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How to Calculate 2017 Washington State Income Tax by Using State Income Tax Table

1. Find your income exemptions

2. Find your pretax deductions, including 401K, flexible account contributions ...

3. Find your gross income

4. Check the 2017 Washington state tax rate and the rules to calculate state income tax

5. Calculate your state income tax step by step

6. If you want to simplify payroll tax calculations, you can download ezPaycheck payroll software, which can calculate federal tax, state tax, Medicare tax, Social Security Tax and other taxes for you automatically. You can try it free for 30 days, with no obligation and no credt card needed.

Learn more about the in house payroll tax solution for Washington small businesses here.
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ezPaycheck: Small Business Payroll Solution


Washington State Tax Tables



How to Add a Paycheck
     Important Tax Due Dates>
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2008 Washington State Tax Witholding Table
2009 Washington State Tax Witholding Table
2010 Washington State Tax Witholding Table
2011 Washington State Tax Witholding Table
2012 Washington State Tax Witholding Table
2013 Washington State Tax Witholding Table
2014 Washington State Tax Witholding Table
2015 Washington State Tax Witholding Table
2016 Washington State Tax Witholding Table
2017 Washington State Tax Witholding Table
2018 Washington State Tax Witholding Table

Tax rate used in calculating Washington state tax for year 2017

Overview
Personal Income Taxes
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More Payroll Information for Washington Small Business

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  • How to handle pay-by-piece rate

  • How to enter the paychecks for after the fact payroll