Security Deposit Interest

[Carolyn Guertin]

Hi BPs, 

I have a tenant moving out in Fort Worth, Texas and I want to calculate the interest owed on his security deposit. What is the current rate for Texas? Is there an easy way to calculate it down to the day? 

Also, the departing tenant will owe us a considerable sum above the security deposit for damages he willfully or negligently caused to the property. Should I and can I take him to court for the difference? 

Thanks,

Carollyn