Inflation is a condition in the economy in which there is an increase in the general price level of goods and services that consumers buy in a certain period. Inflation and its impact on the entire economy have been the subject of research since the very beginnings of using money until today. Inflation has once again found itself at the center of economic debates and has become a hot topic after various influences that have led to its growth such as: the COVID-19 pandemic, disruptions in supply chains, wars and geopolitical tensions. The sudden transition to a new period marked by high inflation and interest rates had a significant impact on the operations of insurance companies in the Republic, that is, on their performance indicators and premium policies. The examination of the impact of inflation on the performance indicators of insurance companies in the Republic of Croatia is the subject of this work. The goal is to quantitatively examine the effect of inflation on selected business indicators of insurance companies and to provide new insights into the relationship between inflation and the insurance industry, which can advance theory and practice in the field of economic analysis of the insurance industry. For this purpose, the method of regression analysis is used, the results of which confirm the existence of a statistically significant influence of inflation on the performance indicators of insurance companies.