Finance Calculators
Delaware Sales Tax Calculator
Work out the sales tax on a price in Delaware. The state rate is 0.00%; local jurisdictions may add up to 0.00% more, so the highest combined rate that can be charged in Delaware is 0.00%.
Calculator
Formula Used
Add Tax: Amount × (1 + Rate/100). Remove Tax: Amount ÷ (1 + Rate/100).
About This Calculator
What It Does
This page applies the state's own rate for Delaware, 0.00%, and shows the local ceiling the Tax Foundation publishes for the state: local jurisdictions may add up to 0.00%, which puts the highest combined rate at 0.00%. Enter an amount, then add the tax to it or take the tax out of it — the state is already selected.
Worked Example
At the Delaware state rate of 0.00%, a purchase of $100.00 carries $0.00 in tax and costs $100.00. If local taxes apply at the state's ceiling, the combined rate reaches 0.00% and the same purchase carries $0.00 in tax, for a total of $100.00.
Real-World Usage
Use this page to see what a purchase really costs in Delaware before you pay, to price an item including the tax a buyer in Delaware will pay, or to check how far local taxes can push the rate above the state's own 0.00%. Rates change — several states adjust theirs every year — so treat these figures as the 2026 reference.
Local Context
The state's own rate for Delaware is 0.00%, and the state lets local jurisdictions add up to 0.00% on top of it, so the highest combined rate that can be charged in Delaware is 0.00%. Local rates vary by city, county and district and can change during the year; some states also exempt categories such as groceries or clothing.
Sources and Methodology
State and local sales tax rates: Tax Foundation, "State and Local Sales Tax Rates, Midyear 2026", column "Max Local Rate" (rates as of 1 July 2026, tax year 2026). The rate this page applies comes from the same table the calculator's state list uses.
Last reviewed: May 2026.
Tax rates are for general reference only. Actual rates may vary by county, city, or product category. Always verify with your local tax authority.
Frequently Asked Questions
What is the sales tax rate in Delaware?
The Delaware state rate is 0.00%. Local jurisdictions may add up to 0.00% more, so the highest combined rate is 0.00%. Many addresses charge less than that ceiling.
How do I add sales tax to a price in Delaware?
Multiply the price by one plus the rate: an item of $100.00 at the Delaware state rate of 0.00% comes to $100.00, of which $0.00 is tax. Use the calculator above to switch between adding tax to a net price and taking tax out of a gross price.
Which rate should I use if I do not know the local rate in Delaware?
Start from the state rate, 0.00%, and add the local rate that applies where the sale happens. If you do not know it, the state's maximum local addition is 0.00%, which sets the ceiling that can be charged in Delaware at 0.00%.