BBC Sport outlines the battles for promotion and relegation - and the race for Europe - in England and Scotland.
PREMIER LEAGUE
The top three teams will qualify for the group stage of next season's Champions League, with the fourth-placed team entering in the play-off round.
The fifth-placed team will enter the Europa League at the group stage, as will the FA Cup winners.
Manchester City are already assured of at least a Europa League place after winning the Capital One Cup. If they finish in the top four, their place in the Europa third qualifying round will pass to the sixth-placed team.
Should City win the Champions League and finish outside the top four, they will enter the Champions League at the group stage.
Should Liverpool win the Europa League, they will qualify for the Champions League.
There are no longer any Fair Play places allocated to the Europa League.
The bottom three teams will be relegated to the Championship - with Aston Villa in an increasingly perilous position.
CHAMPIONSHIP
The top two teams will be promoted to the Premier League, with the next four teams entering the play-offs. Leaders Burnley are close to making sure of at least a play-off place.
The bottom three teams will be relegated to League One - with Bolton looking likely to fill one of those positions.
LEAGUE ONE
The top two teams will be promoted to the Championship, with the next four teams entering the play-offs.
The bottom four teams will be relegated to League Two.
LEAGUE TWO
The top three teams will be promoted to League One, with the next four teams entering the play-offs. Leaders Northampton have made sure of at least a play-off place.
The bottom two teams will be relegated to the National League.
NATIONAL LEAGUE
The National League champions - looking likely to be Cheltenham or Forest Green - will be promoted to League Two, with the next four teams entering the play-offs.
The bottom four teams will be relegated, and replaced by the champions and play-off winners of the National League North and South divisions.
SCOTTISH PREMIERSHIP
The Premiership will split in half after the 33rd round of games on 9 April, with the top six and the bottom six playing the other teams in their 'half' for a fourth and final time.
The champions will enter the Champions League at the second qualifying round, with the second and third-placed teams making the Europa League first qualifying round, while the Scottish Cup winners will enter the second qualifying round.
Should Celtic win the Premiership and the Scottish Cup, the fourth-placed side in the league will qualify for the Europa League.
Celtic and Aberdeen are already assured of at least a Europa League place through their league position.
There are no longer any Fair Play places allocated to the Europa League.
The bottom side will be relegated to the Scottish Championship, while the 11th-placed side will face the winners of the Championship play-offs over two legs, with the losers condemned to a place in the second tier next season.
SCOTTISH CHAMPIONSHIP
The champions will be promoted to the Premiership.
The third and fourth-placed teams will meet in the first round of the play-offs, with the winners playing the division's second-placed team. Whoever emerges victorious from that two-legged encounter will face the second bottom side in the Premiership - again on a home and away basis - with a spot in the top flight the prize.
Rangers and Falkirk are assured of at least a play-off place.
The bottom club will be relegated to League One, with Alloa 13 points adrift with five games to play. The ninth-placed team will enter a play-off with three League One sides.
SCOTTISH LEAGUE ONE
Dunfermline Athletic will be promoted to the Championship after clinching the title on 26 March by beating Brechin City 3-1. The next three teams will enter a play-off with the ninth-placed Championship side, with Peterhead and Ayr United guaranteed to be two of those three.
The bottom team will be relegated to League Two, with the ninth-placed team entering a play-off..
SCOTTISH LEAGUE TWO
The champions will be promoted to League One, while teams finishing second, third and fourth will enter a play-off with the ninth-placed League One team.
The team finishing bottom will enter a play-off against a candidate club (the winner of a play-off between the Highland and Lowland League champions, or another eligible club nominated by the Scottish Football Association) for the final place in next season's League Two.