Sunni Islamic Inheritance Prescribed or Fixed sharer from Holy Quran and Sunnah

Updated: Mar 24

Before we learn about Prescribed sharer


It would be best you refer to "7 FUNDAMENTALS OF ISLAMIC INHERITANCE LAW" for dynamic and simultaneous application for calculating Islamic inheritance shares.


Islamic Inheritance inheritors classifications


Assuming that the Husband is left with the Wife alive, Husband’s close relatives will inherit in certain conditions and blocking rules. Eligible inheritors, in this case, can be classified into four major groups as Spouse, Descendants, Collateral, and Descendants. Please note following important

  1. The Husband, wife, son, daughter, father, and mother are the six primary inheritors who are never excluded from succession by any other relative of the deceased.

  2. Four substitute inheritors generally take the place of the primary inheritors in the latter's absence. They are the Sons of Sons how low soever, Daughters of Sons how low soever, the Father of Father how high soever, Mother of Mother and Mother of Father how high soever. Mother of Father’s share is subject to differences of opinions of Soonnee Islamic jurisprudence.

  3. The secondary inheritors' group comprises the Full, Paternal and Maternal Siblings of the deceased and Consanguine male relatives. This group of inheritors is subject to certain conditions, blocking rules and differences of opinions of Soonnee Islamic jurisprudence.

  4. The children, grandchildren how low soever of deceased referred above, may belong to the surviving spouse or from another marriage of the deceased spouse.

  5. The distant kindred can inherit in all groups and classes above when fixed and residuary sharers are not alive. One exception to this rule is, distant kindred do inherit in the presence of Husband or Wife in certain conditions.


Prescribed sharer


Prescribed sharer, residuary, and the concept of Radd (i.e., Reduce) and Awal (i.e., Increase) shares clearly shown in the below representation.


Fixed and residuary shares in Islamic law

Prescribed or Fixed sharer

There are twelve fixed or prescribed sharers that include Husband or Wife, Daughters (or Granddaughters), Father (or Grandfather), Mother (or Grandmothers), Full and Paternal Sisters, Maternal Brothers and Maternal Sisters. The Shares for Granddaughters (i.e., Daughters of Sons how low soever), Grandfather (i.e., Father of Father), Grandmothers (i.e., Mother of Father, Mother of Mother how high soever) derived from Qiyas called analogical deductions. The Prescribed or fixed sharers fall into one of the fixed sharers 1/8, 1/6, 1/3, 1/2, 1/4, and 2/3. However, these shares cannot stay fix in the many situations such as Radd and Awal scenarios. Total share is less than 1 (or 100%) in the Radd situation, and so all claims are increased except Spouse shares to make the total share to be 1 (or 100%). On the other hand, the Total share is more than 1 (or 100%) in the Awal situation, and so all shares are reduced to make the total share to be "1" i.e. ONE.


Husband's share

  • 1/2 if Wife left with Children, Grandchildren how low soever.

  • 1/4 if Wife left with no Children, no Grandchildren how low soever.


Wife's share

  • 1/8 if Wife left with Children, Grandchildren how low soever.

  • 1/4 if Wife left with no Children, no Grandchildren how low soever.


Daughter's share

  • 1/2 for Single Daughter alive.

  • 2/3 for Multiple Daughters alive.


Son's share

  • iR (Independent Residuary) if no Daughters.

  • jR (Joint Residuary)in 2 (Sons): 1 (Daughters) in the presence of Daughters


Daughter's of Son's share

  • 1/2 for Single Daughter of Son alive.

  • 2/3 for Multiple Daughters of Sons alive.

  • 1/6 for Single Daughter of Son alive in the presence of Single Daughter.


Son's of Son's share

  • iR (Independent Residuary) if no Daughter of Son alive.

  • jR (Joint Residuary)in 2 (Sons of Sons): 1 (Daughters of Sons) in the presence of Daughters.


Father's share

  • 1/6 for Father.

  • 1/2 for Father if only Mother (receives 1/4) and Wife (receives 1/4) alive.

  • 1/3 for Father if only Mother (receives 1/6) and Husband (receives 1/2) alive.

  • 1/6+iR (Independent Residuary) if no Sons, Sons of Sons how low soever alive.


Father of Father's share

  • 1/6 for Grandfather (Father of Father) if Father is not alive.

  • 1/6 for Great Grandfather (Father of Father of Father) if Father and Grandfather (Father of Father) how high soever are not alive.

  • 1/6+iR (Independent Residuary) if no Sons, Sons of Sons alive how low soever alive and no Father alive.


Mother's share

  • 1/3 for Mother if no Children, no Grandchildren how low soever alive as well as if no Multiple full or Multiple paternal or Multiple maternal siblings alive.

  • 1/6 for Mother in the presence of children or Grandchildren how low soever as well as if Multiple full or Multiple paternal or Multiple maternal siblings alive

  • 1/4 for Mother if only Father and Wife alive.


Mother of Mother's share

  • 1/6 for Mother of Mother if no Mother and no Mother of Father alive.

  • 1/12 for Mother of Mother if no Mother but Mother of Father alive.


Mother of Father's share

  • 1/6 for Mother of Father if no Mother and no Mother of Mother alive.

  • 1/12 for Mother of Father if no Mother but Mother of Mother alive.


Full Sister's share*

  • 1/2 for Single if no Full Brothers alive.

  • 2/3 for Multiple if no Full Brothers alive.


Full Brother's share*

  • iR (Independent Residuary) if no Full Sister.

  • jR (Joint Residuary)in 2 (Full Brothers): 1 (Full Sisters) in the presence of Full Sisters.


Paternal Sister's of Son's share*

  • 1/2 for Single if no Full Brothers and Full Sisters alive.

  • 2/3 for Multiple if no Full Brothers and Full Sisters alive.

  • 1/6 for Single in the presence of Single Full Sister


Paternal Brother's share*

  • iR (Independent Residuary) if no Paternal Sisters and no Full Brothers.

  • jR (Joint Residuary)in 2 (Paternal Brothers): 1 (Paternal Sisters) in the presence of Full Sisters but no Full Brothers.


Maternal Sibling's share*

  • 1/6 for Single

  • 1/3 for Multiple

* - Additional Conditions and Blocking rules may apply for Siblings' share.



Allah, the Most Glorified and the Most High, knows the best. As a human, We are limited to everything and can not perceive it in totality...


Fixed and residuary shares in Islamic law

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