Can I notarize a document online for tax-related purposes?

Yes, many states allow remote online notarization (RON), where a notary verifies your identity and notarizes your document via video call. This can be useful for affidavits or powers of attorney related to taxes if you're unable to meet a notary in person.

What does it cost to get a document notarized for tax purposes?

The cost of notarization varies by state but typically ranges from $5 to $25 per signature. Mobile or online notary services may charge more for convenience, especially for urgent tax-related documents.

How do I know if a tax document requires notarization by law?

Check the instructions that accompany the form or consult the requesting institution. While IRS forms rarely require notarization, state agencies, courts, or financial institutions may have different requirements.

Can a tax professional also be a notary public?

Yes, a CPA or tax preparer can also be a commissioned notary public. However, they must avoid conflicts of interest and follow state laws that prohibit giving legal advice under the guise of notarial services.

Do notarized tax documents expire or need to be renewed ?

Notarized documents themselves don’t “expire,” but their relevance may be time-sensitive. For example, an income affidavit may only be accepted if dated within the last 30–90 days, depending on the agency or lender’s policies.

Do You Need a Notary Public to File Tax Forms?

Last updated June 19, 2025

Filing taxes can feel like navigating a maze of forms, deadlines, and unfamiliar requirements. If you’ve ever come across a legal document that required a notary’s seal, you may have wondered: Do my tax forms need to be notarized too?

It’s a fair question—especially since some financial documents look so official that notarization seems like a logical next step. But here’s the truth: most tax forms filed with the IRS don’t require notarization. Still, there are certain tax-adjacent documents—like power of attorney forms or income affidavits—that do call for a notary’s signature.

In this post, we’ll clarify exactly when you need a notary for tax-related documents, which forms you can confidently handle on your own using a service like FormPros, and when it might make sense to consult or become a certified notary public through a course like NotaryLearn.

Let’s clear the confusion and help you file with confidence.

What is a Notary Public and What Do They Do?

A Notary Public is a state-commissioned official whose job is to act as an impartial witness during the signing of important legal documents. Their primary role is to help prevent fraud by verifying the identities of the signers and ensuring that all parties are entering into agreements willingly and with full understanding.

Notaries do this by checking government-issued IDs, confirming signatures, and sometimes administering oaths. Once everything is verified, they affix their official seal or stamp to the document—this is what makes it “notarized.”

While notaries aren’t lawyers or tax professionals, they play a vital role in validating documents used in legal, financial, and even real estate transactions. Their services are often required for:

Powers of attorney
Real estate deeds
Affidavits of identity or income
Business formation agreements
Certain loan and legal disclosures

As you’ll see later in this article, some of these documents can overlap with tax-related tasks—especially for individuals handling estate planning, starting a business, or delegating tax authority to someone else.

Do Federal Tax Forms Require a Notary?

If you’re filing standard IRS forms like the 1040, W-2, W-4, or 1099’s, you can breathe easy—the IRS does not require these forms to be notarized.

These federal tax forms rely on a principle known as “self-attestation”. When you sign your tax return (whether digitally or on paper), you’re legally certifying that the information is true and complete to the best of your knowledge. That signature—along with your taxpayer identification—is considered sufficient authentication for the IRS.

Here’s a quick breakdown of some of the most common tax forms and their notarization status:

Form	Purpose	Notary Required?
1040	Individual income tax return	❌ No
W-2	Wage and tax statement (from employer)	❌ No
W-4	Employee’s withholding certificate	❌ No
1099-NEC	Nonemployee compensation (freelancers)	❌ No
941	Employer’s quarterly tax return	❌ No

This is where digital tools like FormPros come in. With FormPros, you can generate official tax forms online that meet IRS standards—no notary, no hassle. That said, there are certain tax-adjacent forms and situations where notarization could still come into play, and we’ll cover those next.

While the IRS doesn’t require notarization for standard tax forms, some tax-related documents do require a notary—especially in more complex financial or legal scenarios. These aren’t your everyday tax returns, but rather supporting forms and legal declarations that often accompany special tax filings, estate plans, or business activities.

Here are some common examples:

1) Power of Attorney for Tax Matters (IRS Form 2848) –

If you want someone—like a CPA, attorney, or family member—to represent you before the IRS, you’ll need to complete Form 2848. While the IRS itself does not mandate notarization of this form, some institutions or state-level filings may require it as a safeguard.

*Pro Tip: If you’re helping someone fill this out, it’s best to check if the financial institution or state requires notarization to accept the authorization.*

2) Affidavits of Income or Residency –

Certain government benefits, tax relief programs, or housing authorities may ask for a notarized affidavit verifying your income, identity, or residency. These forms are often required when official documents (like paystubs or leases) are unavailable or insufficient.

3) State Business Formation and Tax Documents –

If you’re starting an LLC or corporation, some state-level tax or registration documents may require notarization, especially if you’re designating a registered agent, filing an operating agreement, or submitting financial affidavits.

4) Identity Verification Documents –

In rare cases, if the IRS has flagged suspicious activity or requires verification, they may accept a notarized copy of your government-issued ID or signature to verify identity. This is more common in cases of identity theft or filing errors.

These situations underscore a key point: while your main tax forms probably don’t require a notary, the supporting documents around them just might. That’s why knowing when to call one—and how to become a notary—is increasingly valuable.

📚 Thinking about becoming a certified Notary Public? Check out NotaryLearn to start your training and open new career opportunities. And if you’re already a commissioned notary, don’t forget to stay current with your state’s requirements during your next notary renewal—especially if you plan to offer services that support tax or business documentation. 📚

Can a Notary Help You Prepare or File Tax Forms?

While notaries play an important legal role, it’s crucial to understand their limitations—especially when it comes to taxes. A Notary Public is not a tax preparer or financial advisor, and in most states, notaries are prohibited from offering tax advice or completing tax forms for others unless they are separately licensed or certified to do so.

✅ What a Notary Can Do:

Notarize related documents, such as affidavits, powers of attorney, or business declarations used in tax filings.
Verify identities for people signing important financial documents.
Serve as a neutral witness to signatures on legal forms connected to taxes or estate planning.

❌ What a Notary Cannot Do (Without Additional Credentials):

Give tax advice or interpret tax laws.
Prepare or file IRS forms on someone’s behalf (unless also a licensed tax preparer or CPA).
Represent someone before the IRS (unless designated via Form 2848 and legally qualified).

When to Use a Notary—And When to Use Online Tools

Not every tax situation is cut-and-dried. While most people won’t need a notary to file their federal tax forms, there are certain legal and financial scenarios where notarization is essential. Knowing the difference can save you time, money, and potential headaches with the IRS or your state’s tax authorities.

Use a Notary When:

— You’re completing a Power of Attorney form or signing on someone else’s behalf.

— You need to submit a sworn affidavit for income, residency, or identity verification.

— You’re forming a business and need to file state-level tax or legal documents.

— A lender, agency, or institution specifically requires notarization for a tax-related process.

Use Online Tools Like FormPros When:

— You’re filing standard IRS forms like a 1044, 1099-NEC, W-2, or W-4.

— You want to generate tax or employment forms instantly and accurately.

— You need to create professional documents like pay stubs, W-9s, or business filings with confidence.

In many cases, these tools work together. For example, FormPros can help you complete the documents, while a Notary Public ensures their legal validity when required. And if you’re thinking of becoming a notary yourself—or expanding your professional offerings—NotaryLearn provides all the training you need to get certified.

Become a Notary Public Now

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