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General Financial Calculators
- Loan/Mortgage Calculator It calculates your loan repayments for you, showing the capital and interest.
- Millionaire Calculator Find out how long it will take you to become a millionaire and what it will be worth in today's money.
- Savings Calculator Illustrate how much can be accumulated by saving and what it will be worth in today's money.
Business Profitability Calculators
- Breakeven Calculator Find out the sales level needed to breakeven.
- Gross Profit Calculator Calculate gross profit percentage and the actual gross profit on sales.
- How To Make More Profit Calculator Use this unique calculator to see how a change in business will affect profit.
- Customer Lifetime Value Calculator You might be surprised at just how much your average customer is worth to you.
- Marketing Campaign Profitability Calculate the profitability on your marketing campaign and test different response and conversion assumptions.
- Mark Up to Gross Profit Converter Use to convert mark up percentage to a gross profit percentage.
Please note that no reliance should be placed on any of the calculators. They are not a substitute for proper professional advice.
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December 2025
- Top earners see an increase in HMRC investigations
- Treasury dealt blow as thousands of EV drivers use tax loophole
- Many risk paying tax twice due to multiple HMRC letter demands
- Snail farms discovered in London offices in tax avoidance scheme
- December Questions and Answers
- December Key Dates
- Autumn Budget 2025
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