Ask a mortgage broker about Islamic home finance and you will usually hear some version of it costs more. That is broadly true, and pretending otherwise does nobody any favours. But the size of the gap is smaller than folklore suggests, it varies enormously by deposit size, and rate alone is the wrong way to measure it. Here is the comparison done properly, using rates the halal providers themselves published, all verified on August 6, 2026.
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The published halal rates, August 2026
| Provider | Product | Rate at crawl | FTV | Product fee |
|---|---|---|---|---|
| Offa | Discounted variable | 5.50% | 65% | GBP 499 |
| Gatehouse | 5-year fixed | 5.63% | 65-80% | GBP 499 |
| Gatehouse | 2-year fixed | 5.68% | 65-80% | GBP 499 |
| Offa | 5-year fixed | 5.75% | 65% | GBP 499 |
| Offa | 2-year fixed | 5.80% | 65-80% | GBP 499 |
| StrideUp | From (banner rate) | 5.99% | up to 90% | GBP 1,249 |
| Gatehouse | 2-year fixed | 6.78% | 95% | GBP 999 |
| Offa | 2-year fixed | 6.90% | 95% | GBP 999 |
Two more data points frame the range. Nomo Bank, which serves GCC residents rather than UK buyers, published 2-year fixed rates from 5.46%, the sharpest in the halal market. And Gatehouse's Green products for EPC A and B rated homes shaved roughly 10 basis points off, from 5.53%. Sources: provider rate cards and factsheets crawled August 6, 2026.
How big is the gap, really?
HalalWallet's provider research describes Gatehouse's rental rates as running roughly 1 to 1.5 percentage points above the cheapest conventional fixes at comparable finance-to-value, a gap sometimes called the Muslim premium. We deliberately do not print a conventional rate table here: conventional pricing moves daily across dozens of lenders, and any number we quoted would be stale within a week. The honest framing is this: if the best conventional 5-year fix available to you is around a point cheaper than Gatehouse's 5.63%, a GBP 200,000 facility costs you very roughly GBP 2,000 more per year in rent than interest, before fees and before tax effects. Run your own numbers with the HalalWallet mortgage calculator against live conventional quotes on the day you shop.
Why the premium exists
Three structural reasons, none of them conspiracy. First, funding: Islamic banks cannot borrow at interest in wholesale markets, so they fund home finance from deposits and Shariah-compliant instruments, which typically cost more. Second, scale: Gatehouse, StrideUp and Offa together write a tiny fraction of the volume of a single high-street lender, so fixed costs spread across fewer customers. Third, competition: with a handful of providers, pricing pressure is gentler. The 2026 entry of Offa's HPP, undercutting rivals at 65% FTV, is what competition arriving looks like.
Where the gap narrows
At high finance-to-value, halal products become more competitive, because conventional lenders also price 95% deals expensively. Gatehouse and Offa both offer 95% FTV at 6.78% and 6.90% respectively (August 6, 2026), with GBP 999 product fees. Conventional 95% fixes carry their own premiums and fees, so a first-time buyer with a 5% deposit faces a materially smaller halal premium than a remortgager with 40% equity. Green homes narrow it further at Gatehouse. And for GCC-resident buyers, Nomo's 5.46% grid is genuinely competitive with what international conventional lenders quote for UK property.
Fees change the answer
Headline rates mislead without fees. The halal market's fee structure at our crawl: Gatehouse charges a GBP 149 application fee for UK residents plus GBP 499 or GBP 999 product fees; StrideUp charges GBP 1,249; Offa GBP 499 to GBP 999. Gatehouse fees cannot be added to the finance amount, so you need the cash at completion. On a 2-year fix, a GBP 750 fee difference is worth roughly 0.19 percentage points per year on a GBP 200,000 facility, enough to reorder the table above. Always compare total cost over the fixed period: rate, times balance, plus every fee.
What you get for the premium
This is where the comparison stops being purely financial. A Home Purchase Plan buys you a structure in which the financier co-owns the asset, certified by named scholars, with published certificates: Gatehouse's board is chaired by Sheikh Nizam Yaquby; StrideUp and Offa are certified and audited by Amanah Advisors under Mufti Faraz Adam. For a household that considers riba a prohibition rather than a preference, the premium is the market price of compliance, and the right response is to minimise it by shopping hard within the halal market, not to pretend it does not exist. The mechanics of what you are buying are in our HPP structure guide.
The tax wrinkle nobody prices in
For owner-occupiers, rent under an HPP and interest under a mortgage are treated alike: neither is deductible, so the comparison is clean. For landlords it is messier. Conventional buy-to-let interest attracts only a basic-rate tax credit for individual landlords, while the financing cost structure of a halal buy-to-let purchase plan should be reviewed with an accountant familiar with Islamic products, because the rent and acquisition components are contractually distinct. Neither this article nor any provider page is tax advice; the point is that the after-tax gap between halal and conventional can differ from the pre-tax gap, in either direction, and a one-hour accountant conversation is cheap against a 25-year commitment. Landlords should start from our halal buy-to-let guide.
Traps to avoid on both sides
- Reversion rates: Gatehouse's standard variable rate was 7.25% at crawl, and Nomo's follow-on rate 6.99%. Drifting past the fixed period is expensive in both markets.
- Comparing a halal 90% product against a conventional 60% product: match the finance-to-value band or the comparison is meaningless.
- Ignoring early payment terms: halal products cap free overpayments (10% a year at Gatehouse) just as conventional fixes do.
- Assuming the premium is fixed forever: Offa's 2026 launch moved pricing at 65% FTV. This market is getting more competitive, not less.
A worked total-cost comparison
Take a GBP 200,000 facility over a 5-year fixed period. At Gatehouse's 5.63% (65 to 80% FTV, GBP 499 product fee, GBP 149 application fee), the first year's rent charge is roughly GBP 11,260 before acquisition payments, and five years of fees add GBP 648. If your best conventional quote were, say, one point lower, the five-year rent-versus-interest difference would be in the region of GBP 9,000 to GBP 10,000 on a slowly amortising balance. That is the honest order of magnitude for a mid-sized facility at a mid-range gap: real money, not ruinous, and highly sensitive to the conventional quote you actually receive, which is why you should price both on the same day rather than trust any published table, including this one.
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Two further effects cut the practical gap. Overpayments: Gatehouse allows 10% additional acquisition each year without charge, so disciplined overpayers shrink the expensive balance faster. And product transfers: Gatehouse offers them at fixed-period end, so the 7.25% SVR is avoidable with a diary reminder. The premium buyers actually pay over a full ownership journey is usually smaller than the headline gap suggests, provided they manage the product actively.
Every halal rate and fee above comes from provider publications crawled on August 6, 2026, and will move. Compare current products at HalalWallet's home financing page, and get a conventional quote the same day if you want a real, dated comparison rather than folklore.