Open service fee: performance, evidence and invoice
Open service fee: how creditors should structure order, performance, due date and objections before the next step.
8 July 2026, Mag. Bernhard Brandauer, Rechtsanwalt
Unpaid fees for services often arise not from one invoice only, but from unclear scope, missing acceptance or later criticism of the result.
For creditors, the structure matters: what was ordered, what was performed, how was it billed and how did the customer react?
This article gives a first structure for legal review. It is not legal advice and not an automatic recommendation to sue.
What is the document situation for the open fee?
The answers do not replace advice. They help prepare the request.
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Which point matters most right now?
Choose the answer closest to your situation.
Overview of all answers.
Structure documents first
Secure contract, invoice, payment term, previous communication and open balance. Without that basis, every further step remains uncertain.
Review objections separately
If the debtor disputes, pays only partly or raises counterclaims, evidence and cost risk should be assessed first.
Clarify the route quickly
Deadline pressure, cross border elements or existing titles need separate route review. State the relevant date and any urgency clearly in your request.
Clarify order and scope
For services, the first question is what exactly was agreed. Offer, order, scope description and ongoing coordination form the core.
Where little was written down, a factual timeline becomes more important. Emails, approvals and interim results can make performance traceable.
Review invoice and due date
The invoice must match the agreed scope. Flat fee, time spent, partial invoice and variation should not be mixed without explanation.
Due date depends on agreement, invoice, performance and previous communication. A mere invoice does not automatically solve every dispute.
Classify customer objections
The customer may dispute quality, scope, time spent or benefit. These points are not only annoying; they may change evidence risk and settlement need.
Creditors should secure criticism completely and not present only favourable messages.
Assess proportionality before escalation
For open service fees, a factual demand letter can be more sensible than immediate court action. Amount, evidence, limitation and solvency matter.
The firm first reviews whether a further step is proportionate to the likely result.
Common mistake: creditors draft the next step before documents, due date and objections are clear. That increases evidence risk and cost risk.
Frequent questions on claim review
How should I communicate urgency?
No. State the relevant date and any urgency clearly in your request. If a deadline is urgent, please also call the firm.
Is an immediate lawsuit required?
No. Claim, evidence, objections, costs and collectability are reviewed first. Only then can letter, settlement or lawsuit be assessed.
Which documents help first?
Useful documents are contract, order, invoice, due date, reminders, replies, partial payments and a short balance overview.
Related pages on forderung-eintreiben.at
Service fee, Performance, Due date, Evidence, Austria