In This Article
- 1.Can you legally stop an MCA ACH debit?
- 2.What most business owners do wrong
- 3.What actually works
- 4.1. Talk to an attorney before you block anything. Not after. Before. An attorney who understands MCA agreements (not your cousin who does real estate closings) can review your specific contract, identify whether you have a confession of judgment clause, and tell you exactly what the funder can and can't do in your state. This matters because the legal landscape varies dramatically — New York passed amendments to CPLR 5015 and 5222-a that give business owners more protections than they had even 3 years ago. But you have to know those protections exist to use them.
- 5.2. If you're going to block, do it as part of a settlement strategy. Blocking the ACH is a tool. It's not a solution. When it's done correctly — with legal representation, with a settlement offer ready to go, with documentation of financial hardship — it puts pressure on the funder to negotiate. When it's done in a panic at 11pm on a Tuesday because your account is about to go negative, it puts you in a worse position than you started.
- 6.3. Get ahead of the UCC filing. Your funder already filed a UCC-1 lien against your receivables when you took the advance. At the moment of default, they can (and will) send notices to your payment processor, your customers, anyone who owes you money. They'll instruct those parties to redirect payments to the funder. If you don't have a plan for this, blocking the ACH just means you stopped the small bleed and opened a bigger one.
- 7.4. Don't stack another MCA to cover the one you can't pay. This is the single most common mistake we see. You're drowning in one MCA, so you take a second one to cover the payments on the first. Now you have two funders with UCC liens, two daily ACH debits, and twice the exposure. Stacking is also a default trigger under virtually every MCA agreement, so now you're in default on the first MCA even if you haven't missed a payment on it.
- 8.The real question isn't whether to block — it's when and how
If you're reading this, you're probably already behind on your MCA payments. Or you're about to be. And you're thinking about calling your bank, telling them to block the daily ACH debit, and buying yourself some time.
Short answer: You can block an ACH debit from your bank. That part is true. But doing it wrong — which is what most business owners do — will trigger a default, accelerate your full balance, and potentially get your bank accounts frozen within 72 hours. So before you pick up the phone, read this.
1Can you legally stop an MCA ACH debit?
Yes. Under NACHA operating rules (the system that governs ACH transactions in the US), you have the right to revoke an ACH authorization. Your bank is required to honor that request. This is not a gray area, this is federal payment processing regulation.
But here's where it gets complicated — and where most business owners destroy their own position.
Your MCA agreement almost certainly has a clause that says you cannot revoke, block, or interfere with the daily ACH debit without the funder's written consent. The moment you block that debit, you are in technical default of your agreement. Not might be. Are.
And that default triggers everything. Balance acceleration. UCC enforcement. Collections calls within 48 hours. Potentially a confession of judgment filing (if your agreement has one, and most of them do).
2What most business owners do wrong
Here's what we see, over and over again:
They call their bank and issue a stop payment. This works for exactly one debit. The funder sees the return code, knows what you did, and now they're not just collecting — they're retaliating. You've just told them you're trying to run.
They close the bank account entirely. This is the nuclear option and it almost never works in your favor. The funder already has your account information, your EIN, your personal guarantor's SSN. Closing the account doesn't make you invisible, it makes you hostile. And most MCA agreements specifically list closing your bank account as an event of default.
They open a new account at a different bank and redirect deposits there. Same problem. The funder will find out — usually within a week, sometimes within days. They have access to your bank statements from the application, they know your customers, they know your payment processor. Redirecting deposits without telling the funder is fraud-adjacent behavior and they will use it against you in court.
They call the funder and say "I can't pay." This sounds reasonable but the timing matters enormously. If you call after you've already blocked the ACH, you've lost leverage. The funder already knows you're in default and they're already moving. If you call before, you might actually have options.
3What actually works
The business owners who come out of this in one piece, they all did the same thing. They didn't block the ACH first and figure it out later. They got a strategy in place before they touched anything.
41. Talk to an attorney before you block anything. Not after. Before. An attorney who understands MCA agreements (not your cousin who does real estate closings) can review your specific contract, identify whether you have a confession of judgment clause, and tell you exactly what the funder can and can't do in your state. This matters because the legal landscape varies dramatically — New York passed amendments to CPLR 5015 and 5222-a that give business owners more protections than they had even 3 years ago. But you have to know those protections exist to use them.
52. If you're going to block, do it as part of a settlement strategy. Blocking the ACH is a tool. It's not a solution. When it's done correctly — with legal representation, with a settlement offer ready to go, with documentation of financial hardship — it puts pressure on the funder to negotiate. When it's done in a panic at 11pm on a Tuesday because your account is about to go negative, it puts you in a worse position than you started.
63. Get ahead of the UCC filing. Your funder already filed a UCC-1 lien against your receivables when you took the advance. At the moment of default, they can (and will) send notices to your payment processor, your customers, anyone who owes you money. They'll instruct those parties to redirect payments to the funder. If you don't have a plan for this, blocking the ACH just means you stopped the small bleed and opened a bigger one.
74. Don't stack another MCA to cover the one you can't pay. This is the single most common mistake we see. You're drowning in one MCA, so you take a second one to cover the payments on the first. Now you have two funders with UCC liens, two daily ACH debits, and twice the exposure. Stacking is also a default trigger under virtually every MCA agreement, so now you're in default on the first MCA even if you haven't missed a payment on it.
8The real question isn't whether to block — it's when and how
You're not wrong for wanting to stop the bleeding. A daily ACH debit of $800, $1,200, $2,000 will drain a business account in weeks. The instinct to block it is rational. But the execution matters more than the decision.
If you block the ACH without a legal strategy behind it, you're handing the funder a default on a silver platter. They get to accelerate the full balance, file in court, and potentially freeze your accounts — all because you gave them the trigger they needed.
If you block the ACH with an attorney, a settlement framework, and a plan for the UCC enforcement that's coming, you've taken a defensive position that actually has leverage behind it. The funder knows you're represented. They know a fight is more expensive than a deal. And that changes the math entirely.
Most business owners don't know they have options until it's too late. You're reading this, which means it's not too late for you. But it will be if you call your bank tomorrow morning without a plan.