Investing tools

Compute your FI number and years to FIRE under five flavors — Lean, Regular, Fat, Coast, Barista — with the Trinity Study 4% safe withdrawal rate.

Future value of an initial principal plus recurring contributions across any horizon, with a stacked-area chart of principal / contributions / interest.

Monthly P&I and full PITI, complete amortization schedule, automatic PMI handling per the Homeowners Protection Act, extra-payment savings.

Year-by-year wealth comparison between buying a home and renting + investing the difference. Break-even year, market presets for US/UK/AU/Canada.

Typical fixed/variable bands, max LTV, term length, and prepayment-penalty regime for 18 non-US countries. Hub also links to the US full calculator.

Compare after-tax retirement value of pre-tax 401(k) vs Roth IRA, accounting for current and retirement marginal rates and employer match.

Bogleheads-style waterfall: where the next dollar should go across 401(k) match, HSA, Roth IRA, full 401(k), and Mega Backdoor. 2026 IRS limits; catch-up + Roth phase-out handled.

Project share count, dividend income, and yield-on-cost growth under a DRIP over multi-decade horizons. Tax-drag toggles included.

Per-share dividend declarations from SEC EDGAR XBRL filings. Quarterly bar chart, trailing-twelve-month total, links to the underlying 10-K / 10-Q for every value.

Largest open-market buys and sells from SEC Form 4 filings over the last 90 days. CEO, director, and 10% holder activity with deep links to every filing.

Statutory pension age, contribution rates, and withdrawal-tax treatment for the retirement systems of 19 modelled countries.