ISA Calculator for United Kingdom
Project Stocks & Shares or Cash ISA growth from annual or monthly contributions.
Open calculator🇬🇧 United Kingdom
Mortgage, ISA, stamp duty, income tax, and NI in £ (GBP). Free tools for mortgages, tax, retirement, loans, and budgeting—then track spending in Atlantic on iPhone and iPad.
UK money decisions often revolve around mortgage deals, ISA allowances, stamp duty bands, National Insurance, and student loan Plan thresholds. These calculators use GBP and typical UK structures so you can model payments, tax, and long-term savings in one sitting.
Whether you are remortgaging, topping up an ISA, or estimating take-home pay after pension contributions, treat the output as a planning range—not a quote from a lender or HMRC. Update inputs when Bank of England rates or your personal allowance changes.
Atlantic Finance on iPhone and iPad is built for ongoing tracking: categories, budgets, and clear month-end reviews after you have run the numbers here.
Estimate monthly repayments on a UK repayment mortgage (capital and interest).
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Estimate Plan 2 student loan repayment from annual salary (9% above threshold).
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See interest saved from regular monthly overpayments on a UK mortgage.
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Estimate months to clear a credit card balance with fixed monthly payments.
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Estimate Stamp Duty Land Tax (SDLT) on residential property in England & NI (simplified bands).
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Estimate income tax and Class 1 National Insurance (2024/25, England/Wales/NI rates).
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Rough CGT on gains after annual exempt amount (simplified rates for individuals).
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