Islamic Inheritance Calculator & Ilm al-Faraid Guide: Quranic Fixed Shares (Ashabul Furudh) & Residuary Heirs (Asabah)
Ilm al-Faraid (the Islamic science of inheritance) mandates precise mathematical fractions for surviving family members after funeral expenses, debts (Tirkah), and up to 1/3 Wasiyyah bequests are settled. Here is how Quranic fixed shares (Ashabul Furudh) and residuary heirs (Asabah) work in practice.
1. Order of Priority in an Islamic Estate (Al-Tirkah) Before Faraid Distribution
Under classical Sunni fiqh and modern Islamic family statutes, a deceased Muslim's gross estate (Tirkah) is never distributed immediately to heirs. First, any joint marital property (such as 50% community property / Harta Gono-Gini where applicable) belonging to the surviving spouse is separated from the decedent's personal estate.
Second, three mandatory deductions must be settled in strict sequence: (1) reasonable funeral and burial expenses (Tajhiz al-Janazah), (2) all unpaid financial debts to individuals or institutions as well as religious obligations (unpaid Zakat, Kaffarah, or Hajj Badal), and (3) valid Wasiyyah bequests to non-heirs or charities capped at a maximum of one-third (1/3) of the net estate. Only the remaining net balance (Al-Irts) enters the Faraid calculation.
- •Primary Quranic Heirs Who Are Never Excluded (Hajb Hirman): The biological Father, Mother, Husband, Wife, Son, and Daughter always receive a share if alive, though their fraction shifts based on the presence of children (Partial Exclusion / Hajb Nuqsan).
- •Fixed Share Heirs (Ashabul Furudh): The Quran specifies six exact fractions—1/2, 1/4, 1/8, 2/3, 1/3, and 1/6—in Surah An-Nisa verses 11, 12, and 176.
- •Residuary Heirs (Asabah): Male agnatic relatives (such as sons, or daughters alongside sons in a 2:1 ratio under Asabah bil-Ghair) inherit the remaining estate after fixed shares are satisfied.
2. Combining Free Faraid Simulation with a Zero-Knowledge Encrypted Asset Vault
Knowing the mathematical Faraid percentages is useless if your spouse and children cannot locate your bank accounts, Takaful/life insurance policies, gold holdings, brokerage accounts, or crypto wallets. Al-Wasiyah (https://alwasiyah.com) combines a 100% Free Islamic Inheritance Calculator (Kalkulator Faraid Syariah) & Civil Law Calculator plus a Printable A4 Family Asset Inventory (/partners?paperOnly=1) with an encrypted client-side AES-256-GCM digital vault.
Families can use the Faraid calculator and printable A4 checklist for free forever. When you are ready to enable automated Dead Man's Switch heartbeat monitoring, multi-guardian quorum verification, encrypted voice memos, and cloud backup, you can upgrade to the Pro Annual Pass ($19 USD / year via Polar or Rp 49.000 / tahun via Xendit; $17.10 USD / Rp 44.100 with a 10% referral code) or the Pro Lifetime Vault Pass ($49 USD Lifetime or Rp 99.000 one-time forever; $44.10 USD / Rp 89.100 with a 10% referral code).
- •Proportional Reduction (Awl) & Return (Radd): Automatically handles cases where total fixed fractions exceed 100% (Awl) or leave an unclaimed surplus without Asabah (Radd).
- •Free Printable A4 Schedule (/partners): Generate a clean, physical A4 asset inventory and heir schedule for your estate lawyer, Imam, or Notary.
- •Partner & Financial Planner Program: Islamic estate planners, Imams, and Notaries earn a 30%–40% perpetual revenue share while giving clients a 10% discount.
✅ Checklist Langkah Persiapan Keluarga
🖨️ Cetak Versi Kertas A4 →- ☑Separate personal pre-marital assets from joint marital property before running the Faraid calculation.
- ☑List all unpaid personal loans, mortgages, unpaid Zakat, and Kaffarah in your Amanah Debt Ledger.
- ☑Verify that any charitable Wasiyyah bequest or gift to non-heirs does not exceed 1/3 (33.33%) of the net estate.
- ☑Run the free Islamic Inheritance Calculator on Al-Wasiyah to preview exact fractions for spouse, parents, sons, and daughters.
- ☑Print the A4 Family Asset Inventory at /partners?paperOnly=1 and store encrypted account recovery instructions in your AES-256-GCM vault.
Siap Menyusun Brankas Wasiat Digital atau Mencetak Formulir Inventaris Harta A4?
Gunakan Kalkulator Faraid Syariah & Hukum Perdata (BW) serta Formulir Inventarisasi Harta & Checklist Ahli Waris A4 secara Gratis (mode kertas murni di /partners?paperOnly=1). Untuk fitur Enkripsi Zero-Knowledge AES-256-GCM & Dead Man's Switch, tersedia Pro Annual Pass Rp 49.000/tahun ($19 USD/yr) atau Pro Lifetime Vault Pass Rp 99.000 Sekali Bayar Selamanya ($49 USD Lifetime) (diskon 10% dengan kode referral mitra + komisi afiliasi 30%–40% untuk Notaris/CFP).
Pertanyaan yang Sering Diajukan (FAQ)
Why does a son receive twice the share of a daughter (2:1) under Islamic inheritance law?▼
In Islamic jurisprudence, a son's 2:1 share alongside a daughter (Surah An-Nisa 4:11) is tied to his mandatory financial obligation (Nafaqah) to provide housing, maintenance, and Mahr for his wife and family, whereas a daughter's inherited share is 100% her personal protected wealth with zero legal obligation to spend it on household expenses. Furthermore, adult heirs may mutually agree to an amicable settlement (Takharuj / Sulh) after knowing their exact Sharia entitlements.
Is the Al-Wasiyah Islamic Inheritance Calculator free to use?▼
Yes. Both the Islamic Inheritance Calculator (Kalkulator Faraid Syariah) and Civil Law (Hukum Perdata BW) Calculator, along with the Printable A4 Family Asset Inventory & Inheritance Checklist (/partners), are 100% free. Optional Pro upgrades for automated Dead Man's Switch & Cloud Encrypted Vault cost $19 USD/year (Rp 49.000/tahun) for the Pro Annual Pass or $49 USD one-time (Rp 99.000 Sekali Bayar Selamanya) for the Pro Lifetime Vault Pass.
What happens in Faraid when the fixed shares add up to more than 100% (Awl)?▼
When the sum of Quranic fixed shares exceeds 1 (for example, a husband receiving 1/2 and two full sisters receiving 2/3, totaling 7/6), the doctrine of Awl (proportional reduction) increases the common denominator from 6 to 7 so every fixed-share heir's portion is adjusted proportionally without excluding anyone.