I-1 - Preliminary Official Statement Series 2021A Refunding

Tax Rates1 Following are tax rates per thousand-dollar valuations for the past five-assessable/collection years: Levy Year/ 2015 for FY 2016 for FY 2017 for FY 2018 for FY 2019 for FY Collection Year 2016/17 2017/18 2018/19 2019/20 2020/21 Johnson County 6.77140 6.85143 6.53594 6.49278 6.34581 City of Tiffin 11.80265 11.80227 11.80205 11.80689 11.80802 Clear Creek Amana CSD 16.95419 16.75949 16.77663 16.76460 17.26011 Kirkwood Community College 1.08048 1.13174 1.20354 1.21331 1.25730 County Assessor 0.29377 0.31448 0.31212 0.28114 0.28010 Ag Extension 0.07781 0.07585 0.07080 0.07039 0.06861 State 0.00330 0.00310 0.00290 0.00280 0.00270 Totals: 36.98360 36.93836 36.70398 36.63191 37.02265 Tax Levies and Collections Total Total Collections as Tax Levy Tax Percent of Assessment Year Collection Year (in Dollars) Collections Current Levy 2019 2020/2021 $3,622,206 (In Process of Collection) 2018 2019/2020 3,136,875 $3,147,119 100.33% 2017 2018/2019 2,861,388 2,805,470 98.05 2016 2017/2018 2,364,844 2,366,440 100.00 2015 2016/2017 2,035,618 2,031,253 99.79 2014 2015/2016 1,730,788 1,755,579 101.43 [remainder of page left blank intentionally] 1 The 2020 for FY 2021/2022 Tax Rates are not available until approximately June 1, 2021, six months after the 2021/2022 valuations are available from the State of Iowa Department of Valuations. A-10