SumUp Refer-a-Friend Review: Is the Up-to-£100 Reader Discount Worth It?

SumUp is a payments company aimed at small businesses, sole traders and anyone who needs to take card payments without the cost and paperwork of a traditional merchant account. Its best-known products are compact card readers — the Solo Lite, Solo and Terminal — paired with a free Business app that turns a phone or the reader itself into a till.

The model is deliberately low-commitment: you buy the reader once rather than renting it, there is no monthly fee, and you pay a flat percentage on each transaction. That makes SumUp a common starting point for market traders, pop-ups, cafés, tradespeople and side businesses testing whether they need card acceptance at all.

Signing up as a new business customer through the refer-a-friend link gives you a discount on selected SumUp card readers and POS devices — advertised as up to £100 off. This is the part worth being precise about: it is a discount on hardware, not cash. You cannot withdraw it or apply it to transaction fees; it simply reduces what you pay for a qualifying device at the point of order.

Because SumUp's entry reader, the Solo Lite, is only £25, a discount can cover the whole cost of getting started, or a large chunk of a dearer device like the Solo (£79) or Terminal (£135). But the exact amount and which devices qualify are set by SumUp's current campaign, so treat 'up to £100' as a ceiling and confirm the actual figure on the order page before you pay. If you have no need for a card reader, the discount is worth nothing to you.

The reader is a one-off purchase; the ongoing cost is the transaction fee. SumUp charges 1.69% on each in-person card payment and 2.50% on online payments, with no monthly fee. For a business taking, say, £2,000 a month in card payments, that 1.69% is roughly £34 a month — far more over a year than any one-off reader discount.

That is why the sign-up saving should not be the deciding factor. A £100 discount is a nice start, but the question that matters is whether 1.69% per transaction is competitive for your volume and the kind of payments you take. For low, irregular takings the flat rate and no monthly fee suit SumUp well; for high, steady volume it is worth comparing the percentage against providers that charge a monthly fee but a lower rate.

The discount is for customers who are new to SumUp and sign up through the refer-a-friend link. You create a business account, complete SumUp's identity and account checks, and choose a qualifying device. SumUp may require you to buy directly from SumUp and to complete setup — or a first qualifying payment — before the full benefit applies, so read the conditions shown on the refer-a-friend page and the order summary.

A sign-up made outside the link may not be attributed, so start from the link if you want the discount. As with any promotion, SumUp can change, refuse or withdraw the offer under its live terms, which is why the on-screen discount and current terms always take priority over any headline figure.

Claim it if you run — or are about to start — a UK business that needs to take card payments, and you were going to buy a SumUp reader anyway. The discount is a genuine saving on that hardware, there is no monthly tie-in, and the Solo Lite makes the barrier to entry low.

Skip it if you do not need a card reader, if you were hoping for a cash reward (this is a hardware discount, not cashback), or if your card volume is high enough that a lower-percentage provider with a monthly fee would cost you less over a year. In that case the transaction rate, not the sign-up discount, should drive the decision.