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Square (sometimes known as Squareup) is a payment services provider that enables UK businesses to accept digital payments, including credit cards, debit cards, international cards, and digital wallets.
Square card readers are required for UK businesses to accept in-person, contactless, and chip & PIN payments. Tap-to-pay software on compatible iPhone and Android devices is available for in-person contactless payments. No hardware is needed for online payments.
The Square Reader connects to a compatible smartphone or tablet via Bluetooth. Using the paired device’s internet connection, it accepts chip & PIN and contactless payments, including tap-to-pay.
The Square Terminal connects via Wi-Fi or Ethernet. It accepts card and contactless payments, including chip & PIN and contactless tap-to-pay. With no independent connection capabilities, it is used in a fixed payment area.
The Square Handheld connects via Wi-Fi. It accepts card and contactless payments, including chip & PIN and contactless tap-to-pay. This device is used in mobile payment environments within Wi-Fi range.
As a payment aggregator, Square onboards businesses as sub-merchants under a shared master merchant account.
Support is available through phone, live chat, an online resource library, and an online seller community.
Settlement timing is dependent on weekends, bank holidays, and the receiving bank.
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Square operates in the UK as a payment aggregator. Here, businesses are onboarded as sub-merchants under Square’s master merchant account rather than being issued an individual merchant account.
Typically, Square offers a uniform, fixed, transaction-based pricing model instead of fully negotiated pricing. A flat-rate pricing structure is applied across defined payment tiers. Higher turnover businesses may be eligible for fully custom pricing.
Within the UK payments market, Square operates as an aggregator offering multi-channel payments under a shared account structure, with pricing presented as standardised by payment type and package tiers, as well as custom pricing for higher-turnover businesses.
Businesses preferring flat-rate pricing: Square offers a fixed pricing structure rather than a fully negotiated pricing model.
Businesses accepting both in-person and online payments: In-person and remote payments are all processed through a single account.
Businesses wanting to own their hardware: Square card machines are purchased outright, as opposed to entering a monthly rental agreement.
Irregular or low-volume sellers: Flat-rate pricing and (on the free package tier) no fixed monthly fees may align with businesses that take card payments infrequently or at lower volumes.
Businesses not seeking long-term contracts: Square’s agreements do not require binding contracts; instead, they operate on a rolling basis.
Businesses seeking fully negotiated or bespoke pricing: Only businesses meeting an annual card processing threshold are eligible for custom pricing.
Businesses requiring fixed-term contracts: Square’s packages are rolling monthly deals with no fixed contracts, which may not align with businesses seeking binding contracts.
Businesses requiring individual merchant accounts: With Square’s aggregator model, merchants are onboarded as sub-merchants rather than issued an individual merchant account through an acquiring bank.
Businesses with complex or non-standard risk profiles: Aggregator onboarding and ongoing monitoring may result in additional review or restrictions depending on transaction activity and risk assessment.
Businesses requiring in-person payment acceptance outside the country of registration: Square’s hardware is country-locked and can only process in-person payments in the country of registration.
Square’s pricing structure is transaction-based and varies depending on how a payment is accepted and the payment channel.
Square offers multiple tiered pricing plans with fixed pricing structures. Businesses on these plans will operate under a fixed pricing model. Businesses that process a higher number of card transactions annually may be eligible for tailored pricing.
Square does not offer fixed-term processing contracts; instead, businesses enter a rolling agreement.
Hardware costs are handled separately from transaction fees. All card readers are purchased rather than rented. Businesses can purchase the machine with a single payment or spread the cost over a defined period.
Overall, the pricing structure is influenced by transaction volume, payment type, and transaction risk.
Square operates using an aggregator model, where businesses accept payments under a master merchant account. Other UK providers may operate acquiring or hybrid models with individual merchant accounts, negotiated pricing, or payment hardware provided under ongoing rental agreements rather than outright purchase.
Businesses will often shortlist acquiring banks when seeking dedicated merchant accounts or more direct control over acquiring arrangements. Aggregators are typically shortlisted where simplified onboarding and standardised pricing structures are used.
Some providers operate mixed pricing models, where flat-rate pricing applies to most businesses with eligibility for tailored packages, while others apply a single pricing approach, such as fully flat-rate or fully negotiated pricing.
Square sells card machines outright, with options to pay upfront or spread the cost over a defined period. Other UK providers may provide hardware under ongoing rental agreements instead of owning it outright.
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