Is Japanese tax higher than in Europe and the US? This is a frequently asked question during consultations on overseas expansion and asset transfers. However, the answer changes depending on whether you compare the top income tax rate, corporate tax rates, take-home pay, or the country's total tax revenue. This is because they are all referred to as "tax burden," but the targets being looked at are different.

This paper organizes the differences in systems based on official documents verified on September 17, 2026, covering Japan, the United States, the United Kingdom, Germany, and France. This is not a ranking table representing all Western countries. We consider the order for creating a comparison table by separating corporations and individual owners, including local taxation, social insurance, and the treatment of foreign income.

Listing only national taxes skews the basis for comparison.

In the United States, consideration does not end with federal taxes alone; the systems of the state where business is conducted must also be checked. Japan has local corporate taxation in addition to corporate tax, and Germany considers trade tax alongside corporate tax. The view that there is a single tax rate per country fails to represent a company's final tax burden.

The comparison of the effective corporate tax rates by the Ministry of Finance also clearly states the premises, such as California for the United States and the national average of local taxes for Germany. In addition, adjustments are made when a part of the tax is deductible as expenses. Even official comparison tables are conditional.Ministry of Finance "International Comparison of Corporate Taxation"、IRS "State Tax Information"

This table does not show the magnitude of tax amounts. The burden can only be compared after assuming the same taxable income, the same business structure, and the same family composition.

Another distinction we want to make is the tax base. Even if accounting profits are the same, taxable income after applying deductible expenses, loss treatment, and income deductions is not necessarily the same. We also clarify whether the tax amount is based on sales or taxable income. If we compare "effective burdens" without aligning the denominators, even differences in business profit structures end up looking like differences in tax systems.

Looking at the numbers in the same official comparison table

Below is the corporate effective tax rate as of January 2026, published by the Ministry of Finance. It is an index that adjusts for the tax deductibility of taxes, including widely levied national and local taxes, and does not represent the actual tax rate of individual companies.

The local tax assumptions are the standard tax rate for Japan, California for the United States, and the 2024 national average for Germany. Regarding cases where companies are subject to the special corporate tax for defense taking effect in Japan in April 2026, the same document notes it as 30.64%. You cannot just cut out the table and use it to claim that all companies in Japan are 29.74%. The importance of aligning the timeframes and targets is evident here as well.Ministry of Finance: "Comparison of Effective Corporate Tax Rates - As of January 2026"

A corporation cannot be formed with just the name "company."

Particularly in the United States, it is necessary to separate the legal vehicle from the federal tax treatment. The IRS explains that depending on the number of members and the election made, an LLC may be treated as a corporation, a partnership, or an entity disregarded as separate from its owner. Even with a plan to "set up a local entity," the timing and the party subject to taxation can differ.IRS "Tax Classification of LLCs"

The UK government has stated that UK tax-resident companies are subject to corporation tax on their worldwide profits. In contrast, French corporate taxation relies importantly on a territorial scope based on where the business is conducted. It cannot be generalized that all developed countries tax worldwide income in the same way. Exemptions, tax treaties, and foreign tax adjustments are considered thereafter.UK Government Corporation Tax、French tax authorities "Scope of corporate income tax"

The German Ministry of Finance documents also distinguish between taxation on the corporation itself and the distribution of profits from the corporation to individuals. In an owner's financial planning, it is necessary to view the process not as ending at the company's after-tax profit, but all the way through to receiving it as salary or dividends.Federal Ministry of Finance of Germany "An ABC of Taxes"

Take-home pay includes social insurance.

For companies considering recruitment or overseas assignments, the salary amount and the total cost of employment are different. This is because there are employer burdens in addition to the individual's taxes and social insurance. On the other hand, if the owner mainly receives dividends or capital gains from stock sales, the burden rate for wage earners does not apply directly.

The OECD's Taxing Wages compares burdens—including income tax and employee and employer social security contributions—in relation to total labor costs. It also takes into account cash benefits for families. The 2026 edition mainly compares the systems and wages of 2025. It is necessary to read the report without confusing the publication year with the comparison year, while aligning whether individuals are single or have children, and what the wage level is.OECD Taxing Wages 2026

Therefore, the same top income tax rate does not necessarily mean the same take-home pay. Conversely, even in countries where the burden is low for average wage earners, it is not necessarily advantageous for those planning large asset sales. "What income level you live on" determines which comparative metric you should use.

The US and the UK are specifically updating their offshore income guidance

In principle, the United States taxes the worldwide income of its citizens as well as its tax residents. Moving abroad alone does not mean your tax reporting obligations with the U.S. are severed. This is why nationality and tax residency are verified as separate items.IRS "Taxation of US Residents"、IRS "International Individual Tax Matters"

In the UK, starting April 6, 2025, a new 4-year foreign income and gains regime is being introduced to replace the traditional remittance basis of taxation. We will review the application conditions and application process, such as non-residence for the immediately preceding 10 years. The explanation found in old migration articles stating that "income is not taxed if left abroad" can no longer be applied directly to current new income.HMRC "4-year FIG regime"

Nor do consumption tax rates serve as a simple comparison for the cost of living.

Japan and European countries use a VAT-type consumption tax, whereas the general consumption tax in the United States is a state and local retail sales tax. The OECD also distinguishes between the two when making comparisons. It is necessary to check not only the size of the tax rate, but also which goods and services are subject to the tax and whether businesses can deduct input tax on purchases.OECD "Consumption Taxation in the United States"

For overseas expansion, compare the company's total expenses and the owner's take-home pay; for emigration, household disposable income; and for investment, the balance of income and expenditure from acquisition to sale. Aligning the endpoints for each purpose in this way allows for comparisons that are not influenced by the image of a country. Tax rates are appropriately viewed as components used in those specific calculations.

This paper compares the systems of representative countries. Individual tax exemptions, surtaxes, state and local systems, social security agreements, etc., must be verified depending on the target transactions and the applicable fiscal year.