Contractor Supplies/ Tax write off for truck?

[Nicolas Ake]

Hello,

Is it common for the investor to be responsible for physically transporting supplies such as carpet and flooring to the job site or will a good GC do this?

If it is going to be my responsibility more often than not, would I be able to write off a new truck as a business expense? Even if I used this truck to commute to my other job?

Thank you