Initially, it was manifested primarily through higher consumption financed mainly by increased spending by the government and humanitarian organisations. Despite being forced to flee their homes, refugees from Ukraine very quickly entered the labour market as employees and entrepreneurs. In our study, we take a closer look at this phenomenon and analyse its economic impact on the Polish economy, comprehensively considering the supply side of the economy, including labour supply and productivity, and the demand side, estimating by how much this has collectively raised Polish GDP.