Glossary · Hardware · 5 min read

PDQ (Process Data Quickly)

PDQ is a UK term for a card payment machine used for in-person transactions. It refers to the same kind of device as a payment terminal, not a separate payment technology or fee category.

What PDQ means

In the UK, businesses and customers use PDQ as a familiar name for a card machine or payment terminal. The letters are commonly expanded as “Process Data Quickly,” but PDQ is used as a general label, not the name of a specific card network, device model, or processing standard. It describes the equipment that accepts a card or mobile wallet and sends the payment for authorization.

You are most likely to see “PDQ machine” or “PDQ terminal” in UK supplier materials, equipment listings, or conversations about taking card payments. In the United States, “payment terminal,” “card reader,” and “POS terminal” are more common, so you usually encounter PDQ in UK-facing material or while working with a UK location. The term itself does not signal a different fee or add-on cost; compare the quoted hardware and service terms. The rest of this page explains payment terminals and what to review about the device and its costs.

What a payment terminal is

A payment terminal is the physical device your customer uses to pay in person. It reads payment credentials from a chip card, a contactless card or phone, or a magnetic stripe, then sends an authorization request through your payment provider and the card network to the issuing bank. The bank returns an approval or decline through the same route.

The terminal and your point-of-sale (POS) system are different tools. The terminal handles the payment interaction. POS software can manage inventory, employee permissions, discounts, receipts, and sales reports. Some devices combine both functions.

A terminal is a hardware decision, not a processing-rate deal. Compare the total equipment cost and negotiate the markup separately.

How it works at checkout

For a chip payment, the customer inserts the card. For contactless, they tap a card or mobile wallet. Chip and tap transactions generate a unique transaction code. A mobile wallet passes a token instead of the card number. After approval, transactions are captured in a batch, and deposits arrive within one to two business days, depending on your processor’s schedule.

Countertop terminals suit a fixed checkout. Portable models connect by Wi-Fi or Bluetooth, while mobile readers pair with a phone or tablet. A compatible smartphone can also accept contactless payments without a separate reader. Match the device to how your staff take payments, rather than paying for features you will not use.

Illustrative hardware cost comparison

Outright purchase$300 total
Lease, $30 monthly for 24 months$720 total
Difference$420

Illustrative figures only. Compare actual equipment prices, fees, and lease terms before signing.

What it means for your costs

The terminal does not set your transaction rate. Your card costs have three layers: interchange paid to the issuing bank, network fees, and your processor’s markup. Only the markup is negotiable. Your terminal can affect how a transaction is entered, but the hardware purchase or lease is a separate cost from processing fees.

Compare the full hardware cost, not just the monthly payment. For example, a $30 monthly lease for 24 months totals $720, while a $300 outright purchase costs $300. Both figures are illustrative. A lease can cost more than the machine’s value and lock you into payments, so get the total term cost and cancellation terms in writing.

Security and the wrong setup

In the US, the EMV liability shift took effect for most in-person merchants in October 2015. When counterfeit fraud occurs, the party using the less secure technology bears the loss. A chip-capable terminal helps you accept chip payments instead of defaulting to a magnetic stripe. PCI DSS applies to every business that accepts cards, and merchants remain responsible for how devices and their network are handled.

An incompatible terminal and POS system can leave staff entering sales twice and create reconciliation work. Before buying or leasing, verify compatibility with your POS, the payment types you accept, and your internet connection. A point-to-point encryption certified terminal can reduce PCI scope, but it does not remove your responsibility to handle the device securely.

What you can actually change

  1. Get the full term cost. Add every monthly payment, setup charge, and required fee. Ask for the contract length, early-cancellation terms, and whether you own the device at the end.
  2. Confirm compatibility first. Have your POS provider confirm the exact terminal model supports your software, payment types, receipt needs, and connection setup before you commit.
  3. Separate hardware from rates. Review equipment charges separately from interchange, network fees, and processor markup. Focus rate negotiations on the markup, which is the negotiable layer.

Frequently asked questions

What does PDQ stand for?

PDQ is commonly expanded as “Process Data Quickly” in UK payment terminology. It is also used as a general name for a card machine.

Is a PDQ machine different from a payment terminal?

No. PDQ is a UK name for the same type of device that US businesses more often call a payment terminal or card reader.

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