An Extension Letter is commonly used in Irish business and legal practice when parties wish to continue their contractual relationship beyond the original term of their agreement. This document type is particularly valuable when the only material change required is to the duration of the contract, avoiding the need for a full contract renewal or amendment. The Extension Letter must comply with Irish contract law and typically includes reference to the original agreement, clear statement of the extension period, confirmation that other terms remain unchanged, and proper execution blocks. It's frequently used in commercial contexts such as service agreements, leases, employment contracts, and supplier arrangements. The document provides a streamlined approach to contract extension while ensuring legal certainty and compliance with Irish statutory requirements.

1. Letter Header: Full legal names and addresses of both parties, date, and reference number

2. Original Agreement Reference: Clear identification of the agreement being extended, including its date and parties

3. Extension Terms: Explicit statement of the new extension period and effective date

4. Consideration Statement: Statement of any consideration (if applicable) to make the extension legally binding

5. Confirmation of Other Terms: Statement confirming all other terms of the original agreement remain unchanged

6. Execution Block: Signature blocks for all parties