It sounds like you may be confusing the up front “financial” criteria needed to qualify to become a QRP resident with what is required to renew your QRP residency at the end of each year. They are two different requirements:
1. To obtain the QRP status, you will need to first of all prove that you have a pension that pays you at least $24,000/year, so you can transfer it to Belize to live on. IF you don’t have a pension, such as Social Security or a work related pension, the alternative is to show that you have adequate savings to fund your long term for many years of living in Belize. For instance, if you have $300,000 in IRAs, you can show them those savings to prove that you have enough to fund more than 10 years of retirement in Belize. Then, as long as you continue to transfer the required of money into the country each year, no one will ask for more info about your finances.
2. Once you actually become a QRP, each year you must show the Belize Tourism Board QRP representative that you transferred $24,000 during the year, which can be transferred as $2000/month, each month, for a given year. You could become a QRP and live in Belize for a year. But if you don’t prove, at the end of that year, that you made the transfers into Belize, then they will not renew your QRP card. The $2000/month is not as important as the $24,000 total per year. If you want to transfer $4000 every 2 months, that’s ok, as long as you meet the $24,000/year minimal transfer requirement.