A payment processor for an LLC is the third-party service under the LLC’s EIN that authorizes, captures, and settles card and ACH transactions on behalf of the LLC.
The LLC must have an EIN, a US business bank account, a beneficial owner (any US person, or a non-US person with valid US founding documentation), and either an SSN/ITIN for the owner or a foreign-owned-LLC underwriting path through Stripe Atlas for full activation.
The processor’s account is in the LLC’s name; payouts flow to the LLC’s business bank account; the LLC’s W-9 is on file with the processor for 1099-K issuance.
Run a quick stress-test: the day your LLC opens a Stripe or Square account,
the processor will request the LLC’s EIN, the LLC’s legal name (must match the operating agreement and Articles of Organization exactly),
the LLC’s principal address (no PO Box for Stripe; a CMRA address accepted by Square),
the LLC’s business bank account routing and account numbers, and a beneficial-owner attestation that lists each LLC owner with their SSN or ITIN. For a single-member LLC,
the owner signs the attestation personally; for a multi-member LLC, each member above 25% signs individually.
A payment processor for an LLC is the processor’s account registered to the LLC’s EIN, with the LLC’s beneficial-owner attestation filed and payouts flowing to the LLC’s US business bank account. Stripe, Square, and PayPal all support LLC accounts; foreign-owned LLCs typically use Stripe Atlas for the full setup path.
Key facts: Stripe, Square, and PayPal all support LLC accounts under the LLC’s EIN.
The processor’s account form requires the LLC’s legal name (must match Articles of Organization exactly), EIN, principal office address (must match the LLC’s address on file with the IRS), bank account routing + account number for payouts, and a beneficial-owner attestation.
For LLCs owned 100% by one US person with SSN, the setup is one form per processor and takes 1-3 days.
For LLCs owned by non-US persons, Stripe Atlas (US) is the standard path; Square and PayPal each require additional underwriting documents and may take 2-3 weeks.
For a single-member LLC owned by a US person, opening a Stripe account under the LLC takes about 30 minutes online: EIN, articles of organization, owner’s SSN, and the LLC’s bank account.
Approval is same-day for Stripe; same day or next business day for Square; 1-3 business days for PayPal Commerce.
For a foreign-owned single-member LLC, opening the same account takes 2-3 weeks via Stripe Atlas or direct underwriting.
What every processor requires from an LLC
All US payment processors register LLC accounts under these five elements.
| Field | What the LLC provides | Why |
|---|---|---|
| EIN | 9-digit Employer Identification Number from IRS | Processor’s merchant account is registered under the EIN, not the owner’s SSN |
| Legal name | Exact match to Articles of Organization | Used for 1099-K issuance and bank-line-item capture |
| Principal office address | Match to LLC’s principal office on Articles + EIN application | Compliance for cross-checks against IRS records |
| Bank account (US) | Routing + account number for payouts | Settlement destination; net of fees lands here |
| Beneficial-owner attestation | Each owner >= 25% with SSN/ITIN | Bank Secrecy Act / AML requirements since 2018 |
All five elements are required for activation. The processor will accept the application but won’t release payouts until all five are verified and the underwriting check passes (which usually takes 1-7 days for Stripe and Square, longer for PayPal Commerce for new accounts).
Which processor for which LLC scenario
Five common LLC scenarios each have a different best-fit processor.
Single-member LLC owned by a US person. Stripe is the default. Bank account, EIN, owner’s SSN, and Articles of Organization clear underwriting in under a day. Stripe Atlas is an overkill for this scenario since the founder is already US-resident; the regular Stripe signup is faster.
Single-member LLC owned by a non-US person. Stripe Atlas is the canonical path: $500 one-time setup, includes Delaware LLC formation, EIN, US bank account, Stripe merchant account, and Stripe Tax.
The alternative is forming the LLC separately through a registered agent, applying for the EIN directly with the IRS, opening a Mercury or Relay business bank account, and then signing up for Stripe — which takes 2-3 weeks total but costs less than Stripe Atlas if you already have an LLC.
Multi-member LLC owned by US persons. All three processors (Stripe, Square, PayPal Commerce) support multi-member LLCs. Each member above 25% ownership signs the beneficial-owner attestation individually. Stripe is the most frictionless; PayPal Commerce is the slowest (often takes 7-14 days to clear beneficial-ownership underwriting).
LLC owned by another LLC or a corporation. Beneficial-owner attestation goes up the ownership chain to the ultimate natural person(s). Stripe and Square each require full corporate structure documents (Articles of Organization, Operating Agreement, list of all members’ ownership percentages). PayPal Commerce has the strictest corporate structure verification.
LLC operating a high-risk business (CBD, firearms, adult, debt collection). Standard processors (Stripe, Square, PayPal) will decline the account at signup or terminate the account upon 90-day-review. The path is a high-risk merchant account provider (Radius Bank, eMerchant, BankCard) through a high-risk gateway (Authorize.Net or NMI). Expect reserve holdback of 5%-10% for 180 days and per-transaction rate of 3.5%-6%.
The Stripe Atlas detail for foreign-owned LLCs
Stripe Atlas is the canonical answer for a non-US founder who wants a US LLC + Stripe merchant account wired together. The setup ($500 one-time) takes the founder through:
Step 1: Atlas applies for Delaware LLC on the founder’s behalf. Atlas registers a Delaware LLC with the Delaware Division of Corporations as a foreign filing, using Atlas as the registered agent. The LLC comes back in 1-3 business days. Cost: $500 (includes registered-agent fees for the first year).
Step 2: Atlas applies for the EIN with the IRS. For non-US founders without an SSN/ITIN, the IRS requires a faxed or mailed Form SS-4 with a notarized ID and passport. Atlas handles this in 2-4 weeks. Stripe Atlas business-class EIN turnaround is faster than direct due to volume.
Step 3: Atlas opens a Silicon Valley Bank (now First Citizens) business bank account under the LLC’s EIN. The bank account accepts international wires and ACH transfers; the founder can fund the operating account and pay bills from anywhere.
Step 4: Stripe activates a merchant account under the LLC’s EIN. The Stripe merchant account is in the LLC’s name with the EIN, payouts to the Stripe-Atlas bank account. The founder can accept Stripe payments worldwide through the LLC.
Total cost: $500 one-time + standard Stripe processing rates on revenue. Total time: 2-4 weeks for full activation. The alternative (forming the LLC through a US registered agent, applying for EIN directly, opening a Mercury/Relay bank, applying to Stripe separately) is cheaper upfront but takes 3-6 weeks and requires more document translation.
Square for an LLC: the in-person-first choice
Square’s path for an LLC is broadly similar to Stripe’s but emphasizes the in-person hardware flow.
Setup time: 1-3 days for a US-owned LLC; 1-2 weeks for a foreign-owned LLC. Square’s underwriting is less thorough on beneficial-ownership structure than Stripe’s. Single-member LLCs with an SSN are approved in 1-2 business days; multi-member and foreign-owned LLCs in 1-2 weeks.
Square accepts CMRA addresses as the LLC’s principal office. This is a small but useful difference from Stripe, which historically required a residential or commercial street address (not a CMRA numbered mailbox). For a foreign founder using a virtual mailbox for the LLC’s principal office, Square’s path is cleaner.
Square’s hardware is materially cheaper. Square Reader ($0-$49 depending on model), Square Stand ($229), Square Register ($749). Stripe Terminal is more expensive ($59-$599). For a cafe, retail store, or professional service with a physical counter, Square’s hardware is the canonical answer.
PayPal Commerce for an LLC: the consumer-trust option
PayPal Commerce is the third flat-rate option for LLC accounts. Setup time varies widely; new PayPal accounts without consumer history often hold funds for up to 21 days as a risk control.
For an existing LLC with PayPal buyer history. If the LLC’s beneficial owners have personal PayPal accounts in good standing, the LLC’s PayPal Commerce approval can be instant. Useful when the buyer’s primary payment preferences include PayPal (B2B, freelance services).
PayPal’s Pay Later (installment plans) is the conversion differentiator. PayPal Pay Later on a B2C checkout lifts conversion 5%-15% for buyer segments that prefer installments.
PayPal’s account holds are heavier than Stripe/Square. An LLC with rapid volume spikes or a high chargeback rate is more likely to face a 21-day rolling hold on PayPal than on Stripe or Square. Track chargebacks; the safe ceiling is 0.5% chargeback rate under PayPal.
1099-K and the LLC’s tax reporting
Once the LLC has a Stripe, Square, or PayPal merchant account, the processor issues a 1099-K to the LLC if payments exceed the IRS reporting threshold (currently $5,000/year; proposed $600 threshold is held up in courts). The 1099-K reports gross payments processed through the LLC’s merchant account.
For the LLC, this means:
The 1099-K is to the LLC, not the owner. In Stripe Atlas’s setup, the 1099-K is issued to the LLC’s EIN. The owner reports the LLC’s net income on Schedule K-1 (for multi-member) or Schedule C (for single-member LLC). Combined with the LLC’s bookkeeping (which includes the Stripe payouts as the LLC’s gross income), the 1099-K ties to the tax return.
The owner’s SSN is on file but the 1099-K is to the LLC. For a single-member LLC, the 1099-K reports the LLC’s gross payments. The owner reports the LLC’s net income on Schedule C; the LLC’s gross income from 1099-K is roughly the same as Schedule C’s gross receipts.
Pick the processor that fits the LLC scenario
Stripe for software / SaaS / marketplace / international. Stripe Atlas for foreign-owned LLCs without an existing US LLC.
Square for physical-counter / retail / food service / professional services. Square accepts CMRA addresses cleanly.
PayPal Commerce as a secondary checkout option when the buyer persona is right. Set up the LLC’s primary processor first, then add PayPal at checkout as the conversion-lift add-on.
For the cost math at each plan tier, the payment processing fees page runs the full numbers. For the practical 3-way on API, hardware, consumer trust, the stripe vs square vs paypal page covers the difference. For the LLC’s payroll side (S-corp reasonable salary requirement and Form 941 filings), the payroll for an LLC page walks through each configuration.
Verify the Stripe Atlas or equivalent account-underwriting details directly with the processor before transferring funds. Foreign-owned LLC underwriting rules change occasionally; the canonical source is the processor’s own setup guide.
For the full vendor comparison (Stripe, Square, PayPal, plus the high-risk alternatives) at each volume tier, the best payment processor for small business comparison runs the math.
Last updated: October 2026
