US 401k vs European pension: what 6% buys today

By Skyler Bissell · October 29, 2026

Seattle gives our single professional $2,160 of current tax relief for a $9,000 traditional retirement contribution. A London worker can get relief too. The useful comparison starts by separating your own saving, your employer's contribution and the public pension underneath both. Calling all of that a “pension” makes two offer letters much harder to read.

A US 401(k) is an employer-sponsored retirement savings plan with an individual account. A European pension can mean a public benefit earned through insurance records, a workplace scheme, or personal retirement saving. Europe has no single equivalent. Compare a 401(k) with the destination's workplace plan, then compare Social Security with its public pension separately.

Follow each payment to its destination

The distinction matters when an employer says its pension is generous. An account contribution can be checked against a statement. A public pension entitlement needs an insurance record and the country's benefit formula. A defined benefit workplace scheme needs its own accrual rules. The word “contribution” alone tells you little about what you will receive.

For an international offer, keep those records alongside salary and take-home. Our hidden paycheck pillar explains the broader comparison of compensation that never lands in your bank account. Retirement deserves a separate line because its payment date is so different from rent or groceries.

What voluntary saving changes this year

Here is one controlled example: a single worker aged 35 to 44, no children, earning $150,000 in the US and the exchange-rate-converted salary in Europe, requesting 6% voluntary retirement saving. These professional-income examples sit above typical local pay. We use the committed exchange-rate snapshot dated October 26, 2026, with the calculator's salary rounding.

Each city is calculated twice, with the contribution and with it set to zero. The final column is the difference between annual tax bills. The contributions shown fit the modeled deduction room in these cases. They exclude employer funding and mandatory pension charges.

New York's relief exceeds Seattle's because state and city income taxes change the value of the deduction. London restores some personal allowance as the contribution reduces adjusted net income. HMRC's adjusted-net-income guidance explains that connection; the allowance starts shrinking above £100,000. A large tax reduction can reflect a steep tax band.

Berlin's row assumes qualifying supplementary retirement saving within the engine's remaining deduction room, such as a Basisrente contribution. The German Finance Ministry's Basisrente explanation describes that capped deduction. It does not describe every German workplace pension. The statutory pension contribution remains separate, and an ordinary investment account does not automatically qualify.

These are current-year estimates. They exclude future withdrawal taxes, investment performance, fees and employer-specific terms. Payroll insurance stays unchanged in all four paired calculations. The UK example therefore includes no extra National Insurance saving from a salary-sacrifice arrangement. A comparison that quietly adds those savings would be pricing a different contract.

The US already has public retirement insurance

A 401(k) sits alongside Social Security. The Social Security Administration's 2026 contribution base sets the employee and employer rates at 6.2% each, on covered wages up to $184,500. That finances old-age, survivor and disability insurance. Medicare is another payroll charge, so a whole FICA line should never be labeled retirement saving.

Traditional 401(k) deferrals reduce current federal taxable income while remaining subject to Social Security and Medicare taxes, as the IRS participant guide explains. The ordinary employee deferral ceiling is $24,500 for 2026 under the IRS annual limits. Our worker is below the catch-up ages and below that ceiling.

The employer match belongs on another line. The tax reduction in the table comes from the employee's own contribution; no employer has handed over that amount. Ask for the actual match formula, eligible pay and vesting schedule. A headline percentage can conceal a contribution requirement or exclude part of your compensation.

The IRS vesting rules say your own contributions are always fully owned by you. Employer contributions can follow a vesting schedule. For someone considering another move, the portion retained on departure matters more than the largest number in the benefits brochure.

Germany buys pension rights through a public formula

Germany's ordinary statutory pension rate is 18.6% in 2026. The German pension-rate notice sets the rate, and Social Code VI, section 168 splits it equally for ordinary employees. The employee share is 9.3%. Contributions stop increasing at the annual earnings ceiling of €101,400, confirmed by BMAS's 2026 social-insurance limits.

That employee payment earns rights under the public system. Deutsche Rentenversicherung's funding explanation describes current contributions and federal funding paying current pensions. There is no personal investment pot equal to the sum deducted from your wages.

The benefit calculation uses earnings points. Under the BMAS pension formula, a year of insured earnings at the national average earns one point. Your record, retirement timing and the applicable pension value then matter. A contribution rate alone cannot tell an arriving worker their eventual monthly pension.

Our Berlin example pays €18,526 in combined employee social insurance. That includes health, care and unemployment cover as well as pension. Treating the entire amount as money accumulating for retirement would overstate the pension payment. Treating it all as money with no benefits attached would miss what the insurance buys.

The UK workplace minimum depends on which earnings count

A UK defined contribution workplace pension is closer to a 401(k) account than Germany's public pension is. Under the usual automatic-enrolment minimum, the employer pays at least 3% and total contributions reach 8%; the employee side is normally 5%, including applicable tax relief. GOV.UK's workplace contribution guide specifies that most schemes apply these rates to earnings between £6,240 and £50,270. An employer can offer more generous terms.

Read “qualifying earnings” carefully. It differs from the whole salary. Our table's voluntary contribution uses the full gross salary, so it is a separate illustration from the automatic-enrolment minimum. Comparing those percentages without their earnings bases can make a modest offer look much larger.

For a new arrival, enrolment timing also matters. GOV.UK's joining rules generally require automatic enrolment for eligible workers from age 22 to State Pension age earning at least £10,000, and allow postponement for up to three months. Ask when contributions begin before assuming the first payslip includes them.

Norway supplies another reason to avoid a single “European pension” column. The Norwegian Ministry of Labour's pension guide separates National Insurance, occupational pension and personal saving. The workplace arrangement sits on top of the public system. An Oslo offer needs both described, even when the public contribution is already buried in a payroll total.

Ask for the pension document with the offer

For the US offer, request the plan summary and match schedule. For the European offer, request the workplace scheme's contribution basis and benefit type. Write down what comes out of your salary, what the employer adds, when ownership becomes unconditional and how the eventual benefit is determined. Keep the public insurance record separate from that workplace document.

Our employer contributions by country ranking provides context for employer-side statutory charges, including charges unrelated to pensions. The New York vs Berlin comparison puts current taxes beside household expenses. Neither substitutes for an individual pension forecast.

If you already have a US account, the administrative question belongs in what happens to your 401(k) when you move abroad. This comparison concerns what the next job pays into retirement and what today's deductions do to your budget.

FAQ

Can I opt out of a UK workplace pension?

Yes. Automatic enrolment permits an opt-out. GOV.UK's opt-out rules say leaving within one month normally returns the contributions already paid; later payments usually remain in the pension. Eligible workers are generally re-enrolled every three years. That choice differs from paying compulsory public social-insurance contributions.

Will pension tax relief arrive automatically in my UK payslip?

It depends on the scheme. With net pay, contributions come out before income tax. With relief at source, the provider adds basic-rate relief, and higher-rate taxpayers may need to claim more from HMRC. HMRC's pension tax-relief guide explains the difference. The table shows an annual modeled tax difference. The timing of relief depends on your scheme and any claim you make.

Does the table describe a Roth 401(k)?

No. The US rows assume traditional pre-tax contributions. Under IRS 401(k) guidance, designated Roth contributions are included in current taxable income, so the upfront tax reduction shown here does not apply. A Roth comparison needs a different tax treatment; this page does not forecast either account's eventual after-tax value.

Bring the pension schedule to the same conversation as the salary. Then compare what both offers leave for everyday life. You will have a clearer annual budget and a much better question for the pension administrator: what rights does this job add to the retirement provision I already have?

Method: current annual tax calculations using the existing single-worker scenario and current model rules, checked October 29, 2026. New York retains a 2025 state schedule and a flat city-rate approximation; this is a mixed-year comparison baseline. Statutory sources are linked beside their claims. No employer match, future pension payment, investment return or cross-border treaty outcome is assumed. Individual scheme eligibility and tax treatment require checking against your own documents. Calculation methodology.