Sweden offers a robust arbitration framework, maximising party autonomy while ensuring adequate safeguards. This SCC Guide examines the grounds, procedures, and practical considerations for challenging awards seated in Sweden.

Arbitration and the SCC

Arbitration: a trusted global dispute resolution mechanism

Arbitration is a widely recognised method for resolving disputes outside of court. As a flexible, party-driven process, it supports international trade and commerce. Since 1958, the New York Convention has facilitated the recognition and enforcement of arbitral awards across more than 170 countries.

Choosing arbitration means waiving the right to litigate in court. Parties can opt for ad hoc arbitration, governed primarily by national legislation, or institutional arbitration administered by an established institution such as the SCC Arbitration Institute (SCC). Established in 1917, the SCC provides a neutral, independent, and impartial venue for commercial dispute resolution worldwide.

Major arbitral institutions administer thousands of international arbitrations annually. The SCC alone administered 213 cases in 2025. Unlike court proceedings, which are generally public, arbitration is private and confidential.

Institutional arbitration: safeguarding enforceability

The SCC’s procedural rules are updated regularly to reflect best practice and user expectations. They contain systematic safeguards addressing New York Convention enforcement grounds, including professional case management, established procedures for constituting impartial tribunals, and rigorous award review.

Ad hoc arbitration requires parties to manage all procedural aspects themselves. This may create delays, increase costs, and introduce enforceability risks. Procedural irregularities, inadequate documentation, or disputed appointments can provide grounds for a court to refuse recognition or enforcement.

The SCC Rules: final and binding awards

The SCC Arbitration Rules are the most frequently used framework for resolving disputes at the SCC. Article 46 provides that awards are final and binding on the parties, ensuring certainty and reinforcing enforceability under the New York Convention.

The SCC Rules also obligate the SCC to make reasonable efforts to ensure that awards are enforceable. This is reflected in several institutional practices:

• Procedural oversight: The Secretariat ensures proceedings comply with due process requirements, including proper notice, equal treatment, and comprehensive documentation.
• Qualified arbitrator appointments: The SCC applies rigorous selection criteria to ensure tribunals possess the necessary expertise, independence, and impartiality.
• International standards alignment: The SCC Rules align with the UNCITRAL Model Law and international best practices, ensuring awards satisfy enforcement courts’ expectations worldwide.

These safeguards support the recognition and enforcement of awards across jurisdictions.

Challenging an award

General principles

The choice to arbitrate is a waiver of the right to seek redress in court. In return, parties retain the right to challenge an arbitral award. This balances finality with the need to address serious procedural, public policy, or formality irregularities. In line with the New York Convention, the grounds for challenge are intentionally narrow, preserving the efficiency and finality that make arbitration attractive.

A party can only seek to set aside an award in the courts of the seat of arbitration. The seat determines which national arbitration law governs the proceedings and which courts have supervisory jurisdiction. Grounds for setting aside typically include serious procedural defects, jurisdictional issues, or violations of public policy. Most modern arbitration laws do not permit challenges on the merits.

Challenging awards in Sweden

Under the Swedish Arbitration Act (1999:116) (SAA) (Sw. lag om skiljeförfarande), Swedish courts may hear a challenge only when the seat of arbitration is in Sweden. This limitation is strictly applied. If the seat is outside Sweden, any challenge must be brought in the courts of that jurisdiction.

The SAA governs all arbitrations seated in Sweden, applying uniformly to both domestic and international proceedings. Although it does not mirror the UNCITRAL Model Law in every formal aspect, it aligns closely in substance.

The SAA distinguishes between two main forms of challenge: invalidity under Section 33 and setting aside under Section 34.

Challenging arbitration awards in Sweden: courts and statistics

According to the Westerberg Arbitration Tracker 2024, 367 challenge cases were initiated over the last two decades (2004–2023) – an average of 19 per year. Swedish courts set aside only 21 awards (approximately 6% of resolved cases), primarily for excess of mandate (10 cases).

Of the 21 set-aside awards, only 14 involved SCC proceedings, accounting for barely 4% of all challenged awards. During the same period, the SCC registered 3,487 cases, the vast majority of which were seated in Sweden. This means that less than 0.5% of awards rendered in SCC arbitrations have been set aside.

Jurisdiction and court distribution

Challenges are brought before the court of appeal at the seat of arbitration. If the seat is undetermined, challenges go to the Svea Court of Appeal in Stockholm (Sw. Svea hovrätt).

Sweden has six courts of appeal: Court of Appeal for Lower Norrland (Sw. Hovrätten for Nedre Norrland), Court of Appeal for Upper Norrland (Sw. Hovrätten för Övre Norrland), Svea Court of Appeal (Sw. Svea hovrätt), Court of Appeal for Western Sweden (Sw. Hovrätten för Västra Sverige), Court of Appeal for Skåne and Blekinge (Sw. Hovrätten över Skåne och Blekinge), and Göta Court of Appeal (Sw. Göta hovrätt).

Stockholm’s status as a preferred seat of arbitration means the Svea Court of Appeal handles the vast majority of challenges – approximately 90% of all challenge cases in Sweden. The Svea Court of Appeal receives around 15-20 new challenge cases per year. Between 2004–2023, it saw 325 of 367 cases. This concentration has increased slightly over the past decade, making it the de facto specialist court for arbitral award challenges in Sweden.

Important procedural notes

• Confidentiality consideration: The principle of public access to official documents (Sw. offentlighetsprincipen) applies in Sweden, making court filings publicly accessible. Requests for disclosure of documents are common in challenge proceedings and are typically subject to a secrecy assessment under Chapter 36, Section 2 of the Public Access to Information and Secrecy Act (Sw. offentlighets- och sekretesslagen). Parties may wish to seek legal advice on whether information can be redacted, or if redacted versions of documents, such as the arbitral award itself, can be submitted when filing a challenge.
• Non-challenge certification: The courts of appeal can certify that an award has not been challenged, which may be useful for enforcement purposes. It should be noted that the SCC cannot issue this type of certification. Parties seeking confirmation that an award has not been challenged must therefore apply directly to the relevant court of appeal.
• Service abroad: Where a party to the challenge proceedings is domiciled outside Sweden, service of process is subject to specific rules that vary depending on the country in which service is to be effected. Parties should account for the additional time this may require.

Grounds for challenge under the SAA

Invalidity (Section 33)

Section 33 of the SAA safeguards public and third-party interests. Invalidity may be raised at any time, including as a defence to enforcement.

An award is invalid:

• if it includes determination of an issue which, in accordance with Swedish law, may not be decided by arbitrators;
• if the award, or the manner in which the award arose, is clearly incompatible with the basic principles of the Swedish legal system; or
• if the award does not fulfil the requirements with regard to the written form and signature in accordance with Section 31, first paragraph.

Setting aside (Section 34)

Section 34 sets forth the mechanism for setting aside an arbitral award rendered in Sweden. An action must be brought within two months of receiving the award.

The grounds for setting aside an award under Section 34 are limited and include:

• if it is not covered by a valid arbitration agreement between the parties;
• if the arbitrators have made the award after the expiration of the time limit set by the parties;
• if the arbitrators have exceeded their mandate, in a manner that probably influenced the outcome;
• if the arbitration, according to Section 47, should not have taken place in Sweden;
• if an arbitrator was appointed in a manner that violates the parties’ agreement or this Act;
• if an arbitrator was unauthorised to adjudicate the dispute due to any circumstance set forth in Sections 7 or 8; or
• if, without fault of the party, there otherwise occurred an irregularity in the course of the proceedings which probably influenced the outcome of the case.

Under Swedish law, a party cannot generally rely on a circumstance it may be deemed to have waived by participating in the proceedings without objection.

Partial invalidity and partial setting aside

Under both Section 33 and Section 34 of the SAA, an award may be declared invalid or set aside in part. The guiding principle is that an award should not be invalidated or set aside to a greater extent than necessary.

Where a ground for challenge affects only part of an award, the court must assess whether the affected part can be severed from the remainder. The test is whether the remaining part would, on account of res judicata, preclude a new hearing of the invalidated or set aside part. If so, the award must be invalidated or set aside in its entirety.

Duration of court proceedings

Challenge proceedings before the courts of appeal are conducted in accordance with Chapters 42-44 of the Swedish Code of Judicial Procedure (Sw. rättegångsbalken) and typically take approximately one year. Duration varies depending on case complexity, volume of evidence, and the respective court’s caseload.

Enforcement during pending challenges

Filing a challenge does not automatically suspend enforceability. The challenging party may apply for a stay of enforcement, but Swedish courts grant such stays sparingly. The applicant must demonstrate that the challenge is “likely to succeed”, a threshold rarely met unless the merits are apparent on preliminary assessment.

This reflects Swedish courts’ strong preference for treating awards as final and enforceable unless actually set aside.

Remission to the Arbitral Tribunal

In certain circumstances, courts may suspend challenge proceedings to allow the arbitral tribunal to reconvene and take corrective action. In practice, this power is rarely exercised. A related form of remission occurs when a court reverses a tribunal’s negative jurisdictional determination, sending the matter back for substantive resolution.

Contractual waiver of challenge rights

The SAA permits non-Swedish commercial parties to waive their Section 34 challenge rights in advance. Such waivers must be in writing and expressed with sufficient clarity.

This enables international parties to enhance finality by eliminating the possibility of challenge. However, the invalidity grounds under Section 33 cannot be waived, as they concern public policy and third-party interests.

Appeal of awards on jurisdiction

Swedish law generally does not permit appeals of arbitral awards. However, important exceptions apply to jurisdictional determinations. Where a tribunal has ruled in an affirmative decision that it has jurisdiction to hear a dispute, a party may challenge that determination before the competent court of appeal pursuant to Section 2 of the SAA. Conversely, awards that terminate proceedings based on a finding of lack of jurisdiction may also be appealed.

Additionally, under Section 36 of the SAA, a party may seek recourse where the arbitrators have concluded the proceedings without ruling on issues properly submitted to them.

These provisions ensure that parties have judicial recourse both when a tribunal declines to hear their dispute and when a party contests the tribunal’s assumption of jurisdiction.

Arbitrators’ authority to apply law

In Sweden, the principle of jura novit curia – that courts know the law – has strong standing. Parties need not specifically invoke legal provisions for courts to apply them. This principle generally extends to arbitration, at least in domestic proceedings unless the parties agree otherwise.

Arbitrators may apply legal provisions the parties did not specifically invoke, but they cannot apply a different governing law than the parties agreed. Applying the wrong governing law may expose the award to challenge under Section 34 for excess of mandate.

In other words, arbitrators have flexibility in identifying applicable rules within the agreed governing law but cannot substitute an entirely different legal system. Best practice is for the tribunal to avoid surprising the parties by applying law not pleaded in the arbitration.

Additional procedural mechanisms

The SAA provides additional procedural mechanisms. Section 35 allows courts to suspend challenge proceedings to give arbitrators an opportunity to correct defects. Section 36 addresses situations where arbitrators failed to rule on issues submitted to them.

These provisions balance finality with the possibility of addressing fixable problems.

Conclusion

Sweden’s arbitration framework demonstrates that limited judicial intervention and procedural safeguards are hallmarks of a successful arbitration jurisdiction. The SAA strikes a careful balance: meaningful recourse against serious irregularities, whilst preserving the finality and efficiency that make arbitration attractive. Parties benefit from a unified legal framework, experienced courts of appeal, and sophisticated local counsel. The SCC’s institutional safeguards – professional case management, rigorous arbitrator selection, and systematic award scrutiny – ensure that awards are not only final and binding but also meet the standards required for enforcement across jurisdictions. The result is a system where awards are respected as final, yet subject to review when fundamental fairness requires it.