# EFT vs ACH vs Wire Transfer: A Practical Comparison for SaaS

> EFT, ACH, and wire transfers are not the same thing. Here is how each one moves money, what they cost, when to use them, and which fits SaaS billing best.
- **Author**: Ayush Agarwal
- **Published**: 2026-05-28
- **Category**: Payments, SaaS, Bank Transfers
- **URL**: https://dodopayments.com/blogs/eft-vs-ach-vs-wire-transfer

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EFT, ACH, and wire transfer are three terms that get used interchangeably in everyday business conversation. They should not be. EFT is the umbrella term for any electronic transfer of funds. ACH is one specific type of EFT that runs on the US Automated Clearing House network. Wire transfer is a different type of EFT that settles in near real-time through bank-to-bank messaging networks like Fedwire and SWIFT.

The distinction matters because the cost, speed, and reversibility of each method are different by an order of magnitude. A SaaS business choosing between ACH and wire for a $10,000 enterprise invoice has cost options ranging from $1 to $50 and settlement times ranging from minutes to three business days. The right choice depends on the use case.

This guide breaks down what each term actually means, how the underlying networks work, what they cost, and how to pick the right rail for SaaS billing scenarios.

## What EFT Actually Means

EFT stands for Electronic Funds Transfer. It is a generic term defined in US federal banking regulation (the Electronic Fund Transfer Act of 1978) to cover any movement of money between accounts that happens electronically rather than through paper checks or physical cash.

Under this definition, all of the following are EFTs:

- ACH transfers (direct deposit, autopay, subscription billing)
- Wire transfers (Fedwire and SWIFT)
- Real-time payments (RTP and FedNow)
- Debit card transactions
- Credit card transactions
- ATM withdrawals
- Online bill pay
- Person-to-person transfers (Zelle, Venmo, PayPal)

When someone says "send me an EFT," they almost certainly mean ACH or wire (since those are the bank-to-bank rails businesses actually use), but the term itself is broad. In Canada and other countries that adopted the term, EFT often refers specifically to ACH-equivalent batch transfers, which adds to the confusion.

For SaaS founders, the practical takeaway is to ask for the specific rail by name. "Send a wire" or "set up an ACH debit" is unambiguous. "Send an EFT" is not.

## How the ACH Network Works

ACH is the US batch payment network governed by Nacha. It processes more than 30 billion transactions per year and handles the bulk of recurring payments in the US economy - payroll, autopay bills, subscription billing, and B2B invoicing.

Key characteristics:

- **Batch processing**: Transactions are grouped throughout the business day and submitted to the Federal Reserve or The Clearing House in batches. There is no real-time authorization
- **Two directions**: ACH credit pushes funds from payer to payee. ACH debit pulls funds from payer to payee, with prior authorization
- **Standard settlement**: 1-3 business days
- **Same Day ACH**: Available for an additional fee, settles within hours
- **Per-transaction fees**: Typically $0.20-$1.50 flat regardless of amount
- **Returns possible for up to 60 days** on consumer accounts (for unauthorized debits)
- **Used domestically**: ACH does not cross US borders, though country equivalents like SEPA (EU), BACS (UK), and PAD (Canada) exist

For a deeper look, see [what is ACH payment](https://dodopayments.com/blogs/what-is-ach-payment-saas-guide).

## How Wire Transfers Work

Wire transfers are individual, real-time bank-to-bank transfers. Each wire is processed as a discrete transaction by the originating and receiving banks, with settlement happening directly through one of two networks: Fedwire (operated by the Federal Reserve) for domestic US transfers, and SWIFT (a messaging network, not a settlement system) for cross-border transfers.

Key characteristics:

- **Real-time settlement**: Domestic wires typically settle within hours, often within minutes during business hours
- **One-way push**: Wires always go from sender to receiver. There is no "pull" wire equivalent to ACH debit
- **Individual processing**: Each wire is a separate transaction, not part of a batch
- **High per-transaction fees**: Typically $15-$50 for outgoing domestic wires, $25-$75 for international wires
- **Effectively irreversible**: Once a wire settles, reversing it requires the recipient's cooperation. There is no consumer-friendly dispute window
- **Used for high-value transactions**: Most US banks impose minimum wire thresholds ($1,000+) or charge flat fees that make wires uneconomic below $500

International wires through SWIFT add complexity: they pass through one or more correspondent banks, each of which may take a fee. A wire sent from the US to India might net $25-$50 less than the sent amount after intermediary fees. Settlement times for international wires range from same-day to 3-5 business days depending on the corridor.

## How Real-Time Payments (RTP and FedNow) Work

Real-time payment networks are a third category, distinct from both ACH and wires. RTP (operated by The Clearing House) and FedNow (operated by the Federal Reserve) both launched in the US in recent years and offer settlement within seconds, 24/7, including weekends and holidays.

Key characteristics:

- **Instant settlement**: Funds available to recipient within seconds
- **24/7/365 availability**: Unlike ACH and Fedwire, which only run during business hours
- **Lower per-transaction fees than wires**: Typically $0.25-$1.00
- **Push-only**: Like wires, RTP and FedNow do not support pull payments. The sender initiates
- **Limited bank adoption**: Coverage is growing but not universal. Some smaller US banks do not yet support either network
- **Per-transaction caps**: RTP caps individual transfers at $1 million; FedNow at $500,000

For SaaS, RTP and FedNow are most useful for payouts (sending money to suppliers, employees, or affiliates) and for B2B billing where instant settlement is worth the higher per-transaction cost than ACH.

## Side-by-Side Comparison

| Attribute | ACH | Wire (Fedwire) | International Wire (SWIFT) | RTP / FedNow |
| --- | --- | --- | --- | --- |
| Settlement time | 1-3 business days | Same-day, often within hours | 1-5 business days | Seconds |
| Cost (originator) | $0.20-$1.50 flat | $15-$50 flat | $25-$75 + intermediary fees | $0.25-$1.00 flat |
| Cost (recipient) | Usually free | $0-$15 incoming fee | $0-$25 incoming fee | Usually free |
| Direction | Credit or debit (pull) | Push only | Push only | Push only |
| Reversibility | 60 days for unauthorized consumer debits | Effectively irreversible | Effectively irreversible | Effectively irreversible |
| Best for | Recurring billing, payroll, B2B invoicing under $10K | Large one-time B2B payments, real estate closings | Cross-border B2B | Real-time payouts, urgent B2B |
| Availability | Business hours only | Business hours only | Business hours in both corridors | 24/7/365 |
| Per-transaction limit | $1M for Same Day, no cap for standard | $0 minimum, no cap | $0 minimum, no cap | $1M (RTP) / $500K (FedNow) |

## When SaaS Should Use Each Rail

For a SaaS business, the choice between rails depends on the customer relationship, the transaction size, and the urgency.

**Use ACH debit for recurring subscriptions.** The cost is the lowest of any rail, the customer authorization model fits subscription billing perfectly, and the settlement delay is acceptable for revenue that recurs every month. ACH debit is the default for B2B SaaS with annual contracts.

**Use ACH credit for customer-initiated B2B payments.** When an enterprise customer prefers to push payments to you (their AP team handles the disbursement on their schedule), ACH credit lets them do that cheaply. You provide your bank account number and routing number on the invoice, and they push funds when the invoice is approved.

**Use wires for large one-time transactions.** Enterprise SaaS deals that include upfront annual payments of $50,000+ are often paid by wire because the customer's AP team prefers the immediate confirmation. The wire fee ($15-$50) is rounding error on a six-figure invoice.

**Use international wires for cross-border enterprise deals.** When a US SaaS sells to a buyer in Asia or Europe that does not have US bank accounts, an international wire is often the only practical option. Build the wire fee into the invoice rather than absorbing it.

**Use RTP or FedNow for payouts.** If you have a marketplace component or affiliate program, real-time payments let you pay sellers and affiliates instantly. The faster payouts often translate into stronger seller and affiliate loyalty than slower ACH disbursements.

**Use cards for everything else.** For B2C SaaS, low-ticket B2B, self-serve signups, and any case where the customer wants to pay immediately at checkout, cards still win. The cost is higher but the conversion advantage of frictionless checkout typically more than offsets the fees.

## Reversibility Differences That Matter

The biggest functional difference between ACH and wires is reversibility, and it has direct implications for SaaS cash flow management.

**ACH debits can be returned for up to 60 days** on consumer accounts (with a 2-business-day window for stop-payment requests). If a customer claims an ACH debit was unauthorized 45 days after settlement, the bank can pull the funds back from the merchant. This is functionally similar to a card chargeback - the merchant has to respond with evidence, and the dispute counts against the merchant's ACH return rate.

**Wires are effectively irreversible.** Once a wire settles, the only way to recover the funds is to convince the recipient to send them back. There is no bank-level dispute process for wires. This makes wires safer for the recipient but riskier for the sender, especially in fraud scenarios. A buyer who sends a wire to a fraudster typically cannot recover the funds.

**RTP and FedNow are also irreversible** by design, with a small caveat: both networks support an optional "Request for Return" message that lets the receiving bank attempt to recover funds, but compliance is voluntary.

For SaaS, the practical implication is that ACH revenue is not certain revenue until the 60-day return window has passed (in practice, until the 5-7 day window where most R-codes return). Wire revenue is certain the moment it settles. This affects how aggressively you can deploy ACH-collected revenue versus wire-collected revenue.

A useful framing from working on payment infrastructure at Dodo Payments: most teams think about payment rails as a cost problem, but reversibility is often the bigger issue at scale. Treating ACH funds as conditional for the first several days and final only after the return window closes, while wire funds are final on receipt, leads to very different cash flow and reconciliation patterns than card-only operations.

## How a Merchant of Record Handles All of These

For SaaS companies that do not want to maintain separate integration paths for each rail, a [Merchant of Record](https://dodopayments.com/blogs/what-is-a-merchant-of-record) abstracts all of them behind a single API. The MoR holds the bank relationships, manages ACH origination compliance with Nacha, processes wires through its acquiring bank, and accepts cards through its processor partners.

From the SaaS company's perspective, the integration is a single payment API. The customer chooses a payment method at checkout (card, ACH, wire, local bank transfer, or wallet), the MoR processes through the appropriate rail, and the SaaS company receives a consolidated payout that combines revenue from all rails.

Dodo Payments operates as a Merchant of Record and supports cards, digital wallets (Apple Pay, Google Pay), BNPL (Klarna, Afterpay), and 30+ local payment methods including UPI, Pix, iDEAL, and Bancontact across 220+ countries - through one integration. ACH and SEPA Direct Debit are not currently supported. See the [payment methods documentation](https://docs.dodopayments.com/features/payment-methods) for the current list of supported rails.

## Cross-Border Equivalents to ACH

The ACH network is US-specific, but every developed economy has a domestic equivalent. SaaS companies selling globally need to know which rail to support in each market.

| Country / Region | ACH Equivalent | Settlement | Use Case |
| --- | --- | --- | --- |
| European Union | SEPA Direct Debit | 1-2 business days | EU consumer and B2B recurring billing |
| United Kingdom | BACS Direct Debit | 3 business days | UK consumer and B2B recurring billing |
| Canada | PAD (Pre-Authorized Debit) | 1-3 business days | Canadian recurring billing |
| Australia | BECS Direct Debit | 2-3 business days | Australian recurring billing |
| India | NACH (National Automated Clearing House) | 1-2 business days | Indian recurring billing |
| Brazil | Pix Recorrente | Real-time | Brazilian consumer billing |
| Mexico | SPEI | Real-time | Mexican consumer and B2B |

Each has different authorization rules, return code taxonomies, and integration requirements. For SaaS companies selling in multiple markets, supporting these natively is operationally heavy. An MoR like [Dodo Payments](https://dodopayments.com/blogs/best-merchant-of-record-platforms) abstracts the differences and presents a unified API.

## FAQ

### Is EFT the same as ACH?

No. EFT is the umbrella term for any electronic funds transfer, including ACH, wires, real-time payments, and card transactions. ACH is one specific type of EFT that runs on the US Automated Clearing House network and settles in batches over 1-3 business days. When someone says EFT, ask which specific rail they mean.

### Can I reverse a wire transfer?

In practice, no. Wires are designed to be final once settled. The only way to recover funds from a wire is to convince the recipient to send them back voluntarily, or to involve law enforcement if the wire was sent as part of a fraud. There is no bank-level dispute process for wires equivalent to card chargebacks or ACH returns.

### What is the fastest way to send money between banks?

Real-time payment networks like RTP and FedNow are the fastest, settling within seconds and operating 24/7. Wires settle within hours during business hours. ACH takes 1-3 business days for standard or hours for Same Day ACH. For instant cross-border transfers, options are limited - most international transfers still go through SWIFT and take 1-5 business days.

### Why are wire fees so much higher than ACH fees?

Wires are processed individually in real-time, which requires the bank to verify funds availability, transmit a message through Fedwire or SWIFT, and confirm settlement, all within minutes. ACH batches dozens or hundreds of transactions together and processes them as a group on a delayed schedule, which costs the bank far less per transaction. The fee difference reflects the underlying cost difference of the two processing models.

### Which payment rail is best for SaaS recurring billing?

For US customers, ACH debit is the lowest-cost rail for recurring SaaS billing, especially at average transaction sizes above $50/month. For consumer SaaS with small ticket sizes, cards remain the default because of frictionless checkout. For international customers, the equivalent local rail (SEPA, BACS, PAD, etc.) is usually the right choice. For SaaS selling digital products globally, a Merchant of Record like Dodo Payments covers the international payment-method mix (cards, digital wallets, BNPL, UPI, Pix, iDEAL, and 30+ other local methods across 220+ countries) through a single integration with global tax compliance included, though ACH and SEPA Direct Debit are not currently in that set.

## Conclusion

EFT, ACH, and wire transfers solve different problems. EFT is a category. ACH is a cheap, slow, batch-based rail that is ideal for recurring SaaS billing. Wires are expensive, fast, individually processed transfers that fit large one-time B2B payments. Real-time networks are filling the gap between the two for instant payouts and urgent business payments.

For SaaS founders, the smart pattern is to use each rail for what it does best - ACH for US recurring revenue, wires for enterprise upfront payments, RTP/FedNow for payouts, and cards for self-serve checkout. For SaaS selling digital products globally and wanting consolidated card, wallet, BNPL, and 30+ local-method coverage with tax and chargeback compliance bundled in, [Dodo Payments](https://dodopayments.com) operates as a Merchant of Record. ACH and SEPA Direct Debit are not in the Dodo Payments supported method set today, so US-domestic ACH and EU SEPA workflows still require Stripe, GoCardless, or a similar specialist processor.

Compare Dodo's supported payment methods and fees on the [pricing page](https://dodopayments.com/pricing), or read the [ACH payments guide](https://dodopayments.com/blogs/what-is-ach-payment-saas-guide) for a deeper look at the most common US recurring-billing rail.
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