How to register for Employer Health Tax — and autofill on00155 with my-id.ca
Register for an EHT account without retyping employer details
Ontario employers applying for Employer Health Tax registration repeat legal name, trade name, business and mailing addresses, and payroll contact details on every registration package. This guide is an example of storing them once in my-id.ca.
Official form and source
Start from the official source and always use the current version — form numbers and links can change:
- Service page: Employer Health Tax (EHT) — ontario.ca
- Form (Central Forms Repository): Application for Employer Health Tax Registration — on00155
What this form is about
Form on00155 is the Application for Employer Health Tax Registration with the Ministry of Finance — confirm whether you must register on ontario.ca.
Before you start: what to gather
- Legal name and trade name of the employer.
- Business and mailing addresses and phone numbers.
- Contact person or authorized representative name and details.
- Federal business number, payroll start date, and employer type.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your employer name, addresses, and contact details in your my-id.ca profile.
- Keep documents ready. Upload supporting documents to my-id.ca Files so you are not searching at form time.
- Autofill the form. Use the my-id.ca Chrome extension on a web form, or fill a PDF from your saved profile inside my-id.ca.
- Review and submit yourself through the official channel.
Why do it in my-id.ca
Related Ontario forms repeat the same personal details. Captured once in my-id.ca — stored in Canada, with AI on its own servers — every form starts mostly complete.
Frequently asked questions
- Who must register for EHT?
- Employers not eligible for the exemption or whose payroll exceeds the allowable exemption — confirm on ontario.ca.
- How does my-id.ca help?
- It autofills legal name, trade name, addresses, and contact details.
- Can registration be done online?
- Registration may be available through ONT-TAXS online — confirm current options on ontario.ca.
Fill it once. Reuse it everywhere.
Save your information in my-id.ca once, then autofill this form and the next one — web forms with the Chrome extension, PDFs right in the app. Your data is stored in Canada and AI runs on my-id.ca's own servers, never sent to third-party AI providers.