The aktiesparekonto (share savings account) is one of Denmark’s most valuable tax tools for investors. It lets you invest in shares and ETFs while paying a flat 17% tax on unrealised gains — significantly lower than the standard 27%/42% rates on share income. This guide explains how it works, who should use it, and how to get the most out of it.
What Is an Aktiesparekonto?
An aktiesparekonto is a special savings account designed for investing in shares and similar instruments. Its key benefit is a flat 17% tax rate on unrealised gains, calculated on a mark-to-market basis each year on 31 December.
Unlike a regular investment account, where you only pay tax when you sell, the aktiesparekonto taxes you annually on the paper gains of your portfolio — but at a much lower rate.
How the 17% Tax Rate Works
In a standard Danish investment account, share income is taxed at:
| Amount | Tax Rate |
|---|---|
| First DKK 79,400 (2026) | 27% |
| Above DKK 79,400 | 42% |
On an aktiesparekonto, all gains are taxed at a flat 17%, regardless of how much you earn from shares in total. There is no lower or upper tier — it is a flat rate.
Mark-to-Market taxation
Each year on 31 December, the value of your aktiesparekonto is compared to its value on 1 January (or the date you opened the account if that was during the year). The difference — your unrealised gain — is taxed at 17%.
This means you pay tax even if you do not sell anything. However, the lower rate more than compensates for this in most scenarios.
Worked Example
Suppose you open an aktiesparekonto on 1 January 2026 with DKK 136,200. By 31 December 2026, your portfolio has grown to DKK 149,820.
- Unrealised gain: DKK 149,820 − DKK 136,200 = DKK 13,620
- Tax at 17%: DKK 13,620 × 0.17 = DKK 2,315
If you held the same investments in a regular account and sold at the same profit:
- Tax at 27% (assuming within the lower threshold): DKK 13,620 × 0.27 = DKK 3,677
- Tax at 42% (if above the threshold): DKK 13,620 × 0.42 = DKK 5,720
The aktiesparekonto saves you between DKK 1,362 and DKK 3,405 in this scenario — and the savings grow larger as your gains increase.
Contribution Limit
The annual contribution limit for an aktiesparekonto is DKK 136,200 (2026). This limit applies to net contributions — if you withdraw DKK 50,000 during the year, you can re-contribute up to DKK 50,000 (but not more than the unused portion of the annual limit).
Important: You can invest more than DKK 136,200 total if your investments grow. The limit applies to the amount you put in, not the account balance. If your DKK 136,200 grows to DKK 200,000, you still only pay 17% on gains within the account.
What Can You Hold?
The aktiesparekonto is restricted to certain types of investments:
Allowed:
- Danish and foreign shares admitted to trading on a recognised stock exchange
- ETFs (exchange-traded funds) that are listed on a stock exchange
- Investment fund shares that are admitted to trading
Not allowed:
- Bonds
- Non-traded shares (unlisted shares)
- Cryptocurrency
- Structured products
- Other derivatives
Most broad-market index ETFs and individual blue-chip stocks qualify. If a security is listed on a recognised exchange, it generally qualifies for the aktiesparekonto.
Where to Open an Aktiesparekonto
Most major Danish banks and brokers offer the aktiesparekonto:
| Provider | Notes |
|---|---|
| Nordnet | Popular choice. Clean platform, good selection of ETFs, easy to manage online. |
| Saxo Bank | Wide market access, competitive fees for larger portfolios. |
| Danske Bank | Integrates with existing Danske Bank accounts. Higher fees than dedicated brokers. |
| Jyske Bank | Another major Danish bank option with aktiesparekonto support. |
| Nordea | Available if you already bank with Nordea. |
| Lunar | Digital bank with basic aktiesparekonto functionality. |
Tip: Compare custody fees and trading commissions before choosing. The cheapest option depends on your trading frequency and portfolio size.
Strategy: Use It First
Because the 17% rate is always lower than the standard share tax rates, the optimal strategy for most investors is:
- Max out the aktiesparekonto first (up to DKK 136,200).
- Then invest additional funds in a regular investment account or pension.
This is especially valuable for high-growth investments. The higher your expected returns, the more you save on tax by holding them inside the aktiesparekonto.
Which Investments to Put Inside
- Growth stocks — High-growth companies tend to produce larger capital gains, so the 17% rate saves you more.
- International ETFs — Broad-market or thematic ETFs with strong long-term growth potential.
- Avoid putting low-return, low-volatility investments inside the aktiesparekonto — the tax saving is smaller, and you could use that contribution room for higher-growth assets instead.
Losses Within the Account
If your aktiesparekonto portfolio loses value during the year, the loss can offset gains within the account. This means:
- If your portfolio loses DKK 5,000 in a year, you pay no tax.
- If you have a gain in one year and a loss in a later year, the loss reduces the taxable amount in that later year.
You cannot deduct aktiesparekonto losses against share income in your regular account, or vice versa.
Withdrawals and Re-Contributions
You can withdraw money from your aktiesparekonto at any time. However:
- Withdrawing reduces your available contribution room. If you withdraw DKK 30,000, you can re-contribute DKK 30,000 (within the annual limit).
- You can withdraw and re-contribute within the same calendar year, as long as you stay within the annual contribution limit.
- Withdrawals are not taxed separately. You already paid 17% on gains each year, so there is no additional tax when you withdraw.
This flexibility makes the aktiesparekonto more liquid than pension accounts, where withdrawals are heavily restricted until retirement age.
Interaction With Other Accounts
The aktiesparekonto does not affect your other tax-advantaged accounts:
- Pension contributions: Contributing to an aktiesparekonto has no impact on your pension contribution limits or tax deductions for pension contributions.
- Regular investment account: You can use both accounts simultaneously. Most investors should max out the aktiesparekonto first, then use a regular account for additional investments.
- ISK (Individuellt Sparkonto): Not relevant in Denmark — the aktiesparekonto is the Danish equivalent.
- Stock savings plans: Some brokers (like Nordnet) offer automated monthly savings plans into the aktiesparekonto, making it easy to contribute regularly.
Tips for Maximising Your Aktiesparekonto
- Contribute early in the year. The sooner your money is invested, the longer it compounds tax-free at 17%. Contributing on 1 January is ideal.
- Put high-growth investments inside. The 17% rate saves more when gains are larger. Prioritise growth stocks and equity ETFs.
- Use it for international ETFs. Many丹麦 investors use the aktiesparekonto for global or US-focused ETFs — these tend to have strong long-term growth.
- Reinvest the tax saving. Each year, you pay 17% on gains — reinvest the remaining 83% so it continues compounding.
- Don’t leave it empty. An unused aktiesparekonto is wasted contribution room. Even if you can only contribute a portion of the limit, invest it.
- Check your broker’s fees. Custody fees and commissions vary. For a DKK 136,200 portfolio, even a 0.5% annual fee difference costs DKK 681 per year.
Frequently Asked Questions
Can I have more than one aktiesparekonto?
No. You can only have one aktiesparekonto per person, regardless of how many brokers you use. If you open one at Nordnet, you cannot open another at Saxo Bank.
Is the 17% rate guaranteed?
The rate is set by law and has been stable since the aktiesparekonto was introduced in 2012. However, the government could change it in future budgets. The current rate applies to gains realised or accrued up to 31 December each year.
Can I transfer shares into an aktiesparekonto?
Generally, no. The aktiesparekonto is funded with cash contributions. You cannot transfer existing shares from a regular account into the aktiesparekonto without selling them first (which would trigger a taxable event in the regular account).
Does the aktiesparekonto affect my tax return?
Yes. The bank or broker reports your aktiesparekonto gains to SKAT annually. The 17% tax is added to your annual tax assessment. You do not need to declare it yourself, but you should verify the amount on your tax return.
What happens if I exceed the contribution limit?
If you contribute more than DKK 136,200 in a year, the excess amount is subject to a 16% annual fee on the over-contribution until it is corrected. Avoid exceeding the limit.
Summary
The aktiesparekonto is a powerful tool for Denmark-based investors. The flat 17% tax on unrealised gains is significantly lower than the standard 27%/42% rates on share income, making it the most tax-efficient way to invest in shares and ETFs.
Key takeaways:
- Max out the DKK 136,200 annual contribution limit as early in the year as possible.
- Fill it with high-growth investments to maximise the tax saving.
- Use it alongside — not instead of — your regular investment account and pension.
- The 17% rate is applied annually on unrealised gains, but the lower rate more than compensates for this.
Reference: SKAT.dk — Aktiesparekonto rules and annual tax guidelines for share savings accounts.