Money may be borrowed on notes, tax anticipation warrants, or other evidences of indebtedness on behalf of the local agency in an amount not to exceed 50 percent of:

1. (a) The revenue from taxes for the current fiscal year or that portion of the taxes not collected at the time of borrowing, where the borrowing is by a county, city, or municipal or public corporation or district, other than a school district, county board of education, or community college district.
2. (b) The estimated income and revenue for the current fiscal year or that portion not collected at the time of borrowing, where the borrowing is by a school district, county board of education, or community college district.