Faster Payments moves money in close to real time, around the clock, up to £1m per payment. Bacs runs on a three day cycle and carries Direct Debit and Direct Credit, so it's what you use to pull money from a customer's account or pay a batch of people on a set date. One is immediate and pushed by the payer, the other is scheduled and initiated by you.
The short version
- Faster Payments "facilitates real-time payments of up to £1m" and is "available day and night, 365 days per year" (Pay.UK).
- Bacs takes "less than three days from start to finish", with named Input, Processing and Entry days.
- Faster Payments is pushed by your customer. Bacs Direct Debit is pulled by you against a mandate.
- Once sent, a Faster Payment can't be cancelled. A Bacs submission can be recalled before the cut off.
- Your bank may cap Faster Payments well below £1m, and published limits range from £5,000 upwards.
- No Pay.UK page compares the two, so the comparison below is ours, built from two separate sources.
Where this comparison comes from
Both systems are run by Pay.UK, and each has its own published description. Neither of them describes the other. Pay.UK's Bacs page covers what Bacs is, its Faster Payments page covers speed and limits, and no page we could find sets them side by side.
So the table below is our comparison and not a scheme statement, assembled from two sources: Pay.UK for the Faster Payments figures, and bacs.co.uk for the timing of the Bacs cycle. Where you see a quotation, it belongs to whichever of those two published it, and the judgements about which system suits which job are ours.
The two systems side by side
| Question | Faster Payments | Bacs |
|---|---|---|
| How fast | Real-time, "available day and night, 365 days per year" | "less than three days from start to finish" |
| Who starts it | The payer, from their bank or app | The collecting organisation, or the payer's own bank for Direct Credit |
| Maximum value | "up to £1m", subject to your bank's own limit | No scheme maximum published on the pages fetched |
| Can it be stopped | No. "once sent Faster Payments cannot be cancelled" | Yes, recall is possible before a specified cut off |
| What it carries | One-off pushed payments | Direct Debit and Direct Credit |
| Scheduling | Immediate | Submission accepted up to 30 days ahead of the payment date |
What Faster Payments does
Faster Payments has run since 2008 and now handles the everyday push payment: your customer opens their banking app, pays your invoice, and the money is with you in seconds. Pay.UK describes it as facilitating "real-time payments of up to £1m", available "day and night, 365 days per year", and puts 2025 volumes at 5.55 billion transactions worth £4.84 trillion.
The £1m ceiling needs two caveats in front of it. Pay.UK states that "it is now possible to send individual payments of up to £1 million using the Faster Payments System", but adds that "those organisations offering the service can set their own limits", with individual bank limits running from £5,000 to £1,000,000. So the scheme ceiling and your ceiling are different numbers, and yours is whatever your bank sets.
The word "now" in that quotation refers to an increase, and we couldn't verify the date it took effect from any source we could fetch. If the timing matters to a contract or a policy you're writing, check it with your own bank instead of taking a date from an article.
The other property that shapes how you use it is finality. Pay.UK is direct about this: "due to their real-time nature, once sent Faster Payments cannot be cancelled." A customer who pays the wrong account has no reversal right, only the Credit Payment Recovery process, and that depends on the person who received the money agreeing to return it.
What Bacs does
Pay.UK describes Bacs as "an electronic transfer service used to make payments between accounts", carrying Direct Debit and Direct Credit. Direct Debit is what you use to collect from customers who've signed a mandate. Direct Credit is the one your bank uses to pay salaries and supplier runs.
The timing is where Bacs differs most, and the description on bacs.co.uk is unusually clear: "the entire process is simple and efficient, and it takes less than three days from start to finish." The three days are named. Input is day one, when you submit your file, and files have to reach Bacs between 07.00 and 22.30. Processing is day two, when files "reach recipient banks for individual payment processing". Entry is day three, when "payments are simultaneously debited from the recipients' accounts and credited to your account".
Two features of that cycle earn their keep. You can submit instructions up to 30 days ahead of the payment date, so a collection can be queued long before it's due. And you can recall a payment after submission, provided your bank is told before a specified cut off, and that gives you a window Faster Payments never offers.
The collection model you're choosing
For most businesses the choice isn't really between two payment rails, it's between two collection models, and the rail follows from that.
If you want your customer to decide when to pay, you're on Faster Payments, whether they type your details into their banking app or you send them a link and they pay by bank. The money arrives quickly, but you're carrying the risk that they don't get round to it.
If you want the payment to happen without your customer doing anything each month, you're on Bacs Direct Debit. You collect on a schedule, against a mandate they signed once, and the three day cycle applies every time.
That cycle is also why a direct debit can look late in your accounting software when nothing has gone wrong. Collect on the due date, and the money reaches you a couple of days after it, so the invoice shows as overdue in between. Adfin settles direct debit at T+3 and open banking the same day, and the difference in those numbers is the Bacs cycle rather than anything about the customer.
Common questions
Is Bacs the same as a bank transfer? Not in everyday use. When someone says bank transfer they usually mean a Faster Payment pushed from their banking app, which arrives in close to real time. Bacs is the scheme behind Direct Debit and Direct Credit, and it runs on a three day cycle.
How long does a Bacs payment take? Less than three days from start to finish, in the scheme's own words, across named Input, Processing and Entry days. You submit on day one and the money moves on day three.
What is the maximum Faster Payment? The scheme allows individual payments of up to £1 million, but Pay.UK notes that organisations offering the service set their own limits, and published bank limits run from £5,000 to £1,000,000. Check your own bank's cap before relying on the headline figure.
Can a Faster Payment be cancelled? No. Pay.UK states that once sent, Faster Payments cannot be cancelled. The only route for a payment sent in error is the Credit Payment Recovery process, which needs the recipient to co-operate.
Can a Bacs payment be recalled? Yes, within limits. Bacs says you can recall payments after the information has been submitted, provided your bank is notified before a specified cut off time.
Which should I use to collect from customers? For regular billing, Bacs Direct Debit collects on a schedule without your customer having to act. For one-off invoices, or where you want the money today, a payment link over Faster Payments or open banking gets you there faster.
Sources
- Bacs — Direct Debit, getting started (accurate as of August 2026)
This article explains how Bacs and Faster Payments differ for UK businesses and is not financial advice. Scheme limits and timings change, so check current guidance before relying on them. Last updated August 2026.
