What is direct debit?
Direct debit is a pull payment. Once a customer signs a mandate, you instruct their bank to take an agreed amount on an agreed date, without them doing anything each time.
It runs on the Bacs scheme, which is why collections take three working days to clear, and it's covered by the Direct Debit Guarantee that lets customers claim an immediate refund from their bank.
For recurring revenue it's the most reliable collection method in the UK — failure rates are a fraction of those on cards, because there's no expiry date and no card to replace.
How does it work?
The customer completes an online mandate with their name, sort code and account number. The provider lodges it with their bank, which takes a few working days.
You then submit collections through the provider. Bacs works to a three-day cycle: submission, processing, then funds credited to you. Most providers pay out one to two days after that.
Here's a fictional example:
Meet Clearwater Cleaning
Clearwater invoices 90 commercial clients £340 a month on 14-day terms. On average, 25 of those invoices were paid late every month.
They moved billing to direct debit at 1% capped at £2 per collection — about £180 a month across the book.
Collections now land on the 5th of each month automatically. Late payments dropped from 25 to two or three, and the office manager stopped spending Friday mornings chasing.
The predictable inflow also let them commit to a second van six months earlier than planned.
What are the different ways to run direct debit?
Through a Bacs bureau or facilities provider
The common route for small and medium businesses. The provider holds the Bacs Service User Number and handles the compliance, so you just set up mandates and submit collections.
Costs are typically 1% capped at £2 to £4 per collection, sometimes with a small monthly fee.
Your own Service User Number
Larger organisations apply to their bank for their own SUN, which means collections appear under your name and per-transaction costs fall to pennies.
The trade-off is a demanding approval process, indemnity requirements and full responsibility for scheme compliance.
Open banking variable recurring payments
A newer alternative where the customer authorises recurring pulls from within their banking app, settling instantly via Faster Payments rather than over three days.
Cheaper and faster, but coverage across UK banks is still building, so most businesses run it alongside direct debit rather than instead.
Is direct debit right for my business?
Direct debit suits predictable, repeated billing relationships:
- 1
Subscriptions and memberships
Gyms, clubs, software and service plans, where the same amount leaves on the same date each month.
- 2
Service businesses on contract
Cleaning, maintenance, IT support and similar retainers billed monthly to business customers.
- 3
Instalment and payment plans
Spreading a larger invoice or annual fee over several months without carrying the chasing burden.
What do you need to set up direct debit?
Whether you use a provider or your own SUN, expect to supply:
A UK business bank account: Collections settle to an account in the business name, and providers verify ownership before activating you.
Business verification: Companies House details, directors' ID and proof of address, plus a description of what customers are being billed for.
Compliant mandate wording: The Direct Debit Guarantee must be shown on the sign-up page and on advance notice sent to customers.
Advance notice process: Customers must be told the amount and date, usually at least three working days before the first collection and before any change.
Expected collection volumes: Value and frequency, which determine pricing and whether the provider applies a rolling reserve.
How to compare direct debit providers
Three things separate providers once you look past the headline percentage:
- 1
Fee structure and the cap
Almost everyone quotes around 1%, but the cap is what decides your bill. A £2 cap versus a £4 cap on 500 collections of £400 is a £1,000 a month difference. Also check failed-collection and re-presentation charges.
- 2
Mandate setup and failure handling
Look for online mandate sign-up with instant bank validation, automatic re-presentation of failed collections, and clear reporting of ARUDD and ADDACS messages from the banks.
- 3
Integrations and reputation
Connections to Xero, QuickBooks and your billing platform remove reconciliation work entirely. Check reviews for payout reliability and how quickly support responds when a collection file fails.
Benefits and drawbacks of direct debit
Pros
- Very low failure rates compared with cards
- Predictable cashflow on known dates
- Low, capped cost on larger payments
- No expiry dates or card replacements
Cons
- Three-day Bacs cycle, so not instant
- Customers can reclaim under the Guarantee
- Mandate setup takes a few working days
- Strict advance notice rules to follow
Why choose direct debit over recurring card payments?
Cards fail roughly 5% to 10% of the time each month through expiry, replacement and insufficient funds. Direct debit failure rates are usually well under 2%.
On value, the difference is stark: a £400 collection costs around £2 by direct debit and around £7 on a card at 1.7%. Over a year and a few hundred customers, that's a serious number.
Cards still win on speed and on one-off purchases. The usual answer is direct debit for recurring billing and cards for everything else.
What if a collection fails or is disputed?
Failed collections come back with a reason code — most often insufficient funds. Good providers re-present automatically a few working days later and notify the customer.
Under the Direct Debit Guarantee a customer can claim an immediate refund from their bank for an incorrect collection, and the money is taken back from you. Clear advance notice is your protection.
Cancelled mandates arrive as ADDACS messages. Make sure your billing system acts on them, because collecting against a cancelled mandate causes indemnity claims and scheme complaints.
What are the alternatives to direct debit?
If direct debit doesn't suit your billing pattern:
Recurring card payments
Faster to set up and instantly authorised, but more expensive on higher amounts and far more likely to fail over time.
Standing orders
The customer controls the payment, which is free but inflexible — you can't change the amount, and you won't know when they stop.
Open banking recurring payments
Instant settlement and low flat fees, with customer control in the banking app. Bank coverage is still growing, so check your customer base.
FAQs
About this guide
Written and reviewed by the Grow Your Business team, and kept up to date as rates, rules and provider terms change.
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