The Small Payment Institution (PL: ,,Mała instytucja płatnicza”, ,,MIP”) has been operating in the Polish legal order since 2018. Its establishment allows for the provision of payment services to a limited extent and, for many entities, represents a very important transitional stage preceding the establishment of a National Payment Institution (NPI). What do you need to keep in mind if you are operating an MIP or considering setting one up?