surtax
noun
sur·tax
ˈsər-ˌtaks 
1
: an extra tax or charge
2
: a graduated income tax in addition to the normal income tax imposed on the amount by which one's net income exceeds a specified sum
Examples of surtax in a Sentence
Recent Examples on the Web
For example, the Massachusetts ‘Millionaire’ Tax adds a 4% surtax to taxable income above the threshold, making tax deductions even more valuable for high earners in that state.
—
Kristin McKenna, Forbes.com, 25 Aug. 2025
Finally, a surtax on incomes of California’s wealthiest families, approved by voters in 2012 to deal with an earlier budget deficit, was supposed to last only a few years, but a 2016 ballot measure extended it to 2030.
—Dan Walters, Mercury News, 22 Aug. 2025
The payroll surtax could rise from the current $126 per employee to as high as $420.
—The Editorial Board, Oc Register, 5 Aug. 2025
The electric bus purchase was a pilot program funded partially through federal money and partially through a local transportation surtax.
—Rafael Olmeda, Sun Sentinel, 31 July 2025
See All Example Sentences for surtax
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Kristin McKenna, Forbes.com, 25 Aug. 2025
Finally, a surtax on incomes of California’s wealthiest families, approved by voters in 2012 to deal with an earlier budget deficit, was supposed to last only a few years, but a 2016 ballot measure extended it to 2030.
—Dan Walters, Mercury News, 22 Aug. 2025
The payroll surtax could rise from the current $126 per employee to as high as $420.
—The Editorial Board, Oc Register, 5 Aug. 2025
The electric bus purchase was a pilot program funded partially through federal money and partially through a local transportation surtax.
—Rafael Olmeda, Sun Sentinel, 31 July 2025
See All Example Sentences for surtax
Cite this Entry
“Surtax.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/surtax. Accessed 9 Sep. 2025.
Copy CitationKids Definition
surtax
noun
sur·tax
ˈsər-ˌtaks
: an additional tax over and above a general tax
Legal Definition
surtax
noun
sur·tax
ˈsər-ˌtaks
: an additional tax over and above a normal tax
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