Application for Security Summit Membership

Agency: IRS
Revision: Rev. 5-2024
Fillable fields: 24
Pages: 1
Official source: IRS form page
Checked: October 21, 2026

Form 15320: Application for Security Summit Membership

Form 15320, Application for Security Summit Membership, is completed by an agency or organization, not by an individual taxpayer. The applicant gives its name, address and a contact person, selects a membership category, and submits a short Statement of Interest.

The form says the Statement of Interest is one to two pages and describes the agency's or organization's role, mission and functional responsibilities within the tax ecosystem, along with its expectation of the Security Summit, including its anticipated contribution and benefits expected. The application is signed by the Head of Agency/Senior Executive of the agency or organization.

The form says it can be faxed to 855-811-8020 or mailed to the IRS National Public Liaison. You can fill out Form 15320 free in your browser on this page and download the result without an account.

Top of page 1 of Form 15320: Application for Security Summit Membership, as printed by IRS

What's on Form 15320

Where to send

The fax number and the mailing address of IRS National Public Liaison, printed at the top of the form.

Part I: Applicant Information

The agency or organization's name, address and business telephone number, then the contact's name, address, email, telephone number and job title.

Part II: Required Criteria and Qualifications

Directions for the Statement of Interest and six boxes for the membership category.

Part III: Applicant Signature

A certification that the statements are true and that the applicant meets the membership criteria, with name, title, signature and date.

Paperwork Reduction Act Notice

The authority for the form and its purpose. It says providing the information is voluntary and the estimated average time is 5 minutes.

How to fill out Form 15320

1
Organization details
In Part I, enter the agency or organization name, address, city, state, ZIP code and business telephone number.
2
Contact person
Enter the contact's name, address, city, state, ZIP code, email address, telephone number and job title.
3
Membership category
In Part II, select the category you are applying for. The form says to use the membership criteria document to find the category that best aligns with the agency or organization.
4
Statement of Interest
Prepare a one to two page statement of the organization's role, mission and functional responsibilities within the tax ecosystem, and its expectations, anticipated contribution and benefits expected.
5
Sign
The Head of Agency/Senior Executive prints their name and title, signs and dates Part III.
6
Fax or mail
Fax the application to 855-811-8020 or mail it to the address printed at the top of the form.

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Where to send it and what you agree to

Fax

The form says the application may be faxed to 855-811-8020.

Mail

Internal Revenue Service National Public Liaison, Room 7559 CL:NPL, 1111 Constitution Ave, NW, Washington, DC 20224.

Statement of Interest

Part II asks for a short statement of one to two pages along with the application.

Changes in representatives

By signing, the applicant agrees to immediately notify the designated IRS Official when adding or removing representatives taking part in Security Summit activities.

Voluntary

The Paperwork Reduction Act Notice says providing the information is voluntary, and not providing all or part of it may affect the application process.

Who fills out Form 15320?

States and cities
The form lists State/City as one of the membership categories an applicant can select.
Software developers and EROs
Software developer/Electronic Return Originator (ERO) is another category on the form.
Financial services and payroll
The form also lists Financial services and Payroll reporting agents as membership categories.
Endorsing and other organizations
Endorsing organization and Other complete the list of categories.
Head of Agency or Senior Executive
The form says the application is signed by the Head of Agency/Senior Executive of the agency or organization.

An agency or organization applying for Security Summit membership completes the form, and its Head of Agency/Senior Executive signs it. It goes to IRS National Public Liaison.

Official sources and the blank

Official IRS form page
The agency’s own page for Form 15320.
Blank PDF
The official blank form, to print or fill by hand.

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Questions about Form 15320

Who can apply with Form 15320?

An agency or organization. The form lists State/City, Financial services, Endorsing organization, Software developer/Electronic Return Originator (ERO), Payroll reporting agents and Other as categories.

Who signs the application?

The form says it is signed by the Head of Agency/Senior Executive of the agency or organization.

Where do I send Form 15320?

Fax it to 855-811-8020, or mail it to Internal Revenue Service National Public Liaison, Room 7559 CL:NPL, 1111 Constitution Ave, NW, Washington, DC 20224.

What goes in the Statement of Interest?

One to two pages on the organization's role, mission and functional responsibilities within the tax ecosystem, plus its expectations, anticipated contribution and benefits expected.

How long does the form take?

The Paperwork Reduction Act Notice gives an estimated average time of 5 minutes.

Where is the membership criteria document?

Part II refers to an attached membership criteria document. The downloaded PDF has only the one-page application.

Form 15320: Application for Security Summit Membership