Interactive Financial Intelligence

Client-Facing Financial Modeling Suite

Real-time modeling tools to simulate retirement decumulation, compound ISA accumulation, and tax-efficient wealth growth.

Home / Calculators
Tool 1: Retirement Architecture

Pension Pot & Drawdown Simulator

Estimate the future value of your consolidated pension funds and determine your sustainable monthly drawdown income.

£150,000
£1,000 /mo
15 years
5.5% net
Reflects a whole-of-market globally diversified portfolio net of platform and fund fees.
Projected Total Pension Pot at Retirement
£618,342
Estimated Sustainable Drawdown (4% Rule)
£2,061 /mo
  • Tax-Free Lump Sum (25% capped): £154,586
  • Total Combined Contributions: £330,000
  • Projected Compound Growth: £288,342

*Illustrative purposes only. Assumes constant monthly compounding and 4% safe annual drawdown rate. Capital at risk.

Tool 2: Tax-Free Compounding

Compound Growth & Stocks & Shares ISA Simulator

Compare the long-term wealth impact of investing inside a tax-exempt Stocks & Shares ISA versus holding cash in standard savings.

£20,000
£1,000 /mo
20 years
Simulation Parameters:
• Stocks & Shares ISA: Modelled at 6.5% net annual return
• Standard Cash Account: Modelled at 2.0% annual interest
• All ISA growth & dividends remain 100% tax-free under UK legislation.
Projected Stocks & Shares ISA Value (6.5% Net)
£562,810
Projected Cash Savings Value (2.0%)
£323,710
  • Tax-Exempt Compounding Advantage: +£239,100
  • Annual ISA Allowance Used: £12,000 / £20,000

*Illustrative calculation. Excludes inflation. Stock market investments fluctuate and you may get back less than invested.

Advanced Quantitative Modeling

Beyond Basic Online Simulators

Our proprietary advisory software goes far beyond linear calculators, executing full multi-scenario Monte Carlo simulations.

Monte Carlo Stochastic Modeling

We run 1,000+ stochastic market paths across historical UK and global cycles, stress-testing your plan against catastrophic downturns occurring right at retirement (sequence of returns risk).

%

£100k+ Income Tax Trap Modeling

We calculate exact pension salary sacrifice requirements to eliminate the 60% effective marginal tax band between £100,000 and £125,140, reclaiming your full £12,570 personal allowance.

£

Commercial Lending & DSCR

Commercial mortgage amortization and Debt Service Coverage Ratio (DSCR) modeling to verify borrowing viability for SPV limited companies and property developers.

Personalised Cash Flow Audit

See Your Complete Lifetime Financial Forecast

Book a complimentary discovery session with Director David Gregory (DipPFS) to view a tailored lifetime cash flow model mapped to age 100.

Regulatory Information & Investor Protection: Off Piste Wealth Ltd is authorised and regulated by the Financial Conduct Authority (FCA). FCA Firm Reference Number: 955277. Registered Office: The Clubhouse, 8 St James's Square, London, SW1Y 4JU.

Capital at Risk Warning: The value of investments and the income from them can go down as well as up, and you may get back less than you invested. Past performance is not a reliable indicator of future results.