Most countries with universal healthcare pay for it through some combination of taxes and mandatory insurance premiums, but the specific mix varies widely. The four main models used around the world each balance public funding, employer contributions, and individual payments differently. Understanding these systems helps explain why universal coverage doesn’t look the same everywhere and why some countries spend far more than others for similar outcomes.
The Four Basic Funding Models
Every universal healthcare system falls roughly into one of four categories, though many countries blend elements from more than one.
The first is the Beveridge model, where the government owns most hospitals, employs doctors, and pays for everything through general taxation. The United Kingdom’s National Health Service is the classic example. Citizens pay no premiums and face little to no cost at the point of care. Spain and New Zealand use similar structures. The money comes from the same pool as roads and schools: income taxes, sales taxes, and other government revenue.
The second is the national health insurance (or single-payer) model. The government doesn’t own hospitals or employ most doctors, but it acts as the sole insurance provider, collecting taxes and using them to pay private providers directly. Canada runs this way at the provincial level, as does South Korea. Patients choose their own doctors, but there’s only one payer processing claims.
The third is the Bismarck model, built on mandatory employer-based insurance. Germany pioneered this approach in the 1880s, and it’s also used in France, Japan, and Belgium. Workers and employers split the cost of premiums that go to nonprofit insurance funds (called “sickness funds” in Germany). Everyone must enroll, and the funds cannot deny coverage or charge more based on health status.
The fourth is the out-of-pocket model, which isn’t really a system at all. It describes what happens in countries too poor or too disorganized to build one of the above structures. People pay cash for whatever care they can afford. No wealthy democracy relies on this model as its primary system.
How Tax-Funded Systems Work in Practice
In countries like the UK, funding flows through the national budget. Parliament decides each year how much to allocate to the NHS, and that money comes from income taxes, payroll taxes, and a smaller national insurance contribution that workers and employers pay. There’s no separate health insurance bill, no network restrictions, and no claims process. You show up, get treated, and leave.
Australia uses a hybrid approach. The base system, called Medicare, is funded partly through a dedicated income tax levy of 2% on taxable income. Australians who earn above a certain threshold and don’t hold private insurance also pay a surcharge. For the 2025-26 tax year, that surcharge kicks in at $101,001 for singles and $202,001 for families, starting at 1% and rising to 1.5% for the highest earners. This nudges higher-income residents toward private coverage, which relieves pressure on the public system.
The practical result in tax-funded systems is that healthy, high-earning workers subsidize care for the elderly, the poor, and the chronically ill. This is by design. Because everyone pays in through taxes regardless of whether they use services in a given year, costs are spread across the entire population.
How Mandatory Insurance Systems Work
Germany’s system looks more familiar to Americans because it’s built around insurance, but with critical differences. About 90% of Germans are covered through statutory health insurance funds. Premiums are set as a percentage of income (currently around 14.6%), split roughly evenly between worker and employer. You don’t choose how much coverage to buy. The benefits package is standardized by law, and insurers must accept everyone.
Higher earners in Germany can opt out of the statutory system and buy private insurance instead, which sometimes offers faster access to specialists. But the statutory system covers everything from hospital stays to mental health to prescription drugs, with modest copays.
Switzerland takes a different path. Every resident must purchase health insurance from competing private insurers, but the government heavily regulates what those plans must cover and subsidizes premiums for lower-income households. Insurers cannot profit on the basic benefits package. This creates a system where private companies administer coverage, but the rules ensure universality. Switzerland spends more than most European countries on healthcare, and residents feel the cost directly through their monthly premiums.
Taiwan’s Three-Way Cost Split
Taiwan’s National Health Insurance, launched in 1995, uses a single-payer structure with a detailed formula for dividing costs among employees, employers, and the government. For most private-sector workers, the split is 30% paid by the employee, 60% by the employer, and 10% by the government. Civil servants pay the same 30% share, but their government employer picks up the remaining 70%.
The system adjusts for different circumstances. Union members pay 60% of their premiums, with the government covering 40%. Farmers and fishermen pay just 30%, with the government subsidizing 70%. Military conscripts, low-income households, and veterans pay nothing at all.
This layered approach means the funding burden shifts based on employment type and income. Taiwan’s system covers virtually the entire population and is often cited as one of the most efficient single-payer models in the world, with administrative costs far lower than those in the United States.
What These Countries Actually Spend
The United States spent 17.2% of its GDP on healthcare in 2024, far more than any other nation and without achieving universal coverage. Germany, the next highest spender among OECD countries, spent 12.3% of GDP. Most countries with universal systems cluster between 9% and 12% of GDP, delivering comparable or better health outcomes at significantly lower cost per person.
Several factors explain the gap. Countries with universal systems typically negotiate drug prices centrally, set fee schedules for medical procedures, and limit administrative overhead by reducing the number of payers and billing systems. A single-payer model like Canada’s doesn’t need the army of billing specialists that American hospitals employ to navigate dozens of private insurers with different rules.
The tradeoff is that tax-funded and single-payer systems sometimes have longer wait times for non-emergency procedures. Countries manage this through triage systems that prioritize urgent cases and, in some cases, by allowing private insurance to offer faster access for those willing to pay.
Where Private Insurance Fits In
Universal coverage rarely means the government pays for everything. In most countries, the public system covers hospital care, doctor visits, and emergency services, but leaves gaps that private insurance fills.
In Canada, roughly two-thirds of the population holds private insurance to cover prescription drugs, dental care, and vision care, none of which are fully included in the public system. In Australia, private insurance covers dental, vision, choice of hospital room, and the fees that exceed what Medicare reimburses for surgery. The UK’s NHS is more comprehensive than most, but about 10% of Britons still carry private insurance for quicker access to elective procedures and specialists.
This layered structure is common worldwide. The public system guarantees a floor of coverage for everyone, and private insurance provides extras or convenience for those who want them. It’s a fundamentally different role for private insurers than in the US, where private coverage is the primary system for most working-age adults.
Why Costs Keep Rising Everywhere
Every universal system faces the same pressure: aging populations need more care, new treatments cost more, and taxpayers resist higher contributions. OECD projections suggest that investing in “healthy ageing” strategies, such as preventive care and chronic disease management, could slow the growth of health spending as a share of GDP and reduce demand for both healthcare workers and long-term care services.
Countries respond to budget pressure in different ways. Some cap hospital budgets annually. Others use national formularies to negotiate drug prices, buying medications in bulk at rates far below what American insurers pay. Japan adjusts its fee schedule every two years, lowering reimbursement rates for procedures that have become routine and increasing them for services the government wants to encourage. These levers give universal systems a degree of cost control that fragmented, market-based systems lack.
No country has solved healthcare costs permanently, but the range of approaches shows that universal coverage is compatible with many different economic philosophies. Tax-funded, insurance-based, and hybrid systems all achieve universal access. The common thread isn’t a single funding mechanism but a political commitment to covering everyone, backed by rules that prevent insurers from cherry-picking healthy customers or charging the sick more.