Taxpayers who receive a penalty notice from the Mississippi Department of Revenue (MDOR) may face significant financial consequences in addition to their original tax liability. Penalties are commonly assessed for noncompliance issues such as late filing, failure to make estimated tax payments, or underpayment of tax by the statutory deadline. In certain circumstances, the MDOR allows taxpayers to request relief from these penalties through a process known as penalty abatement.

Penalty abatement is not granted automatically. To qualify, the taxpayer must demonstrate reasonable cause for noncompliance and show that the failure to meet tax obligations was not due to willful neglect. Acceptable justifications may include serious illness, natural disasters, or the unintentional loss of essential financial records. Although statutory interest typically continues to accrue on unpaid tax balances, the Department may consider partial or complete relief from penalties if the taxpayer can provide sufficient evidence of reasonable faith efforts to comply.

This guide outlines the process for requesting penalty abatement in Mississippi. It includes information on eligibility criteria, required supporting documentation, formatting, the content of the abatement request, and what to expect during the review period. Whether you are an individual taxpayer or the representative of a business entity, this resource is intended to help you understand the requirements and procedures for seeking relief from assessed tax penalties.

Understanding Mississippi State Tax Penalties

Mississippi tax penalties are financial charges assessed when taxpayers fail to comply with the state’s tax requirements. These penalties apply in situations such as filing a tax return late, failing to pay the tax shown on a return, or underpaying estimated tax during the year. Interest also accrues on unpaid tax amounts, increasing the total tax burden. Understanding how these charges are calculated can help you determine if you may qualify for relief through the abatement of Mississippi tax penalties.

Common Types of Mississippi Tax Penalties

Mississippi imposes several types of penalties based on the type of noncompliance. Below is a breakdown of the most frequently assessed penalties and how they are calculated.

1. Late Filing Penalty

  • Mississippi imposes a late filing penalty if you file your tax return after the filing deadline without an approved extension.

  • This penalty equals 5% of the total tax owed for each part of the month when the return is late, up to a maximum of 25%.

  • A minimum penalty of $100 applies, even if no tax is due.

2. Failure to Pay Penalty

  • If you file on time but do not pay the balance due, the state charges a penalty for failure to pay.

  • This is ½% % (0.5%) of the unpaid tax for each month or part of a month in which the payment is late.

  • The maximum penalty is 25% of the unpaid balance.

3. Interest on Unpaid Tax

  • In addition to penalties, interest accrues on any unpaid tax starting at the original due date.

  • The effective interest rate is 0.5% per month, or 6% annually, applied to the outstanding balance.

  • Unlike penalties, interest is rarely abated, even with reasonable cause.

Other Penalties You May Encounter

Mississippi tax law imposes additional penalties based on the type of tax and the nature of the violation. These may be assessed separately or in combination with late filing and failure to pay fines.

  • Failure to Pay Estimated Tax
    This penalty applies when your estimated tax payments for the current year are too low or missing. It is calculated based on the amount of tax underpaid for one quarter or more.

  • Bad Check or Failed Electronic Payment
    Additional fees will be assessed if your payment is returned due to insufficient funds in your bank account or an error in electronic payment. These fees increase the total tax you owe.

  • Failure to File Information Returns
    This penalty varies depending on the type of return not filed. It typically applies to businesses or taxpayers who do not submit required tax documents by the due date.

  • Sales Tax Filing or Payment Penalty
    If you file a sales tax return late or fail to pay taxes owed, a penalty of 10% of the tax due or $50 (whichever is greater) will be applied.

Key Points to Remember

  • Penalties and interest are separate and may be assessed at the same time.

  • Penalties increase each month or part of it and remain unpaid.

  • Taxpayers may qualify for relief from penalties if they meet reasonable cause criteria, but interest typically continues to accrue until the balance is paid.

  • Always carefully review the letter or notice from the Mississippi Department of Revenue to understand which penalties apply.

How to Apply for Mississippi Penalty Abatement

Mississippi does not provide a standardized application, unlike the IRS, which uses Form 843 for penalty relief. Instead, taxpayers must submit a written request explaining why penalties should be removed. Following the correct steps improves your chances of success.

Step-by-Step Instructions

  1. Identify All Penalties Assessed
    Review any tax notices to confirm which penalties, interest, or fees apply, the affected periods, and the specific reasons stated.

  2. Determine Your Grounds for Relief
    Compare your situation against Mississippi's list of reasonable causes. Focus on facts that align with documented events, such as medical emergencies, disasters, or the receipt of inaccurate advice.

  3. Prepare a Written Request
    When you're ready to request penalty abatement, you must write a formal letter to the Mississippi Department of Revenue. Your letter should include your full name, mailing address, and taxpayer identification number. Indicate the relevant tax periods, the outstanding balance, and the penalties you seek abatement for. Be sure to detail your reasonable cause, linking your explanation to relevant dates and circumstances. Reference any supporting documents you enclose that validate your claim, such as medical records, disaster relief notices, or correspondence with the MDOR. Finally, sign and date the letter before submission, and make copies for your records.
  4. Gather Supporting Documentation
    Compile evidence relevant to your claim, such as medical records, FEMA assistance letters, insurance reports, or correspondence with MDOR.

  5. Submit Your Request
    You may mail, fax, email, or deliver your request to a district office. Always retain copies for your account records.

    Submission Options:


    • Mail: Mississippi Department of Revenue, P.O. Box 1033, Jackson, MS 39215-1033

    • Fax: 601-923-7006

    • Email: outreach@dor.ms.gov

    • Phone: Call 601-923-7000 for questions or online filing options

  6. Follow Up if Needed
    If you do not receive a response within 30 days, contact MDOR directly. Be prepared to provide additional information if requested.

Taxpayers may also authorize a CPA, attorney, or enrolled agent to act on their behalf using a signed power of attorney form. This can be especially helpful in more complex cases or when significant documentation is required.

Supporting Documents to Strengthen Your Request

The strength of your penalty abatement request depends heavily on the quality of documentation you provide. Mississippi evaluates each request on a case-by-case basis, so it's essential to include evidence that supports your explanation. Clear, well-organized documents help establish credibility and demonstrate that your failure to file or pay taxes was due to reasonable cause.

Documentation by Cause Type

Here are typical examples of supporting documents based on the reason for your request:

  • Medical Issues
    Hospital records, physician letters, or medical bills that show illness or incapacitation around the original or extended due date of your tax return. If a family member passed away, include a death certificate.

  • Natural Disasters
    You should include insurance claims, FEMA assistance documents, news articles, or photographs of damage that prevented you from filing your return or paying taxes on time.

  • Inability to Access Records
    Police reports about theft, bank letters verifying closed accounts, or correspondence from third parties clarifying the unavailability of crucial records during the filing period are examples.

  • Written Advice from MDOR
    Printed emails, mailed letters, or notes from phone calls with MDOR agents. Include names, dates, and advice that led to the filing or payment error.

  • Good Compliance History
    Include copies of timely filed tax returns from previous years, confirmation emails from online filing systems, and evidence of consistent estimated tax payments.

Best Practices for Document Organization

Before you submit your request, organize your materials to make it easy for the Mississippi Department of Revenue to evaluate. Create a clear timeline of events that impacted your ability to pay taxes or file your return. Use a cover sheet listing each submitted document, highlighting key information such as dates, account numbers, or penalties. Keeping everything in order shows that you're taking the process seriously and improves your chances of receiving relief.

What to Expect After You Submit Your Request

Once your penalty abatement request is submitted, the Mississippi Department of Revenue will review your letter and all supporting documents. Most taxpayers receive a response within 30 to 60 days, depending on the case's complexity. During this time, the Mississippi Department of Revenue may contact you for additional information, particularly if clarification is required to evaluate your reasonable cause claim.

Follow-Up and Response Timeline

If you do not hear back within 30 days, following up by calling the department at 601-923-7000 is appropriate. Be sure to have your tax account information and submission details ready. Document the date of your follow-up call and the name of the representative you spoke with. If your request is still under review, monitor your mail and email for updates.

Appeals Process if Denied

If your request is denied, you can appeal the decision. You must file your appeal with the Board of Review within 60 days of receiving the denial letter. If the Board denies your claim, you can appeal to the Board of Tax Appeals or a court. Respond before the appeal deadline, as the Board may dismiss late appeals.

Common Mistakes to Avoid

Submitting an incomplete or poorly documented request can lead to unnecessary delays or outright denial of relief. To improve your chances of success, avoid these common mistakes:

  • Providing vague or emotional statements: Always give specific reasons and factual explanations rather than general complaints or frustrations about the penalty.

  • Failing to include relevant documentation: Clear records must back claims of medical hardship, natural disaster, or other reasonable causes.

  • Waiting too long to act: Although Mississippi does not impose a strict deadline, the longer you wait after receiving a tax penalty notice, the harder it may be to prove your claim.

  • Blaming a third party without context: The state holds you responsible even if your employee or tax preparer failed to act. Include supporting evidence showing your attempts to resolve the issue.

  • Not addressing all penalties: Review your tax bill or notice carefully. In your request, you must address each assessed penalty, including late filing and failure to pay.

Avoiding these pitfalls can make a significant difference between approval and denial, saving you considerable money in penalties and interest.

Summary Checklist for Penalty Abatement Success

Before submitting your Mississippi tax penalty abatement request, you must ensure that every part of your application is complete, accurate, and well-documented. This checklist will help guide you through the preparation and submission process from start to finish.

Before Preparing Your Request

  • Review your penalty notice or tax bill to confirm which penalties have been assessed, including the applicable tax periods, the total tax owed, and any accrued interest or fees.

  • Determine whether your situation meets the state’s definition of reasonable cause by comparing your circumstances with common qualifying examples, such as medical hardship or a natural disaster.

  • Collect all necessary supporting documentation that proves your claim, such as medical records, insurance reports, or prior tax payment receipts.

  • If your business is new (operating between six and 24 months), determine whether you are eligible for Mississippi’s Assistance Request Program. This program may allow for the complete abatement of penalties and interest following an educational audit.

While Preparing Your Request

  • Clearly state your name, mailing address, and taxpayer identification number at the top of your letter to ensure your request correctly matches your account.

  • Identify each penalty you request to be waived, including the tax year and the unpaid tax amount.

  • Provide a detailed explanation of the reasonable cause for your noncompliance and connect it to relevant dates or events that impacted your ability to file or pay on time.

  • Refer to each document you’re including and explain how it supports your request so that MDOR staff can easily evaluate your claim.

  • Sign and date the letter before submission to certify its accuracy.

After Submission

  • Keep copies of everything you submitted, including your written request and all supporting documents, for your records.

  • Follow up with the Mississippi Department of Revenue if you have not received a response within 30 days.

  • Respond promptly if the department asks for additional information to support your claim or clarify any part of your request.

  • If your request is denied, make note of the appeal deadline—typically 60 days from the date of the denial letter—and prepare to submit your appeal on time.

Frequently Asked Questions (FAQs)

Can I get an abatement of tax penalties in Mississippi for late filing and payment?

If you have a valid reason for not filing or paying your tax return on time, you may request relief from the late filing and failure to pay penalty. The Mississippi Department of Revenue evaluates each request based on reasonable cause, such as illness or natural disaster. To qualify, you must clearly explain what prevented compliance and provide supporting documents with your request letter.

Does interest on unpaid tax qualify for abatement in Mississippi?

No, while the state may remove penalties under certain conditions, interest on unpaid tax is usually not eligible for abatement. Interest is calculated based on the original due date and serves as compensation to the state for the time value of money. The effective interest rate in Mississippi is typically 0.5% per month. However, the interest balance may also be adjusted if the underlying tax is reduced.

What happens if I submit my tax return late but pay the total tax owed?

Even if you pay the total tax shown on your return, a late filing penalty may still apply if you miss the filing deadline. Mississippi imposes a minimum penalty for returns filed after the original or extended due date. Penalties are assessed for each part of the month when the return is late. To avoid fees, file and pay taxes as early as possible or request an extension.

Can I set up a payment plan if I can’t pay my tax bill in full?

Yes, Mississippi may allow an installment agreement if you owe more than you can pay at once. This lets you make monthly payments toward your balance. While interest and some penalties continue to accrue, it prevents further collection actions. To request a plan, contact the Department of Revenue and provide your account number, current year income, and payment terms you can manage based on your bank account status.

What if I didn’t make estimated tax payments during the year?

Especially if they receive income not subject to withholding, taxpayers who fail to make adequate estimated tax payments may face penalties. Mississippi calculates this penalty based on one quarter or more of underpaid tax. To avoid future penalties, make estimated payments if you expect to owe more than $200 in total tax. Use Form 80-320 to calculate your estimated tax, and pay quarterly by the due date.

Will having a child tax credit reduce my Mississippi tax penalty?

The child tax credit is a federal benefit and does not directly reduce your Mississippi tax penalty or balance. However, if your gross income is lower due to federal credits, it may impact your overall tax situation. Always review your state and IRS tax liabilities separately. If you’ve overestimated your income or tax owed, you may qualify for a refund or a minor penalty after recalculating the return.

Can someone submit a penalty abatement request on my behalf?

A certified public accountant (CPA), attorney, or enrolled agent may submit a Mississippi tax penalty abatement request on your behalf. You must complete a power of attorney form authorizing them to act for your account. The representative should be prepared to communicate with MDOR, respond to any requests for additional information, and help you prepare the letter and supporting documentation needed to justify your request.