Buy or renew your IPI membership To purchase your membership you must first be accepted as an IPI member. To find out more about membership categories, see the membership overview. Payment successful Thank you — your payment was successful. A confirmation email is on its way. If anything looks wrong, contact [email protected]. Are you a new member or renewing? New member You've been accepted as an IPI member and are paying your first annual subscription. Continue as a new member → Renewing member You're an existing member renewing your annual subscription. You'll need the invoice number from the renewal invoice IPI emailed to you. Continue as a renewing member → Membership category* Loading categories… Member's full name* If you're paying on behalf of someone else (e.g. an employer paying for staff), enter the member's name here, not yours. Member's email address* Contact phone number* In case we need to reach you about this membership. Membership number (optional) IPI, RTPI or another institute, if you have one. Invoice number* From the renewal invoice IPI emailed to you. Letters, numbers and hyphens only, up to 10 characters. ← Back Continue to payment →