By Allison Prang 



  Automatic Data Processing Inc. expects revenue to slip this fiscal year. 


  The company said it expects revenue for the fiscal 2021 year to fall between 1% and 4% from revenue of $14.59 billion in the last fiscal year. FactSet shows analysts are expecting $14.45 billion. 


  It is expecting its adjusted earnings to fall between 13% and 18% from the last fiscal year's $5.92 a share. Analysts are expecting earnings of $5.69 a share for the 2021 fiscal year. 


  ADP also expects its adjusted earnings before interest and taxes margin to fall about 300 basis points from the last fiscal year when it was 23%. 


  The company said it expects its adjusted effective tax rate to increase to 23.1%, up from 22.6% in the last fiscal year. 


  Write to Allison Prang at allison.prang@wsj.com