The Halal HSA: Investing Your Health Savings Account Per Shariah

Three tax breaks stack inside a Health Savings Account: deductible going in, no tax on growth, no tax coming out for qualified medical costs. A 401(k) gives you one or two of those. An HSA gives you all three, plus it dodges the 7.65% FICA bite if you fund it through payroll deduction rather than writing a check.

The problem for a Muslim saver is that HSA plumbing is built on interest. The default cash position pays you riba, the standard fund menu is stuffed with bond funds and unscreened index trackers, and almost nobody at your benefits provider has ever been asked about Shariah screening. All of that is workable. Here is what actually has to change and what does not.

The 2026 numbers you are working with

For calendar 2026, the IRS set the HSA contribution cap at $4,400 for self-only coverage and $8,750 for family coverage, with an extra $1,000 catch-up once you turn 55. To contribute at all you have to be covered by a qualifying high deductible health plan, which in 2026 means a deductible of at least $1,700 self-only or $3,400 family, and out-of-pocket exposure capped at $8,500 and $17,000 respectively.

Two catch-up wrinkles that cost people money. The catch-up is per person and has to sit in that person's own HSA, so a couple who are both 55+ need two accounts to claim both $1,000s. And the moment you enroll in Medicare, contributions stop, with Part A backdating up to six months, so anyone working past 65 needs to stop funding the HSA roughly half a year before they file.

Also worth knowing before you get excited: California and New Jersey do not follow the federal treatment. Your HSA earnings and dividends are taxable at the state level there, which changes the math on how aggressively you want to trade inside the account.

Where the riba actually sits

People assume the halal problem in an HSA is the fund menu. The bigger and more persistent one is the cash sweep.

Every HSA custodian parks uninvested contributions somewhere that pays you interest, either an FDIC-insured deposit account or a government money market fund holding Treasury bills and repo. Fidelity's HSA core position, for example, is a money market fund. That income is riba al-nasiah in the most direct form the classical texts describe, a stipulated return on a loan of money, which is what a bank deposit legally is. The prohibition in Quran 2:275-279 is aimed squarely at that. The dollar amounts are small, and smallness does not convert prohibited income into permitted income.

Three practical responses, in the order most people use them:

Sweep it out fast. Set your custodian to auto-invest everything above a minimum cash threshold (Fidelity and Lively both let you set the threshold, often as low as $0 to $100). Contributions land, get swept into funds within a day or two, and the interest accrual window shrinks to almost nothing.

Purify what accrues. Whatever interest posts, calculate it from the year-end statement and give it away without taking a tax deduction for it and without treating it as sadaqah you get reward for. This is the standard disposal position of the AAOIFI Shariah standards and the Fiqh academies: remove the tainted amount to charitable use rather than benefit from it. On a $200 average cash balance at 4% you are talking about roughly $8 a year.

Stop looking for a halal sweep. There is no meaningful mudarabah-based HSA cash account in the US market. Some Islamic institutions offer profit-sharing deposits, but they are not integrated as HSA custodians. Do not burn a month searching for one.

Getting a fund menu you can actually screen

The single most useful thing to know is that you are not stuck with your employer's HSA vendor. Contribute through payroll to whatever the employer chose (that is where the FICA savings live, and only payroll contributions get them), then do a trustee-to-trustee transfer once or twice a year into a custodian you picked. Trustee-to-trustee transfers are unlimited and do not count against the once-per-year rollover rule.

The three that matter:

• Fidelity HSA. No account fee, no investment minimum, full ETF and mutual fund access including fractional shares. This is the default answer for most halal HSA investors purely because you can buy anything.
• Lively. Low cost, brokerage side runs through Schwab, so the same open universe of ETFs.
• HealthEquity. Extremely common as an employer default. The core menu is a short list of conventional funds, but many plans allow a Schwab self-directed brokerage window inside the HSA, which gets you to the ETFs you need.

If your employer plan has no brokerage window and no transfer option, treat it as a holding tank and move the money annually.

What to actually hold

A correction to something you may have read elsewhere, including the earlier version of this article: ISDU and ISDW are not available to you. The iShares MSCI USA Islamic and MSCI World Islamic funds are UCITS products listed in London and Dublin. A US brokerage account, HSA included, cannot buy them, because they do not issue the disclosure documents US rules require of foreign funds sold to retail investors. Anyone recommending them for a US HSA has not tried to place the trade.

The US-listed halal lineup you can actually buy is short:

Ticker	What it holds	Expense ratio
SPUS	S&P 500 constituents passing Shariah industry and financial screens	0.49%
HLAL	FTSE USA Shariah, broader than large cap only	0.50%
SPWO	Developed and emerging markets outside the US, Shariah screened	~0.55%
SPRE	Global REITs screened for Shariah, low-leverage landlords only	~0.55%
AMAGX / AMANX	Amana Growth and Amana Income, actively managed since 1994	~0.91% / 0.94%

SPUS and HLAL overlap heavily at the top (both are dominated by the large US technology and healthcare names that survive a 30% debt screen), so holding both mostly buys you methodology diversification rather than holding diversification. That is a real but modest benefit, since FTSE divides debt by total assets while S&P DJI uses a 36-month average market cap denominator, and those two produce different answers at the margin for a company whose share price just moved a lot. Our screening methodology breakdown walks through why the same company can pass one index and fail another.

A workable structure for a 30-something using the HSA as a long-horizon account: 70% SPUS or HLAL, 20% SPWO, 10% SPRE, and a cash floor of a few hundred dollars. If you would rather hand it to an active manager, AMAGX has the longest halal track record in the US market and costs about double. You can run any of these tickers through our stock and fund screener or line them up side by side in compare before you commit.

Purification does not stop at the cash account

Screened funds still hold companies with small amounts of interest income, which is exactly why the AAOIFI standard tolerates non-compliant revenue below 5% rather than demanding zero. The tolerance is a concession, and the condition attached to it is that you purify the corresponding share of your dividends. SP Funds and Wahed both publish a per-share purification figure annually. Multiply it by your share count, give that amount away, and keep the record.

Here is the HSA-specific trap. You cannot pull money out of the HSA to pay purification or zakat, because neither is a qualified medical expense under IRS Publication 502. A withdrawal for that purpose is ordinary income plus a 20% penalty before age 65. So the purification and zakat get paid from outside money while the HSA balance keeps compounding untouched.

Zakat on a balance you cannot freely touch

Scholars split here, and the split maps onto how they treat retirement accounts generally.

The stricter position, associated with most contemporary fatwa councils, is that an HSA is your property, you have legal access to it, and access with a tax penalty is still access. Zakat is due annually on the zakatable portion.

The more lenient position treats funds subject to a penalty and a tax as not fully in your possession (milk tamm), and either defers zakat until withdrawal or assesses it on the net-of-penalty value. If you follow this view on your 401(k), it is inconsistent to switch for the HSA, which is less restricted than a 401(k), not more.

Either way, the base is not your whole balance if you hold equity funds. Under the AAOIFI approach you zakat the underlying zakatable assets (cash, receivables, inventory) rather than the market value of long-term holdings. On a $50,000 SPUS position with an assumed zakatable asset ratio around 25%, you would be looking at 2.5% of $12,500, roughly $312. The ratio is an estimate that moves with index composition, and the simpler alternative used by many is to pay 2.5% on the full market value if you intend to sell the holdings. Both are defended by serious scholars. Our portfolio tools can give you the aggregate position value to work from.

The cross-faith view, briefly

A Christian investor using the BRI framework has the same cash-sweep issue reframed: interest itself is fine, so the deposit account is unobjectionable, and the six BRI screening categories (abortion, pornography, anti-family entertainment, alcohol, gambling, tobacco) apply to the fund holdings instead. A USCCB-guided Catholic investor gets a different fund shortlist again, weighted toward abortifacient and weapons exclusions. For an Orthodox Jewish saver, the HSA cash account raises real ribbis questions when the custodian is a Jewish-owned institution, which is the situation a heter iska is designed to address, and typically a non-issue with a conventional US bank. LDS investors will find nothing in the HSA structure that conflicts with the Church's teachings, though long-standing LDS counsel against speculation argues for the index approach over trading inside the account.

The move that makes this worth the trouble

Pay routine medical bills from your checking account, scan the receipts, and never touch the HSA. There is no deadline for reimbursement, so a 2026 dental bill can be reimbursed tax-free in 2056 as long as the expense came after the account was opened and you kept proof. Meanwhile the balance compounds.

Run the family maximum for 30 years at a 7% assumed return and you land somewhere in the low-to-mid $800,000s, before accounting for the fact that the contribution cap itself gets indexed upward each year. At 65 the penalty disappears, non-medical withdrawals are taxed like a traditional IRA, and your receipt folder converts a chunk of it back to fully tax-free. Medicare Part B and Part D premiums also become qualified expenses at that point, which quietly gives you a second tax-free drain on the account in retirement.

The Bottom Line

The HSA works for a halal saver with two adjustments: cut the cash balance to near zero so the interest accrual is trivial and purifiable, and get yourself to a custodian (Fidelity, Lively, or a HealthEquity brokerage window) where you can buy SPUS, HLAL, SPWO, SPRE or the Amana funds instead of the default menu. The one thing to remember is that purification and zakat have to be funded from outside the account, because pulling HSA money for either one is a non-qualified withdrawal that triggers income tax plus a 20% penalty.

This is educational research rather than a religious ruling or personalized investment advice, so confirm the zakat treatment and purification method with a qualified scholar and the tax mechanics with your own advisor.