Evaluating an Expat Job Offer

Start With the Offer, Not the Headline Salary

Put the offer into three columns: gross pay, deductions from the employee's pay, and employer costs. The first two show what reaches the worker. The third matters when an employer is deciding where a role can be based, but it is not money the worker receives.

PlainGlobalPay uses OECD Taxing Wages scenarios and OECD purchasing-power-parity factors for standardized comparisons across 38 OECD countries. Those scenarios are useful for testing a like-for-like salary, but they do not replace the tax rules, allowances, visa costs, or housing market for one particular move.

Use this guide to frame the questions for an offer. Then model the same salary and household assumptions in the calculator before treating a country ranking as a personal result.

What the OECD Data Shows

What it tells you: The OECD Taxing Wages publication calculates the total tax wedge for standardized worker profiles across all 38 member countries. This includes income tax, employee social security contributions, and employer social security contributions. For a single worker earning the national average wage, the tax wedge ranges from under 20% (Chile, Colombia, Mexico) to over 50% (Belgium, Germany, Austria). PlainGlobalPay separately models employee deductions and take-home across fixed salary levels; those outputs are not the employer-inclusive OECD tax wedge.

What it doesn't tell you: OECD models use standardized assumptions about deductions and credits. Real-world tax liabilities depend on individual circumstances: filing status, number of dependents, sources of income, and available deductions. Two workers with the same gross salary in the same country may have very different tax burdens.

How to use it: Browse country profiles on PlainGlobalPay to see tax wedge breakdowns at your salary level. Use the comparison tool to evaluate two countries side by side. Check the take-home calculator for specific salary scenarios.

Purchasing Power: Beyond Nominal Salaries

PPP (Purchasing Power Parity) adjustments are critical for meaningful international comparison. A salary of $50,000 in the US and €70,000 EUR in Germany may look similar at market exchange rates, but the cost of everyday goods and services differs significantly. OECD PPP factors account for these differences by measuring what a unit of currency actually buys in each country.

PlainGlobalPay uses household final consumption PPP factors, which are better suited to household spending than GDP-based PPP. PPP factors are national averages, so they do not capture the difference between a major city and a smaller place in the same country.

When using PlainGlobalPay data, treat PPP-adjusted figures as the best available approximation for national-level comparison, but research city-level costs separately for your specific relocation scenario.

Social Contributions: The Hidden Cost

In many OECD countries, social security contributions (pension, health insurance, unemployment insurance) represent a larger share of the tax wedge than income tax. France, for example, has relatively moderate income tax rates but very high mandatory social contributions that fund comprehensive healthcare, pensions, and unemployment benefits. The total employer cost of a French worker earning the average wage is approximately 45% above the gross salary due to employer-side social contributions.

Understanding social contributions is important because they represent a tradeoff: countries with high contributions typically provide more comprehensive public services (healthcare, pension, childcare). A lower-tax country may require you to purchase private insurance and save for retirement independently, potentially offsetting the tax advantage.

A Five-Step Offer Check

1. Compare at your salary level. Use the calculator with the actual offer, not a national average. Progressive tax means a $50,000 scenario can differ materially from a $150,000 scenario.
2. Apply the PPP adjustment. Compare take-home pay in PPP-adjusted terms rather than nominal terms. A lower nominal amount can still have greater purchasing power in a lower-cost country.
3. Value benefits separately. Higher tax wedges can fund healthcare, pensions, or childcare that would otherwise be paid privately. Keep those benefits visible in the comparison.
4. Research city-level costs. PPP is a national average. Check housing and other local costs for the specific place where the role would be based.
5. Get personal advice before acting. PlainGlobalPay supports comparison, not personal tax planning. For a cross-border move, consult a qualified adviser familiar with both jurisdictions.

Frequently Asked Questions

Where does PlainGlobalPay get its tax data?

OECD Taxing Wages (2025 data) for tax wedge calculations, OECD PPP for PPP, OECD Average Wages for benchmarks, and Tax Foundation for statutory top marginal rates.

How accurate are international salary comparisons?

OECD calculations at 67-167% of average wage are reliable. Extrapolations above carry more uncertainty. PPP adjustments reflect national averages. Consult a tax advisor for precise personal calculations.

Why does take-home pay vary so much between countries?

Three factors: income tax rates (0% to 55%+), mandatory social contributions (5-25%), and purchasing power differences. The total tax wedge ranges from under 20% to over 50% across OECD countries.