The smaller target when part-time work helps.
Barista FIRE number
—
Gap to fund
—
Years to reach
—
Your breakdown
Updates live as you type| Step | Figure |
|---|
The maths of a smaller number
Full financial independence asks you to build a portfolio big enough to fund your entire lifestyle from investment returns alone. Barista FIRE relaxes that. The name comes from the idea of working a low-stress part-time job, the proverbial barista shift, that covers some of your spending, so your investments only have to fund the rest. Because the portfolio target is set by the gap rather than the whole budget, the number you need to save shrinks dramatically. This tool does that calculation: it takes your annual spending, subtracts the part-time net income you expect to keep earning, and divides the remaining gap by your safe withdrawal rate to get the portfolio you actually need.
The lever that makes it work is the safe withdrawal rate, the share of your portfolio you can draw each year without running it down over a long retirement. A 4 percent rate, the default here, implies you need 25 times the gap. Choose a more cautious 3.5 percent and the multiple climbs toward 29 times. The tool then walks your current savings forward year by year, adding your contributions and compounding at your real return, to estimate how long it takes to hit the target.
A $35,000 gap, funded by investments
Take someone who spends $60,000 a year and is confident they can keep $25,000 of part-time net income going through their semi-retired years. That leaves a $35,000 gap for investments to cover. Pair that with a 4 percent withdrawal rate, $150,000 already invested, $20,000 a year in fresh contributions, and a 5 percent real return. Here is what the tool reports.
The Barista FIRE number is $875,000. Compare that to full FIRE on the same $60,000 budget, which at 4 percent would demand $1.5 million. Keeping a modest part-time income has cut the target by $625,000, as the two bars below show. That difference can be the gap between retiring in your forties and never quite getting there.
How NZ Super shrinks the target further
This calculator deliberately ignores NZ Superannuation, which makes it conservative, and that is the point. From age 65, NZ Super pays every qualifying resident a base income for life, currently around $519 a week for a single person living alone and about $399 each for a couple. If your Barista FIRE plan only needs to bridge you from, say, 50 to 65, the portfolio does not have to last forever; it has to last until the government pension takes over. Many people run this tool, then sanity-check it against a shorter bridge period and find the part-time income they need is lower still. The flip side is a common mistake: assuming a part-time income you cannot realistically sustain into your sixties. Be honest about how many years you will actually want to work.
Who this suits, and who it does not
Barista FIRE rewards people who genuinely enjoy some work and want to drop the intensity, not those desperate to stop entirely. It fits a tradesperson who can take on a few jobs a week, a consultant happy with two days, or anyone with a skill that converts to flexible part-time income. It works less well if your field offers no part-time path, or if your health may not let you keep earning into your sixties. Run the tool honestly: if the part-time income you have assumed is fragile, model a lower figure and watch the target climb, so you are planning for the income you can rely on rather than the one you hope for.
Should I use a real or nominal return?
Use a real return, after inflation, which is why the field is labelled that way and 5 percent is a reasonable default for a growth-tilted portfolio. Working in real terms means your spending figure and your target stay in today’s dollars, so you do not have to mentally inflate everything. If you instead enter a nominal 8 percent return but leave spending in today’s money, the tool will understate how big a pot you genuinely need.
Is the part-time income taxed before I enter it?
Enter the net figure, what lands in your bank account after PAYE and the ACC earners' levy. The whole calculation is about funding real spending, and you spend net dollars, not gross. If your part-time work pushes you across a tax threshold or you are juggling a second job on a secondary tax code, work out the take-home separately and bring the after-tax number here.