I just sold my old personal pickup that I used for doing construction side jobs because it was getting to the point where it wasn’t reliable for my personal life.

I plan on buying a newer truck anyway because it is needed in my personal life.

Assuming my projected income is $15,000/year from the side business, am I shooting myself in the foot tax wise by not waiting for the start of new year?

I would like to be able to write off a portion the sales tax and down payment if possible.

It will have a gvwr over 6,000 if that matters.

Thanks!