payback.ie

We often get customers querying if PRSI, PAYE, USC or Income levy are being correctly calculated.
Payback has undergone extensive testing. We use the following methods to test calculations:

- In house testing with our technicians. Calculations are manually calculated.
- In house testing, comparision with other products.
- Beta testing with a selection of existing customers who have elected to be beta testers.
(The PRSI and PAYE algorithms have been in the wild since 2004, so that's a huge number of payslips!)

Some of the more complex calculations, especially for PRSI, often give different results depending on the method of calculation used. We have noticed that different payroll products will often give different results, especially when various ceilings are breached. Sometimes these differences can be significant, especially for highly paid monthly employees.

We are fully confident that Payback calculates the figures correctly.

In the past, when customers have queried the results, our support technicians have spent hours manually calculating PRSI, USC, Income Levy and PAYE, this always confirms that Payback is correct. Often the customer is using incorrect rates or making incorrect assumptions. Sometimes the customer is using an equally valid, but different method to calculate figures. Due to the time consuming and resource intensive nature of these queries, we will no longer be doing this.

The USC FAQ is here:
http://www.revenue.ie/en/tax/usc/univer ... e-faqs.pdf

The Income Levy FAQ is here:
http://www.revenue.ie/en/practitioner/l ... e-levy.pdf

PRSI Rates can be found here:
http://www.dsfa.ie/EN/Publications/SW14 ... Index.aspx