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.
اور جو چوری کرے مرد ہو یا عورت ان کے ہاتھ کاٹ ڈالو یہ ان کے فعلوں کی سزا اور خدا کی طرف سے عبرت ہے اور خدا زبردست (اور) صاحب حکمت ہے
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.