Are Privacy Coins Halal? Monero, Zcash and the Law

Monero and Zcash both pass our screen. Privacy coins are halal, and the objection most Muslims raise against them is not a Shariah objection at all.

It is a legal one. Keeping those two apart is most of the work in this article.

The question underneath the question

Nobody asking this is worried about riba in the protocol. There isn't any. What they mean is closer to: is there something wrong with holding money nobody can trace?

Look at the assumption sitting inside that. It treats being financially visible as the neutral default and privacy as the thing needing a defence. That assumption is about eighty years old, and it is not an Islamic one.

Concealment is closer to a virtue

Islam does not treat financial privacy as suspect. In several places it treats concealment as the better of two lawful options.

Al-Baqarah 2:271: "If you disclose your charitable expenditures, they are good; but if you conceal them and give them to the poor, it is better for you." The hidden version is the superior one there, not the merely tolerated one.

The Prophet ﷺ described seven whom Allah will shade on a day when there is no shade but His, and among them is a man who gives in charity so secretly that his left hand does not know what his right hand has given (Bukhari 660).

Then there is the ordinary prudence the tradition takes for granted. Guarding against the evil eye. Not parading wealth. Not humiliating the person you gave to. None of that adds up to a rule that your balance should be public.

So when someone tells you a private transaction is inherently suspicious, they are importing a standard that has to be argued for. It doesn't arrive pre-approved.

What these two coins actually do

Worth being precise, because most writing on this subject rules on "anonymous money" in the abstract and never touches a mechanism.

Monero hides three things on every transaction, by default, with no way to switch it off. Ring signatures mix your real input with decoys, so an observer cannot tell which one moved. Stealth addresses generate a fresh one-time address for every payment, so the address you published never appears on the chain. RingCT hides the amount. What survives is a ledger anyone can verify for soundness and nobody can read for identity.

Its supply is not capped the way Bitcoin's is. In May 2022 the main emission curve ran out and Monero moved to a tail emission of 0.6 XMR per block, continuing indefinitely so miners keep getting paid. That sounds like a property problem until you read what the property test actually asks for. It asks for ascertainable supply, not fixed supply. A schedule anyone can read and nobody can change at will is ascertainable. Monero is Halal.

Zcash made the opposite design choice, and it is the more interesting one for fiqh. Privacy is optional. There are transparent addresses that behave exactly like Bitcoin's, and shielded addresses that use zero-knowledge proofs to validate a transaction without revealing sender, receiver or amount.

And then there is the feature that never comes up in these discussions: viewing keys. A Zcash holder can hand a read-only key to an accountant, an auditor, a court or a spouse, and that person can read the shielded transactions without gaining any ability to spend a single coin.

Selective disclosure, built into the protocol.

Which is not a small thing, because the strongest version of the objection to privacy coins is that they let you hide from people with a legitimate claim to know. Zcash answers that one in code. Zcash is Halal.

Why both clear the screen

Our framework runs three layers, and neither coin needs a generous reading to get through any of them.

At the infrastructure layer, both are their own proof-of-work Layer 1s. Neutral, general-purpose payment networks, with no derivatives venue inside consensus and no lending market bolted onto the chain.

At the activity layer, the core function is a medium of exchange. No interest-bearing contracts anywhere in either protocol, and no native yield paid out of somebody else's borrowing.

At the property layer, both tokens are recognised mal: ascertainable supply, self-custodied, transferable, and treated as wealth by enough people to establish urf.

That is the same reasoning that gets Bitcoin through. Adding a privacy feature to a payment network does not add a prohibited mechanism to it.

But criminals use it

They do. So let me take the objection at its strongest rather than the version that is easy to knock down.

Cash is the most widely used instrument in crime in the history of money, and no scholar has ruled cash impermissible. Nobody argues the knife maker carries the sin of a stabbing, or that the man who sold the getaway car committed the robbery. Islamic law puts liability on the actor.

The classical discussion closest to this is selling grapes to a man you know intends to make wine, and the schools genuinely differ on it. But notice what they differ about: the seller's knowledge of that specific buyer's specific intent. Not the general possibility that somebody, somewhere, might misuse a category of thing. Holding Monero is not selling anything to anyone.

To make the objection land you would have to show that the network's dominant use is unlawful and that lawful use is marginal. That claim gets asserted often and evidenced rarely.

There is a real policy debate about whether states should permit these networks, and I have no problem with a Muslim holding a firm view on it. Just be clear with yourself that it is a policy view. Dressing a policy preference as a fatwa is how bad rulings get made.

Where the actual problem is

Here is the part that changes the answer for a lot of readers, and it has nothing to do with privacy.

Mufti Muhammad Abu-Bakar set out a three-tier jurisdictional framework in his 2018 Blossom Finance paper. Where a government has banned a cryptocurrency, dealing in it is impermissible. Where regulators are silent or cautious, it is permissible. Where they have accepted it, it is clearly permissible.

Privacy coins are the one corner of this market where tier one is common.

Japan's regulator pushed them off licensed exchanges back in 2018. South Korea prohibited them on domestic exchanges when its amended reporting law took effect in March 2021. Dubai's virtual asset regulator bars licensed firms from dealing in anonymity-enhanced cryptocurrencies at all, which will matter more than the rest to a good number of people reading this. Binance delisted Monero in February 2024.

So the honest answer has two halves. The asset is sound. Whether you may buy it depends on where you are standing, and for a Muslim in a jurisdiction that has prohibited these, the answer is no. Not because of anything inside the protocol, but because obedience to lawful authority in matters of public order is itself a fiqh obligation, and walking your wealth into a seizure is not something the Shariah encourages.

That is not the framework contradicting itself. Legality feeds the ruling for every asset on our list. Privacy coins are simply where it bites hardest.

The zakat question you expect me to dodge

If nobody can see your holdings, what stops you from skipping zakat on them?

Nothing. And nothing ever did.

Zakat has been self-assessed since it was legislated. No inspector counted a merchant's inventory in Madinah, nobody audited buried gold, and the whole institution runs on the assumption that a Muslim reports honestly on wealth that no one else can see. Cash in a floor safe has the exact property people find alarming about Monero, and it has never troubled anyone.

A chain that hides your balance from an analytics firm hides nothing from Allah. Your coins are zakatable at market value on your zakat date like every other tradeable asset, and the calculation doesn't change.

If anything Zcash makes proving it easier than cash does. Hand over a viewing key and the audit is finished.

What I would still be careful about

One part of this I hold with less confidence than the rest, and I would rather name it than let it sit under the article unmentioned.

A coin whose history you cannot see is a coin whose history you cannot clear. If the XMR you bought was stolen from someone in 2023, you will never know, and neither will anyone else. Buying property you know to be stolen is an invalid sale in fiqh.

My reading is that this doesn't reach you. The default presumption is that a seller owns what he sells, you are not obliged to investigate absent a specific indication of theft, and an untraceable ledger removes the indication rather than creating one. I am fairly confident in that. I am not certain, and I have not seen a contemporary scholar address the fungibility point head on, which is the kind of gap I would rather flag than paper over.

The remaining risks are practical rather than Shariah. Delistings have made these harder to sell than they were five years ago, and thin liquidity is a genuine cost you carry.

So, are privacy coins halal

Yes. Monero and Zcash both pass, and they pass on the same reasoning that clears any proof-of-work payment network: neutral infrastructure, no interest, no wager, and a token that qualifies as property.

Privacy is not the defect people assume. The tradition is more comfortable with concealed wealth than the modern financial system is, and the discomfort readers bring to this question is almost always borrowed from somewhere other than fiqh.

What you should actually check is your own jurisdiction. Look up whether these are legal where you live before you look up whether they are halal, because for once the second question is the easy one.