Utahns have been itemizing less on their federal tax returns, with the notable exception of deductions for religious and charitable contributions, according to the Utah Tax Commission.

Itemized deductions for the last year available, 1987, were down 8 percent overall by residents of the state. Commission analysts say the loss of the sales tax deduction contributed to that decline. In addition, interest payment deductions dropped off 10 percent.But one deduction category bucked the trend. Deductions for religious and charitable contributions were up 7 percent.

In 1987, Utahns claimed $644.3 million in those contributions.