Automated dunning for an SME in Copenhagen: 2026 cost

The verdict in three sentences

For a 60-employee SME with a 72-day DSO, automated dunning is one of the most profitable digital projects of 2026: a tool at EUR 100-400 per month and an ERP integration of EUR 5,000-15,000 (market estimate) can cut 10 to 20 days of DSO. The main lever is the dunning scenario: customer segmentation, reminders triggered by the due date and consistent use of the statutory DKK 310 compensation fee (about EUR 40) per invoice. In Copenhagen, where many SMEs invoice Swedish, German and Norwegian customers, multilingual templates and dispute handling matter as much as automated emails.

What a 72-day DSO really costs

Under the Danish Interest Act, the default B2B payment term is 30 days, and agreed terms above 60 days are generally considered unfair. A 72-day DSO means part of your customers pay late and your cash is financing their working capital. For an SME with EUR 9 M in revenue, each day of DSO represents about EUR 24,660 tied up.

The 5% financing cost reflects a typical credit line or factoring facility in 2026. Reaching 45 days within a year is unrealistic for most Danish manufacturers, but moving from 72 to 57 days is a common result once reminders become systematic.

Tooling options and their 2026 cost

Most SMEs still send reminders by hand from e-conomic, Business Central or a spreadsheet, whenever the bookkeeper has time. The market now offers several levels of tooling. Prices below are 2026 market estimates for Northern Europe.

A custom integration with the e-conomic REST API makes sense when you need more than the native reminder feature. It syncs invoices and credit notes, pulls payments from bank reconciliation, pauses reminders when a sales rep flags a dispute and adds a card or MobilePay payment link to every email. It also prepares you for e-invoicing: the Danish Bookkeeping Act now requires a registered digital bookkeeping system, and EU ViDA rules will make structured B2B e-invoicing mandatory for intra-EU trade by 2030.

The dunning scenario that saves 15 days

A tool without a scenario only sends emails faster. The gain comes from a sequence aligned on the due date, with gradual escalation and tasks assigned to the right people.

Danish late interest is the Nationalbank reference rate plus 8 percentage points, and creditors may also charge up to three reminder fees of DKK 100. For Swedish and German customers, templates should exist in their language. In practice, this scenario frees about one day per week in the finance team, which moves from repetitive mailings to real disputes.

Mini case study

Mette is CFO of a 60-employee precision engineering SME in Copenhagen: EUR 9 M revenue, 800 invoices per month, 72-day DSO, e-conomic as ERP. She picks a dunning SaaS at EUR 250 per month and a custom integration estimated at EUR 10,000, so EUR 13,000 in year one.

Realistic target: DSO down to 57 days. Cash released: EUR 369,900, which means EUR 18,500 in financing savings per year at 5%. Finance time released: 46 days per year at a loaded cost of EUR 300, so EUR 13,800. Compensation fees of about EUR 40 claimed on 30 invoices per month and collected in 30% of cases: EUR 4,300. Estimated total gain: EUR 36,600 per year, a payback of about 4 months.

FAQ

Can we really charge a fee on every late invoice?

Yes, the Danish Interest Act grants B2B creditors a fixed compensation of DKK 310 (about EUR 40) per late claim, on top of interest at the reference rate plus 8 points. It should be stated in your terms and on your invoices.

How long does the e-conomic integration take?

Allow 4 to 8 weeks for a custom integration with e-conomic, Business Central or a bespoke ERP, including 2 weeks of testing. A standard connector goes live in 1 to 2 weeks.

Does e-invoicing change the project?

Yes. Danish digital bookkeeping requirements and the EU ViDA package push all invoices toward structured formats such as OIOUBL and Peppol. Status messages returned by your access point can trigger or stop reminders automatically.

Do automated reminders hurt customer relationships?

When well configured, no: the D-7 preventive reminder alone settles 20 to 30% of late payments (estimate). The system pauses reminders as soon as a dispute is opened.

Do we need a separate tool for Swedish and German customers?

No, most SaaS tools handle templates in several languages. You should still adapt tone and legal mentions, since German law sets B2B late interest at 9 points above the base rate.

Let's scope your project. Send us your invoice volume, your ERP and your current DSO: we will price the integration and the dunning scenario, with a possible start within 3 weeks. Detailed quote within 48 h. WhatsApp +221 77 596 93 33.