How are adopted children treated in Islamic wills?

Adoption as understood in English law - where adopted children become legal children of their adoptive parents - doesn't exist in classical Islamic law. However, Islam strongly encourages caring for and raising orphaned or needy children (Kafala).

Islamic inheritance position:

• Adopted children do not automatically inherit as biological children under fixed shares (Faraid)
• Their biological family relationships remain their inheritance pathway
• However, you can and should provide for adopted children through your optional one-third bequest (Wasiyyah)

English law position:

• Legally adopted children have the same inheritance rights as biological children
• They could challenge your will if inadequately provided for

Practical solutions:

Many Muslims who have raised adopted children:

• Leave them a substantial portion (up to one-third) through Wasiyyah
• Ensure they're well provided for even though not fixed share heirs
• Consider lifetime gifts to support them
• Make arrangements that honor both Islamic principles and their parental love

If you're raising adopted or foster children, it's especially important to make a will that explicitly provides for them, as they won't automatically inherit under classical Islamic rules. Consult an Islamic scholar if you need guidance on balancing religious principles with your responsibility to children you've raised.