"As the Prime Minister said during the appeal, the Government was ready to step in with a modest contribution if needed."
The funding would be allocated from the Nature Heritage Fund, which enables the acquisition of land for the conservation estate.
Ms Barry said the process from here is for the campaigners to set up a trust or holding company to hold the land until it can be gazetted as part of Abel Tasman National Park and enter Crown ownership.
"I've asked officials to do the necessary consultation and paperwork as quickly as possible. Once it becomes part of the National Park, access to the beach will be secured for the public in perpetuity."
A Givealittle spokeswoman told the Herald this afternoon that they are currently in the process of finalising all the details of the fundraising campaign. They will then directly email every person that pledged money.
Listen: Duane Major talks to Newstalk ZB's Chris Lynch
"From there we will start processing the pledges and we'll let people know in the email exactly what we're going to do."
Because the beach fundraiser was a Givealittle "project" rather than a "cause" it means no money has been drawn yet, she said.
Instead people have provided their credit card details and have made a commitment to pledge.
The emails will be sent out today and will seek confirmation that people are ready for the money to be withdrawn from their account.
The spokeswoman said with all Givealittle projects, there is always a risk of people backtracking on their pledges.
"But we know with this - people really want to be a part of it, and in fact we've had lots of people call and say 'I missed the deadline, can I still contribute'. So we expect that [people back-tracking] will be a very small amount, but there's always an element of that with any cause or any project.
"So that's been taken into account from the beginning, we have a process for managing that."
Campaign organiser Duane Major said this morning of their victory: "We have pulled it off, we have pulled it off. At 10.57 last night we delivered a pristine piece of beach and bush into the hands of all New Zealanders to look after and cherish and treasure forever.
"My heart is beating and I've got goosebumps and I'm just so thankful for all those people. What a crazy journey."
Mr Major revealed that the final amount raised by the public was $2,278,171.09.
"I always thought we could do it. You think about the heartbeat of New Zealanders and you think about the numbers. I did not anticipate the crazy, freakish nature of this campaign but boy is this rewarding. It's satisfying to actually pull it off and to take those ideas and hunches and feelings and to put it into practice."
He said the victory had left them with a deep down sense of satisfaction. "We've done something very special I believe."
Abel Tasman campaign: Timeline
January 22, 2016 - The "Pristine beach in the heart of the Abel Tasman" project is launched on crowd-fundraising website Givealittle, asking for $2 million to buy the seven hectare private beach in Abel Tasman National Park's Awaroa Inlet.
January 26 - The page has seven pledges worth $6300.
January 27 - Spark pledges $20,000 to the Givealittle campaign, which is now at $250,000 with close to 4500 people donating.
January 31 - More than $600,000 has been pledged by 9273 people.
February 3 - Conservation Minister Maggie Barry confirms that the beach will be added to the Abel Tasman National Park if the online campaign succeeds. More than 11,000 have so far raised $750,000.
February 7 - The Givealittle campaign breaks $1 million, with more than 15,000 pledges. Labour leader Andrew Little says the Government should make it a Waitangi weekend to remember by agreeing to meet the remaining cost of buying the beach.
February 9 - More than $1.3 million has been pledged by over 20,000 donors. Millionaire Gareth Morgan offers to front the remaining money, but his offer comes with conditions. He writes on his blog that he will cover the difference needed, but he wants the section of beach that is currently private to remain that way - for his family.
February 10 - A total of $1,520,982.30 has been pledged by more than 24,000 people and businesses. Gareth Morgan's offer is met with outrage, with some people saying they will retract their pledges. The men behind the Givealittle campaign, Adam Gardner and Duane Major, assure pledgers they do not want Morgan's money.
February 12 - The campaign reaches its $2 million target, with more than 33,200 people and businesses donating.
February 15 - Campaign closes, generating more than $2 million. There are donations from 39,249 people and businesses. The final tally is kept secret. Gareth Morgan claims it was his cunning scheme that helped push up donations.
February 16 - The deadline closes for offers to buy the beach. A spokesman for Conservation Minister Maggie Barry says the Government has not ruled out making a "a modest contribution to the appeal should the need arise," but saysat this stage, no commitment has been made.
February 24 - Campaign is successful. Organiser Duane Major announces that the public fundraising effort was enough to secure the beach, with a total of $2,278,171.09 donated. The Government also supports the bid with a "modest" contribution. Mr Major says the piece of beach and bush was delivered into the hands of all New Zealanders at 10.57pm the night before.