The amount it takes for you to live in Belize has been discussed many times. How much rent will you pay? Some think living in a place for $10 a day is great others want a little better place costing $200 a day. How much do you eat and where do you eat. 25 cent breakfast tacos or $10us US style breakfast. Do you drink? What do you pay for internet access? How fast do you need? Renting monthly what does your power cost? The $2,000US is what the Belizean government figures you should spend to live there. If you are admitted through the Retired persons program thats required. Obviously not all Belizeans make that so they live on less. You can just come down with your $2,000 and hope to keep replenishing and go home in a couple months when your money runs out.

I'm not concerned with making enough to support myself. If I require less, and make less, but always keep a balance of $2,000 in the bank is that sufficient proof for the government?

And at what point do I have to prove this $2000 mark? Just when I apply for permanent residency?

The reason I stated what I did is because when I first moved to Belize this is exactly what I did after consulting with the government and tax department. Maybe things have changed several years later so great idea to recheck with them.