Good credit is a credit score above 660. It takes two years on average to earn a good credit score rating for a person who has no established credit. It is a necessary period of time so that an individual can demonstrate good payment habits. On time payments on a consistent basis will show the credit bureaus and any potential lenders that an applicant is credit worthy. It may take an individual longer to earn good credit standing if they had past experiences with late payments or other situations such as a home foreclosure. For individuals in this category they may need to review their credit report on a regular basis.