--- title: "£300k Home Loan UK — Salary, Deposit & Monthly Cost (2026) | First Rung Now" description: "£300,000 home loan in the UK: salary required, monthly repayments, deposit needed, eligibility, stamp duty and how to structure the application for the sha..." 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": "300k Home Loan", "description": "£300,000 home loan in the UK: salary required, monthly repayments, deposit needed, eligibility, stamp duty and how to structure the application for the sharpest rates.", "author": { "@type": "Organization", "name": "First Rung Now" }, "publisher": { "@type": "Organization", "name": "First Rung Now", "url": "https://firstrungnow.com" }, "mainEntityOfPage": "https://firstrungnow.com/300k-home-loan", "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": "£300k Home Loan", "item": "https://firstrungnow.com/300k-home-loan" } ] }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "What salary do I need for a £300,000 mortgage?", "acceptedAnswer": { "@type": "Answer", "text": "Most UK lenders use a 4.5x income multiple, meaning a combined household income of around £66,700 supports a £300,000 mortgage. Some lenders stretch to 5x or 5.5x for higher earners, professionals, or strong affordability — so £55,000–£60,000 can be enough in the right circumstances. Affordability assessment matters more than the raw multiple." } }, { "@type": "Question", "name": "What is the monthly repayment on a £300k mortgage?", "acceptedAnswer": { "@type": "Answer", "text": "On a 25-year capital and interest repayment basis at 4.50% interest, the monthly payment is approximately £1,667. At 5.00% it rises to £1,754, and at 5.50% it's £1,842. Stretching the term to 30 years at 4.50% reduces the monthly to £1,520 but adds roughly £45,000 of total interest over the life of the mortgage." } }, { "@type": "Question", "name": "How much deposit do I need for a £300,000 home loan?", "acceptedAnswer": { "@type": "Answer", "text": "Most competitive rates require 10%–15% deposit (£30,000–£45,000 on a £300,000 purchase). 5% deposits are possible — typically through 95% LTV schemes including the Mortgage Guarantee Scheme — but rates are higher and choice is narrower. A 25% deposit unlocks the sharpest rates and widest lender panel." } }, { "@type": "Question", "name": "Can I get a £300k mortgage on a single income?", "acceptedAnswer": { "@type": "Answer", "text": "Yes if your income supports it. A single income of around £67,000 typically passes 4.5x affordability. Professionals (doctors, lawyers, accountants) can sometimes access 5.5x multiples, which brings the required single income down to around £55,000. Self-employed applicants will need 2–3 years of accounts." } }, { "@type": "Question", "name": "What stamp duty applies on a £300,000 home purchase?", "acceptedAnswer": { "@type": "Answer", "text": "For a first-time buyer, stamp duty on a £300,000 purchase is £0 (full relief up to £300,000). For a home-mover replacing a main residence, it's £2,500 (5% on the £50,000 above the £250,000 threshold). For a second home or BTL, an additional 5% surcharge applies on top, bringing it to £17,500." } }, { "@type": "Question", "name": "Is £300,000 a lot to borrow in 2026?", "acceptedAnswer": { "@type": "Answer", "text": "It's around the UK national average mortgage size for purchases outside London. Average loan sizes in London and the South East run higher, often £350,000–£500,000+; in the North and Midlands £300,000 is above average. Affordability stress tests are the main constraint, not lender appetite to lend the amount itself." } } ] } ] --- [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. £300k Home Loan UK Mortgage Guide # £300,000 Home Loan: What You Need to Borrow It A £300,000 home loan sits close to the UK average mortgage size for a residential purchase outside London — common enough that most lenders price it sharply, but large enough that affordability, deposit and rate decisions materially shape your monthly cost and lifetime interest. This guide breaks down exactly what salary you'll need, the realistic monthly repayment at current rates, the deposit thresholds that unlock the sharpest products, and how stamp duty and stress tests apply. It's written for buyers actively planning around the £300k loan amount, not as a generic mortgage explainer. First Rung Now Editorial Updated 15 June 2026 7 min read On this page 1. [Key takeaways](#key-takeaways) 2. [The salary you actually need](#the-salary-you-actually-need) 3. [What the monthly payment actually looks like](#what-the-monthly-payment-actually-looks-like) 4. [Deposit thresholds that change the rate](#deposit-thresholds-that-change-the-rate) 5. [How stress tests interact with the £300k figure](#how-stress-tests-interact-with-the-300k-figure) 6. [Stamp duty and other up-front costs](#stamp-duty-and-other-up-front-costs) 7. [How to structure your application for the best outcome](#how-to-structure-your-application-for-the-best-outcome) 8. [Speak with a vetted mortgage broker about a £300,000 mortgage](#speak-with-a-vetted-mortgage-broker-about-a-300000-mortgage) 9. [Frequently asked questions](#frequently-asked-questions) 10. [What salary do I need for a £300,000 mortgage?](#what-salary-do-i-need-for-a-300000-mortgage) 11. [What is the monthly repayment on a £300k mortgage?](#what-is-the-monthly-repayment-on-a-300k-mortgage) 12. [How much deposit do I need for a £300,000 home loan?](#how-much-deposit-do-i-need-for-a-300000-home-loan) 13. [Can I get a £300k mortgage on a single income?](#can-i-get-a-300k-mortgage-on-a-single-income) 14. [What stamp duty applies on a £300,000 home purchase?](#what-stamp-duty-applies-on-a-300000-home-purchase) 15. [Is £300,000 a lot to borrow in 2026?](#is-300000-a-lot-to-borrow-in-2026) 16. [Related guides](#related-guides) 17. [UK Mortgages Overview](#uk-mortgages-overview) 18. [Mortgage Deals at 85% LTV](#mortgage-deals-at-85-ltv) 19. [MIP and Your Deposit](#mip-and-your-deposit) ### First-time buyers — related reads MIPs, deposits, schemes and the UK buying process. - [Does an MIP include your deposit? Why your MIP is the loan only, and how to work out your real purchase budget. ](/mortgage-in-principle-deposit) - [House buying timeline What actually happens — and how long it takes — between offer accepted and keys. ](/house-buying-timeline) - [Help to Buy calculator Equity loan repayment maths and the schemes that replaced Help to Buy in England. ](/help-to-buy-calculator-mortgage) - [No deposit mortgage Every active UK 100% LTV product and the trade-offs that decide fit. ](/no-deposit-mortgage) - [FTB affordability rules 2026 The three affordability tests, stress rates and LTI limits shaping 2026 budgets. ](/first-time-buyer-affordability-rules-2026) 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 - Most lenders require around £66,700 household income for a £300,000 mortgage at 4.5x multiple. - Monthly cost is approximately £1,667–£1,842 over 25 years at typical 2026 fixed rates. - A 15%+ deposit (£45,000) opens up materially sharper rates than 5%–10% products. - Stamp duty is £0 for first-time buyers, £2,500 for home-movers replacing a main residence. - Professional and stretched affordability schemes can lift income multiples to 5.0x–5.5x. ## The salary you actually need Want a vetted broker to help with The salary you actually need? 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) Most UK lenders apply an income multiple ceiling of 4.5x gross household income, with stretches to 5.0x or 5.5x where affordability and credit profile are particularly strong. Under the 4.5x base, a £300,000 mortgage requires combined gross income of around £66,700 — achievable as two earners on £33,000 each, or as a single applicant on £66,700. That multiple is a cap, not a guarantee. The lender's affordability calculation looks at your committed outgoings — credit cards, loans, car finance, childcare, school fees, pension contributions — and works backwards from your net income to determine the maximum sustainable monthly mortgage payment. A household earning £75,000 with £600 a month of car finance and two children in childcare may actually have lower affordability headroom than a £65,000 household with no dependants and no debts. Stretched multiples are available in three main scenarios. Professional schemes for newly qualified doctors, dentists, solicitors, accountants and pilots allow 5.0x–5.5x — bringing the required income down to around £55,000–£60,000. Higher earners (typically £75,000+ individual or £100,000+ joint) often access 5.0x–5.5x at standard high-street lenders based on income alone. And specialist affordability calculators (such as those at Nationwide, Halifax and Kensington) sometimes generate stretched outcomes when fixed outgoings are low. ## What the monthly payment actually looks like First-time buyers · keep reading - [Does an MIP include your deposit? Why your MIP is the loan only, and how to work out your real purchase budget. ](/mortgage-in-principle-deposit) - [House buying timeline What actually happens — and how long it takes — between offer accepted and keys. ](/house-buying-timeline) Browse the full hub: [Mortgages explained](/mortgages) Want a vetted broker to help with What the monthly payment actually looks like? 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) Monthly payments on a £300,000 capital and interest mortgage vary by rate and term. At a 4.50% fixed rate over a 25-year term, the monthly payment is approximately £1,667. At 5.00% it's £1,754, and at 5.50% £1,842. These are roughly the rate range available in mid-2026 across 2- and 5-year fixed products at 75%–85% LTV. Extending the term reduces the monthly payment but increases total interest paid. A 30-year term at 4.50% drops the monthly to £1,520, saving £147 a month — but over the life of the mortgage you pay around £45,000 more in interest. Many buyers compromise by taking a 30-year term initially for cashflow flexibility, then making overpayments (most lenders permit 10% a year penalty-free) to shorten the effective term as income grows. If you're on an interest-only mortgage, the £300,000 monthly cost is purely the interest: £1,125 at 4.50%, £1,250 at 5.00%. But you still owe £300,000 at the end of the term and need a credible repayment vehicle. Interest-only is rarely approved for residential cases without substantial equity, an investment portfolio or property sale plan to clear the capital. ## Deposit thresholds that change the rate Want a vetted broker to help with Deposit thresholds that change the rate? 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) Lenders price mortgages in LTV bands, and crossing into a lower band can save 0.30%–0.80% on the rate — a meaningful sum at £300,000. On a property valued at £375,000 with a £300,000 mortgage (80% LTV), you're in the most competitive bracket of the high-street market. Drop the mortgage to £262,500 (70% LTV) by adding £37,500 more deposit and you typically save another 0.10%–0.25% on rate. The deposit thresholds that move the rate are typically 5%, 10%, 15%, 20%, 25%, 40% and 50%. The biggest single jump in pricing usually sits between 90% and 85% LTV — moving from a 10% to a 15% deposit. If you're close to a threshold, finding the extra £5,000–£10,000 can often save you more in rate over a 5-year fix than the deposit increase costs. ## How stress tests interact with the £300k figure First-time buyers · keep reading - [Help to Buy calculator Equity loan repayment maths and the schemes that replaced Help to Buy in England. ](/help-to-buy-calculator-mortgage) - [No deposit mortgage Every active UK 100% LTV product and the trade-offs that decide fit. ](/no-deposit-mortgage) Browse the full hub: [Mortgages explained](/mortgages) Want a vetted broker to help with How stress tests interact with the £300k figure? 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) Lenders stress-test affordability at a rate higher than the actual product — typically the reversion rate (SVR) plus 1.0%–3.0%, depending on the lender's model. In practice this means a £300,000 mortgage taken at 4.50% is assessed for affordability at a notional rate of 7.5%–9.0%, where the monthly payment would be approximately £2,219 to £2,520. Your household income must support these stressed figures, not the actual lower payment. Stress tests are the most common reason borrowers feel their income multiple is being squeezed. The headline 4.5x multiple is the cap; the real ceiling is whatever the stressed affordability calculation outputs. For some lenders this is more generous than 4.5x; for others, particularly on shorter terms, it tightens to 4.0x or below. ## Stamp duty and other up-front costs Want a vetted broker to help with Stamp duty and other up-front costs? 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) On a £300,000 property purchase, stamp duty (SDLT in England and Northern Ireland) breaks down as: £0 for first-time buyers (full relief up to £300,000); £2,500 for home-movers (5% on the £50,000 above the £250,000 threshold); £17,500 for second-home or BTL purchases (5% surcharge across the whole price plus the standard band). Scotland (LBTT) and Wales (LTT) have different thresholds — check the current rates for your jurisdiction. Add to that legal fees (£1,200–£1,800 typical), survey (£400–£1,200), mortgage product fees (£0–£1,999), valuation (often included or £200–£500), and broker fees if applicable (£0–£995). Total transaction costs on a £300,000 home for a home-mover sit in the £6,000–£9,000 range excluding stamp duty. ## How to structure your application for the best outcome First-time buyers · keep reading - [FTB affordability rules 2026 The three affordability tests, stress rates and LTI limits shaping 2026 budgets. ](/first-time-buyer-affordability-rules-2026) - [High income multiple mortgages Enhanced and professional schemes that lift a first-time buyer budget. ](/first-time-buyer-high-income-multiple-mortgage) Browse the full hub: [Mortgages explained](/mortgages) Want a vetted broker to help with How to structure your application for the best outcome? 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) Three structural decisions tend to matter most for a £300,000 borrower. First, the term: take the shortest term you can comfortably afford, because rate alone doesn't determine total cost. Second, the deposit: getting to the next LTV band materially changes pricing. Third, the lender choice: high-street lenders dominate vanilla cases, but if your income is partly self-employed, contract-based, bonus-heavy or includes rental income, specialist lenders often offer more generous affordability at near-identical rates. A qualified broker is particularly valuable at the £300,000 mark because the income multiple, deposit threshold and affordability stress test combine in ways that aren't obvious. The same client profile can be declined by one lender and offered a £300k mortgage at a sharp rate by another with different criteria. 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 a £300,000 mortgage 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 salary do I need for a £300,000 mortgage? ### What is the monthly repayment on a £300k mortgage? ### How much deposit do I need for a £300,000 home loan? ### Can I get a £300k mortgage on a single income? ### What stamp duty applies on a £300,000 home purchase? ### Is £300,000 a lot to borrow in 2026? ## Related guides [ ### UK Mortgages Overview Deposits, affordability and product types explained. Read guide ](/mortgages)[ ### Mortgage Deals at 85% LTV The pricing band that often suits £300k buyers. Read guide ](/mortgage-deals-85-ltv)[ ### MIP and Your Deposit How a mortgage in principle fits into your budget. Read guide ](/mortgage-in-principle-deposit) 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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