Bike leasing through gross salary exchange: how does it work and what do you save?

You want to lease a bike through your employer, and before long the term gross salary exchange comes up. You exchange part of your gross salary for a lease bike, and net you feel a lot less of it than the gross value suggests. Sounds good. But what does that look like on your payslip exactly? What does salary exchange for a bike lease actually get you? And can you still receive a bicycle allowance on top of that?

We explain it step by step here: the step-by-step plan, the tax benefit for employer and employee, the combination with the bicycle allowance, and the sectors where gross salary exchange doesn't work.

Want the bigger picture first? Then read how bike leasing works in practice or find out how a cafeteria plan works as a system (in Dutch).

What is gross salary exchange?

Gross salary exchange means you exchange part of your gross salary for a benefit in kind. In this case: a lease bike. Your gross salary goes down, your bike comes on top. And because you no longer pay social security contributions or withholding tax on that exchanged part, the bike costs you a lot less net than if you bought it with money that's already been taxed.

You may also hear it called salary sacrifice or a salary swap. Same principle, different name.

What sets gross salary exchange apart from the other forms: it's the continuous one. A fixed amount every month, for the entire lease period, usually 36 months. When you exchange your end-of-year bonus, you use one large amount once a year.

Net salary exchange exists, but it's clearly the least attractive option. You then pay for the bike with money that's already been taxed. Employers sometimes fall back on it when a gross exchange isn't possible in their sector.

How does bike leasing through gross salary exchange work?

From "I want a bike" to "I cycle to work every day" takes six steps. Leasing a bike through your employer almost always goes like this:

1. Your employer starts a bike plan. Bike leasing always runs through your company, never directly. Your employer signs a framework agreement with a leasing partner like Joule and sets the framework.
2. The sector check. Your employer checks whether the joint committee and the collective labour agreements allow gross salary exchange, and how much room there is above the sector minimum wage. That's sometimes where it gets tricky. More on that below.
3. You get a budget. The bike policy states how much you can spend at most, which types of bike are allowed, and how often you need to cycle to work. From city bike to speed pedelec or longtail: the budget sets the scope, not your taste.
4. You simulate gross to net. Before you sign, you see what the exchange does to your net salary. An important detail: the amount deducted from your gross salary is lower than the lease price. That's because your employer saves employer contributions on the exchanged part, and those savings flow back into your bike budget.
5. The paperwork. An addendum to your employment contract records the salary exchange, and the bike policy covers the agreements on use, maintenance, insurance and what happens if you leave the company. No policy yet? Our bike policy template can help!
6. The social secretariat processes the deduction. Payroll adjusts your gross salary from the start date. We connect to the common payroll systems, so HR doesn't have to retype anything manually.

Then you choose your bike at your local bike shop through Joule Local, or online with home delivery through Joule Mobile. Maintenance, insurance and breakdown assistance are included in the package.

The tax benefit of gross salary exchange for a bike lease

The tax benefit of a bike lease isn't a trick, it's policy. Belgium wants people on bikes, and rewards that on both sides.

For your employer

The lease cost of a company bike is 100% deductible from corporate tax. No employer social security contributions are due on providing the bike, provided you actually use it for commuting. And because the gross salary goes down, the employer contributions on that part drop too. In most cases, bike leasing is therefore budget-neutral.

One rule is crystal clear: the employer may not gain any financial benefit from the employee's salary exchange. The total annual wage cost may not go down because of the bike. All saved contributions have to flow back into your bike budget.

For you as an employee

You pay no benefit in kind on your lease bike, as long as you use it regularly for commuting. You confirm that with a declaration on your honour. Private rides and holidays are no problem either, as long as you remain the main user. On top of that, you pay no social security and no taxes on the exchanged part of your gross salary. Expect a net impact of about half the amount you exchange.

Want to know how that exemption is calculated exactly? We explain it in our article on benefit in kind with a gross salary exchange bike lease.

The honest small print

A lower gross salary also means a slightly lower basis for your holiday pay, end-of-year bonus, pension build-up and any benefits. Over 36 months, that effect stays limited, but you should know about it before you sign. Feel free to ask your social secretariat to run the numbers if you're unsure.

Combining gross salary exchange and the bicycle allowance

Yes, a bike lease and a bicycle allowance go together. You exchange part of your gross salary for the bike, and on top of that you get an allowance per kilometre you actually cycle. Two exemptions, one bike.

What you get depends on your sector. Here are the amounts for 2026:

So the maximum of 0.37 euros isn't what everyone automatically gets. It's the limit up to which the tax authorities don't look.

A worked example

Say you live 15 km from the office and you cycle there and back 200 days a year. That's 6,000 km.

• At 0.37 euros per km: 2,220 euros per year, or about 185 euros per month, fully exempt.
• At the JC 200 rate of 0.32 euros per km: 1,920 euros per year, or about 160 euros per month.

That amount comes in net, on top of your lease bike. With a gross salary exchange that costs you about 45 euros net per month, your commute more than pays for your bike.

Three conditions you can't get around

• The allowance only applies to the kilometres you actually cycle, there and back combined.
• The exemption only applies if you opt for the flat-rate professional expenses in your tax return. If you claim your actual professional expenses, the exemption no longer applies.
• The bicycle allowance itself can't be a conversion of salary. You exchange gross salary for the bike, not for the allowance. If the bicycle allowance comes from a salary exchange, you lose the social security exemption.

Want to know more? We cover everything in our article on the bicycle allowance of 0.37 euros per km.

Calculate your net impact

The honest summary: for every 100 euros of gross salary you exchange, you feel about 45 to 55 euros in your net salary. Exactly how much depends on your marginal tax rate, your family situation, dependent children and your municipal tax.

• Gross salary of 2,500 euros per month, gross salary exchange of 100 euros: about 50 euros net impact per month.
• Gross salary of 3,000 euros per month, gross salary exchange of 100 euros: about 45 euros net impact per month.
• Gross salary of 4,500 euros per month, gross salary exchange of 150 euros: about 65 euros net impact per month.

Notice the pattern? The higher your marginal rate, the less you feel the same exchange in net terms.

Two things many simulations forget and we'd rather mention. One: the amount you exchange is lower than the lease price, because the saved employer contributions go into your bike budget. Two: your gross salary exchange also affects your holiday pay and end-of-year bonus, so the annual total is slightly higher than twelve times the monthly amount.

That's why these figures are a direction, not a promise. For a calculation tailored to your payslip, use our calculator, or ask your payroll partner for a simulation.

👉 Simulate your gross salary exchange bike lease

Gross salary exchange or end-of-year bonus: which suits you?

Both forms give the same tax benefit. The difference lies in the frequency and in what your sector allows.

In short: gross salary exchange is the standard where it's allowed, the end-of-year bonus is the alternative where it's needed. Some employers combine both. You'll find more detail in our article on the end-of-year bonus as an alternative.

Sector restrictions and conditions

This is where a bike plan most often trips up. Gross salary exchange isn't possible everywhere, and for good reason.

Your sector has to allow it. If the sector collective labour agreement doesn't allow flexible pay, a salary exchange counts as a unilateral pay cut. That's not legally allowed, even if you as an employee agree to it.

Pay-scale sectors run into the minimum wage. If you're on a fixed pay scale, there's often little or no room between your gross salary and the sector minimum. A deduction would push you below that scale, and that's not allowed. In those sectors, the end-of-year bonus is usually the way out, although that also requires a separate collective labour agreement.

JC 200 is the big exception, in a good way. In the supplementary joint committee for white-collar workers, there's usually room above the minimum, so gross salary exchange runs smoothly there. A company-level collective labour agreement can also exist that tightens or actually loosens the rules.

Have your social secretariat take a look. They know your joint committee, the pay scales and the salary grades. Ask them explicitly: is gross salary exchange allowed in our JC, and how much room is there per employee?

And what if your salary goes up during the lease period? No problem. The exchanged amount stays the same, your net impact shifts slightly, and you stay within the pay-scale limit because your salary above the exchange only increases.

Ready to get started?

Bike leasing through gross salary exchange is budget-neutral for most companies, and for employees it's one of the few ways to take home more net without a pay rise. We take care of the framework, the simulations, the payroll integration and the after-sales service.

• Employer or HR? Find out what Joule does for your company.
• Curious about the numbers? Go to the calculator.
• Want the full picture first? Read our article on the cafeteria plan (in Dutch).

Any more questions? Contact us using the form below.

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