A Quantitative Developer (C++ / Python) earning the median salary of €79K in the Netherlands takes home approximately € 53.473/year (€ 4.456/month) after Box 1 Income Tax, using 2026 rates.
2026 median salary for each level in the Netherlands, and what it leaves after Box 1 Income Tax. Standard employee, no 30% ruling. 2026 rates.
| Level | Gross / year | Take-home / year | Per month | Effective rate |
|---|---|---|---|---|
| Junior | € 57.000 | € 42.608€ 3.551/mo | € 3.551 | 25.2% |
| Mid-level | € 81.000 | € 54.353€ 4.529/mo | € 4.529 | 32.9% |
| Senior | € 108.000 | € 66.230€ 5.519/mo | € 5.519 | 38.7% |
| Lead / Principal | € 137.000 | € 79.253€ 6.604/mo | € 6.604 | 42.2% |
The biggest pay step is Senior to Lead / Principal: € 29.000 more a year before tax, of which € 13.023 reaches take-home. 55% of that raise goes to Box 1 Income Tax, against an average 39% on the Senior salary, because the extra pay is taxed at the top of your bands rather than spread across all of them.
Around the headline median, the middle half of Quantitative Developer (C++ / Python) salaries in the Netherlands run from € 79.000 to € 80.000 a year, which is € 53.473 to € 53.913 after Box 1 Income Tax.
The table above uses the Quantitative Developer (C++ / Python) median. Enter your own gross salary below for a precise figure.
2026 Box 1 tax year
35.75% up to €38,883. 37.56% up to €78,426. 49.50% above. The 30% ruling excludes part of your salary from Box 1 entirely.
Which year of your 5-year ruling term?
The 2024 plan to step the ruling down to 20% then 10% was reversed: for 2026 it stays a flat 30% tax-free for the full 5-year term, whichever year you're in.
Common salaries:
With 30% ruling
€65,466/yr
€5,455/month
Without ruling (standard Box 1)
€53,473/yr
€4,456/month
Annual take-home pay (with 30% ruling)
€65,466
Per month
€5,455
Per week
€1,259
Effective tax rate
17.1%
Tax-free ruling allowance
€23,700
How your €79,000 is split
€65,466
82.9%
€13,534
17.1%
Don't forget vakantiegeld (holiday allowance)
Dutch employers must pay at least 8% of your gross salary as holiday allowance, usually €6,320/year on this salary, paid as a lump sum around May. Many job ads quote gross pay excluding this, so check whether the figure you were offered already includes it.
| Gross salary | €79,000 |
| 30% ruling tax-free allowance | €23,700 |
| Taxable income (Box 1) | €55,300 |
| Box 1 tax before credits | -€20,067 |
| General tax credit (algemene heffingskorting) | €1,479 |
| Labour tax credit (arbeidskorting) | €5,053 |
| Net take-home (annual) | €65,466 |
Calculations use 2026 Box 1 rates (35.75% / 37.56% / 49.50%) and assume standard working-age employment. The 30% ruling is modelled as a flat 30% tax-free allowance for the full 5-year term (the previously legislated 30-20-10 step-down was reversed for 2026); it drops to a flat 27% from 2027 onward, which this calculator does not model. Eligibility for the ruling (recruitment from abroad, specific-expertise salary threshold, prior residency distance test) is not verified by this tool. Includes the 2026 general tax credit (algemene heffingskorting) and labour tax credit (arbeidskorting). Does not account for the health insurance premium you pay your insurer, pension contributions, or Box 2/3 income. For precise advice consult a Dutch tax adviser or the Belastingdienst.
Permanent median
€ 79.000
€ 53.473 take-home
Contract median
€ 663/day
≈ € 145.860 gross a year
At a median € 663/day, contract work grosses about € 145.860 a year over 220 billable days, 85% more than the € 79.000 permanent median. That premium has to pay for what an employer would otherwise cover: paid holiday and sick days, pension contributions, and the gaps between contracts.
Contract and permanent benchmarks come from separate samples, so treat the gap as a guide rather than a like-for-like quote. See Quantitative Developer (C++ / Python) contract rates and contractor take-home →
A Quantitative Developer (C++ / Python) earning the median salary of €79K in the Netherlands takes home approximately € 53.473 per year (€ 4.456 per month) after Box 1 Income Tax, using 2026 rates.
On a median Quantitative Developer (C++ / Python) salary of €79K, the effective deduction rate (Box 1 Income Tax) is 32.3%, leaving € 53.473 as take-home pay.
A senior Quantitative Developer (C++ / Python) in the Netherlands earns a median € 108.000 a year and takes home approximately € 66.230 (€ 5.519 per month) after Box 1 Income Tax, an effective rate of 38.7%.
A junior Quantitative Developer (C++ / Python) in the Netherlands earns a median € 57.000 a year and takes home approximately € 42.608 (€ 3.551 per month) after Box 1 Income Tax, an effective rate of 25.2%.
The biggest pay step is Senior to Lead / Principal: € 29.000 more a year before tax, of which € 13.023 reaches take-home. 55% of that raise goes to Box 1 Income Tax, against an average 39% on the Senior salary, because the extra pay is taxed at the top of your bands rather than spread across all of them.
At a median € 663/day, contract work grosses about € 145.860 a year over 220 billable days, 85% more than the € 79.000 permanent median. That premium has to pay for what an employer would otherwise cover: paid holiday and sick days, pension contributions, and the gaps between contracts. Contract and permanent benchmarks come from separate samples, so treat the gap as a guide.
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