Understanding If You Owe Taxes This Year

Quick answer

• Your tax liability depends on your income, filing status, deductions, and credits.
• If your withholding or estimated payments exceed your total tax due, you’ll get a refund.
• If your withholding or estimated payments are less than your total tax due, you’ll owe taxes.
• Significant underpayment can lead to penalties.
• Reviewing your W-4 and making estimated tax payments can help avoid surprises.
• Consult a tax professional for personalized advice.

What to check first (before you file or change withholding)

Filing Status

Your filing status significantly impacts your tax bracket, standard deduction, and eligibility for certain credits. The most common statuses are Single, Married Filing Separately, Married Filing Jointly, Head of Household, and Qualifying Widow(er).

• What to check: Ensure you are using the correct filing status based on your marital and family situation.
• What “good” looks like: You’ve confidently identified the filing status that offers the most tax benefit or accurately reflects your circumstances.
• Common mistake: Using an incorrect status, such as filing as Single when you are married, can lead to overpaying or underpaying taxes.

Income Sources

Taxes are generally owed on all income earned, which includes wages, salaries, tips, self-employment income, interest, dividends, capital gains, and certain other types of income.

• What to check: Gather all documentation for all income received throughout the tax year, including W-2s, 1099 forms, and any other relevant statements.
• What “good” looks like: You have a complete list of all income sources and their corresponding amounts.
• Common mistake: Forgetting to report all income, especially from side hustles or freelance work, can result in penalties and interest.

Withholding or Estimated Payments

For W-2 employees, taxes are typically withheld from each paycheck based on the information provided on your W-4 form. Self-employed individuals and those with significant income not subject to withholding (like investments) may need to make estimated tax payments quarterly.

• What to check: Review your pay stubs to see how much tax is being withheld. If you’re self-employed, track your income and expenses to estimate your tax liability.
• What “good” looks like: Your withholding is set to closely match your expected tax liability, or your estimated payments are on track.
• Common mistake: Not adjusting your W-4 after a life change (marriage, new child, new job) or failing to make timely estimated tax payments can lead to owing a large sum at tax time.

Deductions and Credits

Deductions reduce your taxable income, while credits directly reduce your tax liability. Understanding which ones you qualify for can significantly lower your tax bill. Common deductions include those for student loan interest or IRA contributions. Credits can range from the Child Tax Credit to education credits.

• What to check: Research potential deductions and credits you might be eligible for based on your expenses, life events, and investments.
• What “good” looks like: You’ve identified all applicable deductions and credits and have the necessary documentation to support them.
• Common mistake: Overlooking eligible deductions and credits means paying more tax than necessary.

Deadlines and Extensions (General)

The primary tax filing deadline in the U.S. is typically April 15th. If this date falls on a weekend or holiday, the deadline shifts to the next business day. You can request an extension to file, but this does not extend the time to pay any taxes owed.

• What to check: Be aware of the current year’s tax filing deadline.
• What “good” looks like: You’ve filed your taxes or requested an extension before the deadline.
• Common mistake: Missing the filing deadline without requesting an extension can result in penalties.

Step-by-step (simple workflow)

1. Gather Income Documents: Collect all W-2s, 1099s (for freelance, interest, dividends, etc.), and any other income statements.

• What “good” looks like: You have every document detailing income earned during the tax year.
• Common mistake: Missing a 1099-NEC or 1099-MISC for freelance work.
• Avoid it by: Keeping a running log of all income sources and checking your bank deposits against what you expect.

2. Determine Filing Status: Choose the correct filing status (Single, Married Filing Jointly, etc.) that best suits your situation.

• What “good” looks like: You’ve selected the filing status that is accurate and potentially most beneficial.
• Common mistake: Filing as Single when you are married and could benefit from Married Filing Jointly.
• Avoid it by: Reviewing the IRS definitions for each status and consulting a tax professional if unsure.

3. Calculate Total Income: Sum up all sources of income from your gathered documents.

• What “good” looks like: You have a single, accurate figure for your gross income.
• Common mistake: Inadvertently excluding certain income streams.
• Avoid it by: Double-checking your additions and ensuring all income statements are accounted for.

4. Identify Deductions: Determine if you will itemize deductions or take the standard deduction. Research eligible itemized deductions (e.g., medical expenses above a threshold, state and local taxes, mortgage interest, charitable contributions).

• What “good” looks like: You’ve chosen the deduction method that results in the largest reduction of your taxable income.
• Common mistake: Forgetting to track deductible expenses throughout the year.
• Avoid it by: Keeping receipts and a ledger for potential deductions like medical bills or charitable donations.

5. Calculate Taxable Income: Subtract your total deductions (standard or itemized) from your total income.

• What “good” looks like: You have a clear figure for the income the IRS will use to calculate your tax.
• Common mistake: Miscalculating the difference between income and deductions.
• Avoid it by: Using tax software or consulting a tax professional to ensure accuracy.

6. Determine Your Tax Liability: Use the appropriate tax brackets for your filing status to calculate your initial tax amount based on your taxable income.

• What “good” looks like: You have an accurate calculation of the tax owed before considering credits.
• Common mistake: Applying the wrong tax brackets or making calculation errors.
• Avoid it by: Using current IRS tax tables or reliable tax software.

7. Apply Tax Credits: Subtract any eligible tax credits from your calculated tax liability.

• What “good” looks like: You’ve reduced your tax bill by every credit you qualify for.
• Common mistake: Not knowing about or claiming credits you’re entitled to, such as education or child-related credits.
• Avoid it by: Researching common federal tax credits and checking your eligibility.

8. Calculate Tax Due or Refund: Compare your total tax liability (after credits) to the amount of tax already withheld from your paychecks or paid through estimated taxes.

• What “good” looks like: You have a clear picture of whether you owe more or are due a refund.
• Common mistake: Assuming your withholding is always accurate.
• Avoid it by: Performing this calculation before finalizing your return.

9. Make Payments (If Owed): If you owe taxes, ensure payment is made by the tax deadline.

• What “good” looks like: Your tax payment is submitted on time.
• Common mistake: Waiting until the last minute and encountering payment issues.
• Avoid it by: Using IRS online payment options or mailing a check well before the deadline.

10. File Your Tax Return: Submit your completed tax return to the IRS by the deadline (or extension deadline).

• What “good” looks like: Your return is filed accurately and on time.
• Common mistake: Filing an incomplete or inaccurate return.
• Avoid it by: Double-checking all information and using tax preparation software or a professional.

Common mistakes (and what happens if you ignore them)

| Mistake | What it causes | Fix