SIPP calculator

Are you saving enough for retirement? Our calculator can help you find out.

How to use the calculator

Simply enter your details using the sliders and then adjust to see how a few changes could make a difference to your retirement income.

What is your target annual retirement income?


Current age:40Retirement age:65
Current pension pot£150,000
Future monthly contribution£1,000
Tax-Free Lump Sum %25%

What your values could be

Total pension value£840,309
Tax-Free Lump Sum£210,077

Target Income
Possible Income

It is important to understand that the calculator only gives an estimate. Many factors are unknown and assumptions have been made. It is designed to show how making a few small changes can make a difference to your retirement. It does not provide a pension illustration.

We provide a pension illustration when you apply to open a SIPP account. We provide further illustrations annually and at other important times, such as when benefits are accessed. These are based on individual circumstances and the rules and assumptions set out by the Financial Conduct Authority.

How this calculator works

The calculation only gives an estimate of what your income could be in retirement.  

There have been many assumptions made to help give a total pension value and annual income that is as meaningful as possible, but the values cannot be relied upon.  

The calculator makes a projection into the future and assumes the following:  

  • Your current pension and any future monthly contributions you make will be invested and grow by 5% each year and that inflation will increase by 2% each year.  Please note that the investment growth rate could be higher or lower, and this could make a big difference to your eventual pot size.  The ability to change the investment growth rate to see the impact on the projection is on its way.
  • Future monthly contributions include gross personal, gross employee and gross employer contributions and the level of these contributions will increase by 2% each year.   
  • An II Investor Service Plan and II SIPP fee is charged each month.  
  • The pension is invested equally in both funds and shares. Fund investments have an Ongoing Charge Figure (OCF) of 0.22% applied.  
  • The possible income is a gross annual amount and does not include the State Pension.  
  • The level of income is based on drawing benefits from your pension pot at rates of 3.00% per annum if you retire before age 60, 3.25% per annum before age 65 and 3.50% per annum if you retire at age 65 or older. The actual withdrawal rate that you may be able to use in retirement could be very different and will depend on many different factors.

How our SIPP can help you meet your retirement goals

A SIPP (Self Invested Personal Pension) puts you in control of your retirement planning. You get to choose how and where your pension is invested, with a range of flexible drawdown options available at retirement.

  • With ii, you will have access to more investment options than any other provider in the market. We have a choice of over 40,000 UK, US and international shares, funds, trusts, ETFs, bonds and gilts, and VCTs.
  • Or if you’re not sure where to start, our Quick Start Funds and Model Portfolios can get you up and running.
  • Our low, flat fees could give you thousands more in retirement. Most other providers charge percentage fees that grow with your pension value.
  • We don’t charge for regular investments into your SIPP – many other providers do. 
  • Our SIPP gives you flexibility over contributions. You can top it up with regular personal and employer contributions, or simply make one-off payments. The choice is yours.
  • Simplify your pensions: consolidating old pensions into one SIPP can make it much easier to keep track.

open a SIPP   transfer your pension

Please remember, SIPPs are aimed at people happy to make their own investment decisions. Investment value can go up or down and you could get back less than you invest. You can normally only access the money from age 55 (57 from 2028). We recommend seeking advice from a suitably qualified financial advisor before making any decisions. Pension and tax rules depend on your circumstances and may change in future.


It is tough estimating how much you will need in the future. With retirement being such an important lifestyle change, it is not a question we can ignore.

You may not need to sustain your current monthly income, especially if you expect to be mortgage-free in retirement. But you will need to think about the kind of lifestyle you want.

Think about big expenses such as buying a new car, helping children or grandchildren through education, or where and how often you might go on holiday.

Once you know how much you want in retirement, our calculator can help you decide whether you need to make some changes.

To increase your retirement income, you can save more before you retire, or delay the date you want to start taking your pension.

Consolidating your pensions, or switching to a lower-cost provider could also make a big difference. The sooner you do this, the more you will save over time.

Our low-cost SIPP could give you over £20,000 more in retirement over 30 years, compared with pensions that charge a percentage*.

Open a SIPP today and pay no SIPP fee for six months.

This means your service plan fee of £9.99 covers you for all of your investment accounts. Following the offer period, the ii SIPP fee is only £10 a month more, and could save thousands compared to other pension providers who charge a percentage fee. Terms apply

open a SIPP   transfer your pension