The Danish pension supplement trap: why more income can leave you worse off in retirement

Imagine two retirees. Both receive the Danish state pension (folkepension). One has DKK 80,000 per year in additional pension income; the other has DKK 130,000. One is comfortable, the other ought to be doing better.

But those extra DKK 50,000 cost more than most people expect.

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What is pensionstillæg, and who receives it?

Pensionstillæg (the pension supplement) is a monthly top-up to the basic folkepension, paid automatically by Udbetaling Danmark. It sits on top of the basic state pension amount and is designed to ensure a minimum income level for retirees with limited other income.

In 2026 the figures are:

	Monthly	Annual
Folkepension basic amount	DKK 7,544	DKK 90,528
Pension supplement (single, maximum)	DKK 8,729	DKK 104,748
Pension supplement (married/cohabiting, maximum)	DKK 4,467	DKK 53,604

For a single retiree with no other income, the supplement is almost as large as the basic state pension itself. It is not a minor detail.

The supplement is income-dependent. The more you have in other income outside the folkepension, the smaller the supplement becomes. And this is where things start to get expensive.

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How it is calculated

The supplement is reduced when your other income — that is, all income outside the folkepension itself — exceeds a threshold.

For single retirees in 2026:

Other income	Pension supplement
Below DKK 99,200/year	Full supplement (DKK 8,729/month)
DKK 99,200 – 438,200/year	Reduced by 30.9% of the excess
Above DKK 438,200/year	No supplement

For married or cohabiting couples a combined income basis applies, with thresholds of approximately DKK 198,800 and DKK 534,000.

The 30.9% reduction rate means that for every DKK 10,000 your pension exceeds the DKK 99,200 threshold, you lose approximately DKK 3,090 per year in pension supplement.

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The hidden marginal tax

Here is the concrete calculation for the two retirees from the introduction. Both are single.

Person A — DKK 80,000 in other income:

Person A is below the DKK 99,200 threshold and receives the full supplement.

Item	Amount per year
Folkepension basic amount	DKK 90,528
Pension supplement (full)	DKK 104,748
Other income (pension, ATP, etc.)	DKK 80,000
Total gross income	DKK 275,276

Person B — DKK 130,000 in other income:

Person B is DKK 30,800 above the threshold (130,000 − 99,200 = 30,800).

The supplement is reduced by 30,800 × 30.9% = DKK 9,517 per year.

Item	Amount per year
Folkepension basic amount	DKK 90,528
Pension supplement (reduced)	DKK 95,231
Other income	DKK 130,000
Total gross income	DKK 315,759

Person B has DKK 50,000 more in gross pension income than Person A, but total gross income rose by only DKK 40,483 — because DKK 9,517 vanished through the supplement reduction.

And it does not stop there, because the pension supplement is itself taxable. The real net difference is even smaller.

The effective marginal rate in the reduction zone

For the DKK 30,800 Person B has in the reduction zone (DKK 99,200–130,000):

• Income tax: approx. 37% → DKK 11,396
• Lost pension supplement (net of tax): 30,800 × 30.9% × (1 − 37%) ≈ DKK 5,996
• Total lost: approx. DKK 17,392 out of DKK 30,800

That corresponds to an effective marginal rate of approximately 56–57% in this zone — and up to 67% for retirees with a higher local tax rate. By comparison, the normal marginal rate for basic-rate taxpaying retirees is around 37–38%.

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Who is at risk?

Not only the wealthy. Many Danes with an average working career can find themselves close to the threshold.

ATP alone (average 2026): approximately DKK 17,340/year

Example combined other income:

Source	Amount/year
ATP (average)	DKK 17,340
Occupational pension (30 years, middle income)	DKK 60,000–90,000
Total	DKK 77,000–107,000

With an occupational pension of just DKK 82,000 plus ATP, a single retiree already hits the DKK 99,200 threshold. That threshold is not designed to target the wealthy — it catches many who have worked and saved throughout their lives.

Those most at risk are typically:

• Single retirees with a mid-sized occupational pension (FH, Industriens Pension, KP, etc.)
• Retirees with capital income from bonds or bank deposits
• Retirees with stock dividends or capital gains from a standard taxable account

Those well clear of the trap are either those with very little savings (below the threshold) or those with very high savings (above DKK 438,200 — but those receive no supplement at all).

Try it yourself

The chart below shows two curves: actual net income and a hypothetical line without PT reduction (PT: pensionstillæg, the pension supplement). Use the tax rate slider to adjust to your own local rate and see when the curves begin to diverge — and what it actually costs per month.

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What can you do?

The pension supplement trap is difficult to avoid entirely, but some savings vehicles do not make it worse.

The stock savings account (ASK) does not affect the pension supplement. Returns from ASK — neither capital gains nor dividends — count towards the pension supplement calculation. The same applies to aldersopsparing pension accounts. This means returns on these accounts do not push you deeper into the reduction zone.

A standard taxable account can make things worse. Capital gains from shares in a standard taxable account count as stock income and enter the pension supplement basis in full. Dividends count for the portion above DKK 5,000 per person. If you are already in the reduction zone, every extra krone of investment return costs you twice: income tax of 27% plus roughly 19–20 percentage points of net supplement loss.

A rule of thumb:

• Savings in ASK or aldersopsparing: neutral for the pension supplement
• Savings withdrawn as ratepension or life annuity: reduces the supplement
• Capital gains and dividends from a standard taxable account in retirement: reduces the supplement

This does not necessarily mean you should avoid annuity pensions. The tax deduction during the savings phase, the PAL pension return tax of 15.3%, and the overall tax picture depend on your specific circumstances. But the trap is real and widely underestimated. In Ratepension or taxable account? we work through the full account-type comparison — including the scenario where the trap makes ratepension the most expensive choice.

How do I get a clear picture?

Mapping your situation requires two types of information: what you expect to receive in pension payments, and what you hold in assets and investment returns.

For pension payments, the best starting point is Pensionsinfo.dk — it aggregates your data across all pension providers and shows what you can expect to receive. Note that the site is in Danish. From there you can see whether you are close to the DKK 99,200 threshold.

For an overview of your investments, Porteføljestyring is a Danish tool that brings your accounts into a single view — stock savings account, standard taxable account, and other holdings — with correct average cost basis (GAK) calculations and Danish tax applied. It does not yet calculate the pension supplement effect automatically (that requires knowing your actual pension payments), but it gives you the half of the picture that concerns assets and returns.

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Summary

	Counts in the pension supplement calculation?
Ratepension, life annuity, ATP	Yes
Positive net capital income (interest)	Yes
Negative capital income (interest expenses)	No — cannot be used to reduce the basis
Capital gains from standard taxable account	Yes (in full)
Stock dividends — amount above DKK 5,000 allowance	Yes
Stock dividends — below DKK 5,000 in total	No
Returns from stock savings account (ASK)	No
Returns from aldersopsparing pension account	No
Employment income	No

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This article explains the rules — not what you personally should do. Your situation depends on your specific income sources and pension arrangements. Consider speaking with a pension adviser for a calculation tailored to your finances.