Built for the Ummah
For the Ummah
Assalamu Alaikum. We're a team of Muslim engineers who saw a gap: the tools our community needed for zakat, estate planning, and halal finance either didn't exist or didn't meet the standard our deen demands. So we built them. Every calculation traces back to a named scholar, institution, or classical text, because your ‘ibadah deserves that precision.
Who We Are
We're Muslims first, engineers second. We use these tools for our own zakat and our own families' estate plans. That personal stake drives the care we put into every feature. When we calculate your zakat, we hold it to the same standard we hold our own.
10+ Years in Cybersecurity
Security-first isn't just a feature for us, it's how we think. Every architectural decision, from how your data is encrypted at rest to how bank connections are handled, comes from a decade of protecting systems and people.
Software Engineering
Full-stack development with modern frameworks, bank-level integrations (Plaid, Stripe), and zero raw credential storage. We build tools we trust with our own data and our own families.
Data Analytics
From live gold price feeds powering nisab calculations to year-over-year zakat tracking, every data point is handled with intention and care.
Built by Nūn Labs
Nūn Labs (Summer Slice LLC) builds purposeful digital products rooted in faith. OurBarakah and Zaqat are part of a growing suite of tools designed to serve the community.
Explore all our tools at summerslice.xyzOur Approach
We want to be upfront about something: we are not scholars, and we do not issue fatwas. What we bring to the table is engineering precision applied to existing, verified scholarly rulings. Centuries of scholarship already exist on these topics. Our job is to implement that work faithfully and make it accessible to everyone who needs it.
Full Market Value
Endorsed by FCNA, IFA-OIC, al-Qaradawi, ISNA, ICNA. Stocks at 100% market value.
Liquid Assets Only
AAOIFI Std. 21 & 35, Joe Bradford. ~30% CRI proxy for diversified portfolios.
Ja‘fari Engine
Sistani, Khomeini, al-Khoei, al-Yazdi. Zakat on the 9 traditional items only.
Legitimate scholarly difference exists on many of these topics, and we believe your tools should respect that by giving you the choice. Read the full methodology deep-dive →
Scholars & Institutions We Follow
We stand on the shoulders of scholars who have dedicated their lives to this knowledge. Every ruling in our platform is sourced from their work. We don't need to create our own logic because verified scholarship already exists, and we are grateful for it.
Institutions
Accounting & Auditing Organization for Islamic Financial Institutions
Shariah Standards 21 & 35, the global framework for zakat on financial instruments.
International Islamic Fiqh Academy
Resolution No. 28 on zakat of shares. The OIC's primary jurisprudential body.
Assembly of Muslim Jurists of America
Resolutions on retirement accounts, cryptocurrency, and Islamic wills in the West.
Islamic Society of North America
Zakat guidelines for retirement accounts and North American Muslim communities.
National Zakat Foundation (UK)
Practical zakat guides on stocks, pensions, and modern financial products.
Saudi Zakat, Tax and Customs Authority
The world's largest regulated zakat collection body. Mandates full market value.
Contemporary Scholars
Fiqh al-Zakat (1973)
The most comprehensive modern treatment of zakat law.
CRI / Liquid Assets methodology
Contemporary North American scholarship on zakat and estate planning.
Zakat: Unresolved Issues in the Contemporary Fiqh (1991)
Critique of net-asset discount methodology; advocate for full market value.
ISNA Zakat Guidelines
Guidance on retirement account zakat treatment.
Islamic Finance Perspective on Cryptocurrency (2019)
Ruling that cryptocurrency qualifies as zakatable wealth.
Ja‘fari (Shia) Authorities
Tawdih al-Masa'il
The most widely followed contemporary Ja'fari legal manual.
Tahrir al-Wasilah (1970)
Authoritative Ja'fari legal text on zakat and the 9 zakatable items.
Minhaj al-Salihin
Detailed nisab and rate tables for Ja'fari zakat.
al-'Urwah al-Wuthqa (1919)
Foundational rulings that modern Ja'fari authorities follow.
Classical Texts
Accreditation
Trust is earned, not claimed. That's why we are actively pursuing formal accreditation for zakat calculation compliance and estate planning compliance. We want our methodology externally validated by recognized bodies, not just internally documented, because you deserve that confidence.
In the meantime, every calculation is transparently sourced to the scholars and institutions listed above. You can verify any ruling against its original source. We have nothing to hide.
Important Disclaimers
We believe in being transparent about what we are and what we are not. Here's what you should know:
Not a Fatwa-Issuing Body
We are software engineers, not Islamic scholars. Our tools implement existing scholarly rulings but do not constitute religious verdicts. For personal rulings on your specific circumstances, please consult a qualified scholar.
Not Financial Advice
Nothing on this platform constitutes financial advice. Everything we provide is educational and informational. Please consult a licensed financial advisor for personal financial decisions.
Not Legal Advice
Our estate planning tools are educational and informational. They are not a substitute for a qualified attorney. For legal matters relating to wills, trusts, and inheritance in your jurisdiction, please consult a licensed estate planning attorney.
JazakAllahu Khairan for trusting us with something as important as your ‘ibadah. We take that responsibility seriously, and we're committed to building tools that are worthy of it. If you have questions, feedback, or just want to say salaam, we'd love to hear from you.
Get in touch at summerslice.xyz