About this tool
The International FIRE Calculator answers a question almost every FIRE blog ignores: where you retire changes how much you need. The 4% rule from Bengen 1994 produces a clean 25x annual-expenses target on a tax-free dollar. Real life taxes withdrawals. A US 401(k) is taxed at ordinary income rates. A German Rürup is taxed at roughly 75-100% of payout. An Australian super at 60+ pays nothing. The same $60,000 lifestyle therefore implies wildly different FIRE numbers by country.
This calculator gross-up the FIRE target by an effective retirement tax rate that reflects the country's pension wrappers, capital-gains rules, and personal allowances, then projects how long it takes to get there with your savings rate and real return. It also compares all eight side-by-side so country choice becomes a visible lever, not an invisible assumption.
How it works
- Pick your country. The form updates the currency, the tax callout, and the model's effective retirement tax rate.
- Enter your numbers in that currency: annual expenses you want to fund in retirement, current invested savings, annual savings, real return, withdrawal rate.
- Read the FIRE number. It is your
expenses / (1 - tax) / withdrawal_rate- your gross target after retirement tax is grossed up. - Read the years-to-FIRE. It is solved by simulating annual contributions at your real return until current_savings plus contributions equals the target.
- Compare countries in the table. Same expenses, different tax, different number, different timeline.
The formula
The first line is the gross-up. If you want $60,000 to spend after tax and your effective retirement tax is 20%, you need $75,000 gross. Then 25x (at 4% SWR) gives $1.875M, not $1.5M. The second line is the standard future-value of an annuity inverted to solve for years.
Country tax assumptions used
| Country | Pension wrapper | Effective tax | Logic |
|---|---|---|---|
| 🇺🇸 US | 401(k), IRA, Roth, taxable | 12% | Standard deduction shelters ~$15K; LTCG 0% up to ~$50K; 401(k) at ordinary rates. No state tax (FL/TX baseline). |
| 🇬🇧 UK | SIPP, ISA, workplace pension | 16% | 25% pension lump sum tax-free; ISA tax-free; rest at 20% basic above £12,570 personal allowance. |
| 🇨🇦 Canada | RRSP, TFSA, non-registered | 20% | RRSP/RRIF taxed at marginal; TFSA tax-free; balanced mix on $60-80K income. |
| 🇦🇺 Australia | Superannuation | 0% | Super withdrawals tax-free after age 60. Largest single advantage in FIRE planning. |
| 🇮🇳 India | EPF, PPF, NPS, equity MF | 8% | PPF/EPF tax-free; equity LTCG 10% above ₹1.25L; new regime ₹12L+₹75K rebate. |
| 🇦🇪 UAE | Private investment | 0% | No personal income tax; no tax on capital gains, dividends, or pension income. |
| 🇸🇬 Singapore | CPF, SRS, taxable | 2% | Resident bands are 0-2% on the first SGD 80K. CPF Life payouts are not taxed. |
| 🇩🇪 Germany | Riester, Rürup, gesetzlich | 25% | Statutory and Rürup payouts are 83-100% taxable in 2025, taxed at progressive rates that average ~25% on a mid-range retirement income. |
Numbers are blended planning figures, not the marginal rate on the last euro. Real outcomes depend on wrapper choice, regional taxes (US state, Canadian provincial, German Solidaritätszuschlag), and the order in which you draw from tax-deferred vs taxable accounts. For a personal plan, model your specific portfolio with a local adviser.
How to use the International FIRE Calculator
The International FIRE Calculator runs entirely in your browser. Pick a country, enter your numbers in that country's currency, and read the gross-up FIRE target plus years-to-FIRE. The page also renders an 8-country comparison so country choice becomes visible. Inputs never leave your device.
- Privacy: nothing is logged, sent, or stored by 3Tej. Inputs disappear when you close the tab.
- Speed: results update as you type. No network round trip.
- Offline use: once the page is cached, it works without internet.
- No signup: no account, no email, no rate limits.
Step by step
- Pick a country. The currency symbol, tax callout, and FIRE math update.
- Enter your annual expenses in that currency in today's money. Use after-tax spending you actually want to fund.
- Enter your current invested savings and annual savings rate in the same currency.
- Read the gross FIRE target and years to FIRE. The country comparison shows the other 7 jurisdictions at the same expenses.
- Adjust the withdrawal rate to test 3% (lean), 3.5% (50-year safer), or 4% (Trinity Study standard).
When you would use this
- Choosing where to retire: same lifestyle, very different number. Country choice is a savings-rate cheat code.
- Cross-border planning: you earned in one country, plan to retire in another. Tax wrapper rules of the destination drive the target.
- Sanity-checking US-centric tools: 99% of FIRE calculators assume US tax. This corrects for the other 7.
- Sensitivity testing: see how much a 5pp tax difference changes the corpus you need.
- Migration ROI: estimate the saved years from moving to a lower-tax jurisdiction before FIRE.
Frequently asked questions
Why does the FIRE number depend on which country you retire in?
Because retirement income is taxed very differently by country. Australia's superannuation is tax-free after 60, so you only need 25x your spending. Germany taxes pension withdrawals at roughly 25%, so the same lifestyle requires about 33x. The UK gives a 25% tax-free lump sum and then taxes the rest. The UAE has no personal income tax at all. Same expenses can imply wildly different FIRE numbers.
What tax assumptions does this calculator use?
US: ~12% blended (standard deduction shelter + 0% LTCG + 401k ordinary income, no state tax). UK: ~16% effective (25% tax-free pension lump sum + 20% basic-rate above £12,570 personal allowance, ISA withdrawals untaxed). Canada: ~20% on a balanced RRSP/TFSA mix at $60-80K. Australia: 0% from super after age 60. India: ~8% (PPF/EPF tax-free, equity LTCG 10% above ₹1.25L, new regime ₹12L slab plus ₹75K standard deduction). UAE: 0%. Singapore: ~2%. Germany: ~25% effective on Riester/Rürup pensions, which are 83-100% taxable from 2025.
How do I plan for healthcare in early retirement?
US is the hardest case: from FIRE to age 65 you bridge the Medicare gap with ACA marketplace plans, often $500-$1,500 per month per person depending on income-based subsidies. UK and Canada have universal coverage (NHS, provincial plans), so the FIRE budget mostly covers dental, optical, and top-up insurance. Australia has Medicare plus optional private hospital cover. Germany has statutory health insurance (~14-15% of income) which continues into retirement. UAE and Singapore expect private insurance. Budget realistically: 5-10% of spending for non-US, 15-20% for US under 65.
What is sequence-of-returns risk and why does it matter for FIRE?
Early retirees are vulnerable to a bad market in the first 5-10 years of retirement. Selling assets during a drawdown locks in losses your portfolio cannot recover from. The 4% rule survives roughly 95% of US historical 30-year periods but fails when retirement starts at a market peak followed by a deep crash. Mitigation: hold 2-3 years of cash, use a guard-rail withdrawal strategy, start at 3.25-3.5% and step up after good years, or include a small annuitised income floor.
Should I count social security or state pension in my FIRE plan?
Conservative FIRE practice: ignore it until you draw it. State pensions (US Social Security, UK State Pension, Canada CPP/OAS, Australia Age Pension, Germany Gesetzliche Rente) typically start at 65-67. If you retire at 45, they cover years 65-100, not the 20-year gap. Many FIRE planners model these as a safety margin or a higher income floor after 67, not a primary leg of the plan.
Is 4% safe internationally or should non-US savers use a lower rate?
Bengen 1994 and the Trinity Study used US data. International evidence (Wade Pfau, Morningstar's international Safe Withdrawal series) suggests 3.0-3.5% for global portfolios over 50-year horizons. For 30-year retirement starting at 60+, 4% still holds for diversified global equity. For 50-year FIRE retirements starting at 40-45, 3.25-3.5% is the safer default. Australian super and UK pension wrappers reduce tax drag, so an effective real return can be slightly higher and the SWR a touch looser.
How do I handle currency risk if I retire in a different country than I worked in?
Hold a portion of your portfolio in the currency you will spend in. A common rule: 5-10 years of spending in your retirement currency, the rest globally diversified. If you retire in India on a US dollar portfolio, you carry rupee depreciation risk. If you retire in Germany on US dollars, you carry euro/dollar risk. Hedged share classes or local-currency government bonds can reduce this. Treat the cost of currency conversion (typically 0.2-1.0% per move) as part of the withdrawal budget.
When does it make sense to migrate to a lower-tax country before FIRE?
Tax migration before FIRE is most efficient when (a) the destination has a clear no-tax or low-tax regime on capital gains and pension income, (b) you can establish genuine residency that survives challenge from the origin authority, and (c) the move covers at least 10 years of withdrawals so legal and moving costs amortise. Common moves: high-tax EU to Portugal NHR, Italy 7% pensioner regime, Greece pensioner regime, US to Puerto Rico Act 60, anywhere to UAE. Always model exit-tax rules, tax-treaty positions, and the cost of breaking domicile before moving.
Is the International FIRE Calculator accurate?
The math is exact for the inputs you provide. The tax rates are blended planning figures, not your specific marginal rate. For a real plan, model your actual portfolio with a local adviser, especially around tax-wrapper sequencing, state/provincial taxes, and inflation in your retirement country.
Is the International FIRE Calculator free?
Yes. 100% free, no signup, no payment, no API key. The site is funded by display ads that appear around the tool but not inside the calculation flow.
Are my inputs saved?
No. Inputs stay in your browser tab. Closing the tab discards them. The site uses anonymised traffic analytics but does not see what you type into the form.
Can I use this on my phone?
Yes. The tool is responsive and tested on iOS Safari, Android Chrome, and major desktop browsers. The country grid, table, and form scale to mobile.
How do I report a bug?
Email hi@3tej.com with the URL of this page and a description of what you saw vs expected. We typically respond within 72 hours and update calculators when tax rules change.
How accurate is the International FIRE Calculator?
The arithmetic is exact. The country tax rates are blended planning figures, not your marginal rate on the last unit of income. Real outcomes depend on wrapper choice, regional taxes, and sequencing.
Does this calculator work offline?
Yes. Once the page is loaded, it works without internet. The math runs in JavaScript on your device.
Why are results different from another FIRE tool?
Most US FIRE calculators do not gross up for retirement tax at all. This one does. That alone explains a 10-30% gap on the target.
How do I share results?
Screenshot the result block or country comparison table. The page does not generate shareable URLs for specific calculations - inputs stay in your browser only.