2 deals from $43,750 to $52,250 • Avg 15.2% off MSRP
As of , Illinois buyers are paying an average of $48,000 for a GMC Sierra 1500, based on 2 verified deals on CarWhere. The average discount in Illinois is 15.2% off MSRP. Prices range from $43,750 to $52,250.Illinois has a 6.25% state sales tax on vehicle purchases.
Sales Tax
6.25% state rate
Doc Fee
Max $377.63
Avg Markup
1-3% in Chicago metro, higher downstate
Best Time
End of month and end of year for best deals
Pro
Based on 2 verified buyer-submitted transactions. All prices come from real deal sheets uploaded after purchase — not estimates or dealer ads. Last updated . Learn about our data.