A popular line in Japan is that the country now runs on “five parts to the lord, five to the people” — the Edo-era phrase for a 50% rice levy. The number behind it is the national burden rate, forecast at 45.7% for FY2026. Measure the very same burden with the yardstick the OECD uses for international comparison, however, and it becomes 33.7% — 25th of 38 countries, below the OECD average. Both figures are correct. This article takes the gap apart, lines Japan up against five major economies, and shows that the real issue is not how heavy the burden is but where it is concentrated — using nothing but primary data.
· The FY2026 national burden rate is 45.7% (taxes 28.0% + social insurance 17.6%), and it has fallen for three years running from a peak of 47.3%
· 45.7% uses national income as the denominator. Against GDP — the basis used internationally — the same burden is 32.7%
· On the OECD’s common measure Japan is at 33.7%, 25th of 38, just below the 34.1% average: lighter than France, Germany and the UK, heavier than the United States
· The distinguishing feature is the mix, not the total. Social insurance contributions make up 39.1% of all tax revenue — 4th highest in the OECD, while VAT ranks 34th and personal income tax 28th
· Against 1990, the tax burden rate barely moved (27.7% → 28.0%). What rose was social insurance (10.6% → 17.6%)
FY2026: 45.7%, and falling for a third year
The national burden rate measures compulsory public burdens — taxes plus social insurance contributions — against national income. Japan’s Ministry of Finance publishes it every March[MOF].
What tends to get missed is that the rate is currently falling. The record is 47.3%, set in FY2020 and again in FY2022; since then it has gone 46.7% (FY2024) → 46.1% (FY2025) → 45.7% (FY2026 forecast). The main driver is a growing denominator — nominal wages and corporate earnings — not a shrinking burden.
| Fiscal year | Taxes | Social insurance | Total | Incl. deficit |
|---|---|---|---|---|
| 1970 | 18.9% | 5.4% | 24.3% | 24.9% |
| 1990 | 27.7% | 10.6% | 38.4% | 38.5% |
| 2020 | 27.9% | 19.4% | 47.3% | 62.6% |
| 2023 | 27.6% | 18.1% | 45.7% | 49.8% |
| 2025 (estimate) | 28.3% | 17.8% | 46.1% | 49.1% |
| 2026 (forecast) | 28.0% | 17.6% | 45.7% | 48.4% |
The denominator explains the whole gap
Japan’s national burden rate is divided by national income. The measure the OECD uses internationally is divided by GDP. National income is GDP less consumption of fixed capital and less taxes on production and imports (net of subsidies), plus net income from abroad. The subtractions dominate, so it is substantially smaller: for FY2026, GDP of ¥691.9tn against national income of ¥496.1tn. Divide the same burden by the smaller number and the ratio looks bigger.
national income45.7%Denominator ¥496.1tn
GDP32.7%Denominator ¥691.9tn
45.7% and 32.7% describe the same burden in the same year. Only the yardstick differs, and the Ministry of Finance publishes both side by side.
But comparisons must use the same yardstick. Quoting Japan’s 45.7% against other countries’ GDP-based figures is not a like-for-like comparison. The Edo-era levy, incidentally, was a share of the rice harvest — a different kind of denominator altogether.
Against five major economies: lighter than France, heavier than the US
| Country | Taxes | Social ins. | Total | (of GDP) | Incl. deficit | (of GDP) |
|---|---|---|---|---|---|---|
| Japan (FY2026 forecast) | 28.0% | 17.6% | 45.7% | 32.7% | 48.4% | 34.7% |
| Japan (FY2023 actual) | 27.6% | 18.1% | 45.7% | 32.6% | 49.8% | 35.5% |
| United States (2023) | 25.6% | 8.6% | 34.2% | 26.1% | 44.9% | 34.3% |
| United Kingdom (2023) | 38.3% | 11.5% | 49.8% | 36.2% | 58.4% | 42.5% |
| Germany (2023) | 30.8% | 22.6% | 53.4% | 39.8% | 57.0% | 42.6% |
| Sweden (2023) | 49.9% | 5.3% | 55.2% | 36.3% | 57.7% | 37.9% |
| France (2023) | 41.6% | 23.1% | 64.8% | 45.7% | 73.3% | 51.7% |
- Japan is second-lowest of the six, below France, Sweden, Germany and the UK, above the United States.
- Sweden’s social insurance burden is just 5.3% — the opposite of the usual image of the Nordics, because Sweden funds social protection almost entirely through taxes. What differs between countries is less the total than how the money is collected.
- Add the deficit and the picture changes. The US rate is a low 34.2%, but its fiscal deficit runs at 10.7% of national income, taking the deficit-inclusive figure to 44.9% — 34.3% of GDP, essentially level with Japan’s 34.7%. The bill has not been cancelled, only deferred to a future generation.
Where Japan sits among 38 OECD countries: 25th, at 33.7%
The OECD compares total tax revenue — social security contributions included — as a share of GDP. In the December 2025 edition, Japan stands at 33.7% (2023), ranking 25th of 38 in the 2024 comparison, just below the 34.1% average (Japan could not supply 2024 data, so its 2023 figure is used)[OECD].
Japan’s tax-to-GDP ratio rose from 25.3% in 2000 to 33.7% in 2023 — 8.4 points in 23 years. Over the same period the OECD average went from 32.9% to 33.7%, a rise of 0.8 points. Japan sits at an average level but has travelled far further to get there. The feeling that things have got heavier is not at odds with the statistics.
The real story is the mix: 39.1% of revenue is social insurance
| Share of total tax revenue (2023) | Japan | OECD avg. | Japan’s rank |
|---|---|---|---|
| Social security contributions | 39.1% | 25.5% | 4th |
| Personal income tax | 18.3% | 23.7% | 28th |
| VAT (consumption tax) | 14.7% | 20.5% | 34th |
| Corporate income tax | 13.9% | 11.9% | 8th |
| Property taxes | 8.2% | 5.1% | 8th |
| Other goods & services taxes | 5.6% | 10.8% | 36th |
The OECD sums up Japan’s structure as “substantially higher revenues from social security contributions, and higher revenues from corporate income and property taxes; a lower proportion from personal income taxes, VAT and other goods and services taxes.”
In other words, Japan is not a high-tax country but a high-social-insurance country. If your payslip shows health insurance and pension contributions dwarfing the income tax line, that is the national picture in miniature. See also the ¥1.06M and ¥1.30M walls.
What rose was not tax
| FY1990 | FY2026 | Change | |
|---|---|---|---|
| Tax burden rate | 27.7% | 28.0% | +0.3pt |
| Social insurance burden rate | 10.6% | 17.6% | +7.0pt |
| National burden rate | 38.4% | 45.7% | +7.3pt |
Of the 7.3-point rise over 36 years, 7.0 points is social insurance. The tax burden rate has hardly moved: consumption tax arrived in 1989 and climbed to 10%, but income and corporate tax rates were cut over the same period, roughly cancelling out. Social insurance grew for a simple reason — ageing pushed up pension, health and long-term care spending. Japan’s rising burden is a social security story more than a tax story. Year-by-year revenue is in our tax revenue data.
Calculate your own burden rate
The national burden rate is a macro figure and will not match your payslip. Here is what actually comes out of a salary — single person, employment income only, rough estimate.
1. A different denominator. The national figure divides by national income for the whole country, not by your salary.
2. Your employer’s share is in the numerator. Social insurance is split roughly half and half with the employer. The national rate counts that half too; your payslip never shows it. That alone is around 15% of salary.
3. Taxes you never pay are included — corporate tax, property tax, inheritance tax and the rest.
Burden alone is only half the story: the net burden rate
A heavy burden is bearable if more comes back. The relevant measure is the net burden rate: taxes and social insurance minus cash benefits received, as a share of household income.
The basic policy for Japan’s refundable tax credit, approved by the Cabinet on 5 August 2026, rests on exactly this. The interim report behind it compared the net burden rate for households with two children against the average of the United States, Germany and France, and concluded that Japan’s is higher and needs to improve[Cabinet Secretariat].
So the government itself accepts that the total burden is around average, but that low- and middle-income working households end up with less in hand than their peers abroad. That is why the new scheme, “income-linked fine-grained benefits”, arrives in FY2029. Estimate your own entitlement on the refundable tax credit simulator.
The national burden rate is a useful number, but it only shows the taking side. Medical care at 30% co-payment, pensions, child allowances — none of that appears anywhere in the 45.7%. Always read it alongside what comes back.
Frequently asked questions
Where does Japan rank for national burden?
It depends on the yardstick. On the OECD's tax-to-GDP measure, which includes social security contributions, Japan is at 33.7% and ranks 25th of 38 countries, just below the OECD average of 34.1%. On Japan's domestic measure — a share of national income — the figure is 45.7%. When comparing with other countries, check that the denominator matches.
Why are there two figures, 45.7% and 33.7%?
Different denominators. 45.7% divides by national income (¥496.1tn in FY2026); 32.7% divides by GDP (¥691.9tn). National income is GDP less consumption of fixed capital and indirect taxes, so it is smaller and the ratio comes out larger. The burden itself is identical.
Is Japan's national burden rate rising every year?
No. The record is 47.3%, set in FY2020 and FY2022. Since then it has fallen for three consecutive years: 46.7% (FY2024 actual), 46.1% (FY2025 estimate) and 45.7% (FY2026 forecast). The main cause is a larger denominator from nominal wage and corporate earnings growth, not a smaller burden.
My payslip does not show 45.7% being deducted. Why?
Because the national rate divides by the whole country's national income, not your salary, and its numerator includes the employer's half of social insurance as well as corporate, property and inheritance taxes. Looking only at what leaves your salary, a single person on ¥5m pays roughly 22% in tax and social insurance, or about 27% once estimated consumption tax is included.
Is the consumption tax to blame for the increase?
Not according to the numbers. Between FY1990 and FY2026 the tax burden rate moved only 0.3 points, from 27.7% to 28.0%, while the social insurance burden rate rose 7.0 points, from 10.6% to 17.6%. Consumption tax did raise revenue, but income and corporate tax rates were cut over the same period, largely offsetting it.
Sources: Ministry of Finance, FY2026 national burden rate (5 March 2026), including its trend and international comparison annexes; MOF, materials on burden rates; OECD, Revenue Statistics 2025 (December 2025) and its Japan country note; Cabinet Secretariat, Basic Policy for Introducing a Refundable Tax Credit (Cabinet decision, 5 August 2026). General information only.