City on 9 February 2013. After months on the sidelines, where he appeared on the bench on two occasions, Harding made his return in a 1–0 win over Millwall. Harding finished his first season at Nottingham Forest making twenty league appearances. Harding started the 2013–14 season as an unused substitute before making his first start in a 3–1 win over Hartlepool United in the first round of League Cup. Harding played against Derby County, but was barely used in the first team as Chris Cohen was preferred in the left-back position. Harding made five appearances when Cohen was injured but then returned to the substitutes bench following the arrival of Danny Fox in January. Harding provided an assist for Jamie Paterson in a 2–1 loss against Millwall on 5 April 2014. He went on to make nineteen appearances for the club. Ahead of the 2014–15 season there were suggestions that Harding might be sold by Forest, and he was approached by Orlando City about a move abroad. Having initially become a first team regular under manager Stuart Pearce, he was left out of the squad ahead of the match against Sheffield Wednesday in favour of Fox. In the first half of the season Harding had made eight appearances for the club. His manager Pearce praised Harding's attitude in fighting for his place in the team. On 5 January 2015, Harding was loaned to Championship rivals Millwall until the end of the season. Five days after signing for the club, Harding made his Millwall debut at left-back in a 1–0 loss against Blackpool. Harding became a regular in the first team, making twenty appearances as Millwall were relegated to League One. After his loan spell at Millwall came to an end Harding was among four players released by Nottingham Forest. Eastleigh Harding signed a two-year deal with National League club Eastleigh in August 2015 having turned down a move to Portsmouth, given his links with rivals Southampton. Harding made his Eastleigh debut at left-back in the opening game of the season in a 4–0 win over Southport. After his debut Harding established himself in the first team and made nineteen appearances until he suffered a calf injury during the first round of the FA Cup against Crewe Alexandra. After a month on the sidelines Harding made his return to the first team in a 1–1 draw against Aldershot Town. In mid-February