Understanding your projections
What the numbers on this site are - and, just as importantly, what they are not.
Quidworth is a projection tool, not a financial adviser. Every figure it shows is an estimate calculated from information and assumptions that you supply. Nothing on this site is a personal recommendation, and no figure is a guarantee of any future outcome.
What Quidworth does
Quidworth takes the financial picture you describe - your household's income, savings and investment accounts, pensions, properties, mortgages, debts and everyday spending - and projects it forward month by month and year by year. It shows how your cash, savings and net worth could evolve over time, and lets you explore “what-if” scenarios such as overpaying a mortgage, changing pension contributions, or a change in income. The scenarios are yours: you choose what to model and which assumptions to use, and the tool does the arithmetic.
Where the numbers come from
Every projection starts from the data you enter. Quidworth does not connect to your bank, verify your figures, or know anything about your finances beyond what you type in. If an input is wrong, incomplete or out of date, the projection built on it will be too.
The assumptions we make
A projection is only ever as good as its assumptions. Quidworth's are deliberately simple and visible:
- Growth and interest rates you set. Investment growth, savings interest and similar rates are the ones you choose for each account. Real markets do not grow at a steady rate - they rise and fall unpredictably - so a constant rate is a simplification that no real portfolio will match year to year.
- Inflation you set. The “today's money” view discounts future figures using the single annual inflation rate chosen in Settings. Actual inflation varies year to year and differs across categories of spending.
- A single year's tax rules. Income tax, National Insurance and pension allowances are calculated using one UK tax year's published rates and thresholds for your selected region, held constant for the whole projection. Tax law changes almost every year, and our implementation simplifies some details (for example, interactions with less common allowances and reliefs). Your actual tax position may differ.
- Steady behaviour. Unless you model a change as a scenario, the projection assumes your income, spending, contributions and repayments continue as entered - no job changes, emergencies, windfalls, or changes of plan.
What a projection cannot know
No tool can predict investment returns, interest rates, inflation, house prices, tax and pension policy, your health, or your circumstances. Real outcomes will differ from any projection - sometimes substantially - and the further into the future you look, the wider that gap can become. Treat long-horizon figures as a rough sketch of one possible path, not a forecast of what will happen. Past performance of any investment is not a guide to its future performance.
Not financial advice
Quidworth does not provide financial, investment, tax, pension or mortgage advice, and does not make personal recommendations. It does not carry out any activity regulated by the Financial Conduct Authority, and it is not authorised or regulated by the FCA. Nothing on this site is an invitation or inducement to buy, sell or hold any investment or financial product.
Before making significant financial decisions - changing pension contributions, remortgaging, moving investments, taking on or paying off debt - consider taking advice from an adviser authorised and regulated by the FCA. You can also get free, impartial guidance from MoneyHelper, a UK government-backed service.
Questions
If anything here is unclear, contact us at legal@quidworth.com.