Credit & Loan Calculators
Calculate monthly payments, principal-interest breakdown, loan refinancing, and payoff savings with crystal-clear charts.
UK Stamp Duty Calculator (SDLT England & Northern Ireland)
Calculate SDLT for standard purchases, First-Time Buyer relief up to £425,000, 5% second home surcharge, and non-UK resident levies for properties in England and Northern Ireland.
Wales LTT Calculator (Land Transaction Tax)
Calculate Welsh Land Transaction Tax (LTT) across main residential brackets (£225k threshold) and higher rates for second properties and holiday homes.
UK Mortgage Repayment & Reversion Shock Calculator
Calculate UK monthly mortgage repayments (capital & interest vs interest-only), stress test against SVR reversion shock, and assess required deposit / LTV.
Personal Loan Calculator
Calculate equal monthly payments and total repayment for personal loans.
Auto Loan Calculator (Universal)
Calculate vehicle loan financing with down payment, interest, and payoff schedule.
Credit Card Installment Calculator
Calculate post-purchase installment fees and interest for credit card transactions.
Loan Refinance Calculator
Calculate your net savings and break-even point when refinancing to a lower interest rate.
Borrowing Capacity Calculator
Calculate your maximum borrowing power based on net income and DTI ratios.
Credit & Loans What You Need to Know
All tools in Calconova are engineered with institutional financial and scientific formulas. The enterprise decimal.js engine is utilized to eliminate floating-point rounding errors typical of standard JavaScript applications.
All calculations execute directly on your local device (Edge/Client-side); none of your data is stored on remote servers, guaranteeing 100% privacy.
All calculations, amortizations, and scenario projections displayed on this page are strictly for informational and educational purposes. Nothing herein constitutes investment, financial, tax, or legal advice. Actual HMRC tax bands, National Insurance contributions, Bank of England base rates, and lender criteria may vary. Calconova explicitly disclaims all liability for any decisions taken based upon these calculations. Consult a qualified financial advisor, CPA, or official HMRC documentation prior to executing financial commitments.