Hi Mike,

You should get thirty days after the renewal date before it gets closed down, main problem is not losing the domain name.

I've just been doing similar and shutting down the sites I have run for years without profit. The cost is just too high now, domain, hosting and SSL encryption being forced on us by browsers, breaks my heart! Several companies are doing one year cheap deals such as Ionos but that means moving sites and dns around.

My advice is to leave it until the last possible moment to give yourself more chance of a balanced opinion. If it was started as a business venture that is now losing money then I fear you already know the answer.