hi new to here so hi to all.im after some advice im a single parent i work part time as a cleaner my working tax credits are due for renewal and im a bit worried over last few months did a few bits of overtime and dont no how this will effect my wtc will they lessen it a lot ? just worried im not going to be able to manage ive tried putting my years earnings into the calculaters but doesnt really tell me anything anyone any ideas ? thanks x