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Hetzner changes to billing system for October 2024
5 euro minimum value for invoices
When we introduce our new invoices, you will only receive an invoice for the month if you have exceeded the minimum value of 5 euros. If you use less than 5 euros, we will add that amount to the next invoice. If, the next month, the total is still not over 5 euros, the amount will be added to the next month's invoice. As soon as the value goes over 5 euros, the new billing system will send you an invoice. If you remain below 5 euros for 3 months, you will receive an invoice for the amount between 0 and 5 euros. So you will get an invoice after the 3rd month at the latest. This rule only applies after we have sent you your very first invoice.
https://docs.hetzner.com/general/others/changes-to-billing-system-for-october-2024

Comments
Why do I feel guilty.
in September I practically stopped using their services only keeping a snapshot and a single ipv4 reserved which would result in pennies worth of invoice.
It probably has to do with the new object storage offerings, right?
Since that could cause lots of tiny invoices otherwise.
Yeah probably.
Would have been nice for them to send an email out about the changes.
There used to be cases of Hetzner systems automatically threatening debt collectors to people who hadn't paid their €0.01 invoice. I guess that won't happen anymore.
Actually rereading I guess it will? That 3 month minimum is bizarre.
@Erisa this is normal since you read their agreement.