Table of contents
The main invoice payment methods for UK small businesses are manual bank transfer, a Pay by Bank payment link, a card payment link and Direct Debit. The right method depends on how often you bill the customer, the size of the invoice, the customer’s location, the fees you are prepared to pay and the way you reconcile payments.
A clear invoice and a simple payment route work together. Give the customer the information they need, make the next step obvious and keep a reliable reference from invoice to bank receipt.
Compare four invoice payment methods
| Method | Best suited to | What the customer does | Operational point |
|---|---|---|---|
| Manual bank transfer | Known UK customers and straightforward B2B invoices | Copies your account details, enters the amount and adds a reference | Low setup effort, with more scope for typing errors and missing references |
| Pay by Bank link | One-off UK invoices where you want a prepared bank payment journey | Selects their bank, authenticates with it and authorises the prepared payment | Can carry the amount and reference from your payment request |
| Card payment link | Customers who prefer cards, including some international payers | Opens a link and enters card details | Check provider fees, card acceptance, payout timing and reporting |
| Direct Debit | Regular or occasional collections from customers who have given an instruction | Sets up an instruction that permits agreed collections | Requires a Direct Debit process, advance notice³ and suitable collection records |
1. Manual bank transfer
Manual bank transfer is familiar and easy to offer. Put your business name, sort code, account number and a clear payment reference on the invoice. The customer creates the payment in their banking app or online banking.
This can work well when you know the customer and send a modest number of invoices. The administrative cost appears when customers mistype details, change the reference or pay several invoices together. Someone then has to identify the receipt and match it to the right account.
Use a short, unique invoice number as the requested reference. Avoid references that are identical across several invoices. Your accounting process should also allow for truncated or altered references.
2. Pay by Bank payment link
A payment link gives the customer a direct route from the invoice or reminder to a prepared payment request. With Pay by Bank, the customer selects a supported bank, authenticates with that bank and authorises the payment there.
This reduces the amount of information the customer has to copy. The amount, payee information and reference can travel with the request, depending on the provider and integration. It is useful for one-off UK invoices where accurate references and a short customer journey matter.
Keep each payment stage clear in your records. Creating a request does not move money. Successful authentication confirms access to the bank journey. Bank authorisation confirms that the payer approved the payment. A status notification describes the provider’s view of the payment. Funds availability and reconciliation need their own checks.
Wonderful currently offers one-off Pay by Bank payment links for UK businesses.¹ Check the live plans and pricing and the current supported banks before choosing a setup.² The supported-banks page separates banks that can receive funds from banks customers can use to send payments.
3. Card payment link
A card payment link can be useful when customers expect to pay by card or when your payer is outside the UK. The customer opens a hosted payment page and enters their card details.
Compare the full commercial and operational terms. Look at transaction fees, any fixed fee, supported card types, international charges, payout timing, failed-payment handling and the information included in exports or accounting integrations. Your payment provider’s confirmation and the payout into your bank account are separate records.
If card acceptance matters only for a small group of customers, decide whether it should be your default invoice method or an alternative offered on request. A consistent default makes payment instructions easier for staff and customers to follow.
4. Direct Debit
Direct Debit suits regular collections and some occasional payments where the customer has authorised your organisation to collect agreed amounts. Bacs explains that the customer’s instruction authorises collections when advance notice of the amount and date has been provided.³
It can suit retainers, maintenance agreements and repeat services with an ongoing customer relationship. It adds setup, notice and collection requirements, so assess the provider’s process and your own ability to maintain the mandate and collection records. It is a different payment journey from sending a one-off bank payment request with every invoice.
Start with a complete invoice
Your payment method cannot fix an unclear invoice. GOV.UK’s current invoice requirements include a unique identification number, supplier and customer details, a description of what is being charged, the supply and invoice dates, individual amounts, VAT where applicable and the total owed.⁴
Also state the payment date or agreed payment terms and explain exactly how to pay. According to the current GOV.UK payment obligations guidance, businesses can set their own payment terms. When no payment date has been agreed, the customer must usually pay within 30 days of receiving the invoice or the goods or service, whichever is later.⁵
For VAT invoices, follow the additional VAT invoice rules that apply to your business. If you invoice overseas customers, confirm the currency, payment route, bank charges and tax treatment before sending the invoice.
Choose the method by the job
One-off professional service
A manual transfer or Pay by Bank link can both fit a UK service invoice. Choose the link when carrying the amount and reference into the payment journey would reduce administration. Keep bank details available through a controlled process if some customers require manual transfer.
Regular work for the same customer
Direct Debit may fit a stable collection agreement. A separate payment request for each invoice can still be appropriate when the amount needs active customer approval every time. Consider the contract, notice requirements and the customer’s purchasing process.
High-value invoice
Check provider transaction limits, the customer’s bank limits, fees and your internal approval process. A customer may need to raise a bank limit or arrange payment through its finance team. Give them enough time and a named contact for payment questions.
International customer
Confirm whether the payment method supports the customer’s country, bank, currency and preferred payment type. Include who bears any transfer or conversion charge. Card links and international bank transfers have different cost and settlement arrangements, so use current provider terms for the countries you serve.
Keep the payment stages clear
- Invoice: you issue the amount owed, due date, reference and payment instructions.
- Payment request: you create or send the route the customer will use, such as bank details or a payment link.
- Authentication: the customer proves access through the relevant bank or payment provider.
- Authorisation: the customer approves the payment or collection instruction.
- Initiation: the payment instruction is submitted into the relevant payment route.
- Status: your provider or system reports what it knows about the payment.
- Funds availability: the receiving account shows funds that your business can use.
- Reconciliation: you match the receipt to the invoice and update the customer account.
A status message can help automate the next step, but it should have a defined meaning in your system. Decide which status releases goods, starts work or closes an invoice. Document how exceptions are handled when a status and bank receipt do not yet align.
Use references that make reconciliation easier
A reliable invoice reference connects the invoice, payment request, provider record, bank receipt and accounting entry. Use one identifier consistently and preserve it in exports or integrations.
For manual transfers, customers can change the reference. Payment requests can reduce that risk by preparing the payment information. Your process still needs an exception queue for combined payments, part payments, overpayments and receipts with missing references.
Our guide to payment reconciliation for small businesses covers the matching process in more detail. If you are still choosing the wider setup, compare the main types of small-business payment system. You can also see how a Pay by Bank payment moves through each stage.
Invoice payment checklist
- Give every invoice a unique number and clear due date.
- Use a payment method the customer can access.
- State the amount, currency and payment instructions once, in one clear section.
- Carry a consistent reference into the payment and accounting records.
- Define what each payment status means for your team.
- Confirm funds availability through the receiving account or your verified process.
- Match the receipt to the invoice before closing the customer balance.
- Keep a route for exceptions and customer questions.
Frequently asked questions
What is the easiest way for a small business to accept invoice payments?
Manual bank transfer has the lowest setup effort. A Pay by Bank or card link can remove copying from the customer journey and carry more payment information into your records. The easiest overall setup is the one your customers can use and your team can reconcile reliably.
Should I put bank details on every invoice?
Include clear bank details when manual transfer is an accepted method. Keep those details controlled and consistent across your invoicing system. If you change bank details, use a verified communication process because unexpected changes can create fraud risk and customer confusion.
Can I offer more than one payment method?
Yes. A primary method with a defined alternative can serve different customer needs. Too many equal choices can add support and reconciliation work, so assign a clear default and explain when the alternative applies.
When should I mark an invoice as paid?
Use a documented rule based on evidence you have verified. Keep provider status, funds availability and accounting reconciliation as separate fields where possible. This makes exceptions visible and prevents an early status message from closing the invoice without the required financial record.
Make the next step clear
Choose one primary payment route for each invoice type. Put it beside the amount and due date, use a reference that survives the journey and define how your team confirms and reconciles the receipt. Customers get a shorter path to payment and your records stay easier to manage.
Footnotes
- Wonderful, current plans and one-off Pay by Bank payment-link features, accessed 19 August 2026. Plans and pricing.
- Wonderful, current receiving-bank and sending-bank coverage, accessed 19 August 2026. Supported banks.
- Bacs, Direct Debit definition and advance-notice requirement, accessed 19 August 2026. Direct Debit.
- GOV.UK, information that invoices must include, accessed 19 August 2026. Invoices: what they must include.
- GOV.UK, payment terms and the statutory 30-day position where no payment date is agreed, accessed 19 August 2026. Payment obligations.
