Square fee changelog
Verified against the official pricing page. Open the Square calculator.
Initial verification from Square's official pricing pages for the US, UK, Canada and Australia, cross-checked against Square's "Learn about Square fees" support-centre article for each market; every rate here agrees between the two sources. US rates are Square's new no-monthly-fee "Square Free" plan — Square Plus and Square Premium subscribers pay less on in-person and (in the US) online card payments, which is not modelled. No international-card surcharge is published on Square's Australian pricing or fee pages, so none is included for AU.