Traffic accidents tend to increase and are still a major problem in road transportation in Indonesia. A traffic accident is an incident on the road that is unexpected and unintentional involving a vehicle with or without other road users, resulting in human casualties and/or property loss. This loss of property or material is then referred to as the cost of a traffic accident. This research was conducted to determine the percentage change in the number of accidents, the cost of traffic accidents in Karawang Regency. The method used in calculating the amount of traffic accident costs is by using the gross output (human capital) method. Data on accident victims in the state of Death, serious injury, Minor injury and material losses in 2016, 2017, 2018, 2019, and 2020 were obtained from Indonesian Police Authority Resort Karawang. The number of traffic accidents in 2016 was 540 accidents. In 2017, there were 534 accidents. In 2018, there were 630 accidents. In 2019, there were 817 accidents and in 2020 there were 728 accidents. The results of the analysis showed that the largest increase in the number of accidents was in 2019, which increased by 29.68% from 2018 and the largest reduction in the number of accidents was in 2020, which decreased by 10.89% from 2019. The cost of traffic accident victims using the Gross Output method shows that 2019 was the year with the largest cost of traffic accident victims with the largest cost of Rp. 189.115.338.860,06 where the average cost of accident victims per month was the highest in 2019 which was Rp. 15.759.611.571,67 /month and 2016 was the year with the lowest cost of traffic accident victims at a cost of Rp. 135,804,470,051.69 where the average monthly cost of accident victims was the lowest, which was Rp. 11,317,039,170.97 /month.