Losing a spouse is an emotionally difficult experience, and the legal and financial matters that follow can feel overwhelming; however, certain tax obligations must be addressed to ensure compliance with state and federal laws. One of the most important responsibilities is filing your spouse’s final tax return. Additionally, their passing may have tax implications for your own finances and estate plan that may require attention. To help you get started, an attorney at Thompson Law explains the tax filings necessary following the death of a spouse and why it is important to update your estate plan accordingly.
Filing Your Spouse’s Final Tax Return
One of the primary tax-related tasks you must handle after a spouse’s passing is filing their final individual income tax return. While it is always advisable to work with a tax professional, the Internal Revenue Service (IRS) provides helpful guidance on how to proceed. The final return generally follows the same rules as if your spouse were still alive and should include:
- Income: All income earned up until the date of death, along with any applicable deductions and credits.
- Prior year taxes: Any prior year tax returns that were not filed before their passing. If your spouse had outstanding tax returns from previous years, you or the estate representative may be responsible for filing them.
- The appropriate filing status: The IRS considers you married for the entire year if you did not remarry before the end of that tax year. As a surviving spouse, you may file as “married filing jointly” or “married filing separately.” Filing jointly can be beneficial, as it often provides more deductions and lower tax rates.
- The standard tax deadlines: The final tax return is due by the typical deadline for individual tax returns, April 15 of the following year, unless an extension is requested. For example, if your spouse passed in 2025, their final tax return is due by April 15, 2026.
- Proper notation and signature requirements: When filing a paper return, you must write “deceased” along with your spouse’s name and the date of death at the top of the form. If filing electronically, follow the tax software’s instructions for proper notation.
If an Executor or Personal Representative has been appointed for your spouse’s estate, that person is responsible for signing the tax return; however, if no one has been formally appointed, you may sign the return as the surviving spouse. If you are filing jointly, you must sign the return as well.
Estate and Gift Tax Considerations
In addition to personal income taxes, federal estate and gift taxes may apply if your spouse left behind significant assets. The IRS requires the filing of Form 706 if the estate is subject to federal estate taxes. For 2024, the lifetime exemption amount was $13.61 million, increasing to $13.99 million for 2025. This means that estate taxes are only due if the total value of the estate, combined with any taxable gifts made during your spouse’s lifetime, exceeds this exemption. If the estate falls below this threshold, estate taxes are not owed, but filing may still be necessary to elect portability.
Portability allows a surviving spouse to claim any unused portion of their deceased spouse’s lifetime exemption. This can be an important tax-saving strategy, as it may significantly increase the amount of assets that can pass tax-free to heirs in the future; however, to take advantage of portability, you must file Form 706 within nine months of your spouse’s death, unless an extension is granted.
Additionally, if your spouse’s estate relied on the marital deduction to avoid immediate estate tax liability, it is important to revisit your own estate plan. Assets that pass to a surviving spouse typically do so tax-free under the unlimited marital deduction, but this can lead to an overfunded estate. Without proper planning, your own estate may exceed the exemption limit, potentially triggering substantial estate taxes for your beneficiaries.
State Taxes and Other Considerations
In addition to federal taxes, some states impose their own estate or inheritance taxes, including Minnesota. North Dakota does not impose state level estate taxes. Even if your spouse’s estate does not owe federal estate taxes, there may be state-level tax obligations if your spouse was a Minnesota resident. Consulting with a probate attorney and/or tax professional can help determine if any state taxes must be paid. If your spouse owned a business or had investments, there may be additional tax considerations, such as capital gains taxes, business tax filings, or real estate tax obligations. Assets held in retirement accounts, such as an IRA or 401(k), may also have tax implications depending on how they are inherited.
Reviewing Your Own Estate Plan
The death of a spouse often necessitates updates to your own estate plan. Changes may be needed to your Will, trust, beneficiary designations, and tax planning strategies. If you relied on a joint estate plan, you may need to create a new plan that reflects your current financial situation and goals. Additionally, if your spouse was named as your Executor, Trustee, or Power of Attorney, you must update these designations to ensure someone else can handle your affairs if you are ever unable to do so yourself because of incapacity.
The Importance of Professional Guidance
The death of a spouse brings unique emotional, practical, and legal challenges that require careful attention. Moreover, tax laws can be complex and difficult to understand under the best circumstances. To ensure compliance with tax requirements and to make informed decisions about your financial future, it is wise to seek guidance from an experienced estate planning attorney if you are responsible for paying tax obligations related to the death of a spouse. Proper planning can help you navigate this difficult time while minimizing tax liabilities and securing your financial well-being.
Can We Help You with Tax Filing Requirements Following the Death of Your Spouse?
Please join us for an upcoming FREE seminar or webinar. If you recently lost your spouse and would like assistance with the tax filing requirements that follow the death of a spouse, contact a North Dakota and Minnesota estate planning attorney at Thompson Law by calling 605-362-9100 to schedule an appointment.
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