How to Set and Calculate an Fakturaforfallsdato

The invoice forfallsdato is the date by which the Kunden is expected to pay an invoice under the agreed terms. It gives both parties a clear point for payment planning and follow-up. A forfallsdato should reflect the agreement; do not assume that every business uses the same default period.

How forfallsdatos are calculated

Start with the event named in the agreement—often the invoice date—then apply the number of days or the stated calendar date. For example, if an invoice is issued on 7. oktober 2026 and the agreed term is Net 30 counted from issue, adding 30 calendar days gives 6 November 2026. If a contract defines a different starting point or day-count convention, follow that definition.

Common ways to state a forfallsdato

• Due on receipt: payment is expected when the Kunden receives the invoice; state a clear date or explanation if timing needs precision.
• Net 7 / Net 14: payment is due seven or fourteen days after the agreed starting point.
• Net 30 / Net 60: payment is due thirty or sixty days after the agreed starting point.
• Custom date or milestone: specify an actual date or the event that starts the payment period.

Calendar days or business days?

Do not assume a day count excludes weekends. State “calendar days” or “business days” where the distinction matters and make sure that wording matches the agreement. The calculator can skip weekends when you select business-day mode, but it does not include public holidays.

Make the forfallsdato easy to understand

Showing both the term and a calendar date can reduce ambiguity—for example, “Net 30; due 6 November 2026.” Check the date when an invoice is reissued, a deposit is paid or the terms are changed. A reminder should refer to the fakturanummer and the stated forfallsdato.

Example

A supplier issues invoice INV-2026-014 on 7. oktober 2026. Their written agreement says Net 30 from invoice date. The invoice displays “Due 6 November 2026.” The Kunden can now distinguish the payment deadline from the invoice date and the service period.

Calculate a date with the Fakturaforfallsdato-kalkulator, then confirm the result against the agreed term.

Problems this guide helps you solve

• Choosing the right document for the current stage of the deal (proposal, bill or payment record).
• Avoiding vague descriptions, missing dates or unclear payment instructions that delay settlement.
• Keeping numbers, statuses and follow-ups aligned with what actually happened—not assumptions.

Decision checklist

1. Confirm the agreement stage: proposal, accepted work, billing or payment received.
2. Verify parties, currency, references (PO/project) and unique document numbers.
3. Make the amount due and the next Kunden action obvious.
4. Save a copy and record how the document was delivered or how payment was matched.

Common mistakes

• Sending a proposal labelled as an invoice before billing is appropriate.
• Reusing document numbers or leaving critical dates blank.
• Marking something paid before funds are confirmed in your records.
• Omitting payment instructions or using a forfallsdato that conflicts with written terms.

Next steps

Draft or adjust the document in the free fakturagenerator, then review related guides linked on this page. Requirements can vary by jurisdiction—confirm what applies to your situation.