The charge of a neutron is zero.
Neutrons are subatomic particles that make up the nucleus of an atom, along with protons. Protons have a positive charge, while electrons, which orbit around the nucleus, have a negative charge. Neutrons, however, do not possess any electrical charge and are considered electrically neutral. This means their charge is zero.
The lack of charge in neutrons allows them to contribute to the overall mass of an atom without affecting its electrical charge.