Personal Guarantee on a Merchant Account: What You're Liable For

Near the end of most merchant account applications there is a second signature line. The first signs for the business. The second is for a person, usually the owner, under a heading such as Personal Guaranty or Guarantor. Many owners sign it as part of the paperwork, on the assumption that the LLC or corporation they formed keeps their personal money separate from the business's debts.

For a merchant account, it does not. A personal guaranty is a promise that if the business cannot pay what it owes the processor and the bank, you will. In a high-risk account, what the business can come to owe includes chargebacks that arrive months after a sale, network fines and the cost of collecting from you. This guide walks through what those clauses say, using the published wording of two real merchant agreements, and what a federal appeals court decided about how long a guaranty reaches back.

Why processors ask for a personal guarantee

When a processor deposits money for a card sale, the money is not final. The cardholder can dispute the charge, and if the dispute succeeds, the issuing bank takes the money back from the acquiring bank, which takes it back from the merchant. Until the dispute window for every sale has closed, the processor and the bank have paid out money they may need to recover.

If the business cannot cover that, the bank absorbs the loss. A guaranty gives the bank a second person to collect from. One published agreement says so outright: the decision to enter into and continue processing for the merchant is based on the financial condition of the guarantor and the guarantor's ability to guarantee the merchant's obligations. That is also why underwriters look at the owner's personal credit, not only the business's.

What the guaranty actually covers

The two agreements we read are the Merchant Processing Agreement Terms published on Payments Hub's enrollment site, dated 12 May 2026, and a merchant application and agreement for Anovia Payments and Merrick Bank that NMI posted to its website in January 2025. In the Payments Hub terms the other party is "Servicers", the bank, the agent and the processor together; we say "the processor" below for short. Both agreements make the guarantor answerable for everything the merchant owes, not for a fixed amount.

The Payments Hub terms (Section 1.12) say guarantors jointly and severally, unconditionally and irrevocably guarantee the continuing full and faithful performance and payment of each of the merchant's duties and obligations, as the agreement now exists or is amended, with or without notice. The Anovia guaranty spells out that it covers all amounts payable under the agreement, including charges, interest, costs and expenses such as attorney's fees and court costs.

In practice, that sweeps in:

• Chargebacks and returns the business cannot cover from its own funds
• Fees, including early termination fees
• Fines and penalties, which the Payments Hub terms let the processor debit alongside fees and chargebacks
• The processor's legal and collection costs if it has to enforce the agreement or the guaranty

Joint and several matters when a business has more than one guarantor. It means the processor can collect the whole amount from any one of you, not a proportionate share from each.

The processor does not have to go after the business first

Both agreements say the processor may proceed against the guarantor directly. In the Payments Hub wording, the processor may proceed against the guarantor without first exhausting its remedies against any other person or entity or any security it holds. The Anovia guaranty says the processor and the bank can demand payment from a guarantor without first seeking payment from the merchant, any other guarantor or any security the bank holds.

The Anovia guaranty also lists events that do not reduce the guarantor's liability. Among them:

• The agreement cannot be enforced against the merchant for any reason, including bankruptcy
• The processor or bank agrees to changes in the agreement, with or without notice to the guarantor
• The processor or bank releases another guarantor or the merchant from an obligation

The same document says the guarantor agrees the processor may delay enforcing its rights without losing them, and waives any applicable statute of limitations. Whether a court would enforce a waiver like that is a question of state law, but the intent of the wording is plain.

Its continuing guaranty clause (Section 5.26) also reaches past the agreement in front of you. It covers the merchant's obligations under the agreement or any other agreement currently in effect or in the future entered into between the merchant or its principals and the provider. It adds that the provider may, without notice to the guarantor, renew or extend the agreement and change rates, limits, charges and fees, all of which may increase the guarantor's obligations.

It can reach your personal bank accounts and assets

Some agreements go further than a promise to pay. The Payments Hub terms say that if the business account lacks sufficient funds, the merchant and guarantors authorize the processor, without notice, to debit any bank account in their names or the name of any affiliated entity (Section 1.7). Section 1.10 grants the processor a security interest, under Michigan's Uniform Commercial Code, in all of the merchant's and the guarantor's personal assets and property, including sales drafts, deposits and reserve accounts standing in either name. It authorizes the processor to file financing statements to record that interest.

The same section lists how the processor may enforce that interest, including an immediate ACH debit to any deposit account in the merchant's or guarantor's name without notice, taking possession of the merchant's or guarantor's personal assets, and obtaining a writ of attachment or possession without bond. Agreements are not all worded the same way, so read the one you are given for clauses like these rather than assume.

Your personal credit is part of the account

The Payments Hub terms authorize credit inquiries at the time of application and at any later time while the merchant owes an obligation, including a consumer credit report on each guarantor and on any individual who is or becomes personally liable (Section 1.5). Guarantors must also tell the processor about changes in their contact information and financial circumstances (Section 1.6).

So the guaranty is not a one-time signature. While the account is open, and for as long as anything is owed afterward, the guarantor's own finances are part of how the processor judges the account.

Closing the account does not end the guaranty

The most expensive misunderstanding about personal guarantees is about time. Because a chargeback can arrive long after the sale, a business can close its merchant account, or switch processors, and still owe the old processor money for months. The guaranty covers that debt too.

The Payments Hub terms say all rights and obligations existing at the time of termination survive it, and that the merchant's obligation to maintain a reserve account survives termination by 270 days, or longer depending on the merchant's product and business practices. Its liabilities include actual and potential post-termination chargebacks. Both agreements say the guaranty binds the guarantor's heirs and is not discharged by the guarantor's death.

A 2023 federal appeals decision shows how far back this can reach. In Electronic Merchant Systems LLC v. Gaal, 58 F.4th 877, the Sixth Circuit considered a processor's claim against Peter Gaal, who had personally guaranteed a 2014 merchant agreement for his company, Procom America, a seller of historical tours. In 2019 the processor and Procom signed a new agreement that superseded the old one, and its guaranty was signed by a different employee, not Gaal. When the COVID-19 pandemic began in March 2020, many Procom customers canceled their purchases, and the processor said the chargebacks came to more than $10 million. Procom went into Chapter 7 bankruptcy, and the processor sued Gaal on his guaranty.

The district court dismissed the claim on the reasoning that every chargeback happened after the 2019 agreement replaced the one Gaal guaranteed. The Sixth Circuit reversed. It held that chargeback debt relating to transactions made before the 2019 agreement was an obligation arising under the 2014 agreement, for which Gaal may be liable under his guaranty. The processor had a right to repayment when each sale was made and credited to the merchant, even though that right depended on a later chargeback. The court said that ending an agreement does not by itself erase obligations that have already accrued; that takes an intentional agreement between the parties to eliminate them. Whether the 2019 agreement was that kind of agreement, a novation, was left to the district court, along with Gaal's personal-jurisdiction defense. The ruling decided when the debt arose, not that Gaal ultimately had to pay.

The practical lesson is that the date you stop being the guarantor does not end your exposure on sales made while you were. For merchants that sell services delivered later, such as travel, events or memberships, that tail can be long.

Selling the business does not end it either

Owners planning an exit should read the assignment clause. The Payments Hub terms (Section 1.44) say that if a merchant sells its business and the new owners incur chargebacks or returns, then absent notification to and consent from the processor, both the new owner and the original owner and all guarantors will be held personally liable for the merchant's liabilities before and after the sale. The same clause prohibits assigning future card receipts to a merchant cash advance company or other buyer of those payments without the processor's written approval.

If you sell, tell the processor before closing, get the new owner onto their own agreement and guaranty, and get written confirmation of what you remain liable for. Under the reasoning in Gaal, even a clean handover leaves you exposed for disputes on sales made before it.

What the guaranty does not change about MATCH

A guaranty is about money. A separate consequence follows the owners whether or not they signed one. The Payments Hub terms describe MATCH, Mastercard's list of terminated merchants, as containing business names and the identification of principals, and say the processor is required to report the merchant and its principals if the merchant is terminated for reasons such as fraud or excessive chargebacks. Under Mastercard's rules, MATCH records stay in the system for five years before they are purged, whatever happens to the debt. Our guide to checking the MATCH list explains how to find out whether you are listed and what to do next.

What to ask before you sign

Both agreements above build the guaranty into the application itself, so declining to sign it may mean no approval. There is still room to understand it, and to ask whether it can be narrowed. Before signing, ask:

1. Who must sign? Ask whether every owner has to guarantee or whether one principal is enough. The Anovia application requires that a guaranty for a corporation or LLC be signed by a principal or affiliate of the merchant.
2. Is the guaranty capped? Ask whether liability can be limited to a dollar amount or tied to the reserve the account holds.
3. Does it cover only this agreement? Clauses that reach any other present or future agreement with the provider extend your exposure to accounts you have not opened yet.
4. Can it be released for future transactions? Ask how a guarantor who leaves the business ends liability for sales made after they leave, and get that process in writing.
5. Does it reach personal bank accounts and assets? Look for debit authorizations and security interests covering the guarantor's own accounts and property.
6. How long do obligations survive termination? Find the reserve survival period and any language about post-termination chargebacks.
7. What happens if the business is sold? Read the assignment clause and the notice it requires.

Because these clauses decide how much personal risk you take on, have a lawyer licensed in your state read the guaranty before you sign it. The cost is small next to months of post-termination chargebacks.

Keeping a guarantee from ever being called

A guaranty is only called when the business cannot cover what it owes, and that usually means chargebacks have outrun the account. The protections are the ordinary ones: a clear billing descriptor, delivery and cancellation records for every sale, prompt refunds when a customer asks, and a reserve sized to your real dispute exposure rather than resisted. If you are winding down, keep the business account funded until the dispute window on your last sales has closed instead of draining it the day you stop processing.

PayKings works with high-risk merchants on the full agreement, guaranty included, before anyone signs. If you have an application in front of you and want to know what the guarantor line commits you to, talk to a PayKings specialist before you sign it.