Your FI Plan After the 30%-Ruling Ends

Most FI plans built during the 30%-ruling years quietly assume the ruling's net-income boost is permanent. It isn't. When your ruling ends, it doesn't fade out — it stops on a specific date, and your full salary is taxed at the regular progressive Box 1 rate from the next paycheck onward. If your FI plan was calibrated to ruling-era take-home pay, that plan is wrong the moment the ruling ends, and it's worth being wrong about on your own schedule, not the Belastingdienst's.

It's a cliff, not a phase-out

Under the 30%-ruling, up to 30% of your gross salary is tax-free; the rest is taxed normally. The day the ruling ends, that tax-free slice disappears and your entire salary is taxed at full Box 1 rates. There's no gradual transition — some cohorts see the tax-free percentage step down partway through the ruling's duration, but once the ruling itself ends, the change to your net pay happens in a single pay cycle.

Concretely: your net monthly income drops in one step, by an amount that depends on your salary and current bracket exposure. If your FI plan is expressed as "invest €X/month," and €X was sized against ruling-era net pay, you need a new €X before the cliff arrives — not a scramble to find it afterward. Model the post-ruling paycheck now, using your actual salary and the current Box 1 brackets, and check whether your planned contribution rate still fits inside it.

This matters more the closer you are to your FI number. A withdrawal-rate plan or a coast-FI timeline built on a savings rate that's about to shrink needs re-testing against the smaller number, not the one you've gotten used to.

For pre-2024 holders: the Box 3 cliff stacks on top

If you elected partial non-resident status alongside the ruling before 2024, there's a second cliff layered on the first. Foreign assets that have sat outside Dutch Box 3 taxation fall into the Box 3 grondslag at their value once that exemption ends — full stop, not phased in. Our 30%-ruling as FI arbitrage guide covers the end-2026 deadline for this transitional protection and the mechanics of how it winds down; if you're in this category, read that first, because the two cliffs — Box 1 salary and Box 3 wealth — can land close enough together to compound the hit to your annual numbers in the same tax year. See Box 3 wealth tax explained for how the deemed-return calculation actually applies once your foreign assets are inside it, and the 2028 Box 3 reform for how the rules you'll land under are themselves still shifting.

If you're a post-2024 holder, Box 3 has applied to your worldwide assets all along — only the Box 1 salary cliff is new to you when the ruling ends.

What to do 12–24 months out

Don't wait for the end date to show up in a payslip. With 12–24 months of runway, do this:

1. Re-run your FI number assuming full Box 1 and Box 3 exposure. Use the FIRE number tool with your post-ruling net income, and the FIRE projector to see how the changed savings rate shifts your timeline. If you were also assuming Box 3-exempt foreign assets, rerun the projection with those assets fully inside Box 3.
2. Check whether your withdrawal rate still holds. A safe withdrawal rate calculated against a ruling-era accumulation pace may be optimistic once both your contribution rate and your investment returns face full Dutch tax. This is also where the standard FIRE-calculator inputs tend to understate what the Netherlands actually costs you — see why the FIRE calculator overstates your number here if you haven't already corrected for that.
3. Decide whether to front-load remaining tax-advantaged investing before the cliff. If you have room to invest more while the ruling and any Box 3 exemption are still active, that capital gets more compounding time at lower tax drag than it ever will again. This isn't about panic-investing in the final months — it's about checking, with a year or two of lead time, whether your current contribution rate is actually the ceiling of what you can sustain, or just the rate you happened to settle into.
4. Re-run the numbers the year it actually happens. A plan made 18 months out is a forecast, not a fact. Tax brackets move, your salary changes, and the ruling's own rules have been reformed before. Treat the pre-cliff plan as a working draft that gets replaced by a real recalculation once the end date arrives — not something you assume still holds because it was correct when you made it.

Confirm your own end date

The maximum duration of the 30%-ruling has already been shortened by past reforms, and nothing rules out it being shortened again before your own ruling ends. Don't plan around a duration you remember from when you first got the ruling, or a number you've seen quoted generically — confirm your specific end date against your own beschikking (approval letter) from the Belastingdienst. If you elected partial non-resident status, the same applies to that election's own timeline, which may not track the salary ruling exactly.

Use the 30%-ruling calculator to see how your own numbers shift as the end date approaches, and revisit the Path to FI overview for how this cliff fits into the rest of your plan. As always, check your specific dates and thresholds against your own approval letter and a tax advisor before treating any of this as your actual numbers — the mechanism is stable, but your figures are not something to guess at.