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Common Tax Errors to Avoid

  • By The Mill Financial Partners
  • October 4, 2022

Our extended tax season is coming to a close, bringing a time of paperwork and planning to millions of Americans. In 2017, the Tax Cuts and Job Act (TCJA) became law, vastly changing the U.S. tax system.¹ In addition to navigating how the landscape may affect you financially, another tax priority to keep on your radar is attempting to avoid errors when filing.

Navigating the U.S. tax system can be challenging. Knowing how you need to file depends on your income and filing status as well as which tax breaks you can claim.² Your taxes are your responsibility, even if someone assists you in filing them.

As you prepare your taxes, here are some common filing errors to avoid. Keep in mind this white paper is for informational purposes only. It’s not a replacement for real-life advice, so make sure to consult your tax, legal, and accounting professionals before modifying your strategy. But remember, tax rules are constantly changing, and there is no guarantee that the treatment of certain existing rules will remain the same.

Error 1


Taxpayers must claim any income they received in a tax year. One area that some taxpayers overlook is claiming side money that is in addition to their normal salary. If you receive income from efforts outside your regular wages or self-employment, then you are obligated to report what you received.

This money usually isn’t reported on a 1099 or W-2 and can include income from the following sources (and more)³:

• Activity that won’t yield a profit, such as a hobby

• Barters for services or property

• Forgone interest from below-market loans

• Canceled debt, including discounts on mortgage loans

• Social Security benefits to spouses and dependents (subject to filing status and income)

• Unemployment compensation

But not all side money you receive is considered taxable. If you receive a financial gift from someone, like a family member, you do not have to claim this money as taxable income.⁴

Error 2


Tax breaks can manage the taxes you owe, or otherwise, change your liability, resulting in greater benefits for you. While deductions are one form of tax breaks, others include tax credits, exemptions, and certain tools designed to manage your tax burden.⁵

Here are some tax breaks worth keeping on your radar:

• Child and Dependent Care Tax Credit: This credit allows you to claim the childcare costs you have for children 12 years and younger. You can also claim expenses related to caring for a spouse or dependent who cannot physically or mentally care for ⁶

• Reinvested Dividends: This tax break could help you save money by not double-taxing dividends that you reinvested to buy more shares.⁷

 Appreciated Stock Donations: Donating stocks to nonprofits that you wish to support can financially help the organization while potentially lowering your tax. ⁸


• Not filing by the tax deadline

• Not paying owed taxes on time

• Not paying quarterly taxes, when needed

• Early withdrawals from 401(k)s and other tax-advantaged retirement accounts

• Non-qualified withdrawals from Health Savings Accounts, 529s, and other tax-favored accounts

 Excess payments to tax-favored accounts, such as IRAs

Source:, 2020

Error 3


Your filing status can greatly impact your taxes, because it defines your standard deduction and tax brackets.

A common reason people choose an incorrect status is when it changes during the tax year. Before filing your taxes, be sure that you’ve updated your tax paperwork to reflect any changes to your filing status.

The 5 different tax filing statuses are:

• Single: Taxpayers who aren’t married, are divorced, or are legally separated (as state laws dictate).

• Married Filing Jointly: Taxpayers who are married and will file a combined joint Widow(er)s can typically file a joint return within the first tax year of losing their spouse.

• Married Filing Separately: Taxpayers who are married and choose to file separate tax returns, which may or may not decrease their tax

• Head of Household: Taxpayers who are typically single and pay at least half of home expenses for themselves and a qualified

• Qualifying Widow(er) with a Dependent Child: Taxpayers whose spouses died within the past 2 years and have a dependent child, assuming other qualifications are ⁹

Changes to Filing Status

As your life changes, you can revise your filing status to match. However, if you’re amending previous years’ tax returns, you have limitations. For example, if your status is married filing separately, you can amend your returns to be married filed jointly, but not the other way around.¹⁰

Error 4


As stated earlier, taxpayers can claim dependents they are financially responsible for during a tax year. The IRS defines dependents as a “qualifying child” or “qualifying relative.”¹¹ As part of the 2017 Tax Cuts and Jobs Act, taxpayers can no longer claim personal exemptions for each dependent, they can miss out on other tax benefits by incorrectly or forgetting to claim a dependent. Be aware that if you have a blended family, in which you share children with another taxpayer, you could end up accidentally claiming children when only one parent would be able to do so.¹²

Here are some tips to help you claim dependents ¹³ ¹⁴ :

• Age Cap: Dependents must be younger than 17 years old at the tax year’s end.

• Claims Cap: Only one taxpayer at a time can typically claim a dependent.

• Same Residence: The claimed dependent must live with the taxpayer for more than 6 months of the same year.

• Proof of Records: Having school and medical records on hand will help prove you live at the same address.

New Credit for Dependents

One new tax credit available is referred to as the Credit for Other Dependents. To claim this credit, taxpayers must support dependents who are either:

• Their children, aged 17 years and older (at end of the tax year)

• Their parents

• Other qualifying relatives

However, this credit is only for taxpayers not claiming dependents under the Child Tax Credit, so be sure to correctly file this detail.¹⁵


28% getting audited

21% needing to pay more

11% not getting the full refund they believe they deserve

11% going to jail

8% paying more taxes than necessary

8% paying a fine for perjury

2% something else

11% not worried about anything

Source: Nerdwallet Tax Survey, 2018

Error 5


Your paperwork is crucial for filing taxes correctly and includes everything from your pay slips to receipts. Beyond helping you file taxes, your documents also serve as proof for the claims you make on your return. Should the IRS find any errors or choose to audit you, you’ll need this record to back up the numbers.

Here is a partial list of items to have on hand for verifying your financial records ¹⁶:

• Receipts: You’ll need receipts to prove any tax breaks you’re claiming, including transportation and any volunteer work.

• Mileage: Keep track of the miles you spend driving for things like volunteering, business meetings, or medical appointments. You also want to document any parking fees, bus or taxi fares, and tolls that you had to pay for those efforts.

• Documents on Life Events: Store important documents that relate to any life events you’re including in your tax claims, such as:

• Adoptions

• Child custody arrangements

• Divorce

• Marriage

• Spousal death

• Medical Records for Home Improvements: If you renovated your home due to medical reasons, such as installing a wheelchair ramp, be sure to keep these medical and expense records.

The suggested timeframe for storing your records (and corresponding tax returns) is between 7 and 10 years. We suggest consulting your tax professional for additional perspectives.¹⁷

Error 6


Your or your family’s income is the defining foundation for how much you’ll pay in federal taxes. Depending on the total you’re reporting, the IRS will tax you at different rates.

The TCJA redefined the income brackets people claim when filling¹⁸:

Rate Single Filers Married Filed Jointly

10% $0 – $9,700 $0 – $19,400

12% $9,701 – $39,745 $19,401 – $78,950

22% $39,746 – $84,200 $78,951 – $168,400

24% $84,201 – $160,725 $168,401 – $321,450

32% $160,726 – $204,100 $321,450 – $408,200

35% $204,101 – $510,300 $408,201 – $612,350

37% $510,301+ $612,351+

To know your tax bracket, it helps to do calculations before you file. You’ll need to identify your taxable income by¹⁹:

Adding together your earned and investment income

Subtracting from that total any adjustments and deductions


Filing your taxes can be a complex responsibility, and accidental errors can be easy to make. By being diligent, carefully strategizing, and keeping tight records, you can improve your ability to file taxes without mistakes. Even if you’re choosing to work with a tax professional, you are responsible for making sure you correctly file your financial details.

Remember, if you have any questions about your financial life, we’re here to help you navigate a complicated landscape. We always welcome conversations to collaborate with your tax professionals to align the strategies you take across your financial priorities.



The Mill Financial Partners is not a subsidiary of affiliate of MML Investors Services, LLC, or its affiliated companies. William (Alan) Franks is a registered representative of and offers securities and investment advisory services through MML Investors Services, LLC, Member SIPC. 1050 Crown Point Pkwy Suite 1800 Atlanta, GA 30338 770.551.3435

The content is developed from sources believed to be providing accurate information. The information in this material is not intended as tax or legal advice. Please consult legal or tax professionals for specific information regarding your individual situation.

Information current as of June 25, 2020.

Opinions, estimates, forecasts, and statements of financial market trends that are based on current market conditions constitute our judgment and are subject to change without notice.

This material is for information purposes only and is not intended as an offer or solicitation with respect to the purchase or sale of any security.

Investing involves risk, including the potential loss of principal. No investment strategy can guarantee a profit or protect against loss in periods of declining values.

The Standard & Poor’s 500 Index is a capitalization-weighted index of 500 stocks designed to measure performance of the broad domestic economy through changes in the aggregate market value of 500 stocks representing all major industries.

All indexes are unmanaged and cannot be invested into directly.

Opinions expressed are not intended as investment advice or to predict future performance. Past performance does not guarantee future results.

Consult your financial professional before making any investment decision.

All information is believed to be from reliable sources; however, we make no representation as to its completeness or accuracy. Please consult your financial advisor for further information.

These are the views of Platinum Advisor Marketing Strategies, LLC, and not necessarily those of the named representative, broker/dealer or investment advisor and should not be construed as investment advice.



1, 2020

2, 2019

3, 2020

4, 2020

5, 2018

6, 2019

7 Kiplinger, 2019

8, 2019

9, 2019

10, 2019

11, 2020

12 The Balance, 2019

13 The Balance, 2019

14, 2019

15, 2019

16, 2020

17, 2019

18, 2018

19, 2020

William Franks is a registered representative of and offers securities and investment advisory services through MML Investors Services, LLC. Member SIPC. ( The Mill Financial Partners is not a subsidiary or affiliate of MML Investors Services, LLC, or its affiliated companies. 1050 Crown Pointe Pkwy, Suite 1800, Atlanta, GA 30338. 770-551-3400.

The views and opinions expressed are those of William Franks. Williams Franks views are not necessarily those of MML Investors Services, LLC or it’s subsidiaries.


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