Merchant Account Documents Checklist: What You’ll Need to Apply

Applying for a merchant account goes faster when your paperwork is ready on day one. Underwriters need to verify who owns the business, that the business is real, and where deposits should go. Missing one item—a voided check, an EIN letter, a second owner’s ID—is a common reason applications sit idle.

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This checklist is written for small businesses: trades, restaurants and cafés, food trucks, salons, and local service shops. Exact requirements can vary by processor and risk profile, so treat this as a practical prep list, not a legal guarantee.

TapSimple merchants typically start at sign-up or app.tapsimple.com. Having these documents nearby before you begin saves back-and-forth later.

Quick checklist (print or screenshot)

Identity & ownership (KYC)

Government-issued photo ID for each required owner / signer (driver’s license or passport)
Social Security number (or ITIN, if applicable) for owners as requested
Ownership percentages that add up correctly
Home address and contact info for owners as requested

Business verification (KYB)

Legal business name (exactly as registered)
DBA / “doing business as” name if you use one
Business formation documents (articles of organization/incorporation, or equivalent)
EIN confirmation (SS-4 letter or IRS EIN notice) when applicable
Business address and phone
Short description of what you sell and how you take payments

Banking & deposits

Business bank account (routing + account number)
Voided check or bank letter on letterhead confirming the account
Matching legal/DBA names where the bank expects them

If you’re already processing cards

Last 1–3 months of processing statements (PDF preferred)
Approximate monthly volume and average ticket
Notes on chargebacks or reserves (if any)—be ready to discuss honestly

Nice-to-have (asked more often in some verticals)

Business license or trade license
Lease or utility bill (proof of business address)
Website URL and refund / cancellation policy (if you sell online or take deposits)
Photos of storefront, truck wrap, or job-site branding (occasionally requested)

Identity & ownership documents (KYC)

Know Your Customer (KYC) checks confirm the people behind the account. Card networks and processors are required to understand who beneficially owns and controls the business.

Typically requested:

Photo ID for each owner above the processor’s ownership threshold (often 25%, but follow the form)
Personal details used for identity verification and, in many cases, credit/background review
Accurate ownership split (e.g., 60% / 40%)—don’t round in ways that leave a gap

Tips for trades & services: If your LLC has a silent partner or spouse on paperwork, list them as the application requires. Underwriters flag mismatches between formation docs and the application faster than you’d expect.

Business formation & tax ID (KYB)

Know Your Business (KYB) confirms the company itself.

Sole proprietors: You may apply under your personal name with a DBA. Requirements still include identity docs and a deposit account—often a business checking account even for sole props.

LLCs and corporations: Have articles (or certificate) of formation and your EIN letter ready. Use the exact legal name spelling from the state filing.

Partnerships: Be ready to show partnership agreements or formation docs plus owner IDs for partners as required.

A one-sentence business description helps: “Mobile food truck serving tacos in Jacksonville” beats “Food business.” Clear descriptions reduce follow-up questions about industry and risk.

Banking documents

Funds from card sales settle to a bank account. Processors need proof the account belongs to the business (or an allowed owner account, depending on rules).

Best options:

Voided check from the business account (write “VOID” across a blank check; don’t sign it as a payment)
Bank letter or account verification letter on bank letterhead with routing/account numbers and business name

Screenshots of online banking sometimes work; a voided check or official letter usually creates fewer delays.

Name matching: If your terminal should say “Joe’s HVAC” but the bank account is only under a personal name, ask your processor what they allow—and fix naming with the bank if needed before go-live.

Processing history & statements (if switching)

If you already accept cards, recent statements are gold:

They show real volume (better than guesses)
They help you see all-in fees before you change providers
They give underwriting context on chargebacks and prior MID activity

TapSimple’s live signup conversation may include statement analysis messaging—aligned with reviewing what you pay today. Pull PDFs from your current processor’s portal before you start.

New to cards? Skip statements; lean on honest volume estimates and a clear business description instead.

Industry-specific extras

Business type	Extra items sometimes requested
Food truck / mobile F&B	Health permit, commissary info, truck photos
Restaurant / bar	Liquor license if relevant, menu or site URL
Contractor / trades	License number, proof of insurance (varies)
Salon / services	Suite lease or booth agreement if not a storefront
Taking large deposits	Written refund / cancellation policy

You won’t always need these. Having them in a folder means you can reply to an underwriting request the same day.

Prep tips before you hit “apply”

Make a single folder (phone or Drive) named “Merchant application — [Business]”.
Scan clearly—blurry IDs cause resubmits.
Align names across ID, formation docs, bank, and application.
Estimate volume from reality—last 90 days of sales or a grounded launch forecast.
List every required owner before submit; adding someone mid-stream restarts checks.
Watch email and SMS after you apply so doc requests don’t age out.

For the bigger picture of the journey, read How to Get a Merchant Account. For why all this paperwork exists, see Merchant Underwriting Explained.

Soft next step

When your checklist is ready, start your merchant account signup with TapSimple.

FAQ

Can I apply without an EIN? Sometimes, depending on structure and processor rules. Many LLCs/corps will need an EIN on file. Check the application fields and don’t invent a number.

Do you need a voided check if I can enter routing/account numbers? Entering numbers is common; a voided check or bank letter is still frequently requested to verify the account. Have one ready.

What if one owner lives out of state? That’s fine in many cases—you’ll still need their ID and details as required. Plan for them to be available for verification.

Are tax returns required? Not always for standard small-business applications. Higher volume or higher-scrutiny cases may request financials. Provide what’s asked; don’t volunteer unfinished returns unless requested.

Will TapSimple store my documents securely? Applications are handled through TapSimple’s live application process and processing partners. Use official signup/app links only—never email full SSN/bank details to informal addresses unless support explicitly instructs a secure method.