Last updated: February 2025

Chargebacks aren't just a customer service headache — they're a serious threat to accurate cash flow forecasting. Here's what Shopify CFOs need to know, and how Pay by Bank eliminates the problem entirely.

If you're a CFO at a Shopify business, you already know that cash flow forecasting is one of the hardest things to get right. Revenue timing, settlement cycles, platform fees — there are enough variables to manage without one more unpredictable cost sitting inside every card transaction you process.

That cost is chargebacks. And most finance teams are significantly underestimating their real impact.

What Is a Chargeback — and Why Should CFOs Care?

A chargeback occurs when a customer disputes a transaction directly with their bank or card issuer. If the dispute is upheld, the funds are forcibly reversed out of your merchant account — sometimes weeks or months after the original payment cleared.

From an operational standpoint, that's frustrating. From a forecasting standpoint, it's a serious problem.

Every chargeback introduces a retroactive adjustment to revenue you've already recognised, planned around, and possibly already spent. It's not just the money — it's the knock-on effect on every model that depended on that revenue being real and final.

The True Cost of a Chargeback

The most visible cost of a chargeback is the transaction amount being reversed. But that's just the start. The full picture is considerably worse:

The direct fee.

Most payment processors charge a non-refundable dispute fee per chargeback — typically in the range of £15 to £30. You pay this regardless of whether the dispute is resolved in your favour.

The lost transaction value.

If the chargeback is upheld, the original sale amount is clawed back in full. You've already fulfilled the order. The goods are gone, or the service has been delivered. The revenue isn't coming back.

The admin burden.

Contesting a chargeback requires documentation, coordination across finance, customer support, and operations — and significant time from people whose hours are better spent elsewhere. Win rates for merchants are inconsistent and the process is genuinely draining.

Settlement freezes and delayed payouts.

Processors can hold settlements pending dispute resolution. For a business forecasting short-term runway or managing a growth campaign, unexpected payout delays create real planning risk.

The compounding forecasting error.

This is the cost that gets talked about least but matters most for CFOs. Chargebacks don't just affect the transactions they touch — they introduce systematic uncertainty into your revenue models. If 1% of your transactions might reverse at any point in the next 90 days, your revenue forecasts are structurally unreliable. That affects investment decisions, hiring plans, and anything else you're modelling from the top line down.

At high volume, even a modest chargeback rate compounds fast. A Shopify store processing £2 million annually at a 1% chargeback rate is looking at £20,000 in reversed transactions — before fees, admin time, or the downstream planning costs are even considered.

Why Card Payments Are Structurally Vulnerable

Credit and debit cards weren't designed with ecommerce in mind. The chargeback mechanism was built to protect consumers — and it does that reasonably well — but it does so by placing the financial and administrative burden squarely on merchants.

The result is a payment ecosystem where Shopify businesses are perpetually exposed to:

Friendly fraud.

A customer makes a legitimate purchase, receives the goods or service, and then disputes the transaction anyway. The merchant bears the burden of proof. Outcomes are unpredictable even when the evidence is strong.

Refund abuse.

Customers exploit the dispute mechanism as an alternative to your returns process — often because it's faster and easier for them.

Vague dispute categories.

Unclear billing descriptors, subscription timing, and shipping delays all generate disputes that are difficult to contest convincingly, even when you've done nothing wrong.

Stripe, PayPal, and Shopify Payments all have dispute management tools. But none of them fundamentally change the dynamic: when a customer files a chargeback, the merchant is on the back foot from the start.

The Structural Fix: Pay by Bank

Pay by Bank — powered by open banking — works on a fundamentally different model.

Instead of a card issuer acting as an intermediary who can reverse a payment after the fact, Pay by Bank is a

push payment

. The customer actively authorises the transfer directly from their bank account to yours. The money moves. The transaction is final.

There is no chargeback mechanism in open banking. Once a Pay by Bank payment is authorised, it cannot be reversed by a third party. The payment is permanent from the moment it clears.

For a Shopify CFO, that changes the forecasting equation entirely:

• Every confirmed payment is genuinely confirmed — no retroactive reversals

• Settlement is real-time, not subject to processor holdbacks

• Revenue recognised is revenue you can plan around with confidence

• Dispute-related admin disappears from your team's workload

This isn't a marginal improvement on card payments. It's a different category of financial reliability.

What Fena Brings to Shopify Finance Teams

Fena's Pay by Bank solution is built specifically for the kind of clarity that finance teams actually need. Here's what that looks like in practice:

Instant, irreversible settlement.

Payments land in your account in real time and stay there. No holds, no reversals, no processor-initiated delays.

Zero chargeback liability.

The open banking framework means the chargeback mechanism doesn't apply. Your revenue is your revenue.

Real-time reconciliation.

Fena gives you a clean, real-time view of payment inflows — making it straightforward to reconcile, report, and forecast without the noise of disputed transactions clouding the picture.

FCA-regulated and bank-grade secure.

Fena operates within the UK's open banking regulatory framework. Every payment is authenticated through the customer's own bank, using encryption and security protocols that meet the same standards their bank already applies.

For CFOs who have spent time managing the fallout from chargebacks — the fee reconciliation, the payout delays, the forecast revisions — the shift to Pay by Bank removes an entire category of financial risk.

Frequently Asked Questions

What is a chargeback?

A chargeback is a forced reversal of a card payment, initiated by the customer through their card issuer. The funds are pulled back from the merchant's account, often weeks after the original transaction — regardless of whether the purchase was legitimate.

How do chargebacks affect cash flow forecasting?

They introduce retroactive revenue reversals that distort models built on confirmed payments. At scale, even a modest chargeback rate creates systematic uncertainty across forecasts — affecting runway calculations, ROI modelling, and investment planning.

Can Pay by Bank payments be charged back?

No. Pay by Bank uses push payment technology via open banking APIs. Once a payment is authorised by the customer, it's final. There is no mechanism for a third party to reverse it.

How common are chargebacks in Shopify ecommerce?

Chargeback rates in ecommerce typically range from 0.5% to 1.5%, depending on the industry and product category. At high transaction volumes, even the lower end of that range represents meaningful revenue exposure and significant operational overhead.

Is Pay by Bank secure enough for high-value transactions?

Yes. Fena is FCA-regulated and uses bank-level authentication protocols. Customers authorise payments directly through their own banking app, using the same security infrastructure their bank already applies to all transactions.

The Bottom Line for Shopify CFOs

Chargebacks are not a minor operational nuisance. They are a structural flaw in card-based payment models that directly undermines your ability to forecast, plan, and operate with confidence.

The solution isn't better dispute management or faster response times. It's removing the chargeback mechanism from your payment stack entirely.

Pay by Bank via Fena does exactly that — delivering the kind of payment permanence and real-time visibility that lets finance teams build forecasts they can actually trust.