Why is it crucial to know the requirements?
34% of bids are rejected for non-compliance with administrative requirements. A simple missing or expired document can invalidate weeks of proposal preparation work.
This updated guide for 2025 provides you with a complete checklist of all requirements needed to participate in public tenders, including the latest regulatory updates.
Bids rejected for requirements
Basic documents required
Regulatory updates 2025
Required solvency history
2025 Updates
Important regulatory changes you need to know this year
Mandatory Electronic Invoicing
All invoices to the Administration must be electronic via FACe from January 2025
Reinforced ESG Criteria
Greater weight of environmental, social and governance criteria in evaluations
Complete Digitalization
All communications and submissions must be 100% digital
Expanded Social Clauses
New requirements in equality, labor insertion and working conditions
Automatic Registry Verification
Automatic consultation of the Official Registry by contracting bodies
Requirements by Category
Administrative Documentation
- Articles of incorporation and valid powers of attorney
- Updated company tax ID
- Business activity registration and latest receipt
- Tax authority compliance certificate
- Social security compliance certificate
- Responsible declaration according to official template
Economic Solvency
- Annual accounts for the last 3 fiscal years
- Audit report (if applicable)
- Bank solvency certificate
- Valid civil liability insurance
- Business volume declaration
Technical Solvency
- List of similar works executed (last 5 years)
- Certificates of good execution
- Assigned technical team CVs
- Required professional certifications
- Available technical resources and equipment
Regulatory Compliance
- Official registry registration certificate (recommended)
- Equality plan (mandatory for 50+ employees)
- Environmental certification (if required)
- Criminal background check certificate
- Declaration of no contracting prohibition
Document Validity and Deadlines
Documents with Expiration
- Tax certificate6 months
- Social Security certificate6 months
- Liability insuranceAnnual
- Powers of attorneyNo expiration*
Permanent Documents
- Articles of incorporationPermanent
- Company tax IDPermanent
- Business activity registrationPermanent
- Business classification3 years