6 Legal Facts About Blocking MCA ACH Withdrawals

Short answer: yes, stopping, reversing, or interfering with the daily debit is an event of default under virtually every MCA contract in existence.

This isn't a gray area. Your MCA agreement has a section — usually titled "Events of Default" or "Merchant Default" — that specifically lists blocking, stopping, or revoking ACH authorization as a breach. Not a minor breach. A material breach. The kind that triggers the acceleration clause, the kind that lets the funder come after you for everything.

And it doesn't matter why you blocked it. Your account was low, you were waiting on a receivable, you needed to make payroll first — none of that matters to the contract. The contract says you authorized daily debits. You revoked that authorization. You're in default. That's how the funder sees it, and that's how a judge will see it too.

The moment you block that ACH, the funder has the contractual right to demand the full purchased amount — not what you've paid down to, the original purchased amount minus whatever they've already collected.

So if you took a $150,000 advance with a purchased amount of $210,000, and you've paid back $80,000, you now owe $130,000. Immediately. In full. Plus default fees, plus legal fees, plus collection costs. That number can balloon 20-40% beyond what you thought you owed.

Most business owners think blocking the ACH buys them time. It does the opposite. It compresses the timeline. You went from owing a daily payment to owing six figures overnight.

This is the one that catches people off guard. If your MCA was originated in a state that enforces Confessions of Judgment (and many are structured to fall under New York jurisdiction specifically for this reason), the funder doesn't need to sue you first. They already have a signed document — you signed it — that lets them go straight to a court clerk, file the confession, and get a judgment entered against you without a hearing, without notice, without you being in the room.

That judgment can be used to freeze your bank accounts, garnish receivables, and lien your assets. And it can happen within days of the default, not weeks. Not months. Days.

New York restricted COJs in 2019 for out-of-state borrowers, but many funders restructured around it. If your agreement has a New York choice-of-law clause and you signed a COJ, you need to assume it's still live. Don't guess on this one. Read your contract, or have someone read it for you.

Here's what your bank can do: place a stop payment on the ACH. That's it. That's the extent of what they can do.

Here's what your bank cannot do: prevent the funder from filing a lawsuit, prevent a judgment from being entered, prevent a UCC lien from being enforced, prevent a restraining order from freezing your account at that same bank. The stop payment is a dam made of paper. It holds back the water for about 48 hours, and then everything comes through a different channel.

Some business owners think the bank is on their side here. The bank is neutral, at best. When a court order hits, the bank complies. When a UCC notice arrives, the bank's compliance department reviews it and acts accordingly. They're not going to fight the funder on your behalf. That's not their job, and they have zero incentive to do it.

You probably signed a personal guarantee. Almost every MCA agreement includes one, and almost every business owner either doesn't read it or forgets they signed it. When you block that ACH and trigger a default, the funder doesn't just have a claim against your LLC or your corp. They have a claim against you. Personally.

That means your personal bank accounts, your personal assets, your home (depending on state exemption laws), your vehicles — all of it is potentially on the table. The personal guarantee is what turns an MCA default from a business problem into a life problem. And the funder knows this. It's the leverage they use to force a settlement on their terms, not yours.

If you're married in a community property state — Arizona, California, Texas, a few others — your spouse's assets may be exposed too. That's not a scare tactic, that's how community property law works when one spouse personally guarantees a commercial obligation.

This is the fact that matters most, and it's the one most people get backwards.

The logic seems sound: if you stop the money going out, you buy yourself breathing room to figure out your next move. In reality, blocking the ACH is the single strongest signal you can send to a funder that you're about to disappear, move money, or file bankruptcy. And the funder's response is to move faster, not slower.

Within 72 hours of a blocked ACH, most funders will do some combination of the following:

Retry the debit 2-3 times, each time triggering an NSF fee from your bank ($25-$35 per attempt) and a returned payment fee from the funder ($50-$100 per attempt)

Assign your file to in-house collections, or an outside agency, who will call your business line, your cell, your personal guarantor's cell, and in some cases your vendors and customers listed on your bank statements

File a UCC lien enforcement notice with your credit card processor, directing them to redirect your receivables to the funder

File for a temporary restraining order (TRO) that freezes your business and personal bank accounts — sometimes within 24-48 hours of the default

Engage litigation counsel to file a breach of contract suit and, if applicable, enter a Confession of Judgment

That's not a 30 day process. That's a 72 hour process. Some of it happens simultaneously. By the time you've figured out your "next move," the funder has already made theirs.

If you can't afford the daily payments, blocking the ACH is the worst way to handle it. It feels like control, but it's actually surrender — you're handing the funder the contractual justification to do everything they were already prepared to do.

The better move is to get ahead of it. Negotiate before you default, not after. Once you block that ACH, your leverage drops to almost zero because now the funder has a breach, a legal basis for acceleration, and a timeline that's entirely in their control, not yours. Before the block, you're a struggling merchant. After the block, you're a defaulted merchant. The funder treats those two things very differently, and so does a judge.