Gilbert, Arizona bond ratings affirmed at AAA by Fitch with stable outlook

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Gilbert bond ratings affirmed

Highlights

Fitch affirmed Gilbert, Arizona's 'AAA' issuer default and general obligation bond ratings with a stable outlook, citing 'aaa' financial resilience and unrestricted general fund reserves above 7.5% of spending.
Municipal Property Corporation revenue bonds received an 'a' Revenue Risk assessment and 'aaa' resilience due to strong pledged revenue growth and ample debt service coverage under stressed scenarios.
Potential downgrades include general fund reserves below 7.5% of spending or materially higher long-term liabilities, while unlimited tax bonds are protected by a statutory lien on ad valorem taxes under Arizona law.

Rating rationale and reserve strength

As reported by Fitch Ratings, the town's 'AAA' issuer default rating and general obligation bond rating reflect 'aaa' financial resilience, supported by ample budgetary flexibility and an assumption that unrestricted general fund reserves remain at no less than 7.5% of spending.

Fitch also says the rating incorporates Gilbert's rapid population trend, very strong demographic and economic metrics, and midrange long-term liability measures. For the Municipal Property Corporation revenue bonds, the agency assigns a Revenue Risk assessment of 'a', citing the broad-based nature of pledged revenues, an expectation of moderate revenue volatility and strong growth.

Resilience for the MPC bonds is assessed at 'aaa', reflecting ample maximum annual debt service coverage under Fitch-stressed scenarios. The MPC rating is capped at the town's issuer default rating.

Downgrade triggers and bondholder protections

Fitch says factors that could lead to negative rating action on the issuer default rating include a sustained decline in available general fund reserves below 7.5% of spending, a material increase in the long-term liability burden beyond currently planned debt, or an inability to manage growth-driven capital funding pressures, including future water security needs.

No positive rating action is applicable at the current 'AAA' level. Fitch notes that Gilbert's general obligation bonds are direct obligations of the town and are payable from ad valorem taxes levied on all taxable property within the municipality, without limit as to rate or amount.

Under Arizona law, holders of unlimited tax bonds have a statutory lien on ad valorem taxes of cities, towns, counties, school districts, community college districts and various special districts. Fitch says that protection gives bondholders a substantial preferential right in a bankruptcy proceeding, supporting a ULT bond rating of up to two notches above an entity's issuer default rating, although the lien applies only to ad valorem tax revenues.

Dallas Area Rapid Transit’s AAA-rated senior lien sales tax revenue bonds were previously covered in our publication, highlighting how a dedicated 1% voter-authorized sales and use tax is pledged on a gross-lien basis to prioritize debt service before operating funds. We also noted that conservative 2.0x coverage tests for additional borrowing help preserve a high-grade credit profile, reinforcing market access and investor confidence in future capital funding.

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