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Cover
May 07, 2026
Document Type 8-K
Amendment Flag false
Document Period End Date May 07, 2026
Entity File Number 811-09243
Entity Registrant Name The Gabelli Utility Trust
Entity Central Index Key 0001080720
Entity Tax Identification Number 13-4046522
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One One Corporate Center
Entity Address, City or Town Rye
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10580
City Area Code 800
Local Phone Number 422-3554
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false
Common Shares of Beneficial Interest  
Title of 12(b) Security Common Share of Beneficial Interest
Trading Symbol GUT
Security Exchange Name NYSE
Series C Cumulative Preferred Shares  
Title of 12(b) Security Series C Cumulative Preferred Shares
Trading Symbol GUT Pr C
Security Exchange Name NYSE