Your cPanel and hPanel hosting plan can be renewed anytime by opening your Hosting and clicking on Renew:
Alternatively, you can click to Manage your hosting and then choose Renew:
You can also renew your hosting by choosing Billing → Services → Renew Now:
You can choose a suitable renewal period and renew your current plan with just a few clicks! The longer period you choose the cheaper the per-month price will be, so it's always best to go for longer periods 😉
NOTES:
You can renew your hosting and other services automatically if you enable an Auto Renewal.
You can also change your billing cycle for your hosting plan whenever you want.