The Burnley midfielder’s punishment, which also includes a fine of £30,000 and costs, is effective immediately after he was found guilty after a hearing in March of placing 1,260 bets on matches between 26 March 2006 and 13 May 2016.
The written reasons for the guilty verdict and the length of the sentence are set to be published today or tomorrow at the latest.
But the indications are that the length of the ban is increased not only due to the number of offences but also because a number of them involved betting against teams he was playing for to win.
Integrity is at the heart of the clampdown on betting in the game, which the FA ramped up in 2013 when Andros Townsend was given a four-month ban.
Players and staff at clubs were reminded of their responsibility not to bet on any football match anywhere in the world.
Joey Barton feels the FA have treated him unfairly Joey Barton: Biggest betting losses revealed Wed, April 26, 2017
Click through the gallery to reveal Joey Barton's biggest losing bets
Play slideshow Getty Images 1 of 9
Click to reveal Joey Barton's biggest betting losses
Nevertheless, Barton feels that the game is being hypocritical in their sentence, accusing the FA of scapegoating him when they do nothing to discourage gambling in football.
“To be clear from the outset here this is not match fixing and at no point in any of this is my integrity in question. I accept that I broke the rules governing professional footballers, but I do feel the penalty is heavier than it might be for other less controversial players.
“I have fought addiction to gambling and provided the FA with a medical report about my problem. I’m disappointed it wasn’t taken into proper consideration.
Joey Barton has been banned from football for 18 months
“I think if the FA is truly serious about tackling the culture of gambling in football, it needs to look at its own dependence on the gambling companies, their role in football and in sports broadcasting, rather than just blaming the players who place a bet.” And he went on to explain why he backed his own team to lose.
“On the few occasions where I placed a bet on my own team to lose, I was not involved in the match day squad for any of those games,” he said. “I did not play. I was not even on the bench.
“I should add that on some of those occasions, my placing of the bet on my own team to lose was an expression of my anger and frustration at not being picked or being unable to play. I understand people will think that is childish and selfish and I cannot disagree with that.”