Calculating Living Wage Gaps Under the ASC Farm Standard

Understanding Living Wage Requirements in Aquaculture

The Aquaculture Stewardship Council Farm Standard establishes social requirements under Principle 3 to ensure fair working conditions across certified operations. Within Criterion 3.8, the standard addresses worker compensation by establishing a clear distinction between legal minimum wages and living wages. While legal minimum wages represent statutory baselines, a living wage reflects the total remuneration necessary for a worker and their family to afford a decent standard of living, covering essential needs such as food, water, housing, healthcare, education, transport, and unexpected events.

Indicator 3.8.1 mandates that every Unit of Certification sets basic wages at or above legal minimum wage thresholds before accounting for overtime hours or performance bonuses. In jurisdictions where statutory minimum wages do not exist, such as Denmark or Norway, employers must calculate base pay rates through direct consultation with workers or trade union representatives. Building upon this legal baseline, Indicator 3.8.2 requires facilities to calculate actual employee remuneration annually and benchmark these figures against location-specific living wage benchmarks published on the ASC website.

Understanding the regulatory intent behind Criterion 3.8 is crucial for quality leads and compliance officers. The standard requires annual assessment, wage gap identification, and confidential reporting to ASC under Indicator 3.8.3, alongside structured improvement planning under Indicator 3.8.4. However, the standard does not mandate the immediate closure of identified wage gaps or force immediate salary increases. Instead, it establishes a transparent measurement framework that encourages progressive wage improvements over time while maintaining operational viability.

Assessing Remuneration and Calculating Wage Gaps

To measure living wage gaps accurately under Indicator 3.8.2, facilities must follow the methodology detailed in Appendix 11 of the ASC Farm Standard. Although facilities may use custom calculation tools aligned with the Anker Research Institute methodology, ASC strongly recommends using the IDH Salary Matrix. This tool standardises data collection and simplifies complex calculations across diverse workforce structures.

To execute a compliant remuneration assessment using the IDH Salary Matrix, quality managers must follow five sequential steps:

• Define the worker sampling scope under Appendix 11.2. Facilities may collect anonymised pay records for all site personnel under Option A, or select Option B to sample the majority of workers, provided the sample includes the four largest job categories, the lowest-paid employees, and temporary workers.
• Gather payroll records from the preceding calendar year. Audits conducted in 2025 must evaluate wage and benefit data from January to December 2024 against corresponding 2024 living wage benchmarks from the Anker Research Institute or WageIndicator Foundation.
• Filter compensation items to isolate allowable cash remuneration. Under Appendix 11.3, allowable items must be receipt-assured, received within one year, earned during standard working hours, and paid in legal tender. Basic wages, cost-of-living adjustments, thirteenth-month payments, housing allowances, and regular production bonuses are included. Overtime premium pay, holiday time-off allowances, maternity leave pay, mandatory employer social security contributions, and private medical insurance must be excluded.
• Quantify allowable in-kind benefits following Appendix 11.4. Benefits like meals or housing are valued at the lowest of employer cost, replacement market cost, or benchmark allocation value, minus worker co-payments. Total in-kind allowances must never exceed thirty percent of total wages, with housing capped at fifteen percent and meals or transport capped at ten percent.
• Calculate the living wage gap percentage for each job category and gender classification. The gap represents the percentage difference between total allowable monthly remuneration and the official local living wage benchmark.

Structuring the Three-Year Wage Improvement Plan

Where remuneration assessment reveals that any employee category receives compensation below the local living wage benchmark, Indicator 3.8.4 mandates the development and execution of a wage improvement plan. This document transforms baseline gap data into actionable, multi-year organizational targets designed to move worker compensation progressively towards living wage thresholds.

A compliant wage improvement plan must cover a rolling three-year period and explicitly list every job category where a wage gap exists. The plan must establish specific monetary targets and implementation timelines for each group. Furthermore, the plan must incorporate annual progress reviews that compare actual wage adjustments against previous annual goals, providing clear justifications whenever targets are not met. Facilities may utilise the official ASC Wage Improvement Plan template or specialized tools like the GIZ Living Wage Costing Tool to evaluate financial feasibility.

Example

An internal audit at a warmwater prawn farm in South East Asia evaluates compliance with Criterion 3.8. The facility utilizes the IDH Salary Matrix to assess 120 pond technicians and processing workers against an Anker living wage benchmark of 350 US Dollars per month.

The initial payroll review reveals that junior pond technicians receive a basic cash wage of 280 US Dollars, 20 US Dollars in guaranteed monthly attendance bonuses, and canteen meals valued at 40 US Dollars per month. The facility initially calculates total remuneration as 340 US Dollars, claiming a narrow gap of 2.9 per cent. However, the auditor discovers that 20 US Dollars of the cash wage represents compulsory overtime pay, and canteen meals exceed the ten per cent cap for food benefits under Appendix 11.4.

After removing overtime pay and capping the food benefit at the allowable ten per cent limit of 28 US Dollars, revised allowable monthly remuneration is 308 US Dollars. This establishes an actual living wage gap of 12 per cent. To achieve compliance under Indicator 3.8.4, the facility drafts a three-year wage improvement plan. The plan commits to increasing basic wages by 4 per cent annually over three years, approved by senior management and supported by annual progress tracking in the IDH Salary Matrix.

Audit Assessment Matrix and Evidence Verification

Internal auditors must systematically examine wage calculation worksheets, payroll registers, and improvement plans to confirm compliance with Criterion 3.8. The matrix below outlines primary audit focus areas and necessary verification evidence.

Before your audit

• Confirm basic wages for all employee categories meet or exceed statutory minimum wage rates prior to calculating overtime or performance bonuses.
• Verify that living wage calculations utilize official benchmark figures published on the ASC website for the specific farm location and calendar year.
• Ensure that employee sampling under Appendix 11.2 includes the four largest job roles, lowest-paid workers, and temporary personnel.
• Review the IDH Salary Matrix to confirm that overtime pay, holiday time-off pay, and mandatory social security contributions are completely excluded from remuneration totals.
• Check that in-kind benefits for housing and meals do not exceed their respective fifteen per cent and ten per cent caps under Appendix 11.4.
• Confirm that annual living wage gap data derived from the prior calendar year has been successfully uploaded to the MyASC portal.
• Verify that an approved three-year wage improvement plan is in place for all job categories where a living wage gap was identified.
• Inspect worker pay slips to ensure clear, itemized reporting of base wages, overtime hours, and legal deductions.

Questions people ask

Does the ASC Farm Standard force farms to immediately pay a living wage to all workers?

No, the ASC Farm Standard focuses on measuring, benchmarking, and reporting living wage gaps rather than mandating immediate gap closure. Facilities with identified wage gaps must create and execute a realistic three-year wage improvement plan to raise wages progressively over time.

Which compensation elements must be excluded when calculating employee remuneration in the IDH Salary Matrix?

Remuneration calculations under Appendix 11 must strictly exclude overtime pay, premium pay for weekend or holiday work, time off for annual leave or sick leave, maternity and paternity pay, mandatory employer social security contributions, and employer-funded private medical insurance.

How are in-kind housing and meal benefits capped under ASC living wage rules?

Under Appendix 11.4, total combined in-kind benefits cannot exceed thirty per cent of an employee's total wage. Furthermore, housing benefits are capped at fifteen per cent, while other in-kind benefits like meals and transportation are capped at ten per cent.

What sampling options exist for farms when collecting worker pay data for living wage assessments?

Farms may collect anonymised remuneration data for all employees under Option A, or select Option B to sample the majority of workers. Option B samples must include the four largest job categories, the lowest-paid employees, and temporary workers.

Reference documents

• ASC Farm Standard, Version V1.0.1A2 (August 2026)
• ASC Farm Standard Interpretation Manual, Version V1.0.1 (September 2025)
• ASC Farm and Feed Certification and Accreditation Requirements (CAR), Version V1.0 (May 2025)
• ASC Farm Requirements for Unit of Certification (RUoC), Version V1.0.1 (July 2023)