ABSTRACT Objective To describe and analyze the aspects regarding the cost and length of stay for elderly patients with bone fractures in a tertiary reference hospital. Methods A cross-sectional retrospective study using data obtained from medical records between January and December 2020. For statistical analysis, exploratory analyses, Shapiro-Wilk test, χ2 test, and Spearman correlation were used. Results During the study period, 156 elderly patients (62.2% women) with bone fractures were treated. The main trauma mechanism was a fall from a standing height (76.9%). The most common type of fracture in this sample was a transtrochanteric fracture of the femur, accounting for 40.4% of cases. The mean length of stay was 5.25 days. The total cost varied between R$2,006.53 and R$106,912.74 (average of R$15,695.76) (updated values). The mean daily cost of hospitalization was R$4,478.64. A positive correlation was found between the length of stay and total cost. No significant difference in cost was observed between the two main types of treated fractures. Conclusion Fractures in the elderly are frequent, resulting in significant costs. The longer the hospital stay for treatment, the higher the total cost. No correlation was found between total cost and number of comorbidities, number of medications used, and the comparison between the treatment of transtrochanteric and femoral neck fractures. crosssectional cross sectional 2020 analysis analyses ShapiroWilk Shapiro Wilk test χ used period 15 62.2% 622 62 2 (62.2 women 76.9%. 769 76.9% . 76 9 (76.9%) femur 404 40 4 40.4 cases 525 5 25 5.2 days R200653 R 006 53 R$2,006.5 R10691274 106 912 74 R$106,912.7 average R$15,695.76 R1569576 695 updated values. values values) R447864 478 64 R$4,478.64 frequent costs comorbidities 202 1 62.2 6 (62. 76.9 7 (76.9% 40. 52 5. R20065 00 R$2,006. R1069127 10 91 R$106,912. R$15,695.7 R156957 69 R44786 47 R$4,478.6 20 62. (62 76. (76.9 R2006 0 R$2,006 R106912 R$106,912 R$15,695. R15695 R4478 R$4,478. (6 (76. R200 R$2,00 R10691 R$106,91 R$15,695 R1569 R447 R$4,478 ( (76 R20 R$2,0 R1069 R$106,9 R$15,69 R156 R44 R$4,47 (7 R2 R$2, R106 R$106, R$15,6 R15 R4 R$4,4 R$2 R10 R$106 R$15, R1 R$4, R$ R$10 R$15 R$4 R$1