Sure! You can add a subject to your membership at any time. The cost will be calculated pro rata if you update your membership in the middle of a billing cycle.
To add a subject:
- Sign in to your parent account from the IXL website.
- Open your account menu in the upper-right corner, and select Membership details.
- In the Membership information section, next to your current subject, click add English language (or add maths).
- Click Update to finalise your change.
The additional subject will be available immediately!