Salary Increase Letter (New Zealand)

A Salary Increase Letter in New Zealand sets out the duties, hours, pay, leave, and termination terms between employer and employee, consistent with the minimum entitlements guaranteed by the Employment Relations Act 2000.

In New Zealand, a salary increase letter has direct legal significance under the Employment Relations Act 2000 (ERA). Section 65(2)(b) of the ERA requires that any variation to an individual employment agreement — including a change to the employee's remuneration — must be agreed in writing by both parties. A salary increase letter that is signed by both the employer and the employee therefore serves as the written record of the agreed variation to the employment agreement. An employer who increases an employee's salary without a written record of the agreed variation risks a dispute about the agreed amount and effective date, and may face compliance issues if the change is later contested.

The KiwiSaver Act 2006 is the other key piece of legislation that affects the content of a New Zealand salary increase letter. For employees enrolled in KiwiSaver, employers must make compulsory contributions of at least 3% of the employee's gross salary. When a salary increase is implemented, the employer's KiwiSaver contribution must be recalculated based on the new base salary, and the updated contribution and total package must be communicated to the employee. The Minimum Wage Act 1983 and the current Minimum Wage Order must also be considered: the new salary must meet or exceed the adult minimum wage in force at the effective date.

A well-drafted salary increase letter also supports transparency and good faith in the employment relationship. The good faith obligation in section 4 of the ERA requires employers to be responsive, communicative, and not misleading. Providing the employee with a clear, written record of their new remuneration — including all components of the total package — is consistent with these obligations and reduces the risk of disputes about pay.

A Salary Increase Letter should be issued by any New Zealand employer following a decision to increase an employee's base salary. It is particularly important in the following circumstances.

First, after an annual performance and salary review in which the employer determines that a salary increase is warranted. The salary increase letter records the outcome of the review, the new remuneration, and the basis for the decision, and satisfies the written variation requirement in section 65(2)(b) of the ERA.

Second, when an employee is promoted to a higher position and a corresponding salary increase is agreed. The promotion and salary change represent a variation to the individual employment agreement and must be documented in writing. A separate promotion letter may be issued to confirm the new position and duties, with the salary increase letter recording the remuneration change.

Third, when an employer conducts a market rate review and determines that an employee's salary is below the market rate for their role and experience. A market rate adjustment letter explains the basis for the increase and confirms the new remuneration.

Fourth, when an employee takes on additional responsibilities or an expanded role that warrants a salary adjustment. The salary increase letter documents the new remuneration alongside the role change.

Fifth, when the government's annual minimum wage increase brings the adult minimum wage above an employee's current hourly rate, requiring an uplift. In this circumstance, a salary increase letter should be issued to confirm the new minimum wage-compliant salary from the effective date of the minimum wage increase.

Sixth, when an employer's employment agreements, HR policies, or collective agreement require formal written notification of salary review outcomes. A formal salary increase letter satisfies these requirements and creates a clear, contemporaneous record on the employee's personnel file.

A thorough New Zealand Salary Increase Letter must include the following key elements, each reflecting the statutory requirements of the Employment Relations Act 2000 (ERA), the KiwiSaver Act 2006, and the Minimum Wage Act 1983.

The employer details section identifies the employer by full legal name, NZBN, and business address, together with the name and title of the authorised representative signing the letter. Clear identification of the signatory establishes accountability and confirms the letter is issued with the employer's authority.

The employee details section records the employee's full name, job title, department, and commencement date. Including the commencement date is useful context for the salary review decision and confirms the employee's tenure.

The salary increase outcome section clearly states the employee's current base salary (exclusive of KiwiSaver and other benefits), the new base salary, the dollar amount and percentage of the increase, and the effective date from which the new salary applies. Clarity in this section is essential to satisfy the written variation requirement under section 65(2)(b) of the ERA.

The reason for increase section provides a brief narrative explanation of the basis for the salary increase — whether it is performance-based, a market rate adjustment, a promotion-related increase, a cost of living adjustment, or another factor. This transparency is consistent with the good faith obligation under section 4 of the ERA.

The total remuneration package section sets out the full remuneration package from the effective date, including the new base salary, the updated employer KiwiSaver contribution at the agreed rate (minimum 3% under the KiwiSaver Act 2006), and any allowances or other benefits. Providing the employee with a complete picture of their total package reflects good faith and reduces the risk of remuneration disputes.

The KiwiSaver section confirms that employer contributions will be calculated at the agreed rate on the new base salary, in accordance with the KiwiSaver Act 2006. It should also confirm that the new salary meets or exceeds the adult minimum wage under the Minimum Wage Act 1983.

The conditions section records any conditions attached to the salary increase and confirms that all other terms of the employment agreement remain unchanged except as expressly set out in the letter.

The acceptance section records whether written acceptance is required from the employee and provides signature blocks for both the employer and employee. Under section 65(2)(b) of the ERA, both parties must agree in writing to any variation to the employment agreement — the employee's signature on the salary increase letter satisfies this requirement. The forms-legal.com Salary Increase Letter (New Zealand) provides a ready-to-use template that meets New Zealand legal requirements.