What is it and when to use it

A demand letter for performance is a formal request sent to the other party when they fail to fulfill their contractual obligation.
It serves as notice of breach and may trigger legal consequences.

Common use cases:

• unpaid invoice

• non-delivery of goods or services

• delays in project completion

• missed contractual obligations

Legal framework

Under Czech Civil Code (Sections 1968+):

• Delay (default) occurs when an obligation is not fulfilled on time

• A demand is not required by law, but strongly recommended

• Delay may lead to default interest,

• or withdrawal from the contract and compensation

Key elements

• Contract reference

• Description of the failure

• Clear demand for performance

• Reasonable deadline

• Warning about consequences

• Signature and proof of delivery

Common mistakes

• Vague or aggressive language

• Not specifying what must be done

• Not delivered properly

• No deadline

• No follow-up action

Recommendations

• Keep it polite but firm

• Use registered mail or data box

• Consider attaching the contract

• Use it as a step before legal action

Practice tip

This letter is often enough to get results without going to court – especially if it includes a firm legal tone and clear deadline.

Demand letter template – symbolic fee

I offer a Czech-English demand letter template for unpaid debts, undelivered goods or delayed services.

Contact me via e-mail or contact form – prevent escalation.

FINAL THOUGHTS – WHAT NOW?

A demand letter for performance isn’t just a formality – it’s a legal shield, if drafted properly. And a trap, if not.

Do you want to be sure your contract will hold up even in a crisis? Get in touch and let’s schedule a meeting. I am a specialist on contract law – more information here.