võlakuus
Võlakuus is an Estonian term that translates to "invoice month" or "month of debt." It specifically refers to the month in which an invoice is issued or becomes due. While the literal translation suggests a focus on debt, in practical usage, võlakuus simply indicates the billing period for which a particular invoice is relevant.
When referring to a specific võlakuus, it is common to state the month and year. For example,