Do new immigrants (olim) get a discount on arnona?

Yes, but you must apply for it. The national framework entitles new olim to a reduction of up to 90% in their first year and up to 75% in their second year on their primary Israeli residence. The reduction is not applied automatically — you must submit an application to your local municipality's arnona department with a copy of your oleh certificate. Applications are generally not backdated beyond the date of submission, so apply as soon as you take possession of your apartment.