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Statutory interest calculator for Denmark – procesrente and morarente under the Danish Interest Act

Calculate Danish statutory late-payment interest (procesrente/morarente) under the Interest Act (renteloven): Danmarks Nationalbank's reference rate + 8%, split by half-year, with workings for each claim.

Danish rules

This calculator applies Danish law and Danish collective agreements. It is for employment in Denmark and does not reflect the rules of other countries.

Statutory Interest Calculator
Calculates Danish statutory interest (procesrente) based on Danmarks Nationalbank's lending rate plus the supplement under the Interest Act (renteloven)

Claims

Information

• Interest is calculated from the limitation date (if given) or the claim date

• Supplement: 8%, but 7% for claims that fell due before 1 March 2013

• Calculations are supported from 1 August 2002

• The rate is Danmarks Nationalbank's lending rate + the supplement under the Danish Interest Act (renteloven)

• Interest rates are updated automatically from Danmarks Nationalbank

• Rates are set twice a year: 1 January and 1 July. Periods after the next fixing are calculated at the latest known rate and marked with *


How to calculate Danish statutory interest

Statutory late-payment interest in Denmark (procesrente) is calculated as principal × (reference rate + 8%) × interest days ÷ 360. The reference rate (referencesats) is Danmarks Nationalbank's official lending rate as set on 1 January and 1 July. The calculation is therefore split into half-years: each half-year has its own rate, and the interest is added up at the end.

  1. Enter the amount of the claim and the date from which interest is to run — typically the due date of the wages or the invoice.
  2. Choose the date to which interest is to be calculated — e.g. the payment date or today.
  3. Add more claims if there are several, e.g. several pay periods. Each claim bears interest from its own date.
  4. Press Calculate. You get the interest per half-year, total statutory interest, principal and grand total — and can save the statement as a PDF.

If you need the calculation in your own spreadsheets, the Excel macro pack (Excel Makropakken) adds the function =procesrente() to Excel.

The rules
  • The interest rate: The reference rate plus 8% a year (section 5(1) of the Danish Interest Act (rentelovens § 5, stk. 1)). For claims that fell due before 1 March 2013 the supplement is 7% throughout — also for interest after that date (section 4(2) of Act no. 1244 of 18 December 2012). The calculator uses the claim date as the due date.
  • Rate changes: The reference rate applies for six months at a time from 1 January and 1 July. The calculator switches rates on those dates automatically. If you calculate beyond the next 1 January or 1 July, the rate has not been set yet; the calculator then uses the latest known rate and marks the period.
  • 360-day year: The calculation follows the 30/360 banking convention, where a month counts as 30 days and a year as 360 days.
  • Simple interest: The calculator charges interest on the principal, not on interest that has already accrued.
  • Limit: The calculator supports claims from 1 August 2002 onwards.
The fields explained
  • Calculate interest to: End date of the interest calculation — typically the payment date or today.
  • Amount (DKK): The principal of the claim in Danish kroner. You can add several claims — interest is calculated for each claim separately and added up.
  • Claim date: The date from which interest runs for this particular claim — normally the due date; see the section on when interest starts to run. The “Last banking day +1” button moves the date to the day after the last banking day of the month (e.g. June 2024: last banking day Friday 28/6 → 29/6). Danish bank holidays — e.g. 31/12, Easter and the Friday after Ascension Day — do not count as banking days.
  • Limitation date (optional): A common date before which no interest is calculated. Use it if interest from before a certain date cannot be claimed — e.g. because it is time-barred (forældet). If the claim date is later, the claim date is used.

Danish statutory interest per half-year: reference rate + 8%

The table shows the rates the calculator uses. Statutory interest (procesrente) is the reference rate plus the supplement of 8 percentage points — even when the reference rate was negative, as in 2021 and 2022.

Half-yearReference rateStatutory / default interest
2nd half of 20262.00%10.00%
1st half of 20261.75%9.75%
2nd half of 20251.75%9.75%
1st half of 20252.75%10.75%
2nd half of 20243.50%11.50%
1st half of 20243.75%11.75%
2nd half of 20233.25%11.25%
1st half of 20231.90%9.90%
2nd half of 2022-0.45%7.55%
1st half of 2022-0.45%7.55%
2nd half of 2021-0.35%7.65%
1st half of 20210.05%8.05%
2nd half of 20200.05%8.05%
1st half of 20200.05%8.05%
2nd half of 20190.05%8.05%
1st half of 20190.05%8.05%

The reference rate is Danmarks Nationalbank's official lending rate as at 1 January and 1 July. The rates are updated in the calculator when Danmarks Nationalbank sets a new rate; a half-year without a change has the same rate as the half-year before.

Default interest under the Danish Interest Act: when does interest start to run?

The rate is the same, but the start date depends on the claim. This is where most interest statements go wrong — the calculator counts from the date you enter, so choose it according to section 3 of the Interest Act (rentelovens § 3):

  • Fixed due date (§ 3, stk. 1): Interest from the due date if it has been fixed in advance — which is normally the case with wages.
  • No due date (§ 3, stk. 2): Interest once 30 days have passed after the creditor sent or made a request for payment.
  • Claims that cannot be assessed (§ 3, stk. 3): At the earliest 30 days after the debtor was able to obtain the information needed to assess whether the claim is justified and how large it is.
  • Legal proceedings (§ 3, stk. 4): At the latest from the day the creditor began legal proceedings for payment of the debt. Claims outside the area of property and contract law (formuerettens område) only bear interest from then (§ 8).

The court can move the start date where special circumstances justify it (§ 3, stk. 5), and the Act gives way to what has been agreed (§ 1, stk. 3). In Danish labour disputes, a request for a joint meeting (fællesmødebegæring) only counts as a request for payment if it contains a specific calculation of the claim.

Examples of calculating Danish statutory interest

One interest year with two rates

Claim: DKK 50,000, due date 1 January 2024, calculate to 1 January 2025.

  • Jan–Jun 2024: 3.75% + 8% = 11.75% for 180 days
  • → 50,000 × 11.75% × 180/360 = DKK 2,937.50
  • Jul–Dec 2024: 3.50% + 8% = 11.50% for 180 days
  • → 50,000 × 11.50% × 180/360 = DKK 2,875.00
Total statutory interest:DKK 5,812.50

Default interest on wages from 2025

Wages of DKK 30,000 fell due on 1 October 2025 and are paid on 1 October 2026.

  • 1/10 2025–1/7 2026: 1.75% + 8% = 9.75% for 270 days
  • → 30,000 × 9.75% × 270/360 = DKK 2,193.75
  • 1/7–1/10 2026: 2.00% + 8% = 10.00% for 90 days
  • → 30,000 × 10.00% × 90/360 = DKK 750.00
Total default interest:DKK 2,943.75

Interest from 30 days after a demand

Claim: DKK 25,000 with no fixed due date. The demand for payment was sent on 2 July 2023, so interest runs from 1 August 2023. Calculate to 1 January 2024.

  • Aug–Dec 2023: 3.25% + 8% = 11.25% for 150 days
  • → 25,000 × 11.25% × 150/360 = DKK 1,171.88
Total incl. principal:DKK 26,171.88
If you employ staff in Denmark, note

If wages have a fixed due date, interest runs from that day — no reminder is needed first. The longer a back payment drags on, the more interest has to be paid on top.

Objections to the interest must be tied to the conditions of the Interest Act (renteloven) itself — e.g. that the claim had not been calculated, so you could not assess it (§ 3, stk. 3).

The Interest Act applies to monetary claims in the area of property and contract law and gives way to what has been agreed. So check the collective agreement (overenskomst) and the employment contract for their own interest rules.

If you work in Denmark, note

If you are owed wages, holiday pay (feriepenge) or compensation, present a specific calculation of the amount as early as possible. It is the calculation that turns your approach into a request for payment, which starts the interest running.

Interest follows the main claim: if the claim becomes time-barred (forældet), so does the interest. Interest that falls due on a running basis can also become time-barred on its own after 3 years. Check the limitation period with the date calculator and your trade union (fagforening).

The calculator is for guidance only. Always have the result checked by your trade union or a lawyer before you bring a claim before industrial arbitration (faglig voldgift), the Danish Labour Court (Arbejdsretten) or the courts.

Legal basis (Danish law)

Questions and answers

What is Danish statutory interest (procesrente)?

Statutory interest (procesrente) is the interest a debtor in Denmark has to pay on a monetary claim that has not been paid on time. It is the reference rate plus 8 percentage points a year (section 5(1) of the Interest Act (rentelovens § 5, stk. 1)) — in the 2nd half of 2026, 10.00% in total.

Is procesrente the same as default interest (morarente)?

The rate is the same. Default interest (morarente) is the usual term for interest on late payment, which runs from the due date or 30 days after a demand. Procesrente is often used for the same thing in practice, but especially for interest on a claim that has been brought before the courts — under section 3(4) of the Interest Act (rentelovens § 3, stk. 4) it runs at the latest from the start of legal proceedings. The calculation is identical; it is the start date that sets them apart.

What is the Danish statutory interest rate right now?

10.00% in the 2nd half of 2026: the reference rate of 2.00% plus 8 percentage points. In the 1st half of 2026 it was 9.75%. See the table above for earlier half-years.

Why is a 360-day year used?

The calculator follows the 30/360 banking convention, where every month counts as 30 days. This gives the same interest for each half-year regardless of the length of the months, and half a year comes to exactly 180 interest days.

Can statutory interest become time-barred?

Yes. If the main claim becomes time-barred (forældet), the interest lapses too (section 23(2) of the Limitation Act (forældelseslovens § 23, stk. 2)). If no interest is to be calculated before a certain date, enter it in the “Limitation date” field.

How do I calculate the interest in Excel?

Use the formula =amount*(reference_rate+8%)*days/360 for each half-year and add up the results. The Excel macro pack (Excel Makropakken) gives you the function =procesrente(), which uses 30/360 and fetches the rates from Danmarks Nationalbank.

Content last reviewed October 2026.