The principle — why extra-legal benefits exist

In Belgium, out of €100 of gross salary, the employee receives on average €50 to €60 net after NSSO (13.07%) contributions and withholding tax. The employer, meanwhile, has paid ~€125 to €130 in total because of its own employer contributions (~25-30%).

To reduce this gap, the legislator has authorized a series of extra-legal benefits that enjoy a favorable tax and social regime. Used well, they represent several thousand euros per year of additional purchasing power — without your gross salary moving.

Well-optimized pay can generate €3,000 to €8,000 of additional purchasing power per year, without any increase in gross salary. The stake in negotiation is also the package, not just the gross.

Package logic — Decisio.be
~50%
Average marginal rate of tax + social pressure in Belgium
€2,000+
Potential annual saving via meal vouchers + eco vouchers used well
2 schemes
Supplementary pension: employer group insurance + personal IPC / VAPZ

1. Meal vouchers — the basic benefit

Meal vouchers are the most widespread extra-legal benefit. Their face value can reach €10 per day worked, of which part is borne by the employee (~€1.09) and the other by the employer. They are exempt from social contributions and tax under conditions.

✅
Tax and social regime Exempt from NSSO and personal income tax if the employer share does not exceed €6.91 per voucher and the employee share reaches at least €1.09. Maximum total face value: €10.
📅
1 voucher per day actually worked No voucher on days of leave, sickness or telework if not counted by the employer. Validity of one year, electronic format mandatory.
💰
Annual net gain For an employee who works ~220 days/year: ~€6.91 × 220 = ~€1,520 of net purchasing power (to be used for food and dining).

2. Eco vouchers — the ecological benefit

Eco vouchers are purchase vouchers usable only for ecological products or services (bicycle, A+++ appliances, gardening, public transport, etc.). They are often granted once a year, in June.

🌱
Annual ceiling Maximum €250 per year per employee. Electronic format. Validity 24 months.
✅
Tax regime Exempt from NSSO and personal income tax — that's €250 pure net added to your annual pay.

3. Gift vouchers and one-off bonuses

The employer can grant exempt gift vouchers on certain specific occasions (Saint Nicholas, Christmas, marriage, retirement, seniority). Ceilings differ depending on the reason (typically €40 per child for Saint Nicholas, €40 per year for Christmas/New Year as a general rule).

To this are added one-off bonuses linked to a personal event (marriage: €245, retirement: variable depending on seniority), generally exempt under conditions.

4. The company car — the emblematic benefit

The company car remains one of the most powerful optimization levers for profiles enjoying private use of the vehicle. But the tax regime has tightened sharply since the 2023 reform: only zero-emission cars (100% electric) keep a fully advantageous tax regime.

⚠️ Combustion / hybrid cars
Regime tightening every year
❌ Tax deductibility falling for the employer (down to 0% for non-electric models ordered from 2026)
❌ Benefit in kind calculated on the value of the vehicle + CO2
❌ Employer CO2 contribution rising sharply
✅ 100% electric cars
Regime preserved until 2027 (transition)
✅ 100% deductibility on the employer side until 2027 (then progressive phase-out)
✅ Minimal benefit in kind (the CO2 coefficient is nil)
✅ Home charging point possible and deductible
⚠️ The benefit-in-kind calculation

The benefit in kind that you pay in personal income tax is calculated on the basis: catalogue value × CO2 coefficient × 6/7, with an annual floor revalued each year. For an electric car, the CO2 coefficient is at the floor (0.75 times the reference base in 2026). For a recent combustion car, it can reach 1.5 times this base.

🎯 Maximize your pay without changing jobs

The Decisio quiz analyzes your profile and recommends the most relevant levers.

Take the quiz →

5. The cafeteria plan — personalized flexibility

A cafeteria plan allows the employee to convert part of their pay (the 13th month, bonuses, gift vouchers) into benefits chosen from a menu: car, electric bike, multimedia subscription, additional days of leave, group insurance top-up, etc.

🎯
Budget-neutral principle for the employer The employer sets a budget (e.g. your gross 13th month). You choose how to transform it. Each benefit has an "equivalent employer cost" that determines how many units you can convert.
💡
The trade-off to make Converting a gross amount into an exempt extra-legal benefit can multiply the perceived value by 1.5 to 2x. But some conversions reduce social rights (lower legal pension). To be simulated precisely.

6. The bicycle and the bicycle mileage allowance

If you use a bicycle (classic, electrically assisted or speed pedelec) for home-work commuting, you can benefit from a bicycle mileage allowance exempt from NSSO and personal income tax, capped at €0.35/km in 2026 (maximum exempt amount, subject to annual revaluation).

The employer can also provide the bicycle (purchase or leasing) with enhanced tax deductibility. Combined with a mileage allowance, it is one of the most generous optimization levers for short to medium trips.

7. Group insurance — supplementary pension, 2nd pillar

The employer can finance a group insurance (company supplementary pension scheme) that builds up capital for your retirement. Employer premiums are deductible for corporate tax, and the exit capital is taxed at a preferential rate at the time of retirement (10% if active until legal age, more if early exit).

📊
The 80% rule The sum of legal pension + supplementary pension cannot exceed 80% of the last gross salary. This ceiling conditions the maximum amount deductible on the employer side.
💰
Taxation at exit Capital built up by employer contributions: 10% if withdrawn at the legal pension age. Capital built up by personal contributions: 16.5% if withdrawn at 60, 10% at the legal age. On top of that come the 1% levy (Inami) + municipal surcharge.

8. The other levers to know

📱
Mobile phone / subscription / home internet Packages exempt under certain conditions (mixed use). Low flat-rate benefit in kind (~€36/year for mobile, ~€60/year for internet) if private use is limited.
🏠
Flat-rate telework allowance Maximum €166.03/month (2026, indicative amount) exempt from NSSO and personal income tax, provided you actually work in telework at least 1 day/week on average and respect the NSSO conditions.
🎯
Collective bonus CLA 90 Bonus linked to a collective company objective. 2026 ceiling: ~€3,580 gross. Social regime: 13.07% on the employee side + 33% on the employer side. The net drops to around €2,200 - €2,400 depending on your income tax bracket.
📈
Warrants and stock options Specific tax regime for warrants (immediate taxation at 18% of the initial value, excluding future capital gains). Riskier tools but useful for large bonuses among executive profiles.
🎓
Training paid by the employer Professional training directly linked to your role is deductible for the employer and not taxable on the employee side. Includes partial MBAs, IT certifications, professional training.

Overall strategy — how to combine all this

1
Audit your current pay slip List everything you receive: gross, bonuses, meal vouchers, eco vouchers, car, mobile phone, telework allowance. Calculate the estimated net value of each item.
2
Identify the missing free items Start with the benefits that your employer can grant you without significant additional cost: telework allowance, bicycle mileage allowance, eco vouchers, capping meal vouchers at €10.
3
Ask for a cafeteria plan if possible If your employer has a cafeteria policy, simulate the conversion of your 13th month. Otherwise, request it formally at the next review. It is a current HR topic and increasingly accepted.
4
Check your 2nd and 3rd pension pillar Employer group insurance (2nd pillar) + personal tax pension savings (3rd pillar, 2026 ceiling: €1,050 to €1,350 depending on the chosen scheme) = important long-term tax levers.
5
Negotiate the package, not just the gross At your next review, don't just ask for +X% of gross. Present an alternative package: +€Y of meal vouchers, cafeteria plan, company bike. Many employers prefer this lever (less costly for them in the long run).

In summary — the key points

  • The Belgian gross/net gap leaves a lot of room for extra-legal benefits
  • Meal vouchers (€10/day) + eco vouchers (€250/year) = €1,500 to €1,800 typical annual net
  • Company car = still very advantageous only as 100% electric since the reform
  • Cafeteria plan = smart conversion of the 13th month into exempt benefits
  • Bicycle + bicycle mileage allowance (€0.35/km) = powerful lever for short trips
  • Group insurance (2nd pillar) = supplementary pension capital taxed at only 10% at legal age
  • Telework allowance up to ~€166/month exempt — often forgotten
  • CLA 90 bonus up to ~€3,580 gross/year with a preferential social regime
  • When negotiating: think overall package, not just gross
🕐 Last checked: May 2026 — Ceilings, rates and rules change every year. Check the updated amounts on the NSSO website, the FPS Finance website and with your HR department.

Official sources

NSSO — Extra-legal benefit schemes
FPS Finance — Benefits in kind
FPS Employment — CLA 90 bonus
FPS Finance — Pension savings (3rd pillar)