American Fork's impact fees haven't changed since 2017. Collections have fallen 90%.

American Fork's impact fees, the one-time charges on new construction that pay for growth-related roads, water lines, parks and public safety, are the same today as in the city's 2020 fee schedule. They were last set by an ordinance that took effect in October 2017. ^[1][2][3]

A single-family home outside the transit district currently pays $3,548.30 for roads, $3,855.99 for parks, $2,502.45 for culinary water, $840.08 for sewer, $429.30 for fire and $326.45 for police, plus storm drain and irrigation fees based on lot size. ^[1]

Collections and balances

Impact fee revenue in the city's governmental funds rose to $12.78 million in fiscal 2022 during the building boom, then fell to $6.65 million in 2023, $2.56 million in 2024 and $1.32 million in 2025, according to the annual reports. ^[4]

The city's restricted impact fee balance in those funds peaked at $38.1 million in June 2023 and was $16.8 million in June 2025 as the city spent it on projects. ^[4][5]

Utah law requires impact fees to be spent or encumbered within six years, or refunded on request. The city's annual reports don't show how much of the balance comes from each year. The storm drain fund's restricted impact fee balance was listed at exactly $1,228,040 for three straight years while the fund collected new fees. ^[3][4]

The update

New impact fee studies by Zions Public Finance and Horrocks went to a council work session in June 2026. They would raise the maximum for a single-family home from about $12,700 to about $16,700. No vote has been recorded. A 2020 update was started but not adopted. ^[6]