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KCMO Finance Department reveals top 10 mistakes e-tax filers make

Before you hit the button on your earnings tax return, which is due April 18, the KCMO Finance Department suggests you take a look at 10 common mistakes that filers make annually when preparing their returns.

They are:

  • Failure to complete the tax return
  • Failure to enter the taxpayer’s complete and/or correct Social Security number
  • Failure to double check math calculations
  • Failure to file individually (KCMO does not allow for jointly filed returns)
  • Failure to clearly print taxpayer’s name, current address, including zip code directly on the tax return
  • Failure to sign and date the tax return
  • Failure to attach required items to the tax return such as W-2 or 1099
  • Failing to get written confirmation from the tax preparer that an electronically filed KCMO earnings tax return was accepted
  • Failure to include on the tax payment the taxpayer’s Social Security number, the tax year and the number of the form the taxpayer is filing
  • Failure to prorate correctly or failure to subtract the income received during the period of non-residence

Errors on tax returns can delay processing times and issuance of refunds. Finance officials are urging taxpayers to file all tax returns electronically because it is faster and ensures fewer errors. Taxes may be filed and paid online on the City’s Quick Tax system.

The earnings tax generates revenue that pays for a variety of basic city services such as road maintenance and weekly trash collection. Revenue from the earnings tax also pays for police officers, firefighters, paramedics and ambulance services. This revenue also helps fund snow removal, codes inspection, historic preservation and other city needs.

If you live, work or run a business in Kansas City, Missouri, then you have to pay e-taxes.

In addition to the 10 mistakes already listed, there are common errors affecting withholding and estimated tax as well, such as:

  • Failure to attach W-2s and 1099s or filing without all of the W-2s and 1099s
  • Claiming estimated tax that was not paid or paid to the IRS or another taxing jurisdiction
  • Failure to designate overpayment as a carry forward resulting in the issuance of a refund

A couple of other mistakes made by taxpayers are:

  • Overstating extension payment or not making it at all
  • Failure to check form as an amended return (KCMO system enters as a duplicated return)

Answers to frequently asked questions about earnings taxes can be found online. 

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