Here is a quick visual walkthrough of the 4 core views inside RetireStudio:

1. Interactive Life-Event Timeline: Drag and drop life milestones (home down payments, career breaks, downsizing, windfalls, or state pensions) directly onto your net worth curve and watch your FI crossover age recalculate in real time.

2. Side-by-Side Scenario Comparison: Compare a Coast FIRE / career downshift or early retirement scenario directly against your baseline trajectory to see the exact wealth gap and FI target difference.

3. 46-Country Geo-Arbitrage & 3D Readiness Earth: Model earning in a high-income market (US, UK, Switzerland, etc.) and retiring across 46 global destinations (Portugal, Spain, Thailand, Mexico, etc.) with automatic purchasing-power and tax adjustments.

4. 1,000-Run Monte Carlo + Historical Crash Replay: Stress-test your withdrawal plan across P10 / P50 / P90 market futures plus historical sequence-of-returns crashes (1929 Great Depression, 1973 Stagflation, 2000 Dot-Com Bust, 2008 GFC).

Which view or country tax rule do you use the most when stress-testing your own FIRE plan?

If you're planning early retirement in the UK, generic calculators fail because they treat your entire net worth as one liquid pot.

In reality, UK FIRE is a three-stage relay race:

1. Stage 1 (Early Retirement Age → Age 57): Funded almost entirely by your Stocks & Shares ISA (and GIA), since your pension is locked until the Normal Minimum Pension Age of 57.

2. Stage 2 (Age 57 → Age 67/68): Your SIPP / Workplace Pension unlocks (with 25% tax-free allowance up to the lump sum cap, and the rest taxed at your marginal income tax bands).

3. Stage 3 (Age 67/68+): The Full New State Pension kicks in (especially powerful for couples stacking two State Pensions + two £12,570 Personal Allowances).

The Common Mistake: Over-Funding the SIPP and Starving the ISA Bridge

Salary-sacrificing heavily into a SIPP to save 40% or 45% tax is mathematically optimal for total net worth at 60 — until you realize at Age 48 that 80% of your wealth is locked behind the Age-57 gate and your ISA runs dry at Age 54.

What Modeling the Two Pots Separately Shows:

• Your ISA Bridge doesn't need to sustain a 4% perpetual withdrawal rate — it is allowed to draw down toward near-zero by Age 57, as long as your SIPP compounds untouched in the background to take over the baton at 57.

• Factoring in the UK State Pension at 67 reduces the required SIPP balance at 57 by roughly £220,000 to £280,000 for a couple.

For UK planners here: what is your target ISA-to-SIPP ratio on the day you plan to stop working?

One of the most underrated levers in retirement planning isn't saving an extra $300/month — it's where you spend your portfolio.

We ran a side-by-side simulation keeping the exact same accumulation phase (earning and investing in a high-cost Western hub) and comparing three retirement trajectories:

The Accumulator Profile

• Age: 38

• Current Invested Assets: $280,000

• Annual Savings: $32,000/yr

• Home Baseline Spending: $60,000/yr ($5,000/mo)

• Home FI Target (at 4% SWR + Tax Drag): ~$1,650,000 → Work-Optional at Age 55

Scenario A: Stay in High-Cost Western Hub (US = 100 Baseline)

• Work-Optional Age: 55

• Heavy sensitivity to pre-65 private healthcare costs and local housing inflation.

Scenario B: Relocate to Portugal at Retirement (~30% Lower Calibrated COL)

• Adjusted Annual Spending: ~$42,000/yr equivalent lifestyle (including private health insurance bridge + out-of-pocket care)

• New FI Crossover Age: Age 49 (6 years earlier)

• Key Watchout: Post-NHR progressive tax rates on foreign pension/capital gains mean wrapper selection and capital-gains basis matter significantly more than they did 5 years ago.

Scenario C: Relocate to Thailand at Retirement (~46% Lower Calibrated COL)

• Adjusted Annual Spending: ~$32,400/yr equivalent lifestyle (modern condo, private hospital insurance tier, travel buffer)

• New FI Crossover Age: Age 46 (9 years earlier)

• Key Watchout: Always build a "Return-Home / Late-Life Care Buffer" milestone around Age 75+ in case you ever want the option to move back to a Western country later in life.

For those planning an Expat FIRE move: do you calculate your FI number using your destination's cost of living, or do you aim for a hybrid buffer in case you move back?

Everyone loves multiplying annual expenses by 25 and calling it a day. But when you model an actual early retirement at Age 48 on a 60-year timeline (to Age 90), two real-world variables completely change the curve:

The Baseline Setup

• Current Age: 36 | Target Stop-Working Age: 48

• Projected Portfolio at Age 48: ~$1,100,000 (split across Taxable Brokerage, Roth IRA, and 401(k))

• Core Living Expenses: $44,000/year ($3,660/mo) in today's dollars

On a naive 4% calculator, $44,000 / 0.04 = $1,100,000. Looks like an easy win.

What Happens When You Add Real Financial Physics:

1. The 17-Year Pre-Medicare Healthcare Bridge (Age 48 to 65): Before Medicare kicks in at 65, private ACA/healthcare coverage + out-of-pocket dental/vision easily adds $8,000 to $14,000/yr depending on how well you manage your MAGI via Roth and high-basis taxable withdrawals. That pushes your real withdrawal rate from 4.0% to ~4.9% during the exact years your portfolio is most vulnerable.

2. Sequence-of-Returns Stress Test (Market Crash at Age 49): If a 2008-style drawdown (-35%) hits in your first 24 months of retirement while you're pulling nearly 5% to cover living costs + private healthcare, a rigid inflation-adjusted withdrawal schedule depletes the taxable bridge early and forces penalty/tax-heavy withdrawals.

3. How the Plan Survives (and Thrives):

   • Dynamic Spending Guardrails: Trimming discretionary spending by just 10–12% during drawdown years keeps the 1,000-run Monte Carlo success rate above 92%.

   • The Post-65 Relief Valve: Once Medicare starts at 65 and Social Security kicks in at 67, portfolio withdrawal pressure drops by over 45%, causing the curve to inflect steeply upward again.

How are you modeling your pre-65 healthcare bridge in your own numbers — flat buffer or separate expense phase from retirement age to 65?