The announcement follows a consultation earlier this year, in which the Government sought views from members of the public about organ donation, receiving an unprecedented 17,000 responses.
While the new system shifts the balance of presumption in favour of organ donation, those who do not wish to donate their organs will still be able to record their decision on the NHS Organ Donor Register, either via NHS Blood and Transplant's website or by calling their helpline.
According to research, 82% of people in England support organ donation but only 37% have signed up to the register.
Jackie Doyle-Price, parliamentary under-secretary of state for mental health and Inequalities said: 'Organ donation saves lives. We believe that by making these changes, we can save as many as 700 more lives every year.
Organ donation is only possible in around 1 per cent of deaths and the number of people waiting for a suitable organ far outstrips the number donated organs available.
'I want to encourage people who wish to give life in the event of their death to take the time to record their wishes and discuss it with their family.
'We need to address myths and misconceptions around donation, and we will only do this by having informed debate and dialogue, which I hope will be fostered by these proposals'.
Some 411 people in the United Kingdom died on the transplant waiting list in 2017.
A new system of "presumed consent" is set to be introduced in England, in line with Scotland and Wales, in spring 2020 as part of a drive to help those people desperately waiting for a life-saving transplant.