Hello everyone

I have an employee who would like me to take an extra $25.00 out of her fortnightly wage. She would like this amount taken out as a way of forced savings/extra tax rebate as per her accountants advice. I have typed 25.00 in the "extra Tax" box in her employee profile, but it doesn't make a difference to her pay? Anyone have any idea why, or what I'm doing wrong?
Thank you all in advance
