Common Tax Filing Mistakes and How To Avoid Them

Filed your tax return and now second-guessing it? Common mistakes include choosing the wrong filing status, miscalculating totals, filing too early or forgetting to report income. Taking time to review your return can help you catch errors and avoid delays or IRS notices.

Common Tax Filing Mistakes

Everyone who files their tax return wants to get their refund as soon as possible. Avoid these filing mistakes so you get your refund on time.

Choosing the Wrong Filing Status

You can choose from one of five filing statuses when submitting your tax return: 

1. Single

2. Married filing jointly

3. Married filing separately

4. Head of household

5. Qualified surviving spouse

If you file using the wrong status, it can impact:

• Your tax bracket

• The amount you can deduct

• The number of credits you claim

• The amount that’s refunded or the amount that you owe

Math Errors and Mismatched Numbers

Whether you DIY your taxes or use software, double-check your numbers. Simple math mistakes or mismatched figures can delay your return or trigger IRS notices.

Even with software, it’s smart to review income amounts, Social Security numbers and totals before submitting your return.

Incorrect Personal or Banking Information

It’s easy to mix up numbers when filling out your return. Double-check your direct deposit information, including the routing number and the bank account number, so your tax refund is timely.

In addition, look over your Social Security number, as well as your personal details.

Identity verification is important for your tax return — it could mean the difference between getting your refund sooner rather than later.

Missing or Incomplete Income Reporting

One of the most common mistakes on a tax return is underreporting income. The IRS receives a W-2, so if you make a mistake, your return will be quickly flagged.

While a W-2 comes from your employer, a 1099 comes from freelance or contract work. Even in the case of a 1099, the IRS will receive this form.

If the tax return numbers don’t match what the IRS shows in their records, you may get a notice.

Claiming Deductions or Credits You Don’t Qualify For

Many filing errors happen when taxpayers misunderstand how deductions and credits work.

• Standard vs. itemized: You must choose one or the other. You can’t itemize your deductions if you’ve chosen the standard deduction.

• Credits vs. Deductions: Your deductions will lower your taxable income. Credits directly reduce your taxes.

Pro Tip

Keep invoices, receipts and other documentation that are relevant to your return. If you cannot back up the information on your return, your claim may be denied.

Filing Timing Mistakes

It’s best to file your taxes once all of your forms arrive.

• Filing too early may mean you have to file an amended return.

• Filing at the last minute increases the risk of math errors or overlooking valuable deductions.

Keep in mind that an extension to file doesn’t mean you delay paying your taxes. You should pay your taxes on time, otherwise you will face a penalty.  

How To Reduce Tax Filing Mistakes

Before you file, look at this checklist to avoid common mistakes:

• Don’t file until you have received all of your forms: If you file too early, you may have to file an amended return.

• Verify your identification information: Make sure your Social Security number and other identifying information are correct.

• Check your math: Double-check your numbers and look over the math.

• Choose the correct filing status: Make certain you choose the correct filing status.

• Check your signature: Sign your return before filing.

• Note your direct deposit information: Check your bank’s routing number and account number to be sure they are correct.

Key Takeaways

• Choose the correct filing status. Failure to do so can severely impact your tax return.

• Review your tax return for any math errors.

• Don’t file your tax return too early. Doing so may result in filing an amended return.

• Be sure to keep good records and documentation in case you face an IRS audit.

Tax Filing Mistakes FAQs

If you’re worried about a mistake on your tax return, these FAQs explain your options and next steps.

What happens if you make a mistake on your taxes?

If you make a minor mistake, you can file an amended return. If the error is quite complicated, it may require further action.  

Can you fix a mistake after filing?

You can fix a mistake by filing an amended return, like a 1040-X. Errors may include mistakes in filing status or missed deductions.

Do mistakes delay tax refunds?

It’s possible that your tax refund may be delayed. A minor error may not cause that much of a delay. Missing forms or wrong information may require a more thorough review. If your identity cannot be verified, this may cause a longer delay.