Oliver Mackman
Director, MerchantHQ
Oliver leads MerchantHQ's terminal testing and acquirer comparison. With a background in UK commercial finance and merchant payments, he oversees terminal reviews, switching guidance and high-risk vertical mapping.
What I cover on MerchantHQ
Terminal reviews (hands-on, with test transactions), the trade matrix (which terminal and which acquirer for which trade), switching content (exit pain from Worldpay, Barclaycard, Elavon), high-risk merchant accounts (UK acquirers for CBD, vape, adult, firearms, gambling), and Tap to Pay on iPhone. Every review I publish, I have personally tested.
- · card terminals
- · merchant accounts
- · payment processing
- · Tap to Pay
- · high-risk merchant accounts
Background
Director of Best Business Loans Ltd, the company that owns and operates BestBusinessLoans, FundBiz, MarketInvoice and MerchantHQ. Background in UK commercial finance and merchant payments, with hands-on experience of terminal estate management and acquirer-switching from a buy-side perspective.
Book
Oliver is the author of The UK Card Payments Handbook (2026), a plain-English guide to choosing a card machine, merchant account and payment processor, published by MerchantHQ.
The UK Card Payments Handbook Interchange and fees, contracts and switching, PCI and chargebacks, and how to compare providers. Free on Kindle, Google Play Books, or download. 2026 Edition. MerchantHQ. Verified profiles
Editorial standards
Reviews on MerchantHQ follow our published testing methodology and editorial policy. Commission relationships are documented in how we are funded.
This page is automatically updated when Oliver's bio, role or profile links change. Last reviewed: 12 May 2026. To contact the editor on any of the published reviews, email adam@muswellrose.com with the page URL and your question.