All articles published in the Journal of the Indonesian Mathematical Society are fully open access. To ensure free access for readers worldwide, support the continuous improvement of our journal management system, and maintain long-term digital archiving, an Article Processing Charge (APC) is applied to all submitted manuscripts.

Effective for manuscripts submitted on or after 1 July 2026, the APC for this journal has been revised as follows: USD 200 for all authors.

Manuscripts submitted before 1 July 2026 will remain subject to the previous APC policy.