Long-Term Care Costs (WLZ) and Your FI Number

Most FIRE planning in the Netherlands borrows its mental model of long-term care from somewhere else — usually a US framing built around Medicare and Medicaid spend-down rules, ported over without checking whether it applies. It doesn't. The Netherlands runs a different system, the WLZ, and it prices long-term care in a way that specifically interacts with a large, early-retired asset base. If your FI number doesn't have a line for this, it's not because the risk is small — it's because almost nothing written about FI accounts for it.

What the WLZ actually is

The Wet langdurige zorg (WLZ) is the Dutch insurance scheme for long-term, intensive care — nursing homes, 24-hour supervision, the kind of care needed when someone can no longer live independently regardless of home support. It sits alongside, and is structurally different from, the Zvw (regular health insurance) and the Wmo (municipal home-support services). Everyone who lives or works in the Netherlands is automatically insured under the WLZ.

Funding works in two layers. The first is a payroll/income-based premium, collected as part of Box 1 tax — you've likely been paying into it your entire working life without a separate line item to notice. The second layer only applies if you actually end up needing WLZ care: a personal contribution, the eigen bijdrage, charged on top of what the premium already covers. That second layer is the one that matters for FI planning, because it isn't a flat fee — it's means-tested, and means-tested on more than income.

The mechanism that makes this an FI issue: assets count

The eigen bijdrage is calculated by the CAK (Centraal Administratie Kantoor, the body that administers WLZ contributions) using both the care recipient's income and their assets — including Box 3 wealth. There's a low-contribution tier for people below certain income/asset thresholds and a substantially higher-contribution tier above them. This guide isn't going to hand you the current euro thresholds or percentages, because the CAK revises them regularly and getting a stale number here is worse than no number — check cak.nl or belastingdienst.nl for the figures in effect when you're actually modeling this.

What matters structurally is the shape: your Box 3 assets are part of the base the CAK tests against, not just whatever income shows up on a payslip or annual return. That's the detail that changes everything for someone who's already FI.

Why this bites harder, not less, for someone who's FI

Picture two people with identical net worth — say, both sitting on a portfolio the size that would fund a comfortable retirement. One is still working, drawing a salary, with most of that net worth parked in illiquid pension accounts that don't show up the same way in a Box 3 asset test. The other retired early specifically on that portfolio — it's sitting in a brokerage account, fully in Box 3, generating the income they live on by design.

Under an income-based means test, the still-working salaried person might actually look "richer" to the system — a salary is unambiguous income. But under an asset-based means test, the FIRE'd household's entire stash is visible and countable, even though very little of it looks like traditional income. The person who did everything right — built a large, liquid, self-directed portfolio specifically so they wouldn't need employment income — is the person an asset-based test is best at finding. Low or no salary doesn't protect you here the way it might under a purely income-based system. This is the opposite of how most people intuit means testing to work, and it's exactly why FIRE households need to model it explicitly rather than assume "no income" means "low contribution."

Model it as a haircut, not an unknown

The instinct when you hit a risk like this is either to panic or to wave it away as unknowable. Neither is right. Treat the WLZ eigen bijdrage the way the safe-withdrawal-rate guide treats Box 3 drag: as a quantifiable cost bucket layered onto your number, not a reason to abandon the plan. It's a tail risk — most people don't end up needing years of intensive WLZ care — but tail risks with means-tested, asset-linked costs are exactly the kind a large-portfolio household should size explicitly, the same way you'd size a pre-AOW bridge or account for a partial AOW gap.

Concretely: when you're stress-testing your number on the FIRE-number calculator or working through the Path to FI, add a scenario where one household member needs several years of WLZ-tier care later in life, and see what the higher eigen bijdrage tier does to your annual draw in that scenario. You don't need the exact current tier boundaries to do this usefully — a conservative placeholder, revisited once you have the real figures, is enough to see whether your margin holds.

Revisit this like the rest of your plan

WLZ contribution tiers, the Box 3 assets counted against them, and the underlying premium all get revised periodically, and Box 3 itself is mid-transition as a tax base — which means the assets counted toward your eigen bijdrage today may be measured differently in a few years. Don't bake a single eigen bijdrage estimate into your FI number once and forget it. Check the current tiers on cak.nl as part of your annual plan review, the same way you'd revisit Box 3 rates or your AOW accrual — this is a live number, not a fact you look up once.