What is the Inflation Impact on Long-Term Spending Tool?
The Inflation Impact on Long-Term Spending Tool shows how inflation affects your spending over time. It projects how today’s spending grows in future pounds, highlights the cumulative cost across decades, and compares different inflation assumptions so you can see how small changes add up over a lifetime.
How the Calculator Works?
This calculator starts with your current annual spending and projects it forward year by year from a chosen start age to an end age. You can apply a single inflation rate to all spending or split inflation between essentials and discretionary costs to reflect real-world spending patterns.
It compares your chosen inflation scenario against a baseline aligned with the Bank of England’s 2% target. Results show annual spending in future pounds, constant purchasing power values, and the cumulative difference versus the baseline. All calculations run locally in your browser and update instantly as inputs change.
Step One: Set Your Spending and Timeline
Enter your current annual spending and the ages the projection should cover.
Step Two: Choose Inflation Assumptions
Apply a single inflation rate or use split rates for essential and discretionary spending.
Step Three: Review Long-Term Impact
Explore year-by-year projections, cumulative totals and how your assumptions compare against a 2% baseline.
Disclaimer: This tool provides illustrative projections only and does not constitute financial advice. Inflation rates and spending patterns vary over time. Use this tool for planning insight rather than precise forecasting.
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What is the Inflation Impact on Long-Term Spending Tool?
It is a UK-focused planning tool that projects how inflation affects spending over time, helping you understand long-term cost growth and cumulative impact.
What does this tool actually show?
It shows how inflation increases spending in nominal terms over time and how that affects total lifetime costs.
Why compare against a 2% baseline?
The 2% rate reflects the Bank of England’s long-term inflation target and provides a familiar reference point.
What is the difference between nominal and today’s money?
Nominal values show future cash amounts, while today’s money adjusts for inflation to reflect constant purchasing power.
Why split inflation between essentials and discretionary spending?
Different types of spending often experience different inflation rates. Splitting allows more realistic modelling.
Does this account for changes in lifestyle?
No. It assumes spending patterns remain broadly similar in real terms. Lifestyle changes would need separate modelling.
How far into the future does the projection run?
You can project spending across several decades, typically up to later life.
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 breakdown.