PastPay cofounders Bálint Réti and Benjamin Berényi.PastPayPastPay, a Hungarian B2B BNPL startup, raised $13.3 million in Series A funding.The company offers flexible payment terms to merchants through factoring to improve liquidity.The B2B BNPL market is growing, especially in the SME sector, amid a push to digitize payments.PastPay, a Hungarian startup that offers businesses buy-now, pay-later services for invoices, has raised $13.3 million in Series A funding.Based in Budapest, PastPay says it provides merchants with flexible payment terms through factoring, a process in which a company sells its accounts receivable to improve liquidity and free up cash flow.Companies typically provide invoices for services, but payment timelines can be tricky, with windows of 15 to 90 days for transfers.