OBJECTIVES:  Cardiac ablation has been increasingly used to treat complex arrhythmias, once the success rate of the procedure reaches 86% while drug treatment reaches only 22% success rate. Studies demonstrate that, by using the Contact Force catheter it is possible to increase the success rate of the procedure, reduce complications and reduce the need of additional ablation procedures. It is estimated that in Brazil there are 940,000 people with Atrial Fibrillation and 44,000 would be eligible for ablation treatment in the private health care system(HCS)Our main objective in this study was to evaluate whether or not the adoption of Contact Force Cathether in a radiofrequency ablation can reduce costs in the Brazilian private HCS METHODS:  A budget impact model of the use of the contact force catheter technology was elaborated comparting it to catheter without contact force for AF ablation. One-year follow-up was considered. The success rates found in the literature were :92% for ablation using a contact force catheter; and 74% for non-contact force catheter ablation. Also there were developed two scenarios for the contact force technology adoption (70% and 100% adoption). Data were collected from a database that has 18 million lives. Total number and average reimbursement of procedures were included. RESULTS:  The initial investment in catheter adoption in the private HCS would be USD$ 685,358 and USD$1.4 million, considering 70% and 100% conversion scenario, respectively. However, considering the total cost of treatment in one year, the HCS would have a cost reduction of USD$ 2.3 million and USD$ 4.8 million, considering the scenarios of 70% and 100% of conversion, respectively. CONCLUSIONS:  The adoption of the Contact Force Catheter in ablations by the Brazilian private HCS could improve patients´ clinical outcomes, and potentially reduces the total costs of treatment, bringing economic and financial sustainability to HCS.