Advisers brief Fitchburg on TID basics, state law changes and the new residential TID option

A June 24 briefing to Fitchburg's Committee of the Whole walked council members through how tax increment financing (TIF) works, changes in recent state law, and a newly created residential TID type that is tightly restricted.

Greg, the consultant from Ellers, began with the basics: when a TID is created the city keeps incremental tax revenue above a base value to fund eligible project costs within the district. He summarized that TID-eligible costs commonly include infrastructure, remediation, professional services and development incentives under pay-as-you-go agreements.

Turning to state law updates, Greg flagged two 2025 statutes active for municipalities: Act 173 (which expanded the affordable housing extension) and Act 235 (which created a residential TID type). He said Act 173 allows communities to collect up to two additional years of increment for affordable housing purposes (effective Jan. 1, 2028), and requires that at least 75% of those extended funds be used for statutorily defined affordable housing (housing that costs no more than 30% of gross monthly household income).

On the new residential TID (RTID), Greg said the statute limits eligible development to owner-occupied single-family homes and owner-occupied duplexes and imposes tight lot-size and building-size caps (for example, a single-story home maximum of 1,500 sq ft and two-story maximum of 2,000 sq ft). He said RTIDs are also excluded from the city's 12% incremental-value test and instead are subject to a separate 3% valuation test. The law forbids municipal borrowing within RTIDs, excludes developer land acquisition and on-site grading costs from eligibility, and in practice will push many RTID projects toward pay-as-you-go incentive structures.

Greg cautioned that the RTID rules are narrow and may not work for every site. "That math may not work depending on the particular circumstances," he said, noting that infrastructure extensions in greenfield areas can make payback periods long and may not generate sufficient increment to cover upfront costs.

Council members asked how compliance would be monitored and whether fee waivers (permit/impact fees) could be used; Greg recommended documenting eligibility and using separate funds for extended affordable-housing increment to support audit trails, and noted some fee-waiver statutes limit options for reimbursement through TID increment.

Why it matters: The changes alter how municipalities will weigh creating new TIDs versus amending existing districts. For Fitchburg, current TIDs created before Oct. 1, 2024 operate under the prior rules; the consultant emphasized that creating new TIDs under the changed statutory framework will generally yield smaller levy-limit benefits and different closure adjustments than older districts.

Next steps: Staff and council members discussed whether to pursue RTIDs in specific locations, use amendments to existing TIDs instead of creating a new district, and examine financing models on a case-by-case basis. The administration said it will incorporate the legal changes into future TID evaluations and bring specific proposals back for council consideration.