The business · · 6 min read
ASHI vs InterNACHI
A neutral comparison of ASHI and InterNACHI for home inspectors: membership steps, training, standards of practice, and which fits your career stage.
ASHI and InterNACHI are national home inspector associations with their own membership paths, training, and standards of practice. Neither one is a state license. Which association fits you depends on your career stage, what your state requires, and which community the inspectors and agents around you already use.
This is a fit question, not a ranking. Both associations publish standards, ethics, and education. Agents in one city may recognize one name more than the other. Read the current rules on each site before you pay dues or put a logo on a report.
What each association is
The American Society of Home Inspectors (ASHI) and the International Association of Certified Home Inspectors (InterNACHI) are membership organizations. Your state board, if you have one, decides whether you may inspect for a fee. Association membership does not replace that step. The path into the trade is in how to become a home inspector.
Confirm with your board whether any association membership is required where you work. Do not assume it is optional in every jurisdiction, and do not assume joining either association satisfies the license.
How far each credential goes
ASHI states that every new member begins as an Associate, whatever their experience. The levels of membership page says an Associate submits an application, passes the Standard of Practice and Code of Ethics modules on ASHI Edge, and stays current on dues. After one full year as an Associate, the member begins earning 20 ASHI-approved continuing-education hours a year. The Associate logo is the benefit named at that level.
ASHI Inspector adds, on top of the Associate requirements: a state home inspector license where the state requires one, or proof of passing the National Home Inspector Examination (NHIE) where it does not; at least 50 fee-paid inspections; five full reports through ASHI’s report verification portal; and a notarized affidavit of the inspection count. Inspector and Certified Inspector profiles are searchable in Find an Inspector. Associate is not described that way on the levels page.
ASHI Certified Inspector (ACI) is the level ASHI describes as accredited by the National Commission for Certifying Agencies (NCCA). It adds the NHIE, report verification against the Standard of Practice, and proof of at least 250 fee-paid inspections that meet that standard. ACI is not a first-week logo. A closer look at the ASHI path is joining ASHI as a new inspector.
InterNACHI’s certification requirements list six steps to the Certified Professional Inspector (CPI) credential: pass the online inspector examination (the page says it is free and open to non-members), join, complete the Code of Ethics course, complete the Standards of Practice course, submit four mock or simulated inspection reports, and sign the affidavit. The Certified Professional Inspector CPI page also lists four mock inspection reports. Confirm the current list when you apply. Requirements change, and existing members may be held to the rules in effect when they joined.
To keep CPI status, that second page says you substantially follow InterNACHI’s Standards of Practice or the standard required by law in your jurisdiction, abide by the Code of Ethics, comply with the continuing-education policy, and pass the online inspector examination every three years with a score of 80% or better. Read the current policy for the hour details rather than guessing them.
| Question | ASHI | InterNACHI |
|---|---|---|
| Is it a license? | No. The state decides whether you can inspect for a fee. | No. The state decides whether you can inspect for a fee. |
| Where you start | Associate. ASHI says everyone begins there. | Membership, then the CPI steps on the current certification page. |
| Experience named for a higher mark | Inspector: at least 50 fee-paid inspections and five verified reports. ACI: at least 250 fee-paid inspections and the NHIE. | The CPI pages cited here list courses, an exam, four mock reports, and an affidavit. Confirm the current list. |
| Standards members follow | ASHI Standard of Practice and Code of Ethics. | InterNACHI Standards of Practice and Code of Ethics, or the standard required by law. |
| Education named up front | SOP and ethics modules to join. After one year as Associate, 20 approved CE hours a year. | Online courses for members. Confirm current dues and which courses your status requires. |
Standards of practice
Each association publishes its own standard. ASHI’s is the Standards of Practice. InterNACHI’s is the Standards of Practice. Members agree to follow the standard of the association they join. Your state may name a standard in statute, adopt one of these, or leave scope to the contract. The association document does not answer the legal question. Read the board’s current rule.
Training, without declaring a winner
InterNACHI’s education catalog says members have free access to its online courses, and that non-members pay to access them. The catalog has listed $49 per month or $499 per year for that access. Confirm the figure on the page before you budget it. ASHI requires its own Edge modules to join and, after the first year as an Associate, ASHI-approved continuing education. Neither fact makes one association the better school. Match the catalog to the gap you have: standards language, a system you have not inspected, or the reports you will need if you move up a level.
Which stage each path fits
If you are new and want a name you can use without overstating it, ASHI’s Associate level is built for that, with Inspector and ACI waiting on real volume and verified reports. If you want a large online course library tied to membership, start by reading InterNACHI’s catalog and the CPI steps, then confirm what your state still requires on top. If the agents you hope to work with already ask for one logo, that local habit matters more than a national argument. You can add the other association later.
Many inspectors hold both. InterNACHI’s Code of Ethics says members of other associations are welcome, and that InterNACHI must be given equal or greater prominence in marketing materials compared with other inspection associations. ASHI’s levels page does not, in the text published there, forbid another membership. Confirm both current agreements before you print two logos.
Membership can help people find you. It does not promise referrals. ASHI’s Find an Inspector listing is described as an Inspector and ACI benefit. Chapters are where a lot of early conversations happen. The business setup around either membership is in how to start a home inspection business.
If you later submit reports for verification, they need complete sections and photos tied to the findings. The workspace for that is a separate choice, covered in the inspection software guide.
Pass this along to a client or agent.
Common questions
- What is the difference between ASHI and InterNACHI?
- Both are associations, not licenses. ASHI starts everyone as an Associate and ties Inspector and ACI to inspection counts, verified reports, and, for ACI, the NHIE. InterNACHI’s CPI pages center on an online exam, ethics and standards courses, four mock reports, and an affidavit. Confirm the current rules on each site.
- Do I need to join an association to be a home inspector?
- Usually the legal step is the state license or registration, not a logo. Some clients or, in some places, the statute may expect membership. Read your board’s rule before you treat either association as required or as enough.
- Can I belong to both?
- Yes. Many inspectors do. InterNACHI’s Code of Ethics asks members to give InterNACHI equal or greater prominence in marketing than other inspection associations. Confirm ASHI’s current terms as well.
- Which standards of practice does my state use?
- Your state board decides. It may name a standard, point at an association standard, or leave scope to your contract. ASHI and InterNACHI standards bind their members. They are not automatically the statute.
- Does membership help me get referrals?
- It can make you easier to find. ASHI describes a Find an Inspector profile for Inspector and ACI members, and local chapters are where inspectors meet agents. Membership is not a promise that agents will send work.
What is the difference between ASHI and InterNACHI?
Both are associations, not licenses. ASHI starts everyone as an Associate and ties Inspector and ACI to inspection counts, verified reports, and, for ACI, the NHIE. InterNACHI’s CPI pages center on an online exam, ethics and standards courses, four mock reports, and an affidavit. Confirm the current rules on each site.
Do I need to join an association to be a home inspector?
Usually the legal step is the state license or registration, not a logo. Some clients or, in some places, the statute may expect membership. Read your board’s rule before you treat either association as required or as enough.
Can I belong to both?
Yes. Many inspectors do. InterNACHI’s Code of Ethics asks members to give InterNACHI equal or greater prominence in marketing than other inspection associations. Confirm ASHI’s current terms as well.
Which standards of practice does my state use?
Your state board decides. It may name a standard, point at an association standard, or leave scope to your contract. ASHI and InterNACHI standards bind their members. They are not automatically the statute.
Does membership help me get referrals?
It can make you easier to find. ASHI describes a Find an Inspector profile for Inspector and ACI members, and local chapters are where inspectors meet agents. Membership is not a promise that agents will send work.
Still the inspector of record—AI assists, you publish.