A sophisticated financial decision engine that ingests user-specific data (mortgage terms, current rates, tax bracket, liquidity requirements, risk tolerance) and generates personalized recommendations with visual scenario modeling. The tool calculates tax-adjusted returns, shows break-even points, models refinancing opportunities, runs Monte Carlo simulations for rate changes, and factors in life event contingencies. Users get a clear action plan with dollar-value comparisons across different strategies over their specific time horizon.

With mortgage rates hovering around 6-7% while HYSA rates remain at 3.5-4.5%, the decision has become genuinely complicated—neither option is clearly superior. Millions of homeowners who bought or refinanced in 2022-2024 are sitting on high-rate mortgages and need data-driven guidance on optimizing their cash allocation.