135.030.  Formula for determining credits — table to be prepared by director of revenue — taxpayer not applying for credit to be notified of eligibility. — 1.  As used in this section:

  (1)  The term "maximum upper limit" shall, for each calendar year after December 31, 1997, but before calendar year 2008, be the sum of twenty-five thousand dollars.  For all calendar years beginning on or after January 1, 2008, the maximum upper limit shall be the sum of twenty-seven thousand five hundred dollars.  In the case of a homestead owned and occupied for the entire year by the claimant, the maximum upper limit shall be the sum of thirty thousand dollars;

  (2)  The term "minimum base" shall, for each calendar year after December 31, 1997, but before calendar year 2008, be the sum of thirteen thousand dollars.  For all calendar years beginning on or after January 1, 2008, the minimum base shall be the sum of fourteen thousand three hundred dollars.

  2.  If the income on a return is equal to or less than the maximum upper limit for the calendar year for which the return is filed, the property tax credit shall be determined from a table of credits based upon the amount by which the total property tax described in section 135.025 exceeds the percent of income in the following list:

­­

­

The director of revenue shall prescribe a table based upon the preceding sentences.  The property tax shall be in increments of twenty-five dollars and the income in increments of three hundred dollars.  The credit shall be the amount rounded to the nearest whole dollar computed on the basis of the property tax and income at the midpoints of each increment.  As used in this subsection, the term "accumulative" means an increase by continuous or repeated application of the percent to the income increment at each three hundred dollar level.

  3.  Notwithstanding subsection 4 of section 32.057, the department of revenue or any duly authorized employee or agent shall determine whether any taxpayer filing a report or return with the department of revenue who has not applied for the credit allowed pursuant to section 135.020 may qualify for the credit, and shall notify any qualified claimant of the claimant's potential eligibility, where the department determines such potential eligibility exists.