--- title: "HMO Mortgage Calculator UK — ICR, Rental Coverage & Lender Rates 2026 | First Rung Now" description: "HMO mortgage calculator and guide: how lenders size HMO loans using rental coverage, stressed rates and ICR; current rates, leading specialist lenders and ..." lang: en-GB json-ld: | [ { "@context": "https://schema.org", "@type": "Organization", "name": "First Rung Now", "url": "https://firstrungnow.com", "logo": { "@type": "ImageObject", "url": "https://firstrungnow.com/logo-512.png", "width": 512, "height": 512 }, "description": "Independent UK mortgage education and broker matching service.", "address": { "@type": "PostalAddress", "addressCountry": "GB" } }, { "@context": "https://schema.org", "@type": "WebSite", "name": "First Rung Now", "url": "https://firstrungnow.com" }, { "@context": "https://schema.org", "@type": "Article", "headline": "HMO Mortgage Calculator", "description": "HMO mortgage calculator and guide: how lenders size HMO loans using rental coverage, stressed rates and ICR; current rates, leading specialist lenders and HMO licence implications.", "author": { "@type": "Organization", "name": "First Rung Now" }, "publisher": { "@type": "Organization", "name": "First Rung Now", "url": "https://firstrungnow.com" }, "mainEntityOfPage": "https://firstrungnow.com/hmo-mortgage-calculator", "datePublished": "2026-06-15", "dateModified": "2026-06-15", "inLanguage": "en-GB" }, { "@context": "https://schema.org", "@type": "BreadcrumbList", "itemListElement": [ { "@type": "ListItem", "position": 1, "name": "Home", "item": "https://firstrungnow.com/" }, { "@type": "ListItem", "position": 2, "name": "Mortgage Guides", "item": "https://firstrungnow.com/mortgage-guides" }, { "@type": "ListItem", "position": 3, "name": "HMO Mortgage Calculator", "item": "https://firstrungnow.com/hmo-mortgage-calculator" } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What is an HMO mortgage calculator?", "acceptedAnswer": { "@type": "Answer", "text": "An HMO (House in Multiple Occupation) mortgage calculator estimates the maximum loan you can secure on an HMO property based on rental income, lender ICR (Interest Coverage Ratio) requirements and stressed interest rate. HMOs typically generate higher rental income per property than single-let BTLs, so the calculator usually outputs a larger loan than a vanilla BTL calculator would." } }, { "@type": "Question", "name": "How is HMO mortgage affordability calculated?", "acceptedAnswer": { "@type": "Answer", "text": "Lenders use the property's gross rental income (sum of all room rents) against a stressed mortgage interest cost. The required Interest Coverage Ratio is typically 125%–145% — meaning rent must be 1.25x to 1.45x mortgage interest at the lender's stress rate (often 5.5%–7%). HMO room rents are usually higher per square foot than single-let rents, which is why HMOs deliver more borrowing." } }, { "@type": "Question", "name": "What HMO size requires an HMO mortgage rather than a BTL?", "acceptedAnswer": { "@type": "Answer", "text": "Strictly, any property let to 3+ unrelated tenants forming more than one household is an HMO under English law. Mortgages categorise differently: a 'small HMO' (3–4 tenants) often qualifies for standard BTL mortgages from some lenders. 'Large HMOs' (5+ tenants, requiring mandatory HMO licence) almost always need a specialist HMO mortgage." } }, { "@type": "Question", "name": "What rates do HMO mortgages charge?", "acceptedAnswer": { "@type": "Answer", "text": "HMO mortgage rates typically sit 0.25%–0.75% above equivalent BTL rates for single-let properties. In mid-2026 the range is roughly 5.50%–6.50% for 5-year fixed HMO products at 75% LTV. Specialist lenders (Paragon, Kent Reliance, Foundation, Precise) dominate this space — high-street BTL ranges generally cap at small HMOs only." } }, { "@type": "Question", "name": "What's a realistic HMO yield?", "acceptedAnswer": { "@type": "Answer", "text": "Gross yields on HMOs commonly range from 8%–15%, materially higher than single-let BTLs (typically 5%–8%). Net yields after the higher management costs, void factors, more frequent tenant turnover, and HMO licensing fees are typically 6%–10%. The yield premium reflects the operational complexity and higher tenant turnover." } }, { "@type": "Question", "name": "Which lenders are best for HMO mortgages in 2026?", "acceptedAnswer": { "@type": "Answer", "text": "Specialist HMO names dominate: Paragon Bank, Kent Reliance, Foundation Home Loans, Precise Mortgages, Landbay, Aldermore, and Vida Homeloans. Some building societies (Bath, Furness, Mansfield) lend on small HMOs at competitive rates. Each lender has different criteria on room count, licence requirements and minimum property type." } } ] } ] --- [Skip to content](#main) [London 020 8088 2997 ](tel:02080882997)[National 0333 567 1185 ](tel:03335671185) [![First Rung Now](/assets/logo-mark-CNo3p3DP.png) First Rung Now UK Mortgage Guides ](/) - Mortgages - Remortgages - Buy To Let - Bad Credit - Calculators - Guides - [Find a Broker](/find-a-mortgage-broker) - [About](/about) [London 020 8088 2997 ](tel:02080882997)[National 0333 567 1185 ](tel:03335671185) [Speak to a Vetted Broker](/find-a-mortgage-broker) 1. [Home](/) 2. [Mortgage Guides](/mortgage-guides) 3. HMO Mortgage Calculator UK Mortgage Guide # HMO Mortgage Calculator: Sizing Your Loan in 2026 An HMO mortgage calculator does the same job as a standard buy-to-let calculator but accounts for the higher rental income and tougher operational profile that defines a House in Multiple Occupation. HMOs typically deliver gross yields 50%–100% higher than single-let BTLs, which means the lender will lend more against the same property value. But the criteria are stricter, rates are higher, and the lender pool narrows substantially. This guide walks through exactly how the HMO mortgage maths work, which UK lenders dominate the market, and the licensing and operational considerations that decide whether the deal stacks up. First Rung Now Editorial Updated 15 June 2026 7 min read On this page 1. [Key takeaways](#key-takeaways) 2. [How HMO mortgage affordability is calculated](#how-hmo-mortgage-affordability-is-calculated) 3. [HMO classification and what each lender requires](#hmo-classification-and-what-each-lender-requires) 4. [Specialist lenders in detail](#specialist-lenders-in-detail) 5. [HMO licensing and how it affects the mortgage](#hmo-licensing-and-how-it-affects-the-mortgage) 6. [HMO yield versus single-let yield](#hmo-yield-versus-single-let-yield) 7. [Operational reality of HMO ownership](#operational-reality-of-hmo-ownership) 8. [Speak with a vetted mortgage broker about HMO mortgages](#speak-with-a-vetted-mortgage-broker-about-hmo-mortgages) 9. [Frequently asked questions](#frequently-asked-questions) 10. [What is an HMO mortgage calculator?](#what-is-an-hmo-mortgage-calculator) 11. [How is HMO mortgage affordability calculated?](#how-is-hmo-mortgage-affordability-calculated) 12. [What HMO size requires an HMO mortgage rather than a BTL?](#what-hmo-size-requires-an-hmo-mortgage-rather-than-a-btl) 13. [What rates do HMO mortgages charge?](#what-rates-do-hmo-mortgages-charge) 14. [What's a realistic HMO yield?](#whats-a-realistic-hmo-yield) 15. [Which lenders are best for HMO mortgages in 2026?](#which-lenders-are-best-for-hmo-mortgages-in-2026) 16. [Related guides](#related-guides) 17. [Best HMO Mortgage Lenders](#best-hmo-mortgage-lenders) 18. [BTL Interest-Only Calculator](#btl-interest-only-calculator) 19. [Buy to Let Mortgages](#buy-to-let-mortgages) ### Calculators — related reads Interactive tools for borrowers and landlords. - [BTL interest-only calculator Stress-test ICR at 125%–145% and 5.5%–7% to find your maximum BTL loan. ](/buy-to-let-interest-only-calculator) - [RIO mortgage calculator Estimate maximum RIO loan and lifetime interest using property value, LTV and rate. ](/retirement-interest-only-mortgage-calculator) - [JBSP mortgage calculator Combined-income affordability when a parent supports the mortgage but stays off the title. ](/jbsp-mortgage-calculator) - [Mortgage buyout calculator Work out equity split, affordability and SDLT on a divorce or separation buyout. ](/mortgage-buyout-calculator-uk) - [Ltd company mortgage calculator ICR-driven max SPV BTL loan with worked 2026 examples. ](/ltd-company-mortgage-calculator) Explore the hubs [Mortgages explained](/mortgages)[Remortgages](/remortgages)[Buy-to-let mortgages](/buy-to-let)[Bad credit mortgages](/bad-credit-mortgages)[Mortgage calculators](/mortgage-calculators)[All mortgage guides](/mortgage-guides)[Find a mortgage broker](/find-a-mortgage-broker) ## Key takeaways - HMO mortgages are sized by combining all room rents against stressed mortgage interest at 125%–145% ICR. - HMO rates typically run 0.25%–0.75% above equivalent single-let BTL rates. - Paragon, Kent Reliance, Foundation and Precise dominate the specialist HMO lender space. - Small HMOs (3–4 tenants) sometimes qualify for standard BTL products; large HMOs (5+) need specialist lending. - Gross HMO yields of 8%–15% are realistic; net yields after costs typically 6%–10%. ## How HMO mortgage affordability is calculated Want a vetted broker to help with How HMO mortgage affordability is calculated? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) Like any BTL, an HMO mortgage is sized based on rental income, not personal salary. The lender applies an Interest Coverage Ratio (ICR) — typically 125% for basic-rate taxpayers and limited company applicants, or 145% for personal-name higher-rate taxpayers. The ICR is the multiple of mortgage interest that the rental income must cover at a stressed interest rate. The stressed rate is usually the higher of the actual product rate plus 2% or a floor (often 5.5%–7%). For 5-year fixed products, lenders typically use the actual pay rate without further stress, which is more generous. Worked example: an HMO with 6 rooms each rented at £550 per month delivers £3,300 gross monthly rent (£39,600 a year). Using a 125% ICR at a 6% stressed rate, the calculation is: maximum monthly interest = £3,300 / 1.25 = £2,640. Maximum loan = (£2,640 × 12) / 6% = £528,000. That's the lender's rental-coverage cap. Separately, the lender will cap LTV at 75% of the property value. If the property values at £600,000, 75% LTV is £450,000 — which is the binding constraint here. The applicant could borrow £450,000 (the LTV cap), not the £528,000 (the rental cap) — because LTV is the lower number. ## HMO classification and what each lender requires Calculators · keep reading - [BTL interest-only calculator Stress-test ICR at 125%–145% and 5.5%–7% to find your maximum BTL loan. ](/buy-to-let-interest-only-calculator) - [RIO mortgage calculator Estimate maximum RIO loan and lifetime interest using property value, LTV and rate. ](/retirement-interest-only-mortgage-calculator) Browse the full hub: [Mortgage calculators](/mortgage-calculators) Want a vetted broker to help with HMO classification and what each lender requires? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) UK law defines an HMO as a property let to 3+ unrelated tenants forming more than one household with shared facilities (kitchen, bathroom). A "large HMO" — requiring mandatory HMO licensing — is one with 5+ tenants from 2+ households. Additional or selective HMO licensing rules apply in many local authorities for smaller HMOs too. From a mortgage perspective, lenders broadly split into three groups. Group one is high-street BTL lenders (BM Solutions, TMW) that accept "small HMOs" of up to 4 bedrooms let on standard ASTs but won't consider larger HMOs. Group two is specialist BTL lenders (Aldermore, Coventry for Intermediaries) that lend on HMOs up to 6 bedrooms with appropriate licensing. Group three is the dedicated HMO specialists (Paragon, Kent Reliance, Foundation, Precise, Landbay, Vida) that lend on HMOs from 6 to 12+ bedrooms with sophisticated criteria. ## Specialist lenders in detail Want a vetted broker to help with Specialist lenders in detail? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) **Paragon Bank** is the largest UK HMO lender. Their criteria are flexible, they handle limited company SPV applications smoothly, and they're comfortable with experienced HMO landlords scaling portfolios. Rates are competitive within the specialist segment. **Kent Reliance** (part of OneSavings Bank) competes hard on HMO mortgages, particularly for first-time HMO landlords transitioning from single-let BTLs. They offer products on both personal-name and SPV structures. **Foundation Home Loans** specialises in complex BTL and HMO cases. They take a more pragmatic view on properties needing refurbishment or planning consent for HMO conversion. **Precise Mortgages** (also part of OneSavings) is well-known for serving portfolio landlords and accepts more complex HMO structures including those with limited company ownership and multiple shareholders. **Landbay** is a specialist BTL lender with strong HMO criteria and competitive pricing on standard HMO property types. **Aldermore** bridges between mainstream and specialist — competitive on smaller HMOs (4–6 bedrooms) with reasonable rates. ## HMO licensing and how it affects the mortgage Calculators · keep reading - [JBSP mortgage calculator Combined-income affordability when a parent supports the mortgage but stays off the title. ](/jbsp-mortgage-calculator) - [Mortgage buyout calculator Work out equity split, affordability and SDLT on a divorce or separation buyout. ](/mortgage-buyout-calculator-uk) Browse the full hub: [Mortgage calculators](/mortgage-calculators) Want a vetted broker to help with HMO licensing and how it affects the mortgage? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) Mandatory HMO licensing applies nationally to any HMO with 5+ tenants from 2+ households. The licence is issued by the local authority and costs typically £500–£1,200 for 5 years. Licensing requires the property to meet specific safety and space standards: minimum room sizes, fire safety provisions, gas and electrical certification, and management standards. Additional and selective licensing schemes apply in many local authorities to smaller HMOs and single-let rentals respectively. Birmingham, Liverpool, Newcastle, Manchester, parts of London and many smaller councils operate additional licensing. Check the local authority's scheme before purchasing — licensing requirements vary substantially. From the lender's perspective, the licence must be in place (or there must be a clear plan to obtain it) before the mortgage will offer. Most specialist HMO lenders will lend on properties where licensing is pending, provided there's a credible application in progress. ## HMO yield versus single-let yield Want a vetted broker to help with HMO yield versus single-let yield? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) HMOs typically deliver materially higher gross yields than single-let BTLs because room rents add up to more than a single household rent. A 4-bedroom house in Sheffield might rent to a family for £900 a month (yield of 5.5% on a £200,000 property). The same house converted to a 5-bedroom HMO (using the lounge as a fifth bedroom) might rent at £450 per room — £2,250 gross monthly (yield of 13.5%). But net yields tell a different story. HMOs face higher management costs (often 12%–15% versus 10% for single-lets), higher void factors (rooms turn over more frequently than family homes), higher utility costs (typically bills-included), higher maintenance from heavier wear and tear, council tax (often payable by landlord on HMOs in some councils), and licensing costs. Net yields of 6%–10% are realistic for well-run HMOs versus 4%–5% for single-lets. ## Operational reality of HMO ownership Calculators · keep reading - [Ltd company mortgage calculator ICR-driven max SPV BTL loan with worked 2026 examples. ](/ltd-company-mortgage-calculator) - [Business property mortgage calculator Size a UK commercial mortgage using LTV, DSCR and company accounts. ](/business-property-mortgage-calculator) Browse the full hub: [Mortgage calculators](/mortgage-calculators) Want a vetted broker to help with Operational reality of HMO ownership? Free FCA-regulated introduction. We carefully check the broker matches your scenario — no pressure, no upfront fees. [Match me with a broker](/find-a-mortgage-broker) HMOs are the most operationally demanding form of UK rental property. Tenant turnover is high (typical room tenancy is 9–18 months versus 24–36 months for family homes), maintenance demands are constant (more occupants, more shared facilities), and tenant disputes require active management. Most HMO investors use specialist HMO letting agents or build their own management capability. Self-managing more than 1–2 small HMOs from a distance is rarely sustainable. The financial rewards of well-run HMOs can be substantial — gross yields 2x single-lets, leverage that's manageable, and cashflow that supports portfolio scaling — but only when the operational side is properly resourced. The most common first-time HMO investor mistake is buying for the yield without understanding the management workload. Your home may be repossessed if you do not keep up repayments on your mortgage. First Rung Now is not FCA authorised or regulated; we introduce consumers to FCA-regulated mortgage brokers. Nothing in this article is financial advice. Vetted UK Broker Match ### Speak with a vetted mortgage broker about HMO mortgages Free, no-obligation introduction to an FCA-regulated adviser with experience in your specific scenario. We've done the due diligence so you don't have to. - FCA-regulated only - Typical reply in 1 working day - No upfront fees [Match me with a broker](/find-a-mortgage-broker) ## Frequently asked questions ### What is an HMO mortgage calculator? ### How is HMO mortgage affordability calculated? ### What HMO size requires an HMO mortgage rather than a BTL? ### What rates do HMO mortgages charge? ### What's a realistic HMO yield? ### Which lenders are best for HMO mortgages in 2026? ## Related guides [ ### Best HMO Mortgage Lenders Detailed lender-by-lender HMO comparison. Read guide ](/best-hmo-mortgage-lenders)[ ### BTL Interest-Only Calculator Stress-test ICR for standard buy-to-let mortgages. Read guide ](/buy-to-let-interest-only-calculator)[ ### Buy to Let Mortgages BTL fundamentals — SPV, ICR, portfolio rules. Read guide ](/buy-to-let) First Rung Now Independent UK mortgage education and broker matching. We don't sell mortgages — we help you understand them, then connect you with vetted advisers. 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