Financial Disclaimer

Not personalised advice

Nothing on FinTrex is a recommendation to buy, sell, borrow, invest, save, insure, refinance, select a tax position, or use a particular financial product. Content is not tailored to your objectives, financial situation, risk tolerance, jurisdiction, tax code, credit profile, or legal obligations.

What calculation accuracy means

FinTrex aims for each deterministic calculator to implement its displayed formula and documented assumptions correctly. That does not make a projection a guaranteed real-world outcome. Results still depend on the values entered and on assumptions that may not match future conditions or a particular product.

Calculator limitations

Real outcomes may differ because of fees, taxes, inflation, product-specific compounding conventions, payment timing, market volatility, interest-rate changes, missed payments, contribution timing, currency movements, law, and personal circumstances. Where monthly investment or savings modelling is used, FinTrex treats the entered annual return as an effective annual return and converts it to an equivalent monthly rate. Fixed-rate loan and mortgage calculations instead treat the entered rate as a nominal annual interest rate divided across 12 monthly periods unless the individual calculator states otherwise.

Fees and investment assumptions

Where a calculator models an annual asset-based investment fee, FinTrex uses the documented simplified convention of multiplying the gross annual growth factor by (1 − fee) before converting the resulting net annual factor to the model’s periodic rate. Real products can charge fees at different times, on different bases, or in multiple layers. Assumed returns, dividend yields, dividend growth, withdrawal rates, and asset values are not guaranteed; investments can fall as well as rise and you may lose money.

UK take-home-pay estimate

The UK salary calculator uses the 2026/27 standard Income Tax bands for England, Wales and Northern Ireland and employee Class 1 National Insurance Category A thresholds. It is an annualised educational estimate, not a PAYE payroll engine; employee National Insurance is assessed by pay period in practice, so irregular pay can differ. The model does not cover Scottish Income Tax, individual tax codes, student or postgraduate loans, taxable benefits, bonuses with irregular pay-period effects, savings or dividend tax, or every pension arrangement. Salary-sacrifice treatment is modeled only to the extent stated on the calculator.

UK tax-rule verification

FinTrex checks its 2026/27 UK headline Income Tax, employee and self-employed National Insurance, dividend, Capital Gains Tax, VAT and standard England/Northern Ireland residential SDLT assumptions against GOV.UK/HMRC material. Rule-sensitive tools still remain simplified educational estimates and can exclude reliefs, surcharges, residence rules, tax-code effects and other individual circumstances.

Model horizons

Some long-running payoff and savings simulations use a finite safety horizon to prevent an endless calculation. If a target is not reached within that horizon, FinTrex reports that it is beyond the model horizon rather than treating the horizon itself as a successful payoff or goal date.

Wealth profiles

Wealth estimates may rely on public sources, methodology choices, delayed disclosures, and incomplete information. Values can change quickly and should not be treated as audited statements of personal wealth or current market value.

External data

Rates and economic indicators may be delayed, revised, unavailable, or sourced from third parties. FinTrex identifies sources and verification information where available, preserves last-known-good values when practical, and may automatically refresh provider data, but cannot guarantee uninterrupted availability or that a provider will never revise a published observation.

Seek qualified advice

Before making a material financial, tax, investment, borrowing, pension, or legal decision, verify the relevant information independently and consider speaking with a suitably qualified and authorised professional in your jurisdiction.