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Are you researching how to send money from the US to the UK via remittance? During your search, you may have come across the term “BACS.” This BACS transfer guide first clarifies a key misconception.
Important Note: You cannot directly use the BACS system to send money from the US to the UK.
BACS is a UK domestic electronic payment system, similar to the ACH network in the US. It handles transfers within the UK only. Therefore, you need to understand other channels truly suitable for cross-border remittances to complete transfers efficiently and economically.
To fully understand why BACS isn’t suitable for cross-border remittances, you need to learn about the UK’s domestic banking system. This section of the BACS transfer guide will dive into the UK’s two major transfer networks and reveal the true channels for international remittances.
BACS is the UK’s primary system for automated payments. It has two types:
| Feature | BACS Direct Credit | Direct Debit | 
|---|---|---|
| Purpose | Paying funds to you | Collecting funds from your account | 
| Initiator | Companies or institutions | Companies or institutions (with your authorization) | 
| Typical Use | Salaries, pensions, benefits | Utility bills, subscriptions, membership fees | 
| Payment Direction | Push payment (money “pushed” to you) | Pull payment (money “pulled” from you) | 
Besides BACS, the UK has another system called CHAPS. The table below outlines their core differences:
| Feature | BACS | CHAPS | 
|---|---|---|
| Processing Time | Up to 3 business days | Same-day delivery | 
| Transaction Value | Typically for small to medium batch payments | No upper limit, often for large transactions | 
In short, BACS handles routine, non-urgent batch transfers, while CHAPS manages high-value, time-sensitive transfers. Together, they form the backbone of the UK’s domestic payment network.
When sending money from the US to the UK, your funds don’t enter the BACS or CHAPS systems. They travel through a global network called SWIFT.
The SWIFT network is like an international flight system. If your bank and the recipient’s bank lack a “direct flight,” funds must pass through one or more “transfer airports,” or correspondent banks, to reach their destination.
This process relies on SWIFT codes (also called BIC codes). Each bank has a unique code to identify itself in the network. A SWIFT code typically consists of 8 or 11 characters, including bank, country, region, and branch information. For example, a primary SWIFT code for HSBC in the UK is HBUKGB4BXXX. Providing the correct SWIFT code is critical to ensuring your funds arrive accurately. This section of the BACS transfer guide aims to clarify that international remittances rely on an entirely different set of rules and systems.

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Now that you know international remittances don’t use BACS, what are your options for sending money from the US to the UK? You have three main channels: traditional banks, online remittance platforms, and PayPal. Each has unique pros and cons, and understanding them helps you make the wisest decision.
Sending money via your US bank (e.g., Bank of America, Chase) to a UK bank account is the most traditional method, relying on the SWIFT network mentioned earlier.
Its main advantage is security and the ability to handle large amounts. For transfers of tens or hundreds of thousands of dollars, banks remain a trusted choice for many.
However, for most personal remittances, banks have clear drawbacks:
High Fees: Banks typically charge a fixed outgoing fee, usually between $35 and $50.
| Bank Name | International Outgoing Fee (Online) | 
|---|---|
| Bank of America | $45 | 
| Chase | $40 | 
| Wells Fargo | $40 | 
Poor Rates: Banks’ exchange rates often include a 2%-4% markup, a hidden cost meaning you get fewer pounds compared to the real market rate.
Slow Delivery: Due to the SWIFT network and possible intermediaries, a wire transfer may take 3 to 5 business days, sometimes up to 10 days.
When to Consider Bank Wires? For one-time, high-value (e.g., over $50,000) transactions with stringent security needs, the reliability of bank wires may justify the extra cost. For other cases, they’re typically not the most cost-effective choice.
In recent years, fintech companies have transformed international remittances. Platforms like Wise, Revolut, and Remitly are designed to address traditional banks’ pain points.
Their core advantages include:
Let’s look at key platforms:
For clarity, here’s a summary:
| Platform | Core Advantage | Exchange Rate | Speed | 
|---|---|---|---|
| Wise | Highly transparent, best rates | Mid-market rate | Very fast, up to minutes | 
| Revolut | Multi-functional account, free quota for members | Near mid-market rate (conditional) | 3-5 business days | 
| Remitly | Flexible speed options, new user promotions | Rates with markup, varying options | Minutes (Express) or 3-5 days (Economy) | 
You might first consider PayPal for remittances due to its popularity and convenience. However, convenience comes at a high cost.
PayPal’s fee structure is complex, with costs from two sources:
Example: Suppose you send $1,000 from the US to the UK.
- Real Rate: You might pay ~$10 in fees, with the recipient getting ~£741.
 - Via PayPal: Even with a $4.99 fee, the poor rate means the recipient may get only ~£713.
 In this case, the rate difference costs you nearly £28.
In summary, unless for very small payments, PayPal is one of the costliest international transfer channels due to its rate losses outweighing convenience.

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After choosing a channel, you need to scrutinize its fees and expected timelines. Understanding these saves real money and ensures timely delivery.
Your total remittance cost typically comprises three parts. Understanding them prevents you from overpaying hidden fees.
Quick Math: For a $5,000 transfer, a 3% markup costs you $150. Formula:
Total Cost = Fixed Fee + (Transfer Amount * Rate Markup).
Transfer speed ranges from minutes to weeks, influenced by:
Major US Banks’ International Wire Cut-Off Times (ET):
- Chase: 5:00 p.m.
 - Bank of America: 5:00 p.m.
 - Wells Fargo: 6:00 p.m. (converted)
 
Now that you understand the channels, it’s time for action. The process is simpler than you think. With the right information, you can set it up in minutes.
To ensure funds arrive accurately, gather these key details from the recipient in advance:
Key UK Account Details: For UK accounts, you need two core numbers:
- Sort Code: A 6-digit number, typically formatted as
 XX-XX-XX.- Account Number: An 8-digit number.
 Many modern platforms can auto-generate an IBAN from these. IBAN is a unique code for identifying global bank accounts, mandatory for international payments to the UK.
Having these details ready speeds up the process and prevents failures or delays due to errors.
Using platforms like Wise is very fast. Here’s a typical process using Wise as an example:
This BACS transfer guide’s core conclusion is clear: you cannot use BACS for cross-border remittances from the US to the UK. You must choose between bank wires and online platforms based on fees, speed, and convenience. For most personal remittances, online platforms are the top choice for low costs and efficiency.
Action Tip 💡 Before transferring, use online comparison tools to compare fees and rates in real-time. Many offer rate alert functions to help you seize the best timing for the wisest decision.
You cannot directly use BACS from the US to the UK. BACS is a UK domestic payment system for local transfers only. Use bank wires or online platforms for international remittances.
You primarily need the recipient’s Sort Code and Account Number. Many modern platforms auto-generate an IBAN from these. Providing an IBAN ensures smoother transfers.
For most personal remittances, platforms like Wise are typically the cheapest, offering near mid-market rates and transparent fees. Traditional banks and PayPal are costlier due to rate markups and high fees.
“Fast” or “instant” options on platforms like Wise or Remitly are typically the fastest, delivering in minutes. Traditional bank SWIFT wires take 3-5 business days, sometimes longer.
*This article is provided for general information purposes and does not constitute legal, tax or other professional advice from BiyaPay or its subsidiaries and its affiliates, and it is not intended as a substitute for obtaining advice from a financial advisor or any other professional.
We make no representations, warranties or warranties, express or implied, as to the accuracy, completeness or timeliness of the contents of this publication.



