How much do you need for a comfortable retirement?

April 4, 2025

Planning for retirement is one of the most significant financial challenges we face. Research suggests that 77% of UK adults don’t know how much they need to save for a comfortable retirement, with many significantly underestimating the size of the pension pot required.

The same research, by the Pensions and Lifetime Savings Association (PLSA), also found that 51% of adults believe that saving only the minimum automatic enrolment rate into their pension will be enough to sustain their retirement. Unfortunately, for many people, it won’t.

Such uncertainty can lead to inadequate planning and potential financial strain in later life. Without a clear target, it’s difficult to know if your current pension contributions are sufficient or if you need to save more.

The challenge is complicated by the fact that ‘comfortable’ means different things to different people. Your ideal retirement might involve frequent travel and dining out, while someone else might be content with a quieter, more frugal lifestyle.

This blog examines the factors that determine how much you’ll need in retirement and provides practical guidance on calculating your ideal pension pot size. We’ll explore how to bridge any gaps in your current savings and explain how professional advice can help you create a more secure financial future.

Defining a comfortable retirement

Retirement comfort exists on a spectrum, typically broken down into three broad categories: minimum, moderate and comfortable.

A ‘minimum’ retirement covers your basic needs, such as housing, food, utilities and modest leisure activities. The PLSA’s Retirement Living Standards guidelines suggest this requires around £14,400 per year for a single person or £22,400 for a couple.

A ‘moderate’ retirement allows more financial freedom, including dining out, holidays and running a car. According to the PLSA, this lifestyle requires approximately £31,300 annually for a single person or £43,100 for a couple.

A ‘comfortable’ retirement enables more extensive travel, a newer car and potential help with home maintenance. This might require £43,100 per year for a single person or £59,000 for a couple.

These figures assume you own your home, mortgage-free. If you’re renting or still paying a mortgage in retirement, you’ll need significantly more income.

Your personal circumstances will influence what ‘comfortable’ means to you.

Do you have expensive hobbies? Is giving your family financial support important to you? Do you live in a high-cost area? All these factors will affect how much you’ll need to retire.

So, start by creating a retirement budget based on your expected lifestyle. List your essential expenses like utilities and food, then add discretionary spending such as holidays, hobbies and entertainment. Taking a personalised approach will provide a more accurate picture of your specific needs.

Key factors affecting your retirement needs

Several crucial factors influence how much you’ll need for retirement. The age at which you retire and your expected longevity will significantly impact your requirements.

The longer your retirement, the larger your pension pot needs to be.

With UK life expectancy – currently 78.8 years for men and 82.8 years for women – continuing to rise, many people face retirements of 20-30 years or more. So, planning for at least 25 years of retirement income is prudent for most people.

Your housing situation will dramatically affect your retirement finances. If you own your home outright by retirement, your income needs will be lower. If you still have mortgage payments or rent to pay, you’ll need a substantially larger income.

Healthcare costs also become more important as we age. While the NHS provides essential care, many retirees value additional private coverage for certain treatments or want funds available for potential care home fees. The average weekly cost of residential care in the East Midlands is around £1,146, with nursing care costing even more.

Geography matters, too. Retirement in London or the South East typically costs more than in other parts of the UK. So, if you’re planning to relocate in retirement, research the cost of living in your desired location.

Finally, inflation will erode the purchasing power of your pension over time. Even modest inflation of 2% annually can halve the value of your money over 35 years.

Your retirement planning needs to account for increasing costs throughout your later life.

Calculating your retirement income

Understanding your expected retirement income starts with knowing what you’ll receive from various sources.

The State Pension currently provides a maximum of £230.25 a week (around £11,900 a year) (2024/25 rates), assuming you have 35 qualifying years of National Insurance contributions. This, alone, falls short of the PLSA’s minimum retirement level for a single person.

You can check your State Pension forecast on the Government website.

Next, review your workplace and private pension forecasts. Annual statements from your pension providers should show projected values at retirement, though these are estimates rather than guarantees. Many pension schemes also offer online calculators to help you see how changes to your contributions might affect your final pot.

Consider other income sources like rental properties, part-time work or non-pension investments. These can supplement your pension income significantly.

A common rule of thumb suggests aiming for 70% of your pre-retirement income to maintain your desired lifestyle. This accounts for certain expenses, such as commuting costs, mortgage payments, and pension contributions, which are typically reduced in retirement while allowing for increased spending in areas like leisure and healthcare.

For example, if you currently earn £40,000, you might aim for an annual retirement income of approximately £28,000. Subtracting the State Pension would leave around £16,500 to be funded from other sources.

Building your retirement pot

Once you’ve estimated your required retirement income, you can work backwards to calculate the pension pot needed to provide it.

If you plan to purchase an annuity – a financial product that provides guaranteed income for life – based on current rates, you’d need around £270,000 in your pension pot to generate £15,000 of annual income.

If you prefer a drawdown – keeping your pension invested and withdrawing from it – a sustainable withdrawal rate would be around 3%-4% annually. At 4%, you’d need £375,000 to generate £15,000 a year.

The investment returns your pension achieves can significantly affect how big a pot you need. Higher returns mean you can potentially save less, but they often come with increased risk. Taking a balanced approach, appropriate to your risk tolerance, is recommended.

Getting professional advice is essential. It will help you make informed choices about your pension.  

Compound growth also plays a crucial role in building your pension. Starting early gives your money more time to grow. For example, contributing £200 monthly from age 30 could grow to approximately £190,000 by age 65, assuming 5% annual growth. Starting the same contributions at 45 would only accumulate around £77,000.

Small increases to your contributions can have a substantial impact over time. Increasing your monthly contributions by just £50 could add tens of thousands to your final pension pot over a working lifetime.

Bridging the gap

If your projected pension falls short of your retirement needs, there are several things you can do to bridge the gap.

Increasing your pension contributions is the most straightforward approach. Even modest increases can significantly impact your final pot size, thanks to compound growth.

Delaying retirement allows more time for your pension to grow while reducing the period it needs to support you. Working even two or three years longer than planned can substantially improve your retirement finances.

Adjusting your expectations might be necessary if increasing contributions or working longer aren’t viable options. Consider which aspects of your planned lifestyle are most important and where you might compromise.

Part-time work in retirement can provide both income and purpose. Many retirees find that a phased retirement – gradually reducing hours rather than stopping work completely – offers financial and well-being benefits.

Creating a retirement plan

While there’s no one-size-fits-all answer to how much you need for retirement, understanding the factors that influence your requirements is essential for effective planning.

Your retirement plan shouldn’t be static. Regular reviews, ideally annually, will help keep you on track as your circumstances change. Major life events like marriage, children leaving home or receiving an inheritance should trigger a reassessment of your plan.

As we mentioned earlier, getting professional financial advice is essential when planning for retirement. A qualified adviser can help you understand complex pension options, optimise your investments and create a personalised retirement strategy. And that’s where Glenrose can help.

We specialise in helping our clients create robust retirement plans tailored to their circumstances and aspirations. Our experienced advisers will work with you to understand your retirement goals, assess your current provisions and develop a bespoke strategy to help you achieve the retirement lifestyle you desire.

We provide clarity on your pension options, help you optimise your contributions and investments, and ensure you’re making the most of your available tax allowances and benefits. Book an appointment with one of our advisers today to discuss how we can help you build a more secure retirement.

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