ACH Limit Guide: All You Need to Know In 2026

Key takeaways

• Recognize that your bank and Nacha set ACH limits, because no federal cap exists.
• Compare common limits, which often run from $1,000 per transaction to $25,000 per day.
• Contact your bank to request a higher ACH limit when your payment needs grow.
• Confirm that Same Day ACH caps each payment at $1 million before sending large transfers.

What is an ACH transfer?

ACH transfer is a payment method where funds are transferred electronically between banks or financial institutions. ACH payment transactions are handled by the ACH (Automated Clearing House) network and regulated by the US federal government.

ACH is a very popular way to receive or send payments, especially in the B2B world. According to Nacha, the organization that oversees ACH transfers, there were 35.2 billion payments valued at $93 trillion in 2025. ACH transfers are commonly used to pay vendor and supplier bills, payroll, insurance claims, and for government payments, such as taxes and benefits.

It’s important to note that ACH and international payments are two different methods. ACH is typically only available for payments within the US, while international payments are used to transfer money to vendors or suppliers outside the US. Most US banks don’t support international ACH transfers.

How long does an ACH transfer take? Standard ACH payments take up to three business days, while same-day ACH is processed and cleared on the same day, and comes with a higher fee.

ACH transfers have set limits indicating the maximum dollar amount that can be sent in a single transaction or on one day. Businesses should get to know the various rules dictating the ACH transfer limit so they can choose the best method and bank to suit their needs.

How do ACH limits work?

An ACH limit is the maximum amount you can send or receive through the ACH network in one transaction, day, or month. Your bank checks each payment against this limit and blocks anything above it.

When an ACH transaction is initiated, the payer’s bank will only allow an amount up to the ACH limit. If the payment amount is too large, it won’t be authorized.

For example, imagine a business that mostly opts to pay bills with ACH. The business recently underwent renovations in their retail store, and they owe the contractor $12,000 for the work.

However, the ACH limit per day is $10,000. If the business initiated the ACH transfer for the full amount, it would be rejected. In these circumstances, the business could negotiate to pay the bill via ACH transfer in two separate transactions, one day after the other. This way, they can enjoy the benefits of ACH (fast online payment, low fees, no paper checks needed) while staying within the ACH limit.

Who sets ACH limits?

ACH payment processing is governed by comprehensive rules and regulations, set by the Nacha organization in compliance with federal and financial laws.

While Nacha permits Same Day ACH payments of up to $1 million per payment today, with an approved increase to $10 million in September 2027, many banks are much stricter, setting the ACH limit to just a few thousand dollars. When it comes to defining what is ACH limit, the decision is ultimately up to the various banks and financial institutions that offer ACH payments as a service, in compliance with Nacha rules and the law.

Factors affecting ACH limits

There are several factors that impact the ACH withdrawal limit. Let’s take a look at each in turn.

Common ACH limit ranges

ACH limits for personal accounts and business accounts vary considerably from bank to bank or from processor to processor. Some banks do not have a set limit but determine the ACH limit according to the account owner’s history and activity.

Limits are typically set per transaction, per day, or per month.

ACH limit ranges start from around $1,000 per transaction to upwards of $25,000 per day.

Increasing your ACH limit

Although ACH limits are set by the bank, they aren’t necessarily set in stone. For businesses with a good financial standing and track record, it’s possible to negotiate with the bank or payment provider to increase the ACH limit. Here are some things you can try if you want to increase your ACH limit and transaction volume:

1. Get in touch with the bank: There’s no better way than to ask directly. Contact your bank representative, discuss your needs, and find out whether it’s possible to customize your ACH limit.
2. Show a strong financial history: Banks are, understandably, in the business of reducing risk. If your business can show a consistent transaction history, stable cash flow, and good overall credit score, they may be more inclined to increase your ACH limit.
3. Back up your claims with documentation: Come armed with recent financial statements, projected transaction volume, and any other documents that can strengthen your case for a higher ACH limit.
4. Take care of your relationship with the bank: You are more likely to receive an ACH limit increase (and other requests) if you have a long-standing and solid relationship with your bank. Banks that know and trust your business will naturally be more flexible with you.
5. Request a temporary increase: You may be able to secure a temporary increase during a particularly high volume transaction period. This can help to convince the bank that you are responsible with your finances and ACH usage and set the stage for a permanent increase of your ACH limit.

ACH limit exceptions and overdrafts

When a business initiates an ACH payment, ideally there are enough funds in the account to cover it. However, with multiple outgoing payments, this can be difficult to track. Banks and financial institutions impose ACH limits to help reduce the risk of insufficient funds and overdrafts. This is good for the bank and good for your business.

At the same time, there may be periods in which a business needs to send or receive a high volume of ACH transactions, and ACH limits can hamper the process.

A good tactic for ACH limit exceptions is to be transparent with your bank. If you are anticipating a large incoming or outgoing ACH payment, let them know in advance so they can process it quickly to prevent overdrafts, delays, or other issues.

ACH limits are a built-in safeguard designed to make accounts payable and receivable more secure and less risky—consider them your friend rather than foe. But don’t be shy about communicating with your bank or payment provider so they can optimize the ACH limits where possible.

Move money with fewer limits using Melio

Melio lets you schedule and send ACH payments in a few clicks, so you can work within your bank’s limits without the hassle.

Depending on your linked bank account, you can take advantage of favorable ACH limits and other tools to streamline how you pay and get paid. Sign up for Melio to get started.

ACH limit FAQs