Used Car Sales Tax, which value is the 6.25 being calculated?

I know that in Texas 6.25 is the charge that the DMV charges on used car sales tax, but which value is it on? Trade-in, Private party, or suggested retail? Also which is the condition they consider excellent, good, or fair?|||on the "net" difference before fees tag etc.|||The tax is calculated on what you actually paid for the vehicle. Or price given to you for your trade plus what you paid for the vehicle if a trade applies.|||the 6.25 % tax is on everything, uncle sam gotta get paid.


Q2) Condition of a vehicle @ trade in is a totally RELATIVE and SUBJECTIVE judgement. do you remember the song " I say potato, you say po-tah-t-ohh". So if you think that a buyer (or dealer) is under rating your cars (trade-in) value, you can always seek another opinion. But remember you might get the same answer again.