Press Kit
How much of a US lottery jackpot do winners actually keep?
ChamTax (참택스) is a free calculator that shows the after-tax take-home amount of a US Powerball or Mega Millions jackpot, for 51 different countries of residence, in 35 languages. This page is a quick reference for journalists and bloggers — feel free to use the table below in your coverage.
Data snapshot as of 2026-08-18 · maintained alongside chamtax.com
Take-home percentage by country
- Highest take-home: 25 countries net 70% — including Australia, Canada, the UK, Germany, and Japan — because their tax authorities don't treat lottery winnings as taxable income at all.
- Lowest take-home: Netherlands (32.2% net) and Denmark (42.9% net), where domestic tax stacks on top of the 30% US withholding instead of being offset by it.
- US and South Korea: US residents keep ~58.3% after federal + average state tax; South Korea residents keep ~53.6% after the US withholding and Korea's own progressive bracket.
Reference scenario: a large lump-sum jackpot (~$100M USD). US federal withholding (30%, or graduated up to 37% for US residents) is applied first, then each country's own tax treatment of foreign lottery income — after any Foreign Tax Credit the country's law/treaty allows. Numbers come directly from ChamTax's live calculation engine, not manual estimates re-typed by hand.
| Country | Take-home | Total tax | Confidence |
|---|---|---|---|
| Australia | 70% | 30% | verified |
| Bangladesh | 70% | 30% | verified |
| Canada | 70% | 30% | verified |
| China | 70% | 30% | verified |
| Germany | 70% | 30% | verified |
| France | 70% | 30% | verified |
| Hong Kong | 70% | 30% | verified |
| Indonesia | 70% | 30% | verified |
| Ireland | 70% | 30% | verified |
| Japan | 70% | 30% | verified |
| Kyrgyzstan | 70% | 30% | verified |
| Kazakhstan | 70% | 30% | verified |
| Malaysia | 70% | 30% | verified |
| Norway | 70% | 30% | verified |
| Nepal | 70% | 30% | verified |
| New Zealand | 70% | 30% | verified |
| Singapore | 70% | 30% | verified |
| Sweden | 70% | 30% | verified |
| Taiwan | 70% | 30% | verified |
| United Kingdom | 70% | 30% | verified |
| Uzbekistan | 70% | 30% | verified |
| Vietnam | 70% | 30% | verified |
| South Africa | 70% | 30% | verified |
| India | 61% | 39% | verified |
| United States | 58.3% | 41.7% | verified |
| Finland | 53.8% | 46.2% | verified |
| South Korea | 53.6% | 46.4% | verified |
| Turkey | 50% | 50% | verified |
| Denmark | 42.9% | 57.1% | verified |
| Netherlands | 32.2% | 67.8% | verified |
| Myanmar | 70% | 30% | approximate |
| Mexico | 65% | 35% | approximate |
| Philippines | 65% | 35% | approximate |
| Sri Lanka | 64% | 36% | approximate |
| Poland | 64% | 36% | approximate |
| Italy | 52.8% | 47.2% | approximate |
| Cambodia | 70% | 30% | unverified estimate |
| Laos | 65% | 35% | unverified estimate |
| Thailand | 65% | 35% | unverified estimate |
| Mongolia | 60% | 40% | unverified estimate |
| Pakistan | 53.5% | 46.5% | unverified estimate |
| Russia | 48% | 52% | verified (treaty suspended) |
Note on Netherlands, Russia, and Laos: these three apply no Foreign Tax Credit — each country's own tax (Netherlands 37.8%, Russia 22%, Laos 5%) stacks in full on top of the 30% US withholding rather than being offset by it, unlike every other country above. Laos's total (35%) looks unremarkable only because its own domestic rate happens to be small — the stacking mechanism is the same as Russia's and the Netherlands'.
Full methodology, per-country citations, and a machine-readable version of this table (JSON/CSV) are published as an open dataset: github.com/semilee123456-ui/us-lottery-tax-data (also mirrored on Kaggle). For all 50 states + DC as well (not just this page's country-of-residence table), plus static chart images, see the full public dataset hub.
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Citation
ChamTax (chamtax.com).
Embeddable widget
Free to embed on your own blog or site — a small live take-home calculator with a link back to ChamTax. No sign-up, no API key.
Copy-paste this into your page:
<iframe src="https://chamtax.com/widget-embed.html" width="100%" height="420" style="border:0; max-width:480px; display:block;" loading="lazy" title="ChamTax mini calculator"></iframe>Writing for a specific audience? Add ?country= and/or ?amount= to the src URL to set the widget's starting values instead of the default (Korea, $100M) — e.g. widget-embed.html?country=vn&amount=250 for a Vietnamese-audience blog covering a $250M jackpot. Supported country codes: kr, us, vn, cn, in, ph, jp.
ChamTax is an informational simulator, not a lottery retailer or tax advisory service. Figures are reference estimates; actual tax liability depends on individual circumstances — consult a qualified tax professional.