Deemed receipt in arbitration: service at the last known address

A written communication in arbitration may be deemed received even when the recipient cannot be located. Section 580 ZPO requires reasonable inquiries, a provable attempt to deliver the communication and an address that was given to the tribunal or the other party and has not been withdrawn by a new address.

The first distinction is between personal delivery and the special rule for a recipient whose whereabouts are unknown. In a personal delivery case, receipt occurs on the day the communication is handed to the recipient or a person authorised to receive it. If that is not possible, delivery at the recipient’s seat, domicile or habitual residence may also be relevant.

The second category cannot be based on an old address alone. The record must show that the recipient knew about the arbitration, which inquiries were made and where the proper delivery attempt took place.

What receipt under Section 580 ZPO means

Section 580 ZPO determines the day on which a written communication is deemed received in arbitration when the parties have not agreed otherwise. It answers a specific procedural question: which date governs the further treatment of the communication?

The rule concerns a written communication and an identifiable recipient. It does not remove the need to check whether the communication belongs to the relevant arbitration or whether the parties agreed a different arrangement. Those points should be identified from the arbitration agreement and procedural record before the delivery issue is assessed.

The article on arbitration clauses in articles and statutes addresses a prior question about the scope of an arbitration clause. This article concerns receipt of a communication in an arbitration that has already been identified.

When personal delivery or delivery at the place of residence is sufficient

Under Section 580 paragraph 1 ZPO, receipt occurs on the day the communication is personally handed to the recipient or a person authorised to receive it. The authority to receive should be traceable from the documents or the circumstances of the handover.

If personal handover was not possible, the communication may be delivered at the recipient’s seat, domicile or habitual residence. The record should therefore identify the actual place of delivery. A statement that the communication was merely sent does not answer that question.

Review the delivery evidence together with the communication itself. The name, date, place and receiving person should be recorded in a way that allows the date of receipt to be established later.

Why unknown whereabouts and reasonable inquiries matter

Section 580 paragraph 2 ZPO applies when the recipient knows about the arbitration and remains of unknown whereabouts despite reasonable inquiries. Both conditions belong together. An attempt at an old address therefore does not, by itself, establish deemed receipt.

The inquiries must relate to the particular recipient and remain traceable in the record. Preserve the contact details used, the dates of the attempts and their outcomes. A general assumption that the recipient cannot be found leaves the required connection unclear.

The date on which the recipient learned of the arbitration should also be preserved. The record should identify the communication, agreement or response that establishes this knowledge. Without that connection, reliance on Section 580 paragraph 2 ZPO remains uncertain.

Which address counts as the last known address

Under Section 580 paragraph 2 ZPO, the attempt must be made at a place that the recipient gave to the other party or the tribunal as an address when the arbitration agreement was concluded or later. The source of the address therefore matters, rather than its mere appearance in an internal contact list.

The address must not have been withdrawn by giving a new address. A later address notice may change the relevant point of reference. The record should contain both the original notice and the check for any subsequent address.

Preserve the arbitration agreement, correspondence about the address and any communications to the tribunal. This distinguishes an address intended for arbitration communications from an address used only in another business relationship.

How to prove the date of receipt and the delivery attempt

The receipt rule is tied to a specific day. A legal review therefore needs a connected record consisting of the communication, delivery evidence, the source of the address and the outcome of the inquiries. Individual screenshots or an isolated return note may show only part of that sequence.

Where deemed receipt under Section 580 paragraph 2 ZPO is asserted, record when the attempt took place and why it was a proper attempt at the relevant address. The evidence should connect the attempt, the location and the arbitration.

Arrange the documents in chronological order. The article on withdrawing an arbitration claim concerns a different procedural issue, but it also shows why the procedural stage and communications with the other side should be documented separately.

Why court communications require a separate assessment

Section 580 paragraph 3 ZPO expressly excludes communications in court proceedings from paragraphs 1 and 2. Delivery in arbitration must therefore be kept separate from delivery by a state court, even when the same party or address is involved.

The record must identify who sent the communication and which proceeding it belongs to. An arbitral tribunal, an arbitral institution and a state court may have different roles in the same matter. The procedural basis for the communication should be recorded accordingly.

Only then can it be assessed whether the special receipt rule for arbitration applies. The article on the arbitration agreement as a procedural contract assists with the contractual framework, but it does not replace a review of the particular communication.

Documents needed for the review

For an initial review, gather the arbitration agreement, the procedural rules, the written communication and all delivery evidence. Add correspondence in which an address was given or changed and documents showing the reasonable inquiries.

Prepare a short chronology covering knowledge of the arbitration, notice of the address, inquiries, delivery attempt and the claimed date of receipt. Mark whether the communication belonged to arbitration or court proceedings.

The final question is whether the documents support the conditions of Section 580 paragraph 1 or paragraph 2 ZPO. A legal review can compare that sequence with the complete procedural record and any agreement between the parties.

Common questions about deemed receipt in arbitration

Is a written communication automatically deemed received when the recipient has moved?

No. Where the recipient is of unknown whereabouts, Section 580 paragraph 2 ZPO requires knowledge of the arbitration, reasonable inquiries and a provable delivery attempt at an address previously given and not withdrawn.

Which address is relevant for the delivery attempt?

The relevant place is one the recipient gave to the other party or the tribunal as an address when the arbitration agreement was concluded or later, without subsequently withdrawing it by giving a new address.

Does Section 580 ZPO also govern delivery by a state court?

Section 580 paragraph 3 ZPO expressly excludes communications in court proceedings. The first step is therefore to identify which proceeding the communication belongs to.

Next step

Contract, arbitration clause, correspondence and deadlines should be collected. It can then be assessed whether negotiation, preservation or arbitration is central.