Plans, fees, and what you need
Square says Payment Links have no monthly fee and lists a 3.3% + $0.30 online processing fee per transaction for new Square customers. Afterpay transactions are listed at 6% + $0.30 per transaction. The broader Square U.S. pricing page says Square Free has no monthly subscription cost, while Plus and Premium have subscriptions and lower processing rates; the exact Payment Links rate for a paid plan should be confirmed against the account's current plan. A seller needs a Square account and a linked bank account for transfers. Hardware is not required: Square identifies payment links as a no-hardware payment method. A stable internet connection and a current supported browser or current Square app are operational prerequisites.
