Q. I can see the Pension deduction when I run the payroll for Week 1, but there is no AECS (AE Submission) showing for Week 1. Why is that?
A. Please uninstall Thesaurus Payroll and then reinstall it using this link https://downloads.thesaurussoftware.com/tpm-payroll/2026-fullpayroll.exe After that, kindly reopen the payslips for Week 1, then repeat the process from the start. Run the payroll once again, and this time an AECS will be generated for you.
Q. I have a private pension in place that is not paid through payroll. How can I opt out of Auto Enroment?
A. Employees may still be auto-enrolled even if their pension scheme is not listed on their payroll. In such cases, please contact MFF directly, as the software does not support processing opt-outs for these employees.
Q. I run a fortnightly payroll, one week falls into 2025 and the second week in 2026, do I process these separately in the relevant tax year
A. No, the pay date determines the tax year that the fortnight pay period is processed in, regardless of the week ending dates. Therefore, if the pay date is a January date, this will be processed in the 2026 payroll software.
Q. I am getting an error when I request the AEPNs in Thesaurus - Error Code MFFINTERR0035 Authentication Failed with NAERSA
A. Please remove the certificate from Thesaurus, then close the payroll, reopen the company and add the certificate again. Once the certificate is added, try retrieving the RPN and then attempt to retrieve the AEPN once more.
Q. How are the contributions from Employee and Employer actually paid over to Naersa (My Future Fund)?
A. This is not done through the payroll and needs to be setup directly with NAERSA
Q. Some of my employees are being automatically enrolled, but they shouldn’t be. How can I update or change this in the payroll system?
A. The payroll software operates based on the instructions provided by the AEPN from NAERSA. If any adjustments are needed, they will need to be made directly with NAERSA, as these cannot be changed within the payroll system.
Q. What does the error MFFERR033 mean, and how should I resolve it?
A:. The error MFFERR033 (Details : Each of the following should be unique across submissions: Payroll run reference, Tax Year, Employer Registration Number and line item ID. ) indicates that each submission must have a unique combination of Payroll Run Reference, Tax Year, Employer Registration Number, and Line Item ID. This error usually comes from NAERSA and means your submission has already been received and is considered a duplicate, so it has been rejected. We recommend logging into the NAERSA portal to verify the status of your submissions.
