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The Maryland Form 502UP is a document specifically designed for individuals to report underpayment of estimated income tax within the state of Maryland. It helps taxpayers calculate any underpayment and the associated interest they may owe. This form ensures compliance with state tax regulations by documenting the taxpayer's situation and guiding the completion of payment responsibilities.
To access the Maryland Form 502UP, taxpayers can visit the official website of the Comptroller of Maryland. The form is available for download in PDF format, allowing users to print, fill out, and submit their information as required. Additionally, tax software programs and professional tax preparers may offer access to this form as part of their services, streamlining the filing process for users.
Gather Necessary Information: Before beginning, collect personal and financial information, such as your Social Security number and estimated tax payments.
Fill Out Personal Information: Enter your personal details, including full name, address, and Social Security number, at the top of the form.
Calculate Underpayment: Use the instructions provided on the form to compute any underpayment of estimated tax. This involves identifying the total tax liability, estimated payments made, and any balances due.
Determine Interest on Underpayment: Follow the instructions to calculate the interest on the underpayment, covering the period where payment was late.
Complete Sections for Special Situations: For instance, if you're a farmer, fisherman, or have tax obligations in another state, ensure to fill out the corresponding sections.
Submit the Form: After completion, the form must be submitted through the state’s specified methods, either online, via mail, or in person at designated locations.
The Maryland 502UP Form is predominantly used by individuals who have underpaid their estimated income taxes. This includes:


Maryland imposes specific rules for its Form 502UP, distinguishing it from federal requirements or those of other states. Here are critical aspects:
A consultant earning variable income throughout the year discovers they have underpaid estimated taxes. They use the Maryland 502UP to calculate the underpayment and applicable interest, ensuring they meet their tax obligations to avoid further penalties.
A retired couple receiving significant dividend income finds that their tax prepayments were insufficient. By completing the 502UP form, they can address the discrepancies and prevent additional charges.
Freelancers with sporadic income from multiple sources may underpay their estimated taxes. By utilizing this form, they accurately document and rectify their tax underpayment.
Failing to submit the Maryland Form 502UP or withholding its information can lead to severe consequences. The state imposes penalties, including:
Ensuring timely and accurate completion of the Maryland 502UP Form helps mitigate these risks and facilitates adherence to tax obligations.
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| Versions | Form popularity | Fillable & printable |
|---|---|---|
| 2025 | 4.7 Satisfied (21 Votes) | |
| 2024 | 4.7 Satisfied (50 Votes) | |
| 2023 | 4.6 Satisfied (44 Votes) | |
| 2022 | 4.3 Satisfied (60 Votes) | |
| 2021 | 4.8 Satisfied (232 Votes) | |
| 2020 | 4.3 Satisfied (147 Votes) | |
| 2019 | 4.3 Satisfied (91 Votes) | |
| 2018 | 4.3 Satisfied (148 Votes) | |
| 2017 | 4.4 Satisfied (187 Votes) | |
| 2016 | 4.1 Satisfied (75 Votes) | |
| 2013 | 4.3 Satisfied (133 Votes) | |
| 2010 | 4.4 Satisfied (133 Votes) |
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UNDERPAYMENT OF ESTIMATED INCOME TAX BY INDIVIDUALS 2023 MARYLAND FORM 502UP ATTACH. You may also call 1-800-638-2937
Jan 21, 2026 Form 502 for full- or part-year residents. Form 502, Marylands Internet tax filing allows online electronic filing of resident personal income