Yes! You can use AI to fill out Maryland Form 548, Power of Attorney

This error occurs when the taxpayer's name entered in Part I does not exactly match the name associated with the SSN or FEIN on file with the tax authority. This often happens with business names (e.g., using a DBA instead of the legal entity name) or individual name variations. A mismatch will cause the form to be rejected, delaying the appointment of the representative. To avoid this, carefully enter the full legal name as it appears on official tax documents. AI-powered tools like Instafill.ai can help by storing and auto-filling the correct, validated information consistently across all forms.

In Part III, filers often provide vague information, such as writing 'All Years' or 'Income Tax' without specifying form numbers and periods. The form requires specific details for 'Type of Tax,' 'Tax Form Number,' and 'Years or Periods' for the Power of Attorney to be valid for those matters. Ambiguity can lead to the representative lacking authority for the intended issue. Always list each tax type, form number (e.g., 502), and the specific years (e.g., 2021-2023) or periods involved.

A frequent and critical error is the failure to obtain all required signatures. The form is invalid if the taxpayer (and spouse, if applicable) does not sign and date it, or if the representative does not complete and sign the 'Declaration of Representative' on page 2. People often assume only the taxpayer needs to sign, forgetting the representative must also attest to their qualifications and identity verification. This oversight leads to immediate rejection of the form. Always double-check that all signature and date fields are completed by the correct parties before submission.

Filers often misunderstand the 'Retention/Revocation of Prior Power(s) of Attorney' section. By default, filing this form revokes all previous POAs for the same tax matters. If a taxpayer wants to keep a prior POA active, they must check the box and, crucially, attach a copy of the POA they wish to keep. Forgetting to check the box will unintentionally revoke prior authorizations, while checking the box but failing to attach the copy will cause processing issues and potential rejection.

The representative's section on page 2 is often filled out incorrectly or left incomplete. The representative must enter their designation number (1-10), jurisdiction (if applicable), signature, identification number, and date. Forgetting any of these elements, especially the signature and date, invalidates the entire form. This section is the representative's legal declaration, and its incompletion is a common reason for the Comptroller of Maryland to reject the POA.

When the Power of Attorney concerns a joint tax return or matter, both spouses must sign the form if joint representation is desired. It is a common mistake for only one spouse to sign, believing their signature is sufficient for the household. However, the instructions explicitly require both signatures to grant authority for a joint matter, and failure to comply will result in the POA being considered invalid for the non-signing spouse.

Taxpayers frequently make errors in Part I by entering an SSN in the FEIN field or vice-versa, or by filling out both fields. The form clearly requires an SSN for an individual and an FEIN for a business, but not both. This mistake can cause the form to be misrouted or rejected because the identification number does not match the entity type. To prevent this, carefully read the field instructions and provide only the one, correct identification number for the taxpayer.

The standard authorization does not include certain acts, such as the power to receive or cash refund checks. Taxpayers often assume the POA grants their representative unlimited authority and fail to list these specific additions in the 'Acts Authorized' section. If you want your representative to perform acts beyond the default, you must explicitly write them in this section. Leaving it blank when special authority is needed can prevent the representative from completing their work as intended.

The form specifies formats for various numbers, such as the taxpayer's ZIP+4, the representative's PTIN (P followed by 8 digits), and the taxpayer's FEIN (no hyphens). Users often enter these numbers in non-standard formats out of habit, which can cause data entry errors in the processing system. This can lead to delays or rejection. Using a tool like Instafill.ai can help prevent these mistakes by automatically formatting data to meet the specific requirements of each field.

Filers sometimes split address information incorrectly, putting the suite or apartment number on the main street address line, or vice-versa. The form provides separate fields for 'Home address (number and street)' and 'Apt./Ste. number' to ensure mailability. An incorrect or incomplete address for either the taxpayer or the representative can lead to failed correspondence and critical notices being missed. It is essential to use the correct field for each part of the address. If the form is a non-fillable PDF, a tool like Instafill.ai can convert it to a fillable version with clearly defined fields to guide correct data entry.