Your state license, not your association badge, is what lets you legally inspect homes. Most licensing boards care that you passed the required exam, finished the required training hours, and carry proper insurance. They usually do not care which club you joined.

InterNACHI makes this same point on its CPI versus state licensing page: the CPI credential is voluntary and goes beyond the state minimum, and its continuing education may count toward your license renewal depending on the state. If you are still learning the license basics, start with our guide on how to become a home inspector and then layer an association on top.

What free tools and marketing help do you get?

Here is where InterNACHI really stands out for a beginner on a budget. Its member benefits include free logo design, printed materials like brochures and business cards, social media graphics, fee and time calculators, client surveys, and even a program that helps buy back a home in certain cases. For someone starting a business from scratch, that toolkit can save real money.

ASHI takes a different path. Its strength is the peer-reviewed ACI credential and the trust that comes with an older, accredited name. Instead of a giant free toolbox, ASHI offers a badge that experienced agents often know and respect. One group hands you tools; the other hands you a well-earned reputation.

What are the pros and cons of ASHI?

ASHI pros

• Older, trusted name that many agents recognize.
• Top ACI credential is accredited by a national commission.
• Peer review of real reports builds true skill and credibility.
• Active local chapters for networking and referrals.

ASHI cons

• The 250-inspection bar for ACI takes real time and experience.
• Smaller group means fewer online freebies than InterNACHI.
• Slower to give a brand new inspector a headline credential.

What are the pros and cons of InterNACHI?

InterNACHI pros

• You can earn the CPI before your first paid job.
• Over 1,000 hours of free training plus many extra certifications.
• Large set of free marketing and business tools.
• Biggest member base in the world, with a busy support community.

InterNACHI cons

• Easier entry can make the badge feel less exclusive to some agents.
• The free in-house exam is not the same as the state-used NHIE.
• You must retake the online exam every three years to stay certified.

Which certification is right for you?

There is no single winner, so match the group to your situation.

When ASHI makes sense

Pick ASHI if you plan to build a long career, you want a credential that agents and repeat clients respect, and you are ready to log inspections and pass the NHIE over time. It fits inspectors who value reputation and peer review over a big pile of free tools.

When InterNACHI makes sense

Pick InterNACHI if you are brand new, watching your budget, and you want training and marketing help right away. It fits inspectors who learn well online and want a certification they can earn before their first paid job.

Why many inspectors join both

Plenty of working inspectors carry both. They use InterNACHI for the free courses, tools, and fast start, and they pursue ASHI for the respected, accredited credential as their experience grows. If you can afford two sets of dues, joining both gives you the tools of one and the reputation of the other. Just remember that your state license still comes first.

How does PadInspector help either way?

No matter which badge you choose, the daily grind is the same: you walk the home, take notes, snap photos, and then spend hours writing the report. PadInspector was built to cut that second part way down. It is voice-driven software for iPad, iPhone, and Apple Watch. You walk and talk, and it transcribes your words, attaches photos to the right area, looks up code violations for you, and drafts the full report before you leave the driveway.

It also works offline, so a weak signal never stops you, and it can pre-fill an inspection from Zillow before you arrive. Team mode lets a crew see who inspected what, and we never sell your client data. Good tools and a strong credential make a great pair, and the PadInspector feature list shows how the app supports your work whether you carry an ASHI badge, a CPI, or both.

PadInspector is invite-only while we grow with care. If you are a new inspector who wants to finish reports faster and look sharp on day one, request an invite and see how much time you get back.