The total Recurring Spend amount is wrong when I choose one of the last days of the month as my billing date

Cause:

Recurring expenses repeat on the exact date of the month. So a monthly expense billed on the 1st of the month will recur on January 1st, February 1st, March 1st, etc. A monthly expense billed on the 29th, 30th, or 31st of the month will only recur on months with those dates (Jan 31, Mar 31, May 31, etc.).

Resolution:

Avoid choosing the 29th, 30th, and 31st dates. A warning is shown on the web app for these situations.