“If, then” statements require commas to separate the two clauses that result.
If I use correct punctuation, then I will include commas where necessary.
If Hillary Clinton wins the election in 2008, then she will become the first female president.
Even when the statement drops the word then, a comma must be used.
If Santa Clause was real, he would bring me a new bike.
If I had the money, I would go to Krakow for vacation.