NEST Pension Projection Tool
Use this calculator to estimate how your workplace pension could grow by retirement. It models monthly contributions, investment growth, NEST-style charges, and inflation.
What is a NEST pension calculator?
A NEST pension calculator helps you estimate the future value of your pension based on how much goes in each month and how long it has to grow. NEST (National Employment Savings Trust) is one of the largest workplace pension providers in the UK, and many people are automatically enrolled through their employer.
The challenge for most savers is simple: it is hard to know whether current contributions are enough. This calculator gives you a practical estimate so you can make better decisions now, not years from now.
How this calculator works
1) Contributions from employee and employer
You enter an employee contribution rate and employer contribution rate. The calculator applies these percentages either to:
- Qualifying earnings (between lower and upper thresholds), or
- Full salary if you untick the qualifying earnings option.
This matters because contributions based on full salary are usually higher than contributions based on banded qualifying earnings.
2) NEST-style charges
The model includes two common charge types:
- Contribution charge on money going in (default 1.8%).
- Annual management charge (AMC) on the invested pot (default 0.3%).
Charges can seem small, but over decades they make a meaningful difference, so it is important to include them in a projection.
3) Investment growth and inflation
The projection uses your expected annual growth rate (before charges), converts that to a monthly rate, and compounds it over time. It also gives you a “today’s money” estimate by adjusting for inflation, which can give a more realistic view of spending power at retirement.
How to use the calculator well
- Start with realistic salary and contribution assumptions.
- Test at least three growth scenarios (cautious, central, optimistic).
- Check whether your employer will match higher contributions.
- Increase contributions after pay rises rather than waiting years.
Quick interpretation guide
After calculating, focus on these numbers:
- Estimated pot (nominal): total projected value in future pounds.
- Estimated pot (today’s money): inflation-adjusted buying power.
- Total invested contributions: amount actually invested after contribution charges.
- Estimated investment growth: how much of the pot is from returns rather than contributions.
Ways to improve your projected retirement outcome
Increase contributions early
Even a 1% increase in contribution rate can have a large impact over 20–40 years because of compounding.
Keep salary progression in mind
If your salary rises over time, your pension contributions generally rise too. Including salary growth gives a more useful forecast than a flat-pay assumption.
Review assumptions once per year
Returns, inflation, and your personal circumstances change. Re-running your projection annually keeps your plan grounded in reality.
Important limitations
This tool is an educational estimator, not regulated financial advice. It does not include every possible factor (tax rule changes, contribution breaks, fund switches, market shocks, drawdown strategy, or annuity rates). Use it to inform decisions and conversations, not as a guaranteed forecast.
Final thought
A pension plan does not need to be perfect on day one. It needs to be active, reviewed, and improved over time. If your projected pot is below your target, the easiest next step is usually to raise your contribution rate gradually and revisit the numbers every year.