Remortgage Calculator 2025
Calculate potential savings from remortgaging your property with our comprehensive UK remortgage calculator. Compare your current mortgage with new deals, including all fees and costs, to see if switching will save you money. Updated for October 2025 UK market conditions. Our professional calculator analyzes monthly payment changes, total interest savings, breakeven points, and all associated costs to help you make informed remortgaging decisions. Whether you're coming to the end of a fixed-rate deal, looking to reduce payments, or wanting to release equity, get instant calculations showing exactly how much you could save. Use alongside our affordability calculator to understand borrowing capacity and our interest rates calculator to compare different rate scenarios for optimal remortgaging strategy.
Your Current Mortgage
Enter details about your existing mortgage
UK Remortgaging Opportunities
- Fixed Rate Expiry: Avoid reverting to higher standard variable rates when your deal ends
- Market Rate Drops: Significant rate reductions (0.5%+ difference) can justify switching costs
- Improved Credit Profile: Better credit score or increased income opens access to premium rates
- Property Value Growth: Reduced loan-to-value ratio qualifies for better rate tiers
- Equity Release: Access property equity for home improvements, investments, or debt consolidation
- Term Adjustments: Extend or reduce mortgage term to optimize monthly payments
- Product Switching: Move from interest-only to repayment or vice versa based on strategy
- Lender Issues: Poor service, inflexible terms, or better features available elsewhere
UK Remortgaging Requirements & Costs
- Early Repayment Charges: ERCs can be substantial (1-5% of balance) - check your mortgage terms carefully
- Property Valuation: Lender's valuation determines LTV ratio and available rates - use our deposit calculator for LTV planning
- Credit Score Requirements: Maintain excellent credit for best rates - check your credit report before applying
- Affordability Assessment: Income, expenses, and stress testing at higher rates - use our affordability calculator
- Market Timing Strategy: Consider Bank of England rate trends and economic forecasts
- Total Cost Analysis: Include arrangement fees (£0-£2,000), valuation (£150-£500), legal fees (£300-£800)
- Regulatory Compliance: FCA rules require lenders to assess suitability and provide clear cost breakdowns
- Professional Advice: Consider mortgage broker fees vs potential savings from better deals
Frequently Asked Questions
Common questions about remortgaging
When is the best time to remortgage?
The best time to remortgage is typically 3-6 months before your current deal ends. This gives you time to research options and complete the process without reverting to your lender's higher standard variable rate. Also consider remortgaging if rates have dropped significantly or your circumstances have improved.
How much does remortgaging cost?
Typical remortgaging costs include arrangement fees (£0-£2,000), valuation fees (£150-£500), legal fees (£300-£800), and potentially early repayment charges. Total costs often range from £500-£3,000, but many lenders offer free valuations and legal work to attract customers.
Can I remortgage to borrow more money?
Yes, this is called a "remortgage with additional borrowing." You can typically borrow up to 80-90% of your property's current value, minus your existing mortgage balance. The extra funds can be used for home improvements, debt consolidation, or other purposes, but consider the increased monthly payments.