Which day the client is charged
For Ongoing and Set months products, you choose which day of the month the payments are taken. A Once product is charged as soon as the client completes their payment setup, so it has no billing day.
The option explained like this:
Billing day | When the client pays | If they start mid-month |
Same day each month | On the date their plan started, e.g. the 7th every month. If a month is shorter, they pay on its last day. | No partial month. Every payment is the full price. |
First of the month | On the 1st, for the month ahead | Their first payment only covers the rest of that month |
Last day of the month | On the last day, for the month that just passed | Nothing at the start. Their first payment comes at the end of the month and only covers the days they had. |
Last working day | On the last weekday of the month, for the month ahead. Useful if your clients get paid around then. | If they start close to the end of the month, the first payment covers the rest of that month plus the next month |
You set the billing day on the product. When you send an offer to a client, you can choose a different day for that client next to Pays. The options are the same, but the names are slightly shorter there ("1st of the month", "same day as the start").
Why the first payment can be different
The monthly price is what the client pays every month. The first payment can be different for three reasons:
They start mid-month. Depending on the billing day, they only pay for the days left in that month.
You added a start fee. It's added to the first payment.
They start right before the billing day. With Last working day, the first payment covers the rest of the month plus the next one.
A partial month is calculated as the monthly price ÷ days in the month × days left.
Examples
All examples use a price of DKK 900 a month.
Billing day | Plan starts | First payment | After that |
Same day each month | 31 Jan 2028 | DKK 900 on 31 Jan | DKK 900 on 29 Feb, 31 Mar, 30 Apr |
First of the month | 6 Oct | DKK 754.84 on 6 Oct (26 of 31 days) | DKK 900 on 1 Nov |
Last day of the month | 15 Oct | Nothing at the start. DKK 493.55 on 31 Oct (17 of 31 days) | DKK 900 on the last day of each month |
Last working day | 30 Oct | DKK 958.07 on 30 Oct (rest of October plus November) | DKK 900 on the last weekday of each month |
With a start fee: the same First of the month example with a DKK 200 start fee gives a first payment of DKK 954.84 on 6 October (DKK 754.84 + DKK 200). From 1 November it's DKK 900.
See exactly what a client will pay
You can check the payments in two places.
1. On the product. Under What a client would actually pay, pick a date in If their plan starts. The preview shows:
the date and amount of the first payment, and what it covers
the dates and amounts of the payments after that
the start fee, if there is one
for Set months, the last payment and how many payments there are in total
Try a few start dates. A plan starting on the 1st can look very different from one starting mid-month.
2. On the offer, before you send it. The product preview uses an example date. When you send an offer to a client, the overview uses their real start date, price and start fee, including any changes you made for that client. Check:
the price the client is offered
First charge, its date and whether it includes the start fee
Terms, as they will see them
The preview is only a preview. Nothing is charged until the client accepts the offer and adds their payment details.
If the amount looks wrong
Is there a start fee?
Does the plan start mid-month?
Which billing day is chosen? With Last day of the month, nothing is charged at the start.
Is the start date the one you meant?
Still does not add up? Write to us in the chat and we will look at it with you.




