Shall I renew or leave it as periodic

We have had the same tenants for two years now. They always pay early and I think the rent is at the top end, i.e. it’s quite high compared to similar properties in the same area.

As I didn’t have any intention of putting the rent up yet, am I right in thinking that leaving the tenancy as periodic is better than all the faff to renew, as there is no material change?

Even if you did want to put up the rent, you do not need to re-sign. Periodic is best.