فَهَلْ عَسَيْتُمْ إِن تَوَلَّيْتُمْ أَن تُفْسِدُوا۟ فِى ٱلْأَرْضِ وَتُقَطِّعُوٓا۟ أَرْحَامَكُمْ ﴿٢٢﴾
So would you perhaps, if you turned away, cause corruption on earth and sever your [ties of] relationship?
Haram Family & relations
Is cutting off family ties haram?
Short answer
Yes. The Quran warns that those who cut what Allah ordered to be joined are cursed (47:22-23, 13:25). Keeping ties includes visiting, greeting, helping and forgiving relatives, even when they are unkind.
Evidence
Quran
أُو۟لَٰٓئِكَ ٱلَّذِينَ لَعَنَهُمُ ٱللَّهُ فَأَصَمَّهُمْ وَأَعْمَىٰٓ أَبْصَٰرَهُمْ ﴿٢٣﴾
Those [who do so] are the ones that Allah has cursed, so He deafened them and blinded their vision.
وَٱلَّذِينَ يَنقُضُونَ عَهْدَ ٱللَّهِ مِنۢ بَعْدِ مِيثَٰقِهِۦ وَيَقْطَعُونَ مَآ أَمَرَ ٱللَّهُ بِهِۦٓ أَن يُوصَلَ وَيُفْسِدُونَ فِى ٱلْأَرْضِ ۙ أُو۟لَٰٓئِكَ لَهُمُ ٱللَّعْنَةُ وَلَهُمْ سُوٓءُ ٱلدَّارِ ﴿٢٥﴾
But those who break the covenant of Allah after contracting it and sever that which Allah has ordered to be joined and spread corruption on earth - for them is the curse, and they will have the worst home.
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Questions about halal and haram
Is cutting off family ties haram?
Yes. The Quran warns that those who cut what Allah ordered to be joined are cursed (47:22-23, 13:25). Keeping ties includes visiting, greeting, helping and forgiving relatives, even when they are unkind.