Key data
| Regulation | XXIII Collective Agreement for ground staff of Iberia Líneas Aéreas de España, SA, Operadora SU |
|---|---|
| Publication | June 3, 2026 |
| Entry into force | January 1, 2026 |
| Validity | January 1, 2026 – December 31, 2029 (annual tacit renewal) |
| Affected parties | All Iberia ground staff at work centers in national territory, excluding senior executives with Senior Manager rank or above |
| Category | Labor Legislation |
| Signature | March 6, 2026 |
| Registration | General Labor Directorate |
All Iberia ground staff in Spain have new rules of the game as of January 1, 2026. The XXIII Collective Agreement, signed on March 6, 2026 and published in the Official State Gazette on June 3, 2026, regulates working conditions until December 31, 2029, with annual tacit renewal if not terminated. For HR departments and union representatives, this agreement is the mandatory reference framework for the next four years.
What does this regulation establish?
The XXIII Collective Agreement structures labor relations for Iberia ground staff around five major blocks:
| Block | Main content |
|---|---|
| Scope of application | All ground staff at work centers in national territory. Excluded: senior executives with Senior Manager rank or above. |
| Salary structure and seniority | Mechanisms for salary compensation and absorption are established. Seniority clauses are considered key for purposes of total linkage of the agreement. |
| Union guarantees | Reinforced union guarantees and proportional representation of union delegates according to work center size. |
| Total linkage | Clause that activates mandatory arbitration if a judicial ruling annuls key clauses (seniority, salary structure), under the premise of no increase in the agreed wage bill. |
| Work organization | Management retains the power of technical work organization. Workers commit to collaborating in service quality. |
The total linkage clause is one of the most legally relevant elements: if a court annuls any of the clauses considered essential—especially those relating to seniority and salary structure—the agreement does not fall in its entirety, but rather a mechanism of mandatory arbitration is activated to rebalance the agreement without exceeding the agreed wage bill. This protects the stability of the agreement against partial challenges.
The validity is four full years (2026-2029), with annual tacit renewal if none of the parties terminates it before its expiration.
Economic and operational impact
The agreement expressly establishes that the agreed wage bill cannot be increased. This means that any internal adjustment in the remuneration structure—due to reorganization, category changes or application of seniority clauses—must be made within the economic framework already agreed, without additional cost to the company beyond what was agreed.
The mechanisms of compensation and salary absorption allow management to neutralize external salary improvements (SMI increases, for example) against the remuneration already agreed in the collective agreement, provided that the overall result is not less than the legal minimum. This is a relevant labor cost control instrument for four-year financial planning.
Reinforced union guarantees and proportional representation of delegates according to center size imply greater capacity for union dialogue in large centers, which can result in more complex negotiation processes for organizational changes or shift changes.
The power of technical work organization reserved to management is a relevant counterbalance: it allows adapting operations without needing to renegotiate the agreement, always within the limits it establishes.
Who does it affect?
- Iberia ground staff in Spain: all workers assigned to work centers in national territory, regardless of their professional category, except those expressly excluded.
- Excluded executives: employees with Senior Manager rank or above are outside the scope of the agreement.
- Iberia HR departments: must apply the new compensation and salary absorption mechanisms and manage proportional union representation by center.
- Union representatives: the agreement reinforces their guarantees and establishes proportionality criteria for the appointment of delegates according to center size.
- Operations management: retains the power of technical work organization, which affects shift planning, task assignment and service quality management.
Practical example
Imagine an Iberia work center at Madrid-Barajas airport with a ground staff of 400 people. With the new agreement:
- Union representation is calculated proportionally to the size of the center, so a center of this size will have more union delegates than one with 50 workers, in direct application of the reinforced union guarantees.
- If management decides to reorganize handling shifts, it can do so in exercise of its power of technical work organization, without needing to renegotiate the agreement, although workers have the commitment to collaborate in service quality.
- If an SMI increase in 2027 raises the legal minimum wage above some remuneration bracket of the agreement, the company can apply the mechanisms of compensation and absorption to neutralize that increase against what was already agreed, provided that the overall result is not less than the legal minimum.
- If a union judicially challenges the seniority clause and the court annuls it, the entire agreement does not fall: mandatory arbitration is activated to rebalance the agreement without exceeding the agreed wage bill.
What should companies do now?
- Review the current salary structure to verify that compensation and absorption mechanisms are correctly configured and the wage bill agreed in the agreement is not exceeded.
- Update union representation records by work center, applying the proportionality criteria according to size established by the new agreement.
- Identify key clauses (seniority and salary structure) and evaluate their legal soundness, given that a possible judicial challenge would activate mandatory arbitration.
- Inform operations managers about the scope of the power of technical work organization reserved to management, so they can exercise it with legal certainty.
- Plan for four years the remuneration and labor relations policy within the framework of the agreement (2026-2029), taking into account the annual tacit renewal if not terminated before December 31, 2029.
- Consult with specialized labor advisors any organizational change that may affect the agreed conditions, especially regarding shift changes, professional categories or functional mobility.
Frequently asked questions
When does the XXIII Collective Agreement for Iberia ground staff come into force?
The agreement takes effect from January 1, 2026, although it was signed on March 6, 2026 and published in the Official State Gazette on June 3, 2026. Its validity extends until December 31, 2029, with annual tacit renewal if not terminated before its expiration.
Who is excluded from the Iberia ground staff collective agreement?
Senior executives with Senior Manager rank or above are excluded from the scope of the agreement. The rest of the ground staff at work centers in national territory are included.
What happens if a court annuls a clause of the Iberia agreement?
The agreement includes a total linkage clause with mandatory arbitration: if a judicial ruling annuls key clauses—especially those relating to seniority and salary structure—the entire agreement does not fall. Instead, a mechanism of mandatory arbitration is activated to rebalance the agreement, under the premise of no increase in the agreed wage bill.
Can Iberia reorganize work without renegotiating the agreement?
Yes. The agreement expressly reserves to management the power of technical work organization. Workers, for their part, commit to collaborating in service quality. This allows adapting operations without needing to renegotiate the agreement, within the limits it establishes.
How is the number of union delegates determined at each Iberia center?
The agreement establishes proportional representation of union delegates according to work center size. Centers with larger staff will have more delegates, in application of the reinforced union guarantees included in the agreement.
Official source
Consult complete regulation in official source
Disclaimer: This article is for informational purposes only and does not constitute legal advice. For specific decisions, consult a qualified professional. Source: https://www.boe.es/diario_boe/txt.php?id=BOE-A-2026-11928