The Royals shot-stopper has been earning rave reviews for his efforts over recent weeks, with a star showing against Liverpool last weekend about as complete a performance as you are likely to see.
McCarthy is, however, keeping his feet on the ground and feels it is too early to suggest that he will soon be challenging Manchester City's Joe Hart for the England number one jersey.
The 23-year-old said: "As much as I have loved every minute of breaking into the Premier League this season, I can't be considered in the same breath as Joe Hart as an England keeper yet.
"I need another couple of seasons playing in the Premier League then I'll definitely be interested in representing my country. It's a dream."
The problem facing McCarthy at present is that he may not be a top-flight performer for much longer, with Reading having slumped to the foot of the table - 10 points from safety with only five games remaining.
He added: "Obviously I want to stay in the top league, it's the best place to be. But with our situation it's looking difficult.
"There's no pressure on us now because everyone expects us to go down, so we've just got to win the next game and see where each one takes us."