EIN Guide · What a federal EIN is, why your Mississippi Nonprofit needs one, and how to get it.
Getting an EIN for a Mississippi Nonprofit
Every Mississippi nonprofit needs a federal Employer Identification Number — even one with no employees and no revenue yet. It's the organization's tax ID, the key to a bank account, and a prerequisite for applying for tax-exempt status. This page explains what an EIN is, when to get it, exactly how to apply for free, and the mistakes that trip up new nonprofits at this step.
One price: $199.00/yr covers your formation, your registered agent, and your annual report, plus the $50.00 state filing fee, at cost.
State agency: Mississippi Secretary of State, Business Services Division
Annual report due: April 15 · Processing: 1-2 business days
✓ No hidden fees ✓ No second-year price hikes ✓ No missed filings
State facts
Mississippi Nonprofit
What an EIN Is and Why Your Nonprofit Needs One
An Employer Identification Number is the nine-digit tax ID the IRS assigns to identify an entity at the federal level. Despite the word "employer," you don't need employees to get one — for a nonprofit, the EIN functions as the organization's federal identity for essentially everything.
What the EIN unlocks
- A bank account — banks require an EIN to open a business/organization account. You can't legitimately hold the nonprofit's money without one.
- Tax-exempt application — you must have an EIN before applying to the IRS for 501(c)(3) recognition.
- Federal filings — your annual Form 990 series return is filed under the EIN.
- Payroll and vendors — if you ever hire staff or pay contractors, the EIN is how the IRS tracks it.
Why even a tiny nonprofit needs one
Some founders assume an all-volunteer nonprofit with no income can skip the EIN. It can't. The moment you open a bank account or apply for exemption — both essential to operating legitimately — you need the number. Getting it early removes a bottleneck from every step that follows.
When to Apply — After Incorporation
Timing matters. Apply for your EIN after your Articles of Incorporation are filed and the corporation legally exists.
Why the order matters
The EIN application asks about the entity — its legal name, its formation date, its type. Applying before the corporation is formed means you'd be identifying an entity that doesn't yet exist. Once the Mississippi Secretary of State has processed your Articles (typically one to two business days for online filings), the corporation is real, and the EIN application will line up cleanly with your formation records.
Have your details ready
Before you apply, confirm:
- The corporation's exact legal name as filed with Mississippi.
- The formation date.
- The responsible party — usually a director or officer — and their Social Security number or ITIN.
- The organization's mailing address.
Consistency between your EIN and your state filing is important. A mismatch in the legal name between the two can cause confusion at the bank and with the IRS later, so use the exact name from your Articles.
How to Apply — Step by Step
The fastest and simplest way to get an EIN is the IRS's free online application. Here's the process.
The online route (recommended)
- Go to the IRS EIN Assistant at IRS.gov (search "IRS apply for EIN online").
- Select that you're applying for a non-profit organization / other tax-exempt organization as the entity type when prompted.
- Enter the corporation's legal name, formation state (Mississippi), and formation date.
- Provide the responsible party's name and SSN or ITIN.
- Enter the organization's address and answer the remaining questions.
- Submit — the EIN is issued immediately, and you can download and print the confirmation letter (CP 575) on the spot.
The online application takes about ten to fifteen minutes. It's available during IRS business hours and must be completed in a single session — the system times out if you leave it idle too long, so have your information ready before you start.
If you can't apply online
Applicants without an SSN or ITIN can't use the online tool. In that case, complete Form SS-4 and submit it by fax or mail. This is slower — fax responses take a few business days, mail longer — but it's the route for international responsible parties or others who can't complete the online form.
Common EIN Mistakes Nonprofits Make
A few predictable errors turn a ten-minute task into a headache. Avoid these.
Paying for a free service
The EIN is free from the IRS. Third-party sites that charge a standalone fee just to "obtain your EIN" are charging for something the government provides at no cost. There's nothing wrong with a formation service including EIN assistance as part of a broader package, but you should never pay a fee whose only value is getting a number the IRS hands out for free.
Choosing the wrong entity type
When the application asks for entity type, select the nonprofit/tax-exempt option, not "corporation" in the for-profit sense or "sole proprietor." The classification affects how the IRS associates the EIN with your organization.
Name mismatches
Using a slightly different name on the EIN application than on your Articles of Incorporation causes friction later — at the bank, on your exemption application, and on your 990. Match the exact legal name from your Mississippi filing.
Applying too early
Getting the EIN before the corporation is formed puts you out of sequence. Incorporate first, then apply, so the EIN attaches to a real, existing entity.
After You Have Your EIN
The EIN is a building block, not the finish line. Once you have it, several things become possible — and a couple become urgent.
Immediate next steps
- Open the organization's bank account so donations and expenses run through the nonprofit, not a personal account. Separating finances is essential to the organization's integrity and to maintaining exempt status later.
- Apply for 501(c)(3) status — the EIN is a required field on Form 1023 or 1023-EZ, so with it in hand you can move forward with the federal exemption application.
- Store the confirmation letter — keep your CP 575 (or the online confirmation) in your permanent corporate records. Replacing a lost EIN letter is a hassle, and banks and grantmakers sometimes ask for it.
Keep it consistent
Use the same EIN and exact legal name across every filing and account going forward — the bank, the IRS exemption application, the annual 990, and any grant applications. Consistency now prevents identity-matching problems down the road.
How Mainstay Filing fits
We focus on getting your Mississippi Articles of Incorporation filed correctly and serving as your registered agent. Because the EIN is free and quick to obtain yourself once the corporation exists, we'll point you to the IRS EIN Assistant and make sure your formation is complete first — so when you apply, the entity is real and your details line up.
Frequently asked questions
Does a Mississippi nonprofit need an EIN if it has no employees?
Yes. The "employer" in Employer Identification Number is misleading — a nonprofit needs an EIN even with no employees and no revenue, because you can't open a bank account or apply for 501(c)(3) status without one. Essentially every operating nonprofit needs an EIN regardless of size.
How much does an EIN cost?
Nothing. The IRS issues EINs for free through its online EIN Assistant, and the number is issued immediately. Any service charging a standalone fee just to obtain an EIN is charging for something the government provides at no cost. Be cautious of those offers.
When should we apply for our EIN?
After your Articles of Incorporation are filed and the corporation legally exists — typically one to two business days after an online Mississippi filing. Applying before formation puts you out of sequence, since the application asks about an entity that must already exist. Have your exact legal name, formation date, and responsible party details ready.
How do we apply for the EIN?
The fastest way is the IRS EIN Assistant online at IRS.gov. Select the nonprofit/tax-exempt entity type, enter the corporation's legal name, Mississippi as the formation state, the formation date, and the responsible party's SSN or ITIN. The EIN is issued immediately and you can print the confirmation. Applicants without an SSN or ITIN use Form SS-4 by fax or mail.
What if we lose our EIN confirmation letter?
Keep your CP 575 confirmation in your permanent records to avoid this. If it's lost, you can request a replacement confirmation (Letter 147C) from the IRS by phone. Banks and grantmakers sometimes ask for proof of your EIN, so storing the original safely from the start saves trouble later.
Ready to form your Mississippi Nonprofit?
Formation, your registered agent, and your annual report. One price, $199.00/yr, with the state fee passed through at cost.
Form Your Mississippi Nonprofit ($199.00/yr All-In)