Free UK repayment tools

Make a repayment decision with the right figures

Compare mortgage overpayments, early repayment charges, personal loans, car finance and credit-card payment paths—then verify the result against official provider documents.

What makes the result useful

A calculator is only as reliable as the figures and assumptions entered. Each tool explains what it can estimate, what it cannot discover, and which lender or provider details must be confirmed.

Read the calculation methodology

Who publishes this site?

Conor Dwyer is a multi-entrepreneur and multi-business owner who has paid more than £2 million in taxes through businesses he has owned and operated. That experience informs the site’s practical focus on records, liabilities, cash flow, official figures and better questions.

Conor is not an accountant, regulated financial adviser or tax adviser.

Read the author profile, sourcing process and correction policy.

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Browse all 25 guides

Free repayment planning tools

Practical spreadsheets, checklists and worked examples for mortgages, loans, car finance and credit cards.

Each toolkit includes clear instructions and examples that are ready for you to replace with your own information.

Open the download library