Tax Optimisation Calculators
Explore how to use ISAs, pensions and efficient wrappers so you keep more of your returns. These tools highlight the long term impact of fees, allowances and tax planning.
💼UK Tax Efficiency
UK tax rules offer various allowances and tax-efficient wrappers to help you keep more of your investment returns. These calculators help you understand ISA limits, pension tax relief, dividend and capital gains allowances, and how to structure your investments for maximum tax efficiency.
📊How these calculators help
Our Tax Optimisation calculators model the long-term impact of tax planning strategies. They help you compare ISAs versus SIPPs versus GIAs, maximise allowances, understand the High Income Child Benefit Charge, and see how tax-efficient investing accelerates your retirement timeline.
Your Tax Optimisation Journey
A typical tax planning path involves several key decisions. Use our calculators to evaluate your options at each stage.
Compare Tax-Efficient Wrappers
Use the Pension vs ISA Comparison Calculator to see which wrapper best supports your retirement goals based on your tax situation and contribution levels.
Understand Your Tax Position
Calculate your marginal tax rate and see how the High Income Child Benefit Charge affects your take-home pay.
Maximise Your Allowances
Plan how to use your ISA allowance, pension annual allowance, dividend allowance and capital gains tax allowance to minimise tax on your investments.
Plan Tax-Efficient Withdrawals
Model different withdrawal sequences from ISAs, pensions and GIAs to minimise tax in retirement while maximising your income.
Start with these popular calculators
These tools are the best starting point for understanding your tax position. They help you compare tax-efficient wrappers, understand allowances, and see how tax planning affects your retirement timeline.
Pension vs ISA Comparison Calculator
Compare the tax efficiency of pensions and ISAs to see which wrapper best supports your retirement goals based on your tax situation and contribution levels.
High Income Child Benefit Charge Calculator
Calculate how the High Income Child Benefit Charge affects your take-home pay and see how pension contributions can reduce or eliminate the charge.
Marginal Tax Rate Calculator
Calculate your marginal tax rate to understand how much tax you pay on additional income and how pension contributions can reduce your tax bill.
Getting Started with Tax Optimisation
New to tax planning for retirement? Follow this step-by-step guide to start optimising your tax strategy.
- Compare tax-efficient wrappers – Use the Pension vs ISA Comparison Calculator to see which wrapper best supports your retirement goals.
- Understand your tax position – Calculate your marginal tax rate to see how much tax you pay on additional income.
- Check for tax traps – Use the High Income Child Benefit Charge Calculator to see if you’re affected and how pension contributions can help.
- Maximise your allowances – Plan how to use your ISA allowance, pension annual allowance, dividend allowance and capital gains tax allowance.
- Refine your plan – Use other calculators to model withdrawal sequences, understand tapered allowances, and see how tax planning affects your retirement timeline.
All Tax Optimisation calculators
Browse all Tax Optimisation calculators. These tools help you understand UK tax rules, compare tax-efficient investment wrappers, maximise allowances, and see how tax planning affects your retirement timeline.
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Pension Carry Forward & Annual Allowance Calculator (UK Specific)
What is the Pension Carry Forward & Annual Allowance Calculator? The Pension Carry Forward & Annual Allowance Calculator helps you understand how much you can contribute to your pension today by combining your annual allowance with any unused allowances from the previous three tax years. It shows your total available…
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Inheritance & Gifting Calculator (UK Specific)
A calculator to forecast how Inheritance & gifting can impact your own retirement & taxation. The Inheritance & Gifting Calculator shows how future inheritances and planned lifetime gifts may affect your retirement timeline and potential UK inheritance tax. By combining your current savings, investment pots, expected gifts and future inheritance…
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Sell vs Keep Your BTL(s) In Retirement Calculator
What is the Sell or Keep your BTL calculator? The Sell vs Keep Your BTL(s) In Retirement Calculator helps you compare the long-term income you could receive from selling your rental properties today versus keeping them for rental income and selling later. It highlights the sustainable income each option can…
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State Pension Gap Calculator
What is the State Pension Gap Calculator? The State Pension Gap Calculator shows you how many National Insurance years you currently have, how many you’ll have by State Pension age, and whether you are on track for the full new State Pension. It highlights any shortfall, shows the pro-rata amount…
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ETF vs Managed Portfolio Fees Calculator
How can the fees of a Managed Portfolio vs ETF impact your retirement? Compare a low-cost global index fund (such as Vanguard FTSE Global All Cap at 0.23% OCF) against a typical UK managed portfolio charging 1–2% per year. See how fees compound over time and how much they can…
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Retirement Drawdown Planner (UK)
Have you planned how you will draw down your money in retirement? The Retirement Drawdown Planner helps you model how your cash, pensions, ISAs and investments can support you throughout retirement. It shows how long your money can last based on your spending, income sources, real returns and the order…