To support the costs associated with editorial processes, online storage, indexing, DOI registration, and long-term archiving, SIGMA: Jurnal Pendidikan Matematika applies an Article Processing and Publication Charge (APC) of IDR 450,000 for each accepted article.

This fee is only charged after the manuscript has successfully passed the peer-review process and has been officially accepted for publication. There are no article submission or initial review fees (IDR 0).

The APC covers the following publication services:

1. Editorial handling and coordination of the peer-review process

2. Typesetting and formatting of the manuscript according to journal standards

3. Assignment of a Digital Object Identifier (DOI)

4. Long-term archiving and open-access publication via the official OJS platform

5. Promotion and indexing of the article through various academic databases and citation platforms