This will be England's first European Championship appearance for eight years following their failure to qualify for Euro 2008 under former manager Steve McClaren.
Club England managing director Adrian Brevington told Sky Sports News: "We are just finalising a few contractual arrangements now. We will be in Poland but I won't be able to say more at this particular moment.
"We are not far away from (confirming the location) but out of respect to all the people we have been dealing with we have to get everything finalised before we make any public statement on it."
Ukraine will also be hosting the tournament but England have opted to be based solely in Poland for the entirety of the competition.
England were based in Rustenburg for the 2010 World Cup in South Africa, an isolated location away from the public eye which proved unpopular with the squad.
FA chairman David Bernstein has said that England would be "good tourists" at future tournaments, promising the team would stay in a more central location after the unhappy experience in South Africa.
England secured top spot in their Euro 2012 qualifying group with a 2-2 draw in Montenegro on Friday.
