TUC General Secretary Frances O'Grady said a "good gift" this Father's Day would be for ministers to increase statutory paternity pay rates and for employers to top it up for longer.
Ms O'Grady said: "Poor levels of financial support are preventing new dads from taking extra time off and are particularly affecting low-paid fathers who simply cannot afford to take leave.
"Extending paternity pay from two to six weeks and paying a better statutory rate would make a massive difference, as has been shown in other countries".
More top news
Could the Internet hold the key to easing the burden on our overstretched health service? Dr Oscar Duke reports for Tonight.
An agreement that Syria's Idlib province should be a safe haven is being ignored by its own government, writes John Irvine.
Clear, crisp & freezing cold with fresh falls of snow