1000 thank you
Today, we opened a bottle of bubbly in our home office as we toasted the 1,000th Unpaid customer! Less than four years after we founded Unpaid, a thousand companies already rely on us to collect their unpaid invoices.


I made a mistake on my invoice. Now what?
Your work is done! Your product has been delivered; your service has been carried out. You click on 'send', and off goes your invoice. That is always satisfying. But—oops—there appears to be an error on your invoice. And whoever notices this, you or your customer, you want to correct it as soon as possible. In this article, you will learn how to elegantly correct errors on invoices.

An unpaid invoice?

Calculate here how much additional turnover you must generate to compensate for it.

The gross margin basically is the difference between the total income of the company (the turnover) and the costs paid to realise that operating income. In many cases (such as in this calculator) this margin is expressed in a percentage. In order to obtain this percentage, you divide the difference by the turnover.


terms and conditions
Do you have General Terms and Conditions? No? It is nevertheless an important document. The General Terms and Conditions determine the rules that will be applied in the event of discussions about delivered performances or invoiced goods. In other words: Good General Terms and Conditions ensure for you to have a stronger position in case of a dispute.