Kentucky Weight Distance number (KYU) is a required permit for any carrier over 59,999 pounds traveling in Kentucky. 
 
The KYU number is a tax license issued for the Kentucky Weight Distance Tax. Any motor carrier 60,000 pounds or greater traveling Kentucky is subject to this tax. Right now the tax is computed at $0.0285 cents per mile. 
 
Once you have the number issued, you will need to file your KYU quarterly taxes in a timely manner to keep your license in good standing.  The quarterly reports are due the last day of the month following the end of the quarter.  When applying, you have the option of filing the quarterly reports yourself, or having Interstate Authority file your reports electronically.