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Form LGL-001, Power of Attorney, page 1
Moderate · 46/100Form Complexity Index

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What this form asks for

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Connecticut Form LGL-001, Power of Attorney, is a legal document used by taxpayers to authorize one or more individuals to represent them before the Department of Revenue Services (DRS). This authorization allows the designated representative to receive confidential tax information and act on the taxpayer's behalf for specified tax types and periods. Completing this form accurately is crucial for ensuring your representative has the proper legal standing to handle your tax affairs. Today, this form can be filled out quickly and accurately using AI-powered services like Instafill.ai, which can also convert non-fillable PDF versions into interactive fillable forms.
Fillable fields43
Pages1
Sections9
Form Complexity IndexModerate, 46/100

The AI checks your answers before you download

14 checks built for this form, so a wrong date or a missing answer is caught before anyone else sees it.

Validates Taxpayer and Spouse Social Security Number Format

This check ensures that the Social Security Number (SSN) for both the taxpayer and spouse, if provided, is a valid nine-digit number. It should reject entries with non-numeric characters, incorrect length, or invalid patterns like all zeros. This is crucial for correctly identifying the taxpayer and linking the Power of Attorney to the correct tax account, and failure to provide a valid SSN will prevent the form from being processed for individual taxpayers.

Ensures Correct Identifier for Taxpayer Entity Type

This validation verifies that the correct identification number is provided based on the taxpayer's entity type. If the taxpayer is an 'Individual,' the Social Security Number field must be completed, while the Federal Employer Identification Number (FEIN) should be blank. Conversely, if a business entity (like Corporation, Partnership, LLC) is selected, the FEIN must be provided. This logic prevents misidentification of the taxpayer and ensures the POA is applied to the correct business or individual account.

Validates Conditional Requirement for Spouse Information

This check confirms that the 'Spouse’s Full Name' and 'Spouse’s Social Security Number' fields are only completed when the Power of Attorney pertains to a joint 'Personal Income Tax' or 'Individual Use Tax' matter. If these tax types are not listed in Part III, the spouse's information should be blank. This prevents the unnecessary collection of sensitive personal information and ensures the form complies with its own instructions, avoiding processing errors or rejections.

Requires Specification for 'Other' Entity Type

This validation ensures that if the 'Other (specify)' checkbox is selected in Part I, the corresponding text field for the entity type is not empty. Conversely, if the 'Other' checkbox is not selected, the text field must be empty. This rule guarantees that the specific entity type is captured when a standard option is not applicable, which is essential for correct legal and tax processing.

Confirms Only One Representative is Designated to Receive Notices

This check verifies that a maximum of one 'Representative to receive copies of DRS notices' checkbox is selected across all listed representatives in Part III. The form instructions state to 'Check one box only' for this designation. This is important to create a single, unambiguous point of contact for official communications, preventing confusion and ensuring notices are sent to the correct party.

Ensures All Required Fields for Each Representative are Complete

This validation confirms that for every representative listed in Part III, their full name, firm name and address, and telephone number are all provided. Leaving any of these fields blank for a listed representative makes the entry incomplete and unusable. This check is critical for the DRS to be able to identify and contact the authorized representative, and failure will result in an incomplete and invalid POA.

And 8 more checks
  • Verifies At Least One Power is Granted in Part II
  • Requires At Least One Tax Matter to be Specified
  • Validates Presence and Format of Signature Dates
  • Matches Taxpayer's Declaration Name with Part I Name
  • Validates Representative's Telephone Number Format
  • Validates 'Taxpayer's Title' Field for Business Entities
  • Validates Format of 'Year(s) or Period(s)' Field
  • Verifies Completeness of Tax Matter Rows

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How to Fill Out LGL-001 Online for Free in 2026

What the AI walks you through.

  1. Navigate to Instafill.ai and upload or select Form LGL-001, Power of Attorney.
  2. In Part I, provide the taxpayer's information, including name, address, and relevant identification numbers (SSN, CT Tax Registration Number, or FEIN).
  3. In Part III, enter the full name, firm details, and contact information for each individual you are appointing as an attorney-in-fact.
  4. Specify the tax matters by entering the tax type and the years or periods this power of attorney will cover.
  5. In Part II, check the boxes corresponding to the specific powers you wish to grant to your representative(s).
  6. Carefully review all entered information, then print your name, sign, and date the declaration in Part II. If filing for a joint return, your spouse must also sign.
  7. Download the completed and signed form and submit it to the Connecticut DRS, typically by attaching it through the myconneCT portal.

Common Mistakes in Completing LGL-001

The ones the AI is built to catch.

Incorrectly Specifying Tax Matters and Periods
Filers often enter vague information like "All taxes" or "2020-Present" in Part III, instead of the specific tax types and periods required. This happens because they want to grant broad authority but the form requires precision for legal validity. An imprecise submission can be rejected by the DRS or may fail to cover the intended tax issue, requiring a new form to be filed. To avoid this, list each specific tax type (e.g., "Sales and Use Tax," "Personal Income Tax") and the exact years or period ranges (e.g., "01/01/2022-12/31/2023") as separate line items.
Missing or Incorrect Signatures for Joint or Business Filings
A power of attorney is frequently invalidated due to signature errors, such as only one spouse signing for a joint tax matter, or an unauthorized employee signing for a corporation. This occurs due to a misunderstanding of who has the legal authority to bind the taxpayer. An invalid signature renders the entire document void, causing significant delays and preventing the representative from acting. Always ensure that for joint returns both spouses sign, and for entities, an authorized officer, partner, or member signs and includes their title.
Forgetting to Grant Specific Powers in Part II
Taxpayers sometimes complete and sign the form but neglect to check the boxes in Part II that grant specific authorities, such as the power to "Sign returns" or "Execute waivers." This mistake essentially appoints a representative with no power to perform the necessary actions, defeating the purpose of the form. To prevent this, carefully review each checkbox in Part II and select all authorities you intend to grant your representative for the specified tax matters. This ensures they can fully act on your behalf without needing further authorization.
Using the Wrong Taxpayer Identification Number
People frequently confuse which identification number to use, for instance, entering a Social Security Number (SSN) for a corporation or a Federal Employer Identification Number (FEIN) for an individual. This error happens when rushing or being unsure of the entity's filing requirements. Using the wrong identifier will cause the form to be rejected or fail to match with the taxpayer's account at the DRS. Always use the SSN for individuals and sole proprietors, and the FEIN and/or Connecticut Tax Registration Number for business entities, trusts, and estates.
Incorrectly Selecting the Entity Type
A common error is checking the wrong box for the taxpayer's entity type in Part I, such as a single-member LLC checking "Sole proprietorship" instead of "Limited liability company." This confusion arises from the similarities in how different entities are taxed or operated. An incorrect entity selection can lead to questions about the signatory's authority and cause processing delays. Carefully review the legal structure of the taxpayer and select the precise corresponding box on the form.
Using the Representative's Address as the Taxpayer's Address
Filers may mistakenly enter their representative's address in the taxpayer mailing address section in Part I, thinking it will direct all correspondence to their agent. However, the form instructions explicitly forbid this, as the DRS must maintain the taxpayer's official address of record for official mailings. This error can lead to missed notices and complications in updating official records. Always use the taxpayer's own valid mailing address in Part I and use the checkbox in Part III to designate a representative to receive copies of notices.
Selecting Multiple Representatives to Receive Notices
When appointing multiple representatives in Part III, filers sometimes check the "Receive copies" box for more than one person, contrary to the form's instruction to "Check one box only." This mistake creates ambiguity for the DRS, which may result in notices being sent to only one representative at random, or processing being delayed while clarification is sought. To ensure clear communication, decide which single representative should be the primary recipient of copied correspondence and check only the box next to their name.
Improperly Formatting Dates, Phone Numbers, and IDs
Simple data entry errors, like entering a date as '9-23-23' instead of '09/23/2023' or omitting dashes in a phone number, are extremely common. These mistakes occur from not following the specified format for each field, which can cause the form to be rejected by automated processing systems or lead to data corruption. To avoid this, pay close attention to format examples like (MM/DD/YYYY) or (NNN-NNN-NNNN). AI-powered tools like Instafill.ai can help prevent these errors by automatically formatting data correctly as you fill out the form.
Individual Filer Incorrectly Fills Out the 'Title' Field
An individual taxpayer filing for themselves sometimes fills in the "Title" field in Part II with something like "Mr." or "Taxpayer," when this field should be left blank. This field is exclusively for individuals signing on behalf of an entity, to specify their official capacity (e.g., "President," "Partner," "Trustee"). This error creates confusion about the filer's status and can slow down verification. Individual taxpayers should always leave the "Title" field empty.
Submitting an Unsigned or Incomplete Scanned PDF
When filing electronically via myconneCT, users must upload a completed LGL-001, but they sometimes upload a blank form or one that hasn't been physically or digitally signed. This happens when they misunderstand that the form must be completed and signed *before* uploading. An unsigned or incomplete form is invalid and will be rejected, halting the power of attorney process. To avoid this, ensure the PDF is fully filled out and properly signed before starting the upload process on the portal. If the form is a non-fillable PDF, a tool like Instafill.ai can convert it into a fillable version to ensure all fields are completed cleanly before printing and signing.

Frequently Asked Questions About LGL-001

 

Is it really free for 7 days?
Yes. You pay $0 today. Cancel before Nov 16 and you are never charged. Keep it, and it is $19.99 a month for 5 fills of your LGL-001.
Can I fill other forms too?
This plan is for your LGL-001: your own AI agent fills it as often as 5 times a month. To fill other forms and upload your own, choose a Professional plan from your account.
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How does the AI fill out LGL-001?
You answer a few questions in plain words, or upload a document you already have. The AI reads what you give it and puts each answer into the right field of LGL-001, on every page, in seconds. It checks the answers against the form's own rules, and you review and change anything before you download, print or sign.
What happens to my information?
It is encrypted in transit and at rest, and it is never used to train AI.
How complex is LGL-001 to fill out?
LGL-001 has a Form Complexity Index of 46 out of 100, in the moderate tier: 43 fillable fields across 1 page. Instafill.ai's AI fills it in under a minute, with every field there for you to review before you download.
What is the purpose of Form LGL-001?
Form LGL-001, Power of Attorney, is used to authorize one or more individuals to represent you before the Connecticut Department of Revenue Services (DRS). This allows your representative to receive confidential tax information and act on your behalf in tax matters.
Who needs to sign this form?
The taxpayer granting the power of attorney must sign the form. Depending on the entity type, this could be the individual, a corporate officer, a general partner, an LLC member, or a trustee.
My spouse and I file a joint tax return. Do we both need to sign Form LGL-001?
Yes, if you file a joint personal income tax or individual use tax return and you both wish to be represented by the same person, you both must sign the form. Otherwise, you must each file a separate LGL-001.
How do I submit this Power of Attorney form?
You must complete and sign Form LGL-001, then attach and submit it through the myconneCT online portal at portal.ct.gov/DRS-myconneCT.
What happens to my previous Power of Attorney if I submit a new one?
Submitting this form revokes all previous powers of attorney on file with the DRS for the same tax matters and periods covered by this new power of attorney.
Can I limit the authority I give to my representative?
Yes, in Part II, you must check the specific boxes for the powers you wish to grant. Your representative only has the authority for the actions you have explicitly checked.
Can my representative sign my tax returns for me?
Yes, but only if you specifically grant this power. You must check the box next to "Sign returns" in Part II to authorize your representative to sign returns on your behalf.
How should I list the tax types and periods in Part III?
You must be specific, listing the exact tax type (e.g., Sales and use taxes, Income tax) and the years or periods covered (e.g., 1/1/24 through 12/31/26). For estate taxes, you should enter the date of death.
I am appointing two representatives. Can they both receive copies of notices from the DRS?
No, you can only designate one representative to receive copies of notices. You must check the box next to the single representative you want to receive correspondence.
What information do I need to provide for my representative?
You will need to provide your representative's full name, the name and address of their firm, their telephone number, and their Federal Employer Identification Number (FEIN), if applicable.
Can I use an AI tool to help me fill out Form LGL-001?
Yes, services like Instafill.ai use AI to accurately auto-fill form fields from your profile, which can save you time and help prevent errors.
How can I fill out this form online using Instafill.ai?
With Instafill.ai, you can upload the LGL-001 form, fill it out using an intuitive interface, and securely save your information. Once complete, you can download the finished PDF for submission.
The PDF version of this form I have is not fillable. What can I do?
You can use a service like Instafill.ai, which can convert flat, non-fillable PDFs into interactive, fillable forms. This allows you to easily type your information directly into the fields online.
I am a sole proprietor. What name and ID number should I use in Part I?
As a sole proprietor, you should enter your individual name and your Social Security Number (SSN) in Part I. Do not enter your trade name.
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