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HEAD-TO-HEAD TAX COMPARISON · 2026

COUNTRY A New Zealand VS COUNTRY B Belgium

Side-by-side analysis of income tax, effective rates, and take-home pay for New Zealand and Belgium in 2026.

Daniel · CountryTaxCalc Updated October 2026 Tax Comparison 2026
Calculate your take-home → See all comparisons →
OVERVIEW
New Zealand and Belgium both treat private investment gains lightly compared with many OECD countries: New Zealand has no general capital gains tax (though its FIF regime taxes foreign shares), while Belgium has taxed gains on financial assets at 10% since 1 January 2026 (the first €4,855 of gains each year is exempt). Despite this similarity on investment gains, their income tax systems diverge substantially. New Zealand's progressive system — ranging from 10.5% to 39% — combined with the ACC earner levy produces effective rates that are consistently lower than Belgium's at every wage income level. At $100,000 income: New Zealand costs approximately $28,600 (28.6% effective, income tax plus ACC levy) versus Belgium's $46,000 (46% effective, including a 7% municipal surtax) — New Zealand saves $17,400 per year. At $150,000: New Zealand saves approximately $28,200/year. Belgium's higher burden reflects its uncapped 13.07% ONSS social security contribution (which applies without limit on all income) and steep 50% top bracket activated at a relatively modest €51,070 threshold. Belgium counters with comprehensive social benefits (universal healthcare, unemployment insurance), the expat regime for inbound taxpayers (up to 35% of gross pay treated as a tax-free allowance for qualifying new hires), and the EU's institutional and professional ecosystem centred on Brussels. New Zealand's higher income tax savings — $17,400/year at $100,000 — represent a significant annual difference, though Belgium's broader social safety net and European lifestyle appeal to many globally mobile professionals.
Section 01

The Big Picture

Top-line rates and effective take-home for a typical earner — including income tax, social contributions, and applicable surcharges.

🇳🇿
COUNTRY A
New Zealand
TAX RATE
10.5–39%
Progressive Income Tax + 1.75% ACC Levy + 0% CGT on Most Assets

Progressive income tax: 10.5% on first NZD 15,600; 17.5% on NZD 15,600–53,500; 30% on NZD 53,500–78,100; 33% on NZD 78,100–180,000; 39% above NZD 180,000; ACC earner levy 1.75% (capped at NZD 156,641); no capital gains tax on shares, ETFs, and most investments (2-year bright-line for residential property only); FIF regime: 5% deemed return on foreign shares above NZD 50,000 threshold; KiwiSaver 3.5% minimum employer + 3.5% employee; 15% GST; worldwide income taxed for tax residents

🇧🇪
COUNTRY B
Belgium
TAX RATE
25–50%
Progressive + 13.07% ONSS SS (no ceiling) + 10% CGT on Private Financial Assets

Income tax 25–50% (4 brackets: 25% to €16,720; 40% to €29,510; 45% to €51,070; 50% above); municipal surtax ~7% on income tax (varies 0–9% by commune); employee ONSS social security 13.07% with NO ceiling — applies on all employment income without limit; 10% CGT on private gains from financial assets from 2026 (the first €4,855 of gains each year is exempt); 30% flat tax on dividends and interest; professional deduction; special tax regime for inbound taxpayers (expat regime: up to 35% of gross pay tax-free for qualifying foreign hires, no annual cap); 21% standard VAT; worldwide income taxed

TYPICAL ANNUAL DIFFERENCE
Moving from Belgium → New Zealand at $100,000 annual income (New Zealand advantage on wages; NZ has no general CGT, Belgium taxes financial-asset gains at 10%)
$17,400

That's $1,450/month New Zealand advantage at $100K wages (Belgium: ONSS uncapped produces steeply higher rates at all income levels) back in your pocket

Section 02

Tax Savings by Income Level

Net take-home after all income tax, social contributions, and surcharges — for a single employee with no dependents.

GROSS INCOME
🇳🇿 NZ TAX
🇧🇪 BE TAX
SAVINGS
10-YEAR
$50,000
~$11,300 (income tax + ACC levy 1.75% capped at NZD 156,641; income taxed at 10.5%/17.5%/30% bands; $50K ≈ NZD 83.3K at about NZD 1.67 per USD; effective ~22.6%)
~$16,800 ($50K ≈ €46.3K; federal income tax ~$9,190 + municipal surtax (7%) ~$640 + ONSS and special social security contribution ~$6,940 → effective 33.6%)
New Zealand saves ~$5,500 at $50K income
$55,000
$75,000
~$20,000 (income tax + ACC levy 1.75% capped at NZD 156,641; income tax 10.5%/17.5%/30%/33% bands; $75K ≈ NZD 125K at about NZD 1.67 per USD; effective ~26.7%)
~$31,000 ($75K ≈ €69.4K; federal income tax ~$19,140 + municipal surtax (7%) ~$1,340 + ONSS and special social security contribution ~$10,560 → effective 41.4%)
New Zealand saves ~$11,000 at $75K income
$110,000
$100,000
~$28,600 (income tax + ACC levy 1.75% capped at NZD 156,641; income tax 10.5%/17.5%/30%/33% bands; $100K ≈ NZD 166.7K at about NZD 1.67 per USD; effective ~28.6%)
~$46,000 ($100K ≈ €92.6K; federal income tax ~$30,010 + municipal surtax (7%) ~$2,100 + ONSS and special social security contribution ~$13,860 → effective 46.0%)
New Zealand saves ~$17,400 at $100K income
$174,000
$150,000
~$47,600 (income tax + ACC levy 1.75% capped at NZD 156,641; income tax bands up to 33%, approaching the 39% top bracket above NZD 180K; $150K ≈ NZD 250K at about NZD 1.67 per USD; effective ~31.7%)
~$75,800 ($150K ≈ €138.9K; federal income tax ~$51,740 + municipal surtax (7%) ~$3,620 + ONSS and special social security contribution ~$20,400 → effective ~50.5%)
New Zealand saves ~$28,200 at $150K income
$282,000
$100,000 in foreign shares (FIF vs Belgium CGT)
New Zealand: ~$1,650/year FIF tax (5% deemed return × 33% top rate on $100K foreign share portfolio above the NZD 50,000 cost threshold; applies annually on portfolio value not realised gains)
Belgium: 10% of realised gains above an annual exemption of €4,855 (about $5,450) on private share and fund investments since 1 January 2026; no FIF-equivalent annual deemed-return tax; dividends attract 30% withholding
Belgium is usually lighter on a $100K foreign share portfolio: NZ FIF ~$1,650/year versus Belgium 10% of realised gains above the €4,855 (about $5,450) annual exemption. Belgium would only cost more if realised gains exceeded about $22,000 a year; dividends (30% withholding in Belgium) are not included
NZ FIF ~$16,500 over ten years on a $100K portfolio; Belgium 10% of realised gains above the €4,855 annual exemption, so lower unless realised gains exceed about $220,000 over the decade (if spread evenly, using the exemption each year)
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🇳🇿

New Zealand Pros & Cons

+ PROS
  • Substantially lower income tax at all wage income levels: New Zealand's progressive income tax system — starting at 10.5% and reaching 39% only above NZD 180,000 (~$108,000) — produces effective rates that are consistently 11–19 percentage points lower than Belgium's at comparable incomes. The absence of an uncapped social security contribution equivalent to Belgium's 13.07% ONSS is the primary driver. At $100,000: NZ effective rate is 28.6% versus Belgium's 46%. This is not a marginal difference — the $17,400 annual saving represents a significant improvement in take-home pay for most professional income levels.
  • No capital gains tax on domestic shares and most assets: New Zealand has no capital gains tax on shares, ETFs, and most investment assets (excluding the FIF regime for foreign shares above NZD 50,000). Gains from selling New Zealand shares, residential investment property held more than 2 years, and most other capital assets are completely tax-free. Belgium now taxes private financial-asset gains at 10%, whereas New Zealand's no-CGT rule applies more broadly (including to NZ residential property after the 2-year bright-line, business sales, and other capital disposals) — making NZ lighter on CGT scope for domestic assets versus Belgium.
  • Simple and transparent tax system: New Zealand's income tax system is among the simplest in the OECD. There are five progressive brackets, a straightforward ACC levy, and no payroll taxes, no municipal surtaxes, no commune-varying rates, and no complex social security tier calculations. Belgium's system — with ONSS, the federal income tax, municipal surtax varying by commune, and potential ESTS eligibility — requires more tax planning. New Zealand's simplicity reduces compliance costs and makes financial planning more predictable.
  • ACC earner levy is capped and limited: New Zealand's ACC earner levy (1.75% of liable earnings) is capped at NZD 156,641 (~$94,000) — beyond which no additional ACC levy applies. The levy funds the Accident Compensation Corporation, providing no-fault personal injury insurance covering all residents. While Belgium's ONSS funds more comprehensive social benefits, the ACC levy's cap and low rate mean it adds a modest, bounded cost to NZ income tax — not an uncapped escalating burden like Belgium's ONSS.
− CONS
  • FIF regime creates modest tax on large international share portfolios: New Zealand's Foreign Investment Fund (FIF) regime applies a 5% deemed return on the value of offshore share portfolios held by NZ residents where the total foreign holding exceeds NZD 50,000 (about $30,000 USD). At the top 39% tax rate, the FIF creates an effective annual tax of approximately 1.95% of portfolio value. Belgium has no FIF equivalent — Belgian private investors pay no annual deemed-return tax; only realised gains are taxed, at 10% above an annual exemption of €4,855. For New Zealand residents with large international equity portfolios, this is a meaningful annual tax cost absent from Belgium's system.
  • GST applies to most goods and services at 15%: New Zealand's Goods and Services Tax (GST) is 15% on nearly all goods and services with no reduced rates. Belgium's standard VAT is 21% (higher than NZ's 15%), but Belgium applies 6% and 12% reduced rates on food, housing, and many essential services. For everyday consumption, New Zealand's simpler 15% rate is lower than Belgium's 21% standard rate, but Belgium's broad use of reduced rates partially offsets this difference for basic consumption.
  • Limited expat incentive regime: New Zealand has no salary allowance equivalent to Belgium's expat regime (up to 35% of gross pay tax-free for qualifying foreign hires, for an initial 5 years with renewal possible). New Zealand does give new migrants a transitional-resident exemption of up to four years for most foreign-sourced income (not for employment or services income). While New Zealand's standard income tax rates are lower than Belgium's, a high-earning expatriate who qualifies for the Belgian regime could, in some scenarios, face a similar effective rate in Belgium during the regime period (on our own rough illustration, about 30-34% all-in at $150,000, versus about 32% in New Zealand).
  • Progressive top bracket at relatively modest NZD threshold: New Zealand's 39% top bracket activates at NZD 180,000 (~$108,000), which for high-earning professionals is a moderate threshold. The 33% bracket (applying from NZD 78,100 ~$47,000) covers a wide income band. For professionals earning above NZD 150,000, both the 33% and 39% rates provide lower effective rates than Belgium's combined 50% + 13.07% ONSS — but New Zealand's progression to the 39% rate happens at a moderate income threshold rather than only at very high incomes.
🇧🇪

Belgium Pros & Cons

+ PROS
  • Low CGT on private share and fund investments — no holding period: Belgium's flat 10% tax on private investment gains (since 1 January 2026, with the first €4,855 of gains each year exempt) is one of Europe's more attractive investor regimes. Unlike New Zealand's FIF regime (which taxes large foreign share portfolios annually at an effective 1.95%/year), Belgium has no equivalent mechanism — only realised gains are taxed, at 10%. On a €500,000 portfolio gain: Belgium tax = about €49,500 (10% after the €4,855 annual exemption); New Zealand under FIF would apply annual deemed-return taxation. Belgium can still win for very large international investment portfolios.
  • Expat regime for qualifying relocators: under Belgium's special tax regime for inbound taxpayers, an employer can treat up to 35% of a qualifying foreign hire's gross remuneration as a tax-free reimbursement of costs proper to the employer, with no annual cap (since the law of 18 December 2025, retroactive to 1 January 2025; previously 30%, capped at €90,000/year), for an initial 5 years with renewal possible. At $150,000 (about €138,900), up to about €48,600 is tax-free for income tax, which would bring Belgium's all-in effective rate (income tax plus social security) to roughly 30-34% on our own rough illustration (not modelled by our calculator: 35% of gross pay removed from the taxable base before tax, the 7% municipal surtax kept, and employee social security taken on either 70% or 100% of pay, because it is not established whether the allowance also reduces the social-security base), close to New Zealand's ~32%. Combined with its 10% CGT on private gains, Belgium can be competitive with New Zealand for high-earning expats during the initial 5-year regime period.
  • Comprehensive European social safety net: Belgium's tax contributions fund universal healthcare (mutualiteiten/mutualités) with minimal co-payments, unemployment benefits (65% of the last capped salary for the first three months, 60% up to month 12, then a flat rate, limited to a maximum of 24 months for claims since March 2026), generous paid parental leave, extensive eldercare, and comprehensive disability coverage. While New Zealand provides public healthcare and ACC accident coverage, Belgium's safety net is more comprehensive — particularly for healthcare coverage, unemployment benefits, and eldercare. For residents who expect to use these services, Belgium's social safety net can offset the higher income tax cost.
  • Brussels professional and institutional ecosystem: Belgium's capital hosts the European Parliament, European Commission, NATO, and hundreds of international organisations and multinationals. This institutional density creates a unique professional environment with high concentrations of globally mobile professionals, international schools, multilingual services, and European career pathways unavailable in New Zealand. For internationally oriented professionals, Belgium's location offers network and career benefits that factor into the total value of relocation beyond pure tax savings.
− CONS
  • ONSS has no ceiling — Belgium's income tax burden is exceptionally high for wage earners: Belgium's 13.07% employee ONSS applies on all employment income without limit. At $200,000 income (~€185,000), ONSS alone costs approximately €24,190. Combined with Belgium's 50% income tax on income above €51,070 and the municipal surtax, Belgium's effective rate for a high-earning wage earner without ESTS reaches approximately 50–53% — 20+ percentage points above New Zealand. For straightforward wage earners, Belgium is one of the most expensive OECD countries.
  • 30% dividend withholding reduces investment tax advantage: While gains on shares are taxed at only 10% in Belgium, dividend distributions from shares are subject to 30% withholding tax. New Zealand does not have a 30% dividend withholding — NZ dividends are taxed as ordinary income (at progressive rates of 10.5%–39%) but often include imputation credits from already-paid corporate tax, reducing the effective additional burden significantly. For dividend-income strategies, Belgium's 30% withholding compares unfavourably to New Zealand's imputation credit system.
  • High inheritance taxes — particularly for non-direct heirs: Belgium's inheritance taxes are among Europe's highest and vary by region. In Brussels and Wallonia: direct heir rates reach 30% on the highest bracket; non-direct heir rates can reach 80%. For New Zealand residents, there is no inheritance tax or estate duty — New Zealand eliminated its estate duty in 1992. For intergenerational wealth transfer, New Zealand's 0% inheritance tax versus Belgium's regional inheritance taxes is a substantial advantage for high-net-worth families.
  • Expat regime eligibility conditions are strict: Belgium's special tax regime for inbound taxpayers requires an employer application, a minimum gross salary of €70,000 (lowered from €75,000 from 2025) and qualifying employment in Belgium; advisers also report a prior-residence test (no Belgian residence or Belgian-taxed professional income, and no residence within 150 km of the border, in the preceding 60 months) and that the regime covers employees and company directors but not the self-employed. Most freelancers, remote workers, and self-employed professionals relocating to Belgium would not qualify. The initial 5-year period (renewal possible) also means the benefit ends, after which Belgium's standard rates apply — significantly higher than New Zealand's for wage earners above €100,000.
FAQ

Frequently Asked Questions

Which country has lower income taxes — New Zealand or Belgium?

New Zealand is significantly cheaper for wage earners at all income levels. At $100,000: New Zealand ~$28,600 (28.6% effective) versus Belgium ~$46,000 (46% effective, including municipal surtax) — New Zealand saves $17,400/year. At $150,000: New Zealand saves approximately $28,200/year. Belgium's high burden stems from its uncapped 13.07% ONSS social security and 50% top income tax bracket. Belgium's expat regime (up to 35% of gross pay tax-free for qualifying new hires for 5 years) partially narrows the gap for eligible professionals.

Do both New Zealand and Belgium tax capital gains?

New Zealand has no general capital gains tax; Belgium taxes private gains from financial assets at a flat 10% since 1 January 2026 (the first €4,855 of gains each year is exempt; gains accrued before 2026 are not taxed). Belgium: 10% on private share, ETF and fund gains, no holding period; special rules apply for substantial holdings. New Zealand: 0% CGT on most assets including NZ shares and domestic investment. However, New Zealand applies the FIF (Foreign Investment Fund) regime to foreign share portfolios above NZD 50,000, taxing an annual 5% deemed return at ordinary income rates (~1.95%/year at 39%). For domestic shares and small foreign portfolios, New Zealand is lighter (0% versus up to 10%). For large international equity portfolios, Belgium's tax on realised gains can be lighter than NZ's FIF tax, depending on how much of the portfolio is sold each year.

What is New Zealand's FIF regime and how does it affect investors?

The Foreign Investment Fund (FIF) regime applies to New Zealand tax residents with foreign share portfolios (non-Australian, non-NZ listed) costing more than NZD 50,000 in total (a government bill proposes raising this to NZD 100,000, so check Inland Revenue). Under the Fair Dividend Rate method, 5% of opening market value is treated as taxable income regardless of actual gains, dividends, or losses. At NZ's 33% marginal rate, this creates an effective annual cost of approximately 1.65% of portfolio value — even in years when the portfolio falls in value. Belgium has no FIF-equivalent: only realised gains are taxed, at 10% (after an annual exemption of €4,855). For large passive investors in foreign shares, Belgium's treatment can be lighter than New Zealand's FIF regime, depending on realised gains.

Is Belgium or New Zealand better for remote workers?

New Zealand is generally better for remote workers on income tax. New Zealand's lower effective rates save remote workers with $100K+ income $17,000–$28,000/year compared to Belgium. Belgium's ESTS regime can narrow this for qualifying professionals (requires employer sponsorship), but most independent remote workers and freelancers won't qualify for ESTS. New Zealand also has a simpler tax system with no commune-varying surtaxes or complex social security tiers. Belgium's advantage is quality-of-life (European location, Brussels' international ecosystem) rather than tax efficiency.

How does Belgium's Expatriate Special Tax Status (ESTS) compare to New Zealand's tax rates?

Belgium's expat regime (the special tax regime for inbound taxpayers) lets an employer treat up to 35% of gross pay as a tax-free reimbursement of employer-specific costs, with no annual cap (previously 30%, capped at €90,000/year), for an initial 5 years with renewal possible. At $150,000 (about €138,900) that is up to about €48,600 tax-free for income tax; a standard employee's effective Belgian rate of about 50.5% (including municipal surtax) would fall to roughly 30-34% on our own rough illustration (not modelled by our calculator, so not engine-verified: 35% of gross pay removed from the taxable base before tax, the 7% municipal surtax kept, and employee social security taken on either 70% or 100% of pay, because it is not established whether the allowance also reduces the social-security base). New Zealand's standard rate at the same income is approximately 32%. On that illustrative basis a qualifying earner's Belgian rate would be roughly level with New Zealand's. However, the regime requires an employer application, a €70,000 minimum salary, and strict prior-residence conditions, so most independent remote workers and freelancers would not qualify, and Belgium's low CGT plus the regime can be competitive for professionals with significant investment income alongside their salary.

What is Belgium's ONSS and why does it increase Belgium's effective tax rate so much?

ONSS (Office National de Sécurité Sociale) is Belgium's mandatory social security contribution for employees, charged at 13.07% of gross employment income with no ceiling. Unlike New Zealand's ACC levy (1.75%, capped) or most countries' social security contributions (which cap at a wage base), Belgium's ONSS applies without limit to all employment income. At $200,000: ONSS alone costs ~$26,140. This is the primary reason Belgium's effective rate for high earners ($80K+) is significantly above New Zealand's — the uncapped ONSS adds approximately 13% to Belgium's effective rate at all income levels, producing total effective rates of about 46–51% for upper-middle-income earners.

Does New Zealand have inheritance tax?

No — New Zealand abolished its estate duty (inheritance tax) in 1992. There is currently no inheritance tax, estate tax, or gift duty in New Zealand. Belgium, by contrast, has regional inheritance taxes that can reach 80% for non-direct heirs (and up to 30% for direct heirs in Brussels and Wallonia on the highest brackets). For intergenerational wealth transfer, New Zealand's 0% inheritance tax is a significant advantage over Belgium — especially for high-net-worth families planning estate transfers.

How do KiwiSaver and Belgian pension contributions compare?

KiwiSaver is New Zealand's voluntary workplace savings scheme: employees contribute a minimum of 3.5% of gross salary (from April 2026), with employers required to match at least 3.5%. Total minimum contribution is 7% of salary (3.5% each from April 2026). Contributions are from post-tax income; investment returns are taxable within the fund at a capped rate (28% for most PIR). Belgian pension: state pension funded through ONSS contributions (part of the 13.07%); no mandatory funded private pension equivalent to KiwiSaver. Belgium's state pension replaces approximately 50–60% of last salary for full-career workers. KiwiSaver builds a private capital balance; Belgium's ONSS-funded pension provides a defined income stream — different structures rather than directly comparable.
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