Snow, 70, is thought to have been one of the highest-paid newsreaders in Britain.
He told the Daily Mail: “I’ve taken a gender pay cut.
“I did it as a co-operative gesture. I took the cut over two months ago, 25%.
“Alas, contractually, I am not able to disclose my salary then or now.”
Channel 4, which employs Snow, has previously said it is “unacceptable” that the channel has a gender pay gap of 28.6%.
Earlier this year, ITN, which makes daily news programmes for ITV, Channel 4 and Channel 5, revealed it had a 19.6% gender pay gap.
Cathy Newman, who co-hosts Channel 4 news, tweeted: “ITN has 19.6% gender pay gap and staggering 77% bonus gap.
“Shows just how pervasive inequality is. I’m very fortunate to be fairly paid but I will continue speaking out for the many colleagues who aren’t.”
It compares with a report on BBC staff which found the equivalent gender pay gap was 10.7%.
The gender pay gap has been in the headlines since the salaries of top BBC talent were revealed.
Radio 2’s Chris Evans topped the list on more than £2 million, while the highest paid woman was Claudia Winkleman on between £450,000 and £499,999.
Today programme host John Humphrys volunteered to slash his salary, which has been cut from £600,000 to £650,000 to around £250,000 to £300,000.
He previously told the Press Association: “The BBC is in a very, very different position from what it was all those years ago when I was, like many other people in the BBC, having money pretty much thrust upon us, because there was loads of money in the BBC...
“There was no shortage of cash.”