Increase and diversification of the migrant population can have significant implications for the Norwegian Health Plan's commitment towards equitable access. Despite the generous nature of the welfare state in Norway and emphasis on culturally sensitive care, it is important to consider the various impediments that some migrants may experience in accessing and consuming healthcare services. We conducted a scoping review aimed to shed light on the extent of healthcare utilization and the socioeconomic barriers experienced by migrants. Our review illustrates that migrants' overall consumption of different forms of healthcare services is lower than that of the general population but varies between different migrant groups. Financial affordability has been found to influence use of services that more or less fall out of the publicly covered healthcare benefits, such as dental care, physiotherapy and private specialists' care. However, there is lack of information on how affordability influences use of primary healthcare, somatic specialist care, nursing homes and mental healthcare. While there is evidence of socioeconomic barriers at the patient level for utilization of primary healthcare services, including both pre-migration aspects and factors in the host country, the question of affordability often becomes subordinate in the context of the welfare state. Our review suggests further examination of pro-rich inequity in healthcare services, given the rising income inequality in Norway, and with migrants usually having lower incomes than the rest of the population. Furthermore, research needs to take into account different groups of migrants such as undocumented refugees, migrants awaiting residency and labour migrants in order to examine barriers encountered both in everyday experiences as well as structural barriers to healthcare consumption.