Yes. Allah ordered the punishment for theft in the Quran (5:38), which shows that it is a serious sin. Taking another person's property wrongfully in any way is forbidden.
Erkek hırsız ve kadın hırsızın, yaptıklarından ötürü Allah tarafından ibret verici bir ceza olarak, ellerini kesin. Allah Güçlü'dür, Hakim'dir.
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is stealing haram?
Yes. Allah ordered the punishment for theft in the Quran (5:38), which shows that it is a serious sin. Taking another person's property wrongfully in any way is forbidden.