What is the car sales tax rate in Pennsylvania?

Pennsylvania's base vehicle sales tax is 6% of the purchase price. Allegheny County adds 1% for a 7% total, and Philadelphia adds 2% for an 8% total. The rate is set by where the buyer resides and registers the vehicle.

Does a trade-in reduce car sales tax in Pennsylvania?

Yes. Pennsylvania taxes the purchase price minus the value of a trade-in vehicle when you trade in to a licensed dealer. If you buy a $30,000 car and trade one worth $10,000, you pay tax on $20,000.

Is car sales tax based on price or value in Pennsylvania?

It is based on the purchase price you actually pay (the taxable amount after a dealer trade-in). For private sales, the tax is generally calculated on the sale price, though PennDOT may use fair market value if the stated price seems unreasonably low.

Do dealer rebates reduce the taxable amount?

In Pennsylvania, manufacturer rebates generally do NOT reduce the taxable price — you pay tax on the price before the rebate. Only a trade-in allowance reduces the amount subject to sales tax. This tool taxes the price you enter minus the trade-in.

Are document and title fees taxable in Pennsylvania?

Title fees and registration are not subject to sales tax, but a dealer's document (processing) fee generally is part of the taxable sale price. This calculator lets you add title and document fees to your total separately for clarity.

Pennsylvania Car Sales Tax Calculator

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The Pennsylvania Car Sales Tax Calculator tells you exactly how much sales tax you will owe when buying and registering a vehicle in Pennsylvania. The base rate is 6%, but where you live matters: Allegheny County adds 1% (7% total) and Philadelphia adds 2% (8% total). A trade-in lowers the taxable amount, so the tool factors that in too.

How it works

Pennsylvania taxes the purchase price after subtracting any dealer trade-in allowance, at the rate for your county of residence:

Taxable amount = purchase price - trade-in allowance   (floored at 0)
Sales tax = taxable amount x rate
  rate = 6% (most of PA) | 7% (Allegheny) | 8% (Philadelphia)

The all-in cost adds any optional title and document fees:

Total = purchase price + sales tax + title fee + document fee

A few Pennsylvania-specific rules the tool applies:

Trade-ins reduce tax when traded to a licensed dealer — a $30,000 car with a $10,000 trade-in is taxed on $20,000.
Manufacturer rebates do not reduce the taxable price in PA, so don’t subtract a rebate from the price you enter.
The county rate is based on where the buyer registers the vehicle, not where the dealer is located.

Tips and notes

Pick the right county. Choosing Philadelphia versus a 6% county changes the tax by 2 percentage points — on a $30,000 car that is $600.
Private sales are generally taxed on the sale price, but PennDOT can substitute fair market value if the declared price looks too low.
Title and registration fees are separate from sales tax — use a registration calculator for those recurring costs.
All calculations run in your browser; nothing you enter is stored or transmitted.