Welcome to Delancey Street. If you're reading this, your MCA lender is probably pulling money out of your bank account every single day and you want it to stop. We get it. This is one of the most common calls we receive.

Can you actually stop ACH withdrawals through your bank?

Technically, yes. You can call your bank and revoke ACH authorization. Banks are required to honor stop payment requests under federal banking regulations (NACHA rules). You can request a stop on a specific originator, a specific amount, or a blanket revocation.

But here's what nobody tells you. Revoking ACH authorization and being legally safe are two completely different things. Your MCA agreement defines blocking ACH debits as an event of default. The moment you do it, you're in breach. And MCA lenders don't wait around to see if you change your mind.

Here's what typically happens within 72 hours of a bank-level ACH block:

  • The funder rotates their originator ID and tries to pull again. Many lenders use multiple originator IDs specifically for this reason — your bank blocks one, they come in through another. A single stop payment doesn't always work the way you think it does.
  • The full balance gets accelerated. You no longer owe the daily payment. You owe the entire purchased amount (the total remaining balance plus default fees, attorney fees, and whatever else the contract allows). On a $100,000 advance with $60,000 remaining, you now owe $60,000 immediately. Plus fees.
  • The lender sends UCC-1 demand notices to your credit card processor. Stripe, Square, PayPal, Clover, First Data — all of them will freeze your merchant account if they receive a UCC lien demand. Your card processing stops. Your cash flow goes to zero.
  • If your MCA agreement includes a confession of judgment (and many of them do, especially out of New York), the lender can file that judgment without ever going to court. You waived your right to dispute it when you signed the agreement. Most business owners don't even remember signing it.
  • Collections starts. Calls to your cell, your business line, your personal guarantor. Some lenders will contact your vendors and customers directly. They have the contractual right to do this.

That's the timeline. It's fast, it's aggressive, and it's entirely legal under most MCA agreements.

What most people get wrong about blocking ACH

There's a misconception that blocking the ACH is a negotiating tactic. That if you stop the bleeding, the lender will come to the table and work something out. This is almost never how it plays out. MCA lenders interpret a blocked ACH as hostile action. It triggers the enforcement playbook, not the negotiation playbook.

Another misconception: opening a new bank account and moving your deposits there. This feels like a solution. It's actually listed as an event of default in virtually every MCA agreement ever written. The lender's collections team monitors for exactly this. They'll find the new account (your deposits leave a trail through your merchant processor), and you'll have added another breach to the pile.

What actually works

Here's what works if you need to stop MCA ACH debits without blowing up your situation.

1. File a reconciliation request first.

Almost every MCA contract has a reconciliation clause. This is the provision that says if your revenue drops, the lender is required to adjust your daily payment to reflect your actual sales volume. Most business owners don't know this clause exists. Most lenders pretend it doesn't.

Here's why this matters: if you submit a reconciliation request with documentation (bank statements showing revenue decline) and the lender ignores it or denies it without justification, that's a problem for them, not you. A lender who refuses to honor reconciliation is arguably in breach of their own agreement. And in court, a non-functioning reconciliation clause is one of the primary factors judges use to recharacterize your MCA as a loan — which means usury laws apply, and suddenly the lender's 80% effective APR becomes illegal.

File the reconciliation request in writing. Email. Keep the receipt. This creates a paper trail that protects you regardless of what happens next.

2. Get an attorney to send a demand letter.

An attorney demand letter does something a phone call to your bank can't do. It forces the lender to acknowledge a formal dispute. Many MCA agreements require dispute resolution (mediation or arbitration) before the lender can escalate to enforcement. A demand letter from counsel triggers that process.

While the dispute is pending, an aggressive attorney can get interim relief — sometimes a temporary restraining order that stops the debits while the dispute plays out. This buys you time without triggering the default cascade that a bank-level block would.

3. Negotiate a settlement or restructured payment.

This is the part most business owners skip because they're panicking. But here's the reality: MCA lenders settle. They do it regularly. A lender would rather take 50 to 60 cents on the dollar in a structured settlement than spend $30,000 in legal fees chasing a business owner who's already struggling.

The key is negotiating from a position where you haven't already defaulted. Once you've blocked ACH on your own, closed your bank account, and triggered every enforcement clause in the agreement, your leverage disappears. The lender has no incentive to negotiate because they already have the tools to take what they want.

4. If you've already blocked and everything is on fire — talk to a bankruptcy attorney about Subchapter V.

This is the last resort, but it's a real one. Subchapter V (small business reorganization under Chapter 11) was expanded in 2019 and has become a primary tool for businesses buried in MCA debt. The moment you file, an automatic stay kicks in. All collection activity stops. All ACH debits stop. All UCC enforcement stops. All restraining orders get frozen.

It's not free, it's not fast, and it's not painless. But if you're already in default with multiple stacked MCAs and your accounts are getting hit from every direction, Subchapter V can be the reset that saves the business.

The bottom line

You can block MCA ACH debits. The question is whether you do it in a way that gives you leverage or in a way that hands the lender everything they need to bury you. Calling your bank and requesting a stop payment feels like action. It is action — it's just the wrong action, at the wrong time, without the legal cover you need.

If your MCA payments are crushing your cash flow, the move is: reconciliation request first, attorney involvement second, negotiated settlement third. In that order. Every other sequence makes it worse.

If you're dealing with this right now, call us. We do this every day.