Remortgage Comparison Calculator | Compare Mortgage Deals & Save

Compare remortgage deals against your current mortgage. Calculate potential savings, new payments, and break-even point. Free remortgage calculator with analysis.

🏠 Remortgage Comparison Calculator

Compare your current mortgage against new deals to see if remortgaging makes sense

📍 Current Mortgage
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✨ New Remortgage Deal
Potential Savings Over Deal Period
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After accounting for all fees and charges
Calculating...
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Monthly Savings
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Total Fees
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Break-Even (Months)
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Net Saving
MetricCurrent MortgageNew DealDifference

Remortgage Calculation Formulas

📐 Understanding Remortgage Calculations

Monthly Payment

Standard amortization formula where P = principal, r = monthly rate, n = total months.

Break-Even Point

Number of months until remortgage savings exceed the total fees paid.

Net Savings

Total payment savings minus all fees (ERC, arrangement, legal, valuation).

📊 Typical Remortgage Costs

Fee TypeTypical RangeNotes
Arrangement Fee£0 - £2,000Often added to loan or paid upfront
Valuation Fee£0 - £500Often free with remortgage deals
Legal/Conveyancing£0 - £1,000Often free or cashback available
Early Repayment Charge1-5% of balanceCheck your current deal terms
Broker Fee£0 - £500Some brokers are fee-free

📈 When to Consider Remortgaging

SituationRecommendationPotential Benefit
Fixed deal ending soonStart looking 3-6 months beforeAvoid SVR, lock in rates
On SVR after deal endedRemortgage nowSignificant rate reduction
Property value increasedLower LTV = better ratesAccess cheaper deals
Credit score improvedMay qualify for better ratesLower monthly payments
Want to borrow moreRemortgage for home improvementsRelease equity

❓ Frequently Asked Questions

Q: What is remortgaging and how does it work?
Remortgaging means switching your existing mortgage to a new deal, either with your current lender (product transfer) or a new lender. The new mortgage pays off the old one, and you start fresh with new terms, rates, and a new deal period.
Q: When is the best time to remortgage?
Start looking 3-6 months before your current deal ends. Most mortgage offers are valid for 3-6 months, so you can lock in a rate early. Never let your deal expire and roll onto SVR, which is typically 2-4% higher than fixed rates.
Q: What is an Early Repayment Charge (ERC)?
An ERC is a penalty for leaving your mortgage deal early. It's typically 1-5% of your outstanding balance and decreases each year of your deal. For example, a 5-year fix might charge 5% in year 1, 4% in year 2, etc. Check your terms before remortgaging.
Q: Should I add the arrangement fee to my mortgage?
Adding fees to your mortgage means paying interest on them over the full term. A £1,000 fee over 25 years at 5% costs £1,750+ in total. Pay upfront if you can. However, a fee-free deal at a slightly higher rate may cost more overall—always compare total costs.
Q: Do I need a solicitor to remortgage?
Yes, legal work is required to transfer the mortgage. However, many lenders offer free legal services for remortgages. A product transfer with your current lender typically doesn't require legal work and is faster (usually 2-4 weeks vs 4-8 weeks).

📚 Official Resources