Ipswich Town left back Tyrone Mings, 22, published a text message exchange between him and his mother on his Instagram account.
His mother thanked him for wiping "all my debt away", with Mings replying she deserved "every penny" and saying: "This is why I do it."
A club spokesman said it was a "private matter between Tyrone and his mum".
The player won praise on the social networking site, with one person calling him a "hero" and someone "who all children should look up to and aspire to become".
It is not the first time the footballer has expressed his generosity.
Last July, Mings offered via Twitter to buy new shirts for fans who had his old squad number stamped on their new kits.
Four months previously, he gave  two match tickets to a fan after he complained he had no money.
Mings, who comes from Bath, joined Ipswich Town in 2013 after the manager saw him play for just an hour with non-league side Chippenham Town.
He has been linked with a big money move to Premier League giants Arsenal.

It gives them the same rights as married couples regarding inheritance, pensions and tax allowances.
The law comes into effect on 6 April. Civil partnerships gained legal recognition in the UK in 2006.
Allan Bell, MHK, Minister for Economic Development, who tabled the bill says gay rights have been brought in line with the UK after a 20-year battle.
"It has been an extremely difficult time for gay people wishing to have open, loving caring relationships," he said.
"But gay rights have changed beyond recognition over the last 20 years on the island. It is a very different place now, it is more tolerant, understanding and inclusive."
The Isle of Man has its own parliament and own laws, some of which are very different to those in the UK.
Abortion laws are much stricter, the death penalty was only abolished in 1993 and homosexuality was illegal until 1992.
Same-sex couples on the island have welcomed the bill claiming they have been discriminated against for years.
One man told the BBC that he and his partner were forced to take HIV tests in order to get a mortgage and life insurance on the island.
"I told our broker in no uncertain terms that I didn't want to take out a policy with someone who discriminated against gay people but most on them on the island weren't prepared to give a policy unless the HIV test was taken," he said.
Mr Bell said the island used to have "a very negative image with the UK and Europe".
"The island was subject to a boycott of the UK trade unions who used to use the island for a lot of their conferences," he said.
"We are trying to compete internationally for business and there is still the suspicion that we tend to be a backward society."
"That is no longer the case. This legislation is a major statement to the outside world that we have changed. "
The bill has now passed through both houses of parliament but not without resistance. It has sparked fierce debate among some groups on the island.
Peter Murcott, Methodist preacher, said: "It will have a fundamental change in due course on how the next generation is brought up to conceive family life and ultimately it is going to introduce an anti-Christian attitude and it will be contrary to the beliefs of many other religions as well."
Allan Bell said: "Not everyone will feel comfortable with this legislation but it's been a much easier debate than the fierce resistance we had 20 years ago when we first started this process.
"The gay community on the Isle of Man has been a repressed community on the island for many years.
"Today is a red letter day for the island and for those groups."
A footballer who has become known for "great gestures" has now seemingly paid off his mother's debts.
[NEXT_CONCEPT]
Gay couples on the Isle of Man will get the right to a civil partnership after a new law was signed in Tynwald.