The income share agreement has no interest. It's a flat percentage of your income. Your obligation goes away once you've reached your payment cap, you've made 19 payments, or you haven’t been able to make payments for 60 months.
The details are slightly different, depending on the jurisdiction of your ISA. We are planning to launch Programmes in Canada, Europe, UK and USA. If you are within these jurisdictions please sign up for updates on any page on our website.
If you are outside of these jurisdictions and are interested in the Programme sign up for updates and make sure you include your country. The we will know which countries we should be focusing on!