I went back on 0.5 after my first child and am currently at the end of maternity leave number 2. I didn't fill in a form, but wrote a letter instead. They denied my request at first and i wrote a letter to appeal, and then the head changed his mind luckily. Have a look at this, there are 8 reasons listed that employers are supposed to give if they turn down a part time request, so make sure that you include something on your form that ensures they can't turn you down for these reasons! http://www.yourrights.org.uk/yourrights/rights-of-workers/contracts-of-employment/flexible-working.html Good luck!