With 78 per cent of the vote counted by 10pm on Saturday,Labor had secured 11 seats and the Greens three,combined tipping the alliance over the required threshold of 13 seats to form government in the ACT's 25 seat legislative assembly.
"I've spoken to Shane Rattenbury[Greens leader] and we will sit down ... over the coming week to put together a new government for this city. But it will be a government that will be led by ACT Labor,"Mr Barr said in his victory speech on Saturday night.
Liberal leader Alistair Coe had campaigned on better services and lower taxes while chief minister Andrew Barr touted the territory's response to the coronavirus pandemic — it has gone 99 days without a COVID-19 case — and bushfires as part of his claim to another term.
"It is a humbling experience to lead a political party,and to lead a government. And particularly in a year like this one,"Mr Barr said.
"We've had an extraordinary series of challenges thrown at us,as a city and as a community,and we've got through it because we've worked together.
"We've got through it because we've applied progressive values to our government decisions and because we've applied compassion and we haven't left people behind."
Mr Rattenbury flagged that his party and Labor would not agree on everything while in government.