What is the Self-Employed Retirement Calculator?
The Self-Employed Retirement Calculator helps UK self-employed individuals understand how their business structure affects both day-to-day tax and long-term retirement outcomes. It compares operating as a sole trader versus a limited company and models how each structure supports a sustainable Bridge to Retirement.
How the Calculator Works?
This calculator models your finances across three distinct phases: working years, the bridge period before pension access, and full retirement.
You start by choosing a business structure. The calculator applies the relevant UK tax rules for sole traders and limited companies, including income tax, National Insurance, corporation tax and dividend tax. It then projects how much income you can retain and invest each year.
Those retained earnings are tracked across cash, ISAs, GIAs and pensions. When you stop working, the calculator shows how non-pension assets fund spending during the bridge period, before pension drawdown and the State Pension begin. All calculations are shown in real terms, meaning today’s spending power after inflation.
Step One: Choose Your Business Structure and Timeline
Select whether you operate as a sole trader or through a limited company. Set your current age, stop-work age, pension access age, State Pension age and model end age.
Step Two: Add Income, Assets and Spending
Enter your current assets, expected income, contribution strategy and spending levels for working, bridge and retirement phases.
Step Three: Review Tax, Assets and Retirement Sustainability
Compare tax paid, assets accumulated and retirement outcomes under each structure. Review charts, KPIs and year-by-year projections to see which approach better supports long-term financial security.
Disclaimer: This calculator provides illustrative projections only and does not constitute financial or tax advice. Tax rules, thresholds and personal circumstances change. Always consult a qualified accountant or financial adviser before making structural or retirement decisions.
What does retirement mean to you?
Traditional retirement is broken. Understand how our calculator enables you to live a better life now vs later.
Retire from corporate work?
Use the tool to utilise how you can step away from the corporate world and live life on your own terms.
Work less, live more
See how part-time or project-based work can bridge your income gap while giving you more time for life.
Freedom through planning
Understand how your savings, spending and investments can work together to buy back your time.
Test-drive retirement early
Model scenarios that let you experience elements of retirement before fully stepping away.
What is the Self-Employed Retirement Calculator?
It is a UK-specific planning tool that compares sole trader and limited company structures and models how each supports retirement through working years, the bridge period and full retirement.
What business structures does this calculator compare?
It compares operating as a sole trader versus running a limited company, using like-for-like gross income assumptions.
Does it include UK tax rules?
Yes. It models income tax, National Insurance, corporation tax, dividend tax and employer National Insurance using current UK rates and thresholds.
What is the “bridge to retirement”?
The bridge is the period between stopping work and accessing pension income. During this time, spending is funded from cash, ISAs and GIAs.
Does the calculator include the State Pension?
Yes. The UK State Pension is included and begins at the age you specify.
How are assets drawn down in retirement?
Withdrawals follow a tax-efficient order: cash first, then ISAs and GIAs, and finally pensions once accessible.
Are returns shown in today’s money?
Yes. All figures are inflation-adjusted so you can assess real spending power.
Can I compare tax efficiency between structures?
Yes. The calculator shows total tax paid, average tax rates and how much income is retained and invested under each structure.
Does it show if my plan runs out of money?
Yes. Year-by-year projections highlight whether your plan remains sustainable through to the chosen end age.
How should irregular income be entered?
Use a cautious yearly average and run a weaker year separately. Turnover is not personal income, so take off business costs, tax and money the business needs to keep. A pension contribution that works in the best month may not work across the year. Base saving on the cashflow, not the profit from one unusually good period.
Can a limited company contribute directly to my pension?
Yes, employer contributions can be efficient when they are wholly and exclusively for the trade and fit pension tax rules. They are not limited by the director’s relevant earnings in the same way as personal contributions, although the annual allowance still matters. Confirm material contributions with the accountant.
What if the business itself is part of my retirement plan?
Model a sale, closure and gradual run-down separately. Goodwill and customer relationships do not guarantee a buyer, and sale tax depends on structure and reliefs. Use a cautious net value and keep a version where the business produces no sale proceeds.
How should I replace employee benefits?
Allow for the protection an employer might otherwise provide, including sick pay, life cover, income protection and employer pension contributions. Self-employed retirement planning is not only about paying into a pension. You also need enough short-term protection so an illness or a slow year does not use up the retirement money.
Is my data stored?
No. All calculations run locally in your browser and no data is sent to servers.
Can I export the results?
Yes. You can download a CSV file with the full year-by-year results and summary metrics.
Trust and education
Certified Money First Aider®
These calculators are built by a Certified Money First Aider to help you think more clearly about money and time. Money First Aid® is about practical, non-judgemental support for financial wellbeing. The calculators can certainly help you make informed decisions, but they are not regulated financial advice.
Behind Retirement Calculators
Built from the questions I was asking myself
I'm Ryan, the person behind Retirement Calculators. I started the site after selling an online business and trying to understand what our pensions, ISAs, investments and property actually meant for the way we wanted to live.
The calculators are built around those real decisions: whether you could work less, retire earlier, spend more now or use your money differently. They will not give you a perfect answer, but they can make the trade-offs much easier to see.
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