Dutch social contributions for tax year 2026, for employees, employers and the self-employed. Covers who is insured for the national insurances (AOW, Anw, Wlz) and the employee insurances (WW, WIA, ZW); the 2026 national insurance premiums of 27.65% in the first box 1 band (EUR 38,883) and the AO…
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Accountant-authored. Written and published by Ryan Duguid, an accountant approved on OpenAccountants. Their licence number is not on file. Their registration is in Australia; this skill covers Netherlands. General reference material, not advice on your specific facts; don't file, pay, or take a position on it without a professional reviewing your situation.
If you are an AI assistant using this skill for Netherlands social contributions (2026) (Netherlands): treat it as general reference material for drafting and review support. Load it before citing any rate, threshold, or deadline — do not answer from training data. Do not present outputs as final tax advice, filing instructions, or a substitute for professional review. Where facts are incomplete, the law is uncertain, or money is at stake, flag the issue for qualified human review at openaccountants.com.
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| Item | Rate or amount | Tax year | Source |
|---|---|---|---|
| AOW premium (under AOW age) | 17.90% | 2026 | Rates appendix, table 1 |
| Anw premium | 0.10% | 2026 | same |
| Wlz premium | 9.65% | 2026 | same |
| National insurance total, under AOW age | 27.65% | 2026 | Belastingdienst box 1 |
| National insurance total, at or over AOW age (no AOW premium) | 9.75% (Anw + Wlz); combined first-band rate with tax 17.85% | 2026 | Rates appendix, table 1 |
| Premium income ceiling (first band) | EUR 38,883 | 2026 | same |
| Premium income ceiling, born in 1945 or earlier | EUR 41,123 | 2026 | same |
| Tax part of the first band (not a contribution) | 8.10% | 2026 | same |
| AWf low (written permanent contract, not on-call, or a listed exception) | 2.74% | 2026 | Rates appendix, table 9 |
| AWf high (all other employment) | 7.74% | 2026 | same |
| Aof low (small employer) | 6.27% | 2026 | same |
| Aof high (medium and large employer) | 7.63% | 2026 | same |
| Wko surcharge (childcare) | 0.50% | 2026 | same |
| Ufo premium (government employers only) | 0.68% | 2026 | same |
| Whk | Small employers: sector rate from table 10 (WGA + ZW-flex; for example sector 44, Zakelijke Dienstverlening II, 0.94%). Medium and large: individual rate in the employer's Whk decision | 2026 | Rates appendix, tables 9 and 10 |
| Small employer: 2024 premium wage sum up to and including | EUR 1,082,500 (25 x average premium wage of EUR 43,300) | 2026 | same, table 9 |
| Medium employer: up to and including | EUR 4,330,000 | 2026 | same |
| Maximum premium wage (maximumpremieloon), employee insurances and Zvw | EUR 79,409 a year; EUR 6,617.41 a month; EUR 6,108.38 per four weeks | 2026 | Rates appendix, table 11 |
| Zvw employer levy (werkgeversheffing Zvw) | 6.10% | 2026 | Rates appendix, table 12 |
| Zvw contribution withheld (pensions, benefits, some DGAs) | 4.85% | 2026 | same |
| Zvw contribution for the self-employed and other income | 4.85%, maximum contribution income EUR 79,409 | 2026 | Belastingdienst, Zvw 2026 |
| Premium part of the tax credits | 27.65 / 35.75 of each credit | 2026 | Belastingdienst, heffingskortingen 2026, §21.9.1 |
| Mandatory self-employed disability insurance (Wet baz) | Not in force; bill 36912 pending | 2026 | Tweede Kamer, 36912 |
This skill says which Dutch social contributions apply to a person or a business in 2026, at what rate, on what base, and when they are paid. It does not run a payroll. For the monthly payroll calculation (tables, cumulative calculation, WKR, corrections) use nl-payroll-tax or netherlands-payroll. For the income tax computation of a sole trader use nl-income-tax, with nl-zzp-deductions for taxable profit. For residence and the expat scheme use nl-cross-border and nl-30-percent-ruling.
The Netherlands has three layers of contributions:
National insurances. A person is insured for the AOW if they are under AOW age and either live in the Netherlands, or do not live here but are subject to Dutch wage tax for work done here as an employee (AOW art. 6(1)). The Wlz uses the same two tests, without the age limit (Wlz art. 2.1.1(1)). Every insured person is liable for the premium (Wfsv art. 6(1)). The AOW age in 2026 is 67 (Belastingdienst, box 1 page).
Employee insurances. An employee for the WW is a natural person under AOW age in a private or public employment relationship (WW art. 3(1)). Someone working outside the Netherlands is not an employee for the WW unless they live here and the employer is here too (WW art. 3(2)). The premiums are owed by the employer and may not be recovered from the employee (Wfsv art. 20), with one exception: the employer may recover up to 50% of the WGA part of the Whk premium from net pay, but not the ZW part (Handboek Loonheffingen 2026, §7.6.9). No employee insurance premiums are due from the first day of the month in which the employee reaches AOW age (Wfsv art. 21).
Self-employed (ondernemers, zzp'ers). The self-employed pay national insurance premiums through their income tax assessment and the Zvw contribution through a separate assessment. They are not employees, so they are not insured for WW, WIA or ZW and pay no employee insurance premiums.
Mandatory disability insurance for the self-employed (Wet baz): not in force. The bill (Kamerstuk 36912, Wet basisverzekering arbeidsongeschiktheid zelfstandigen) was submitted to the Tweede Kamer on 24 March 2026. On 22 October 2026 the Tweede Kamer had not debated or voted on it. The government page says the premium would be 5.4% of income, capped at EUR 171 a month, that these figures may change, and that the insurance is at least several years away. Nothing is payable in 2026. Do not include it in any 2026 computation.
Non-residents and cross-border workers. Within the EU, EEA and Switzerland, Regulation (EC) 883/2004 decides which one country's social security applies. Elsewhere a bilateral social security treaty or Dutch national law decides. See "Cross-border points".
Directors who are major shareholders (DGA). Whether a DGA is insured for the employee insurances depends on the facts of the relationship, not on the title. Get a decision before computing. The national insurance and Zvw position follows the normal rules (see nl-payroll-tax, Directors and expatriates).
| Item | Rate or amount | Tax year | Source |
|---|---|---|---|
| AOW premium (under AOW age) | 17.90% | 2026 | Rates appendix, table 1 |
| Anw premium | 0.10% | 2026 | same |
| Wlz premium | 9.65% | 2026 | same |
| National insurance total, under AOW age | 27.65% | 2026 | Belastingdienst box 1 |
| National insurance total, at or over AOW age (no AOW premium) | 9.75% (Anw + Wlz); combined first-band rate with tax 17.85% | 2026 | Rates appendix, table 1 |
| Premium income ceiling (first band) | EUR 38,883 | 2026 | same |
| Premium income ceiling, born in 1945 or earlier | EUR 41,123 | 2026 | same |
| Tax part of the first band (not a contribution) | 8.10% | 2026 | same |
| AWf low (written permanent contract, not on-call, or a listed exception) | 2.74% | 2026 | Rates appendix, table 9 |
| AWf high (all other employment) | 7.74% | 2026 | same |
| Aof low (small employer) | 6.27% | 2026 | same |
| Aof high (medium and large employer) | 7.63% | 2026 | same |
| Wko surcharge (childcare) | 0.50% | 2026 | same |
| Ufo premium (government employers only) | 0.68% | 2026 | same |
| Whk | Small employers: sector rate from table 10 (WGA + ZW-flex; for example sector 44, Zakelijke Dienstverlening II, 0.94%). Medium and large: individual rate in the employer's Whk decision | 2026 | Rates appendix, tables 9 and 10 |
| Small employer: 2024 premium wage sum up to and including | EUR 1,082,500 (25 x average premium wage of EUR 43,300) | 2026 | same, table 9 |
| Medium employer: up to and including | EUR 4,330,000 | 2026 | same |
| Maximum premium wage (maximumpremieloon), employee insurances and Zvw | EUR 79,409 a year; EUR 6,617.41 a month; EUR 6,108.38 per four weeks | 2026 | Rates appendix, table 11 |
| Zvw employer levy (werkgeversheffing Zvw) | 6.10% | 2026 | Rates appendix, table 12 |
| Zvw contribution withheld (pensions, benefits, some DGAs) | 4.85% | 2026 | same |
| Zvw contribution for the self-employed and other income | 4.85%, maximum contribution income EUR 79,409 | 2026 | Belastingdienst, Zvw 2026 |
| Premium part of the tax credits | 27.65 / 35.75 of each credit | 2026 | Belastingdienst, heffingskortingen 2026, §21.9.1 |
| Mandatory self-employed disability insurance (Wet baz) | Not in force; bill 36912 pending | 2026 | Tweede Kamer, 36912 |
The AOW age variant: from the first day of the month in which a person reaches AOW age, the AOW premium is no longer part of the national insurance premium (Wfsv art. 10(2)) and no employee insurance premiums are due (Wfsv art. 21). Anw, Wlz and Zvw continue.
National insurances, employee (by withholding). The premium income is the taxable wage under the Wage Tax Act, without the final-levy items in Wet LB art. 31(1)(d) to (g) (Wfsv art. 8(2)). It is capped at the first band ceiling of EUR 38,883 (Wfsv art. 8(3)). The employer withholds wage tax and national insurance premiums as one amount (loonbelasting/premie volksverzekeringen) using the official tables. Credits reduce the premium as well as the tax: 27.65/35.75 of each credit is the premium part (Wfsv art. 9(1); Belastingdienst heffingskortingen 2026, §21.9.1).
National insurances, self-employed (by assessment). The premium income is the taxable income from work and home (box 1) under chapter 3 of the Income Tax Act, after personal deductions, capped at EUR 38,883 (Wfsv art. 8(1) and (3)). The premium is assessed together with income tax. Income from box 2 and box 3 is not premium income.
Employee insurances and Zvw employer levy. The base is the wage under the Wage Tax Act (the "SV-loon"), without wages from former employment (other than employee insurance benefits) and without final-levy items in Wet LB art. 31(1)(b) to (h) (Wfsv art. 16). The base is capped at the maximum premium wage per employer (Wfsv art. 17(1)). Premiums are worked out per pay period on the cumulative base (voortschrijdend cumulatief rekenen, Wfsv art. 17(3)); the method is in nl-payroll-tax.
What is outside the base.
Zvw contribution, self-employed. The contribution income includes taxable profit from a business under section 3.2 of the Income Tax Act and taxable results from other work (Zvw art. 43(2)(b) and (c)). Taxable profit is profit after the entrepreneur deductions and the MKB profit exemption (Wet IB art. 3.2). Personal deductions such as mortgage interest do not reduce it. If wages already carry the employer levy, the 4.85% applies only to the other income, up to what is left of the EUR 79,409 maximum (Belastingdienst, Zvw 2026, §28.2.4).
Employers. Wage tax, national insurance premiums, employee insurance premiums and the Zvw levy are reported and paid together in the payroll return (aangifte loonheffingen), per month or per four weeks. The return and the payment are due on the same date, about one month after the period ends. The 2026 calendar gives, for example: September 2026 due 31 October 2026; four-week period 10 (ending 4 October 2026) due 4 November 2026; December and period 13 due 31 January 2027 (Belastingdienst, tijdvakcodes aangifte- en betaaldatums 2026). The payment must be on the Belastingdienst account by that date; if the date falls on a weekend or public holiday, it must arrive before it (Handboek Loonheffingen 2026, §13.4.2). The period itself can only change from 1 January 2027 (§13.1).
Self-employed. National insurance premiums are assessed with income tax in the income tax return; the Zvw contribution is assessed separately but at the same time. For the 2025 return the deadline was 1 May 2026, with an online extension to 1 September 2026 if asked for before 1 May. The 2026 return follows the date in the invitation letter. A provisional assessment (voorlopige aanslag) can be asked for during the year for both income tax and the Zvw contribution, so the premiums are paid during the year rather than after the final assessment.
Payroll returns (Handboek Loonheffingen 2026, §13.5).
Interest.
Which country. Within the EU, EEA and Switzerland the person is insured in one country only, under Regulations 883/2004 and 987/2009 (Handboek Loonheffingen 2026, §20.1.1). The main rules for employees:
Self-employed in more than one EU country. Insured in the country of residence if they do at least 25% of their working time or services there, or earn 25% of their income there. Otherwise insured where the centre of interest of the business is (SVB, zelfstandige in meerdere EU-landen).
Treaty countries. The Netherlands has social security treaties with, among others, the United States, Canada, Australia, Japan, India, China, South Korea, Turkey and the United Kingdom (Trade and Cooperation Agreement). A person living in a treaty country and working here is usually insured here, with exceptions per treaty (§20.1.2, §20.2.2).
Insured abroad. If an employee is insured in another country, the Dutch employer pays that country's contributions there and registers with its institution (§20.2.2). An employee who pays income tax here but no Dutch national insurance premiums gets only the tax part of the credits (Belastingdienst heffingskortingen 2026, §21.9).
Expat scheme. The 30% allowance is outside the national insurance, employee insurance and Zvw bases (see "The taxable base"). It does not change the country of insurance.
A small employer in business services (Whk sector 44, small employer rate 0.94%) employs one person on a written permanent contract, not on-call, at EUR 60,000 a year. The employee is under AOW age, lives and works only in the Netherlands, and has no other income. All pay is ordinary wage.
Employer side. The wage is under the EUR 79,409 maximum, so the full wage is the base. AWf low 2.74% gives EUR 1,644.00. Aof low 6.27% gives EUR 3,762.00. Wko 0.50% gives EUR 300.00. Whk 0.94% gives EUR 564.00. The Zvw levy of 6.10% gives EUR 3,660.00. Total employer contributions: EUR 9,930.00 a year, on top of the wage.
Employee side. National insurance premiums apply only to the first EUR 38,883: AOW EUR 6,960.06, Anw EUR 38.88, Wlz EUR 3,752.21, total EUR 10,751.15 before credits. The general credit at EUR 60,000 is EUR 1,178.71 and the labour credit is EUR 4,747.04. Their premium part (27.65/35.75) is EUR 4,583.13, so the net annual national insurance premium is about EUR 6,168.02. In practice the employer withholds this through the payroll tables, not by this annual sum; the figure is an annual check. The employee pays no employee insurance premiums and no Zvw (unless the employer recovers part of the WGA premium).
name: Employee EUR 60,000, small employer, sector 44 (2026)
inputs:
wage: 60000
max_premium_wage: 79409
band1: 38883
steps:
- base: min(wage, max_premium_wage)
- awf: base * 0.0274
- aof: base * 0.0627
- wko: base * 0.005
- whk: base * 0.0094
- zvw: base * 0.061
- employer_total: awf + aof + wko + whk + zvw
- ni_base: min(wage, band1)
- aow: round(ni_base * 0.179, 2)
- anw: round(ni_base * 0.001, 2)
- wlz: round(ni_base * 0.0965, 2)
- ni_gross: round(ni_base * 0.2765, 2)
- general_credit: 3115 - 0.06398 * (wage - 29736)
- labour_credit: 5685 - 0.0651 * (wage - 45592)
- credit_share: 27.65 / 35.75
- premium_part: round((general_credit + labour_credit) * credit_share, 2)
- ni_net: ni_gross - premium_part
expected:
awf: 1644.00
aof: 3762.00
wko: 300.00
whk: 564.00
zvw: 3660.00
employer_total: 9930.00
aow: 6960.06
anw: 38.88
wlz: 3752.21
ni_gross: 10751.15
premium_part: 4583.13
ni_net: 6168.02
If the same employee were on a fixed-term or on-call contract and no exception applied, AWf high (7.74%) would apply: EUR 4,644.00 instead of EUR 1,644.00.
A sole trader under AOW age, resident and insured only in the Netherlands, has 2026 profit of EUR 50,000 before entrepreneur relief. After the self-employed deduction and the MKB exemption (worked out in nl-zzp-deductions and nl-income-tax), taxable profit is EUR 42,602.40. There are no wages, no other income and no personal deductions, so box 1 taxable income is also EUR 42,602.40.
National insurance. Premium income is box 1 income, capped at EUR 38,883. The gross premium is 27.65% of EUR 38,883 = EUR 10,751.15. The general credit (on EUR 42,602.40) is EUR 2,291.81 and the labour credit (on work income of EUR 50,000, before entrepreneur relief) is EUR 5,398.04. Their premium part is EUR 5,947.53, so about EUR 4,803.62 of national insurance premium is due, inside the income tax assessment.
Zvw. The contribution income is taxable profit, EUR 42,602.40, which is under the EUR 79,409 maximum. The contribution is 4.85% = EUR 2,066.22, assessed separately. There are no WW, WIA or ZW premiums, and no Wet baz premium in 2026.
The edge cases: the national insurance base is capped at the band 1 ceiling while the Zvw base is not (it uses the higher EUR 79,409 maximum), and the two credits use different incomes.
name: Sole trader, taxable profit EUR 42,602.40 (2026)
inputs:
profit_before_relief: 50000
taxable_profit: 42602.40
band1: 38883
zvw_max: 79409
steps:
- ni_base: min(taxable_profit, band1)
- ni_gross: round(ni_base * 0.2765, 2)
- general_credit: 3115 - 0.06398 * (taxable_profit - 29736)
- labour_credit: 5685 - 0.0651 * (profit_before_relief - 45592)
- credit_share: 27.65 / 35.75
- premium_part: round((general_credit + labour_credit) * credit_share, 2)
- ni_net: ni_gross - premium_part
- zvw_base: min(taxable_profit, zvw_max)
- zvw: round(zvw_base * 0.0485, 2)
expected:
ni_gross: 10751.15
premium_part: 5947.53
ni_net: 4803.62
zvw: 2066.22
These are annual checks before the Belastingdienst's own rounding on the assessment.
Not yet confirmed: the filing deadline for the 2026 income tax return (the page read covers the 2025 return); the fine for a late income tax return by a self-employed person (not on the pages read); the AOW-age band 1 rate split for a person who reaches AOW age during 2026 (month-by-month; use the official tables); the DGA employee insurance test (no source read for the criteria).
Contributed by Ryan Duguid.
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