Are you talking about rental income or rent that you paid? If it's rental income, that much of a difference is significant and you have to file an amended return.
If it's rent that you paid, was it for your personal home or for a business? If it's for a business it's a significant difference and you have to file an amended return.
If it's rent that you paid for your personal home, it does not affect your federal tax return. What state are you in? Every state has different rules.
