In TDS Insured, if you are a landlord, you need to create your free TDS for Landlords account.
Protecting the deposit is an easy online process. In your account you simply need to enter the details of the tenancy, the tenants, and the deposit being protected, and pay a small deposit protection fee.
You will need to download the documentation to serve to the tenants to include the Prescribed Information and Scheme Leaflet via https://www.tenancydepositscheme.com/learn-more/information-tds-lounge/templates/