How to Choose a Cost-Effective Payment System to Accept Online Payments?  

Accepting payments online is essential for most UK businesses today, but not all payment methods cost the same. Between card fees, gateway charges, and settlement delays, your choice of provider can have a major impact on profit margins. Comparing payment processing services properly is the first step to keeping more of what you earn. Here’s a clear breakdown of the most cost-effective ways to get paid online.

1. Why payment costs vary

Every online transaction typically involves several layers of fees:

• Card network fees (Visa, Mastercard, Amex) — often 1.4–2.9% + 20–30p per transaction
  
• Payment gateway or platform fees — charged by Stripe, PayPal, or Shopify Payments
  
• Settlement delays or rolling reserves — funds held for 1–3 days, limiting cash flow
  
• Chargeback risk — disputed payments that can cost additional admin and penalties
  

Just a 0.5% difference in cost, for instance, can add up to thousands per year for an active merchant.

2. Comparing the main payment methods

Here’s how the most common payment methods, including cards, bank transfers, Direct Debit, and BNPL, compare on cost and speed.

Method	Typical Fee (UK)	Settlement Time	Pros	Cons
Pay by Bank / Instant Bank Transfer	0.5–0.8%	Instant	Low fees, no cards, no chargebacks	Requires customer to bank with UK institutions
Debit & Credit Cards	1.4–2.9% + 20–30p	1–3 business days	Familiar and widely accepted	High fees, chargebacks possible
Manual Bank Transfers	£0	1–2 business days	No processing fees	Manual reconciliation, prone to errors
Direct Debit	1–2%	3–5 business days	Good for recurring payments	Slow, no instant confirmation
Buy Now, Pay Later (BNPL)	2–6%	1–3 business days	Increases conversion for consumers	Expensive and higher admin costs

3. How to reduce your payment processing costs

There are several ways to save, even if you keep your existing setup.

Encourage cheaper payment options
Promote Pay by Bank or debit payments over credit cards to reduce per-transaction fees. If you also take in-person payments, choose card readers with competitive rates too.

Negotiate with providers
If you process high volumes, ask for a rate review. Many acquirers will lower pricing for consistent merchants. Look for providers offering transparent pricing so you know exactly what you’re paying

Automate reconciliation
Manual reconciliation wastes time and introduces errors. Integrating payments with software like Xero or QuickBooks can cut admin costs and streamline business operations.

Minimise chargebacks
Use clear product descriptions and reliable refund policies to avoid disputes that drive hidden costs.

Consolidate providers

Multiple gateways create extra monthly fees, added complexity, and multiple customer support teams to deal with. Therefore, one platform that handles all payment types is often cheaper overall.

4. Why Pay by Bank is emerging as the lowest-cost option

Pay by Bank uses secure open-banking rails, securely transmitting funds directly from a customer’s bank to yours. There are no cards, acquirers, or interchange fees involved, and no sensitive payment information changes hands.

For businesses, this means a better customer experience alongside real savings:

• Up to 50% lower fees than card payments
  
• Instant settlement for better cash flow
  
• Zero chargebacks (or almost zero)
  
• Simple reconciliation when integrated with accounting tools
  

Providers such as Atoa make Pay by Bank easy to add to checkouts, invoices, or payment links with no disruption to your existing setup.

5. Example: small changes, big savings

A retailer processing £40,000 per month at an average 2% card fee spends around £800 in fees. However, if half of that volume moves to Pay by Bank at 0.7%, total monthly costs drop to around £540, saving over £3,000 per year while improving cash flow.

6. Summary: low-cost payment mix

Recommended Setup	Why it Works
Pay by Bank as the default option	Lowest cost, instant settlement
Cards as a secondary method	Familiar and flexible for customers
Integrated accounting reconciliation	Reduces manual admin costs

For most UK businesses, combining Pay by Bank with card payments delivers the best balance of cost, convenience, and customer trust, while still catering to different customer preferences.

Next step

Find out how much your business could save with Atoa’s Pay by Bank solution.
Request a demo of Atoa today.