Cross-border enforcement

Enforcing a Spain judgment in United States

Spain and the United States have no treaty for recognising civil judgments. The Hague 2019 Convention was signed by Washington in 2022 but never ratified, so it does not apply to this pair. A Spanish judgment is enforced through the law of the US state where the debtor holds assets. If the dispute went to arbitration instead, the New York Convention offers a more dependable route.

Applicable regime

The Hague Judgments Convention entered into force on 1 September 2023, but the United States only signed it on 2 March 2022 and has never ratified it, so the treaty does not bind this pair. Spain is covered through the EU's accession, which took effect on the same date, but that coverage means nothing without US ratification on the other side. Recognition of a Spanish judgment in the United States does not run through any judgment treaty at all. It runs through the domestic recognition law of whichever US state holds the debtor's assets, applied under comity rather than a uniform federal statute. Where the underlying claim was arbitrated in Spain, a separate and better-established regime applies instead: the 1958 New York Convention, to which the US is a party, covers recognition of foreign arbitral awards directly and does not depend on any judgment treaty.

What the destination court will check

US courts applying comity to a foreign judgment typically look for all of the following together, not any one on its own.

• The Spanish court had jurisdiction over the defendant under standards the US court recognises as fair.
• The judgment is final and not still open to ordinary appeal in Spain.
• The defendant received notice and a genuine opportunity to defend.
• The judgment does not order taxes, penalties, or other matters US courts treat as non-recognisable.
• Recognition would not conflict with a prior judgment on the same claim or with US public policy.

These conditions are cumulative. Failing on any single point is enough for a US court to refuse recognition, regardless of how the others are met. Refusal on these grounds falls within the pattern this firm tracks as non-enforcement.

What will not go through

Judgments for taxes, fines, or other public-law penalties do not travel through the civil recognition route at all, in the US or anywhere else. A default judgment entered without proper notice to the defendant is a common trap, since US courts scrutinise notice closely and do not simply defer to the Spanish court's own finding that service was adequate.

Arbitration carries its own trap. US federal courts apply a three-year limitation period to confirming a foreign arbitral award, but appellate courts disagree on what happens once that period has passed: some allow a later state-law recognition claim on the same award, others do not. That split has not been resolved nationally, so timing an arbitration-based claim matters as much as its merits. Patterns like this are tracked in our review of non-enforcement cases.

Documents

Spain and the United States are both parties to the Hague Apostille Convention, so a Spanish judgment intended for use in a US court is authenticated by apostille rather than consular legalisation. The apostille confirms only the origin of the document; it does not confirm content or enforceability. A certified English translation is required for filing, and the receiving court sets its own certification format, which this firm checks against the actual filing before advising further. See our cross-border recognition and enforcement service for how that check is scoped.

Timing

Filing fees in US courts are fixed amounts set by the court rather than a percentage of the claim, which makes early cost estimation more predictable than in fee-by-value jurisdictions.

Limitation periods are set state by state and depend on what kind of decision is being enforced. In New York, a foreign money judgment can be enforced for the shorter of its remaining validity in Spain or twenty years, and the state allows a summary judgment procedure instead of a full new lawsuit. Delaware allows fifteen years where Spain has not fixed its own period. California allows the shorter of the Spanish period or ten years, but California has not adopted the uniform recognition statute most other states use, which changes the mechanics of filing there. For an arbitral award, the federal limitation period is three years from the date the award was made. Which period applies to a specific claim depends on where the assets sit and what kind of decision underlies it; a jurisdiction-by-jurisdiction comparison is kept on our limitation periods page.

If the primary route is closed

If the Spanish proceeding produced a judgment rather than an award, the arbitration route is not retroactively available. There is no reciprocal treaty to fall back on, and no conduit jurisdiction shortens the path, since recognising a Spanish judgment in a third country does not by itself make it enforceable in the United States. For disputes that have not yet reached judgment, an arbitration clause pointing to a seat covered by the New York Convention is the one structural change that materially improves the position in the US later. The reverse direction, enforcing a US judgment in Spain, follows an entirely different framework and is covered separately at enforcing a US judgment in Spain. Other pairs enforcing into the United States are indexed at enforcement into the United States.

What to do before filing

Confirm where the debtor actually holds assets before choosing a state, since the applicable recognition statute and limitation period both depend on that answer, not on where the debtor is based or incorporated. Check whether the debtor has moved assets since the Spanish judgment was issued; whether an interim measure is available to slow that down is established by looking at the case file, not assumed from the jurisdiction alone. The outbound side of this pair, what Spain itself requires before a judgment leaves its courts, is covered separately at enforcement from Spain. This firm does not work on a result-only fee, and its registration can be checked in the public register linked in the footer.