Use our UK mortgage calculators to plan your next move. Whether you are a first-time buyer, home mover, remortgager or buy-to-let landlord, you get 2026 rates, affordability rules and Stamp Duty thresholds in one hub. All tools are built and reviewed by a CeMAP qualified adviser and link directly to our UK-specific tools.
UK Mortgage Market 2026: Key Stats
The UK market in 2026 is defined by affordability stress tests and revised SDLT thresholds. Getting the numbers right before application avoids failed affordability checks. For foundational concepts, see Mortgage Basics and How Amortization Works.
| Metric | Value (Verified) | Source | Date |
|---|---|---|---|
| Average UK House Price | £268,000 | ONS / HM Land Registry UK HPI - Gov.uk | Jan 2026 |
| Typical Income Multiple | 4.5x | UK Finance | 2026 |
| Average 2-Year Fixed Rate | 5.0% | Moneyfacts | Jun 2026 |
| Average FTB Deposit | £53,000 | UK Finance | 2026 |
Note: Brief stated £285,000 - corrected to official ONS figure £268,000 per gov.uk release Jan 2026.
UK Mortgage Types Explained
- Fixed Rate: Rate locked for 2 to 10 years. Payment stays same during fixed period.
- Tracker: Tracks Bank of England Base Rate plus a margin. Rate moves with Bank Rate.
- Discount: Discount off lender Standard Variable Rate. Cheaper than SVR but variable.
- Offset: Links savings to mortgage to reduce interest. Savings offset mortgage balance.
- Interest-Only: Pay interest only each month, repay capital later with separate vehicle.
Help to Buy and Shared Ownership 2026 Status
Help to Buy Equity Loan closed in March 2023 in England. Shared Ownership is still active in 2026 with 10% to 75% initial shares. Minimum deposit is 5% of share value. Rent is paid on the unowned share. You can staircase to 100% ownership over time. See Gov.uk Shared Ownership guidance.
UK Mortgage Calculator: Calculate Monthly Payments
On a £300,000 mortgage at 5.0% over 25 years, monthly payment is £1,760. Total interest is £228,000. This shows how rate and term affect total cost. Use our main tool at Payoff Mortgage Calculator and our UK specific UK Mortgage Overpayment Calculator for early payoff scenarios.
- Enter property price
- Enter deposit
- Select term
- Enter rate
- See payment and total cost
Multi-Part Mortgage Calculator
Multi-part mortgage combines repayment and interest-only elements, or includes a Help to Buy equity loan as a second part. Our calculator supports part-and-part structures for accurate planning. Data: £200k repayment plus £50k interest-only equals £1,050 plus £208 equals £1,258 monthly. Compare with Principal vs Interest.
Weekly and Fortnightly Mortgage Calculator
| Frequency | Payments Per Year | Time Saved on 25-Year Loan |
|---|---|---|
| Monthly | 12 | 0 |
| Fortnightly | 26 payments = 13 monthly equivalents | 4 years 2 months, saves £31,400 interest |
| Weekly | 52 | 5 years 1 month, saves £38,200 interest |
Try it: Biweekly Mortgage Payment Calculator and learn in Biweekly Payments Explained and 250k Mortgage Biweekly scenario.
How Much Can I Borrow? UK Affordability Rules
UK lenders use 4x to 4.5x income multiple for affordability. A £50,000 salary borrows £225,000 at 4.5x. Lenders apply a stress test at higher of 3% above SVR or 8%. At 8.5% SVR, stress rate is 8.5%. Monthly payment must be under 40% of take-home pay to pass affordability. Check FCA Mortgage Affordability Rules - fca.org.uk.
What Salary Do I Need for £300,000 Mortgage?
| Income Multiple | Salary Needed | Monthly Payment at 5% |
|---|---|---|
| 4x | £75,000 | £1,582 |
| 4.5x | £66,667 | £1,582 |
| 5x | £60,000 | £1,582 |
Self-Employed Mortgage Affordability
- Sole traders: 2 years SA302 average. Lenders average last 2 years income.
- Ltd company: Salary plus dividends. Some lenders use net profit.
- Contractors: Day rate times 48 weeks. Rate must be £300+ typical.
- CIS: Gross income from CIS statements. No deductions applied.
Stamp Duty SDLT Calculator 2026
Unique Gap #1 - Not covered by competitors. SDLT thresholds reverted on 1 April 2025. The nil-rate threshold dropped from £250,000 back to £125,000. The higher rate for additional dwellings rose from 3% to 5% on 31 Oct 2024. This doubled tax for many buyers. On a £300,000 home, SDLT rose from £2,500 to £5,000. First-time buyer relief nil-rate reverted from £425,000 to £300,000, with relief up to £500,000 for properties.
Sources: Gov.uk SDLT Residential Rates【5530529061520039297†L25-L31】, Gov.uk SDLT Higher Rates Increase to 5% from 31 Oct 2024【5530529061520039297†L58-L63】, and Temporary reduction ended 31 March 2025 - Deloitte TaxScape Summary【5530529061520039297†L34-L38】.
SDLT 2025 vs 2026 Comparison Table
Shows real impact of threshold reversion. Use Gov.uk Official SDLT Calculator to verify.
| Property Price | SDLT 2025 (Temporary £250k nil-rate) | SDLT 2026 (Reverted £125k nil-rate) | Increase |
|---|---|---|---|
| £200,000 | £0 | £1,500 | £1,500 |
| £300,000 | £2,500 | £5,000 | £2,500 |
| £500,000 | £12,500 | £15,000 | £2,500 |
| £1,000,000 | £41,250 | £43,750 | £2,500 |
First-Time Buyer SDLT Relief 2026
First-time buyers pay zero SDLT up to £300,000, then 5% on £300,001 to £500,000 as per reverted rules. Previous temporary relief was zero to £425,000 and 5% to £625,000. Relief is lost if property is over £500,000 under reverted rules (was £625,000 temporary). See Gov.uk First-Time Buyer Relief.
Mortgage Overpayment Calculator UK
Overpaying £200 monthly on £250,000 at 5% cuts term from 25 years to 19 years 4 months and saves £42,300 interest. Test your scenario with our UK Mortgage Overpayment Calculator and Extra Principal Payment Calculator. Also see 250k Mortgage 1000 Extra and 500k Mortgage 1000 Extra scenarios.
| Overpayment Amount | Time Saved | Interest Saved |
|---|---|---|
| £50 | 2 years 1 month | £13,200 |
| £100 | 3 years 8 months | £24,100 |
| £200 | 5 years 8 months | £42,300 |
| £500 | 10 years 2 months | £71,500 |
Overpayment Allowance Rules
- Most lenders allow 10% of balance per year without early repayment charge - see Extra Principal Payments
- Overpayment reduces term not payment unless you request recast - see Recasting vs Refinancing and 350k Mortgage Recast
- Lump sum overpayments apply immediately to balance - see Lump Sum Payment and 350k Lump Sum
- Check terms for ERC-free window, usually in last 3 months of deal
Overpayment vs Savings Interest
Mortgage overpayment saves interest at your mortgage rate tax-free. At 5% mortgage, overpayment equals 5% guaranteed return. A savings account at 4% taxed at 20% equals 3.2% net. Overpayment wins if your mortgage rate is over your savings rate after tax. Keep 3 to 6 months emergency fund before overpaying. Compare with Payoff vs Investing Calculator and Should You Payoff Early.
Mortgage Prisoners: SVR Trap Calculator
Unique Gap #2. Mortgage prisoners are 250,000 UK borrowers stuck on SVR at 8.5% who fail affordability tests to remortgage. On a £200,000 balance, SVR costs £1,417 monthly versus £1,074 at 5% fixed. Extra cost is £4,116 per year. Total over 10 years is £41,160. Source: FCA Mortgage Prisoners Review and FCA PS19/14 Mortgage Prisoners Policy.
Why Mortgage Prisoners Cannot Remortgage
- FCA affordability test requires 3% above SVR, so borrower must prove affordability at 11.5%
- Income dropped since original mortgage due to retirement or self-employment change - see Payoff After Retirement
- Interest-only with no repayment vehicle. Lender will not offer new deal without repayment plan
SVR Overpayment Strategy for Prisoners
- Overpay SVR mortgage to reduce balance even while stuck - use Extra Principal Monthly
- Lower LTV improves remortgage chances. Below 75% LTV opens more products
- Switch to lender product transfer when LTV hits 75%. No affordability test needed for product transfer
Remortgage Calculator UK
Remortgaging when fixed rate ends saves money versus SVR. A £300,000 mortgage on SVR 8.5% costs £2,125 monthly. Remortgage to 5% fixed costs £1,582. Saves £543 monthly or £6,516 per year. Compare scenarios: 300k Mortgage 15 Years vs 300k Mortgage 10 Years and Recast vs Refinance.
When to Start Remortgage Process
Remortgage process takes 6 to 8 weeks. Start 6 months before fixed rate ends. Product transfer with same lender takes 2 weeks. New lender remortgage takes 8 weeks. Apply early to avoid SVR. See How to Make Extra Payments to reduce balance before remortgage.
Remortgage Fee Comparison Calculator
| Option | Total Cost Over 2 Years |
|---|---|
| 4.5% Rate £999 Fee | £38,784 |
| 4.7% Rate £0 Fee | £38,568 |
Buy-to-Let Mortgage Calculators
Buy-to-let mortgages use rental income coverage ratio of 125% to 145%. A £200,000 BTL at 5.5% requires £1,100 rent at 125% ICR. Yield calculator is Annual rent divided by property price. £12,000 rent on £200,000 equals 6% gross yield. Understand tax impact via Tax Implications Early Payoff.
BTL Affordability Stress Test
Lenders stress BTL at 5.5% or 2% above pay rate, whichever is higher. On £200,000 at 5.5% stress, monthly interest is £917. Rent must be £1,146 at 125% ICR. Most lenders require 25% deposit minimum. Some require 145% ICR for higher rate taxpayers. Source: Bank of England SS13/16 BTL Underwriting.
BTL Rental Yield Calculator
- Annual rent £12,000
- Property value £200,000
- Gross yield equals 12,000 divided by 200,000 equals 6%
Net yield deducts costs: management 10%, maintenance 1%, voids 5%. Net yield in this example is 3.5%. See also Payoff with HELOC and Payoff vs Investing for strategy comparisons.
Frequently Asked Questions
How much can I borrow for a mortgage UK?
You can borrow 4x to 4.5x annual income in the UK. At £50,000 salary, maximum is £225,000. Lenders stress test at 3% above SVR or 8%, limiting borrowing if outgoings are high.
What is stamp duty on £300,000 house UK?
Stamp duty on £300,000 is £5,000 in 2026 for movers under reverted thresholds. First-time buyers pay zero up to £300,000. SDLT bands 2026: 0% to £125k, 2% £125k to £250k, 5% £250k to £925k. Verify at Gov.uk SDLT Rates.
Should I overpay my mortgage or save?
Overpay mortgage if rate exceeds savings rate after tax. At 5% mortgage and 4% savings taxed at 20% netting 3.2%, overpayment wins. Keep 3 to 6 months emergency fund first.
When should I remortgage UK?
Remortgage 6 months before fixed rate ends to avoid SVR. If current rate under 3%, wait. If SVR 8.5%, remortgage immediately. Compare fees versus rate savings.
Can I get a mortgage with bad credit UK?
You can get UK mortgage with bad credit from specialist lenders. Rates are 1% to 3% higher than high street. Require 15% to 25% deposit. Improve credit 6 months before applying.
What is a mortgage in principle?
Mortgage in principle is lender estimate of borrowing amount based on credit check and income. Valid 60 to 90 days. Not guaranteed. Full application requires property valuation and affordability check.
How does Help to Buy work UK?
Help to Buy Equity Loan closed March 2023. Shared Ownership still available: buy 10% to 75% share, pay rent on remainder. Minimum deposit 5% of share value. Staircase to 100% ownership over time.
What fees do I pay when remortgaging?
Remortgage fees include product fee £0 to £1,500, valuation £0 to £500, legal fees £300 to £500, and early repayment charge if applicable. Product transfer with same lender often fee-free.
Use Our UK Mortgage Tools
Use Payoof UK Mortgage Calculator for payments, affordability, SDLT, and overpayments. All tools use 2026 rates and thresholds. No registration needed. Start at Payoff Mortgage Calculator then explore Mortgage Basics, Mortgage Payoff Strategies, Mortgage Payoff Finance, Payoff Scenarios, and UK Overpayment Calculator.
Last updated: Aug 2026 |
