Latar Belakang: Gangguan kesehatan mental memberikan beban ekonomi signifikan secara global, dengan proyeksi kerugian mencapai USD 6 triliun pada tahun 2030. Di Indonesia, estimasi biaya langsung tahunan mencapai Rp87,5 triliun apabila seluruh invidiu dengan gangguan mental menjalani pengobatan rutin. Tujuan: Mengetahui besaran biaya dan faktor-faktor yang berhubungan dengan biaya layanan kesehatan mental pada rawat jalan FKRTL Peserta JKN. Metode: Desain studi dengan potong lintang menggunakan Data Sampel BPJS Kesehatan 2024. Analisis dilakukan secara univariat dan bivariat terhadap 785.150 peserta aktif layanan kesehatan mental. Hasil: BPJS Kesehatan menanggung total biaya layanan kesehatan mental sebesar Rp3,4 triliun dalam satu tahun. Terdapat hubungan signifikan antara biaya layanan dengan usia, segmentasi peserta, jumlah diagnosis, frekuensi kunjungan RJTL, regional FKRTL, kepemilikan FKRTL, dan kondisi penyakit kronis. Kesimpulan: Biaya tertinggi ditemukan pada kelompok usia lanjut dan wilayah Regional 1, yang mencerminkan konsentrasi layanan serta akses yang lebih optimal. Temuan ini menyoroti pentingnya pemerataan dan pendekatan berbasis kebutuhan layanan kesehatan mental.

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Background: Mental health disorders present a significant global economic burden, with projected losses reaching USD 6 trillion by 2030. In Indonesia, the estimated annual direct cost may reach IDR 87.5 trillion if all individuals with mental disorders undergo routine treatment. Objective: To identify the total cost and factors associated with mental health service expenditures in outpatient care at advanced referral health facilities (FKRTL) for JKN participants. Methods: This study uses cross-sectional design using the 2024 BPJS Kesehatan Sample Data. Univariate and bivariate analyses were conducted on 785,150 active mental health service users. Results: BPJS Kesehatan covered a total of IDR 3.4 trillion in mental health outpatient services within one year. There was a significant relationship between service costs and age, participant segmentation, number of diagnoses, outpatient visits frequency, advanced health facilities regional, advanced referral health facilities ownership, and chronic disease conditions. Conclusions: The highest costs were observed among the elderly and in Regional 1, reflecting a concentration of services and better access. These findings highlight the importance of equitable distribution and need-based approaches in mental health service financing.