# PAY by square

> Source: https://docs.barcoder.ai/docs/payments/SK/pay-by-square
> extracted at 2026-10-06
> Publisher: Barcoder — encyclopedia of QR, barcode and payment-code standards

**Country:** Slovakia (`SK`)
**Adoption:** All Slovak banks [13]
**Primary use:** Invoices, bills, P2P, POS

## Technical standard

See [pay-by-square](https://docs.barcoder.ai/docs/standards/pay-by-square) for the underlying barcode/QR specification.

## Source

Extracted from [SK-slovakia.md](https://docs.barcoder.ai/docs/payments/SK) — see that report for full banking landscape, technical specifications, and citations.