The minimum monthly contribution needed for a comfortable retirement.
- colinslaby
- Jul 29
- 6 min read
One of the most common questions regarding personal pensions is, "How much should I start contributing?" Unfortunately, there isn't a straightforward answer, as it varies based on numerous factors unique to each individual. For instance, your age, your desired retirement age, and how much you can realistically afford to contribute will all influence your answer.
In this article, I will explain how you can build a substantial pension pot by making relatively small contributions. I will emphasize the importance of starting early, keeping costs low, and leveraging the power of compounding to maximize your retirement savings.
Importance of starting early
The classic problem with retirement planning is that people put off dealing with it until it is looming on the horizon. By that point, it is extremely difficult to build a pension pot sufficient enough to give you the retirement you want, especially if you are starting from scratch. People are told to build a sustainable pension income but how can you do it realistically? For the rest of this article, I will ignore the state pension until the very end as there is no guarantee that it will be around in its current form by the time you retire.
Start with a realistic expectation
Many people do not have a realistic understanding of how much money they need to save for a comfortable retirement. To assist with this, the Pensions and Lifetime Savings Association (PLSA) regularly updates its Retirement Living Standards. For 2026, the PLSA defines three levels of post-tax income for a single person:
- Minimum (£14,000 a year): Covers basic needs with a little left over for leisure activities.
- Moderate (£33,000 a year): Provides financial security, allows for running a small car, and includes a two-week holiday each year.
- Comfortable (£45,000 a year): Offers financial freedom, enables regular car replacements, and supports luxury holidays.
Various advisers have conducted additional analysis based on this PLSA research to determine how large a pension pot is needed to achieve these lifestyles. Their calculations are based on a single person retiring at age 66 and consider the full State Pension right from the beginning. The current full State Pension is £12,548 a year, so they calculated the necessary size of a private pension pot to provide the remaining income. They concluded that a private pot of £691,000 is needed for a Comfortable retirement and a private pot of £413,000 for a Moderate retirement.
Ultimately, only you can decide how much retirement income you want. However, using these figures can give you a clearer idea of the savings required. Don't get discouraged; there are ways to improve your chances of achieving your desired retirement income.
Forget the idea of rinsing your pension
If you aim to achieve a 'Comfortable' lifestyle in retirement, you'll need a substantial pension pot of £691,000. This amount assumes that you will use the entire pot to generate income, without taking 25% as a tax-free lump sum. If you wish to enjoy a comfortable income while also accessing a maximum tax-free lump sum for spending, you'll need an even larger amount saved.
However, it's important to note that most people will have paid off their mortgage by the time they retire, which means you won't need to allocate funds for monthly mortgage payments once you retire.
If we set aside the idea of withdrawing a lump sum from your pension and instead focus on achieving the more attainable 'Moderate' lifestyle standard, the required private pension pot decreases to £413,000. When combined with the full State Pension of £12,548, this amount can generate a gross income of approximately £37,700 per year, which is very close to the UK average salary.
Start paying into a pension early
The power of compound returns means that the earlier you start saving for a pension, the less you need to contribute each month. Assuming an average annual investment return of 5%, to accumulate a pension pot worth approximately £413,000 by the age of 66, you would need to save the following amounts each month:
- £350 if you start at age 30
- £650 if you start at age 40
- £1,410 if you start at age 50
Although these figures may seem high, starting your savings early can reduce your required monthly contributions by more than half.
Keep pension charges low
Now the above figures assume that you pay an annual charge on your pension (be a personal pension or a SIPP) of around 1.5%. Yet these days it is possible with some funds to get the annual charge much lower. Charges have a huge impact on the size of your pension fund over time.
Investment risk
One of the benefits of starting to save for retirement early is the ability to take on a bit more risk with your investments. The figures mentioned earlier assume a conservative average return of 5% per year. However, if a 30-year-old investor opted for a riskier approach and achieved an average annual return of 8%, they would only need to save £175 a month to reach the desired retirement pot of £413,000.
While there's no guarantee of consistently achieving an 8% return each year, having a longer investment timeline—such as 36 years for a 30-year-old—allows for greater risk tolerance. Conversely, older savers may not have the same opportunity to take on this level of risk.
Save via a pension & get tax relief
The downside of ISAs (Individual Savings Accounts) is that you do not receive tax relief on contributions. However, the advantage is that you do not pay tax when you withdraw your money, and you can access the funds at any time.
In contrast, with a pension, most of your income will likely be tax-free when you start to draw from it, especially if you have a relatively modest pension income. However, saving for retirement through a pension means you need to be comfortable with not having access to the funds until you retire, which is currently age 55, but will rise to 57 in 2028.
The significant benefit of saving through a pension is that you receive tax relief on your contributions. For example, for a basic-rate taxpayer, a monthly pension contribution of £175 will actually cost them only £140 out of their take-home pay.
Join your company scheme
If you are employed, over 22, and earn more than £10,000 per year, you will be automatically enrolled in your company's auto-enrolment pension scheme.
You'll need to contribute a minimum of 5%, while your employer must contribute at least 3%. Some employers may contribute more than the minimum. Although you have the option to opt out, it would be unwise to miss out on the extra money provided by your employer.
For example, if an employer perfectly matches an employee's pension contributions, a 30-year-old employee might pay just £70 a month (after tax benefits) and receive a total of £175 monthly thanks to their employer and HMRC, since pension contributions qualify for tax relief.
This significantly improves the likelihood of achieving a comfortable retirement income. While saving money is essential, there is no simple solution to pension savings. The key is to implement various strategies to improve your financial situation. Although an 8% return on investment may seem ambitious, the earlier example does not account for potential increases in your pension contributions as your earnings grow. This means you may not need to achieve an 8% annual return on your investments.
Lastly, delaying retirement—until age 67 or 70, for instance—might be necessary for those who have not adequately funded their pensions. However, this strategy can greatly reduce the amount you need to save for retirement.
Pension vs ISAs
Before the introduction of new pension freedoms, ISAs were considered the most flexible option for saving for retirement. However, the debate between pensions and ISAs is now less straightforward. Using a stocks and shares ISA for retirement savings provides the flexibility to access funds in case of an emergency. Therefore, it is a sensible strategy to start saving with ISAs. Once you are confident that you won’t need access to these funds, you can move them into a pension to take advantage of tax relief, provided you have paid enough income tax that year.
Regardless of the path you choose, both pensions and ISAs serve as tax wrappers, meaning the underlying investments can be the same in either case.
Summary
By following the examples provided above, you can reach the £413,000 benchmark for a 'Moderate' retirement by implementing every tip in this guide. Starting early, lowering your investment fees, selecting a growth-focused portfolio that averages an 8% return, maximising your 1:1 employer matching scheme, and considering your state pension (currently £12,548 a year) significantly reduce the actual out-of-pocket monthly cost from your take-home pay. Here’s what you would need to save each month:
A 30-year-old would need to set aside just £70.
A 40-year-old would need to save £172.
A 50-year-old would need to contribute £454.
By following these strategies, you can achieve your retirement goals with a more manageable monthly saving plan.
