A government audit into Erik Bromander's spending found that he broke the rules regarding expenses for five of his foreign business trips, reports newspaper Dagens Nyheter.
As the chief aide to Infrastructure Minister Anna Johansson, Bromander went on at least 27 foreign trips at a cost of SEK 829,000 since he was appointed in October 2014.
He must now pay back SEK 41,000.
Fredrik Ahlén, permanent undersecretary at the Ministry of Enterprise and Innovation, was responsible for the audit and declined to be interviewed.
Bromander was an unelected official in the ministry and worked as state secretary to Social Democrat Johansson. He was reported to have traveled mostly in business class, which is against government policy of trying to find the lowest possible fares. Bromander was also said to have extended business trips to become personal vacations.
After the news broke about his high spending, Bromander apologized and promised to "pay back every penny” he had misspent.