@sfuller 

For Non-Partners, you can complete on-demand courses for free from ServiceNow University but would need to redeem voucher via credit card payment along with taxes. Cost details are available from below knowledge article

https://learning.servicenow.com/lxp/en/credentials/cost-of-taking-the-certification-exams?id=kb_arti...

As per community guidelines, you can accept more than one answer as accepted solution. If my response helped to answer your query, please mark it helpful & accept the solution.

Thanks,

Bhuvan