Follow the steps to successfully complete the form.

1. Click ‘Get Form’ button to obtain the form and open it in the editor.
2. In Part A, enter the identification details of the operator. This includes the operator's name, business number, contact person, contact person's title, telephone number, and extension.
3. Proceed to Part B to fill in the identification details of the co-venturer. Provide the co-venturer's name and business number (if applicable), along with their mailing address, city, province or territory, contact person, contact person's title, postal code, telephone number, and extension.
4. In Part C, input the name of the joint venture and describe the activities involved in the joint venture.
5. In Part D, indicate whether you are making an election or revocation by selecting the appropriate box. Additionally, provide the effective date of the election or revocation, including year, month, and day.
6. In Part E, the authorized person must certify the accuracy of the information provided about the operator and co-venturer(s). They should print their name, provide their title, and sign with the date (year, month, and day).
7. If applicable, in Part F, the authorized co-venturer should certify their information and sign similarly, printing their name, providing their title, and signing with the date (year, month, and day).
8. Finally, review all entries for accuracy. You can then save changes, download, print, or share the completed form as needed.

Complete the Canada GST21E form online today to ensure proper management of your GST/HST obligations.