
Your credit score is affected by how long your credit history has been. Your credit history can be extended with patience and diligence. To improve your credit score, you can become an authorized user for a credit card account. Once you become an authorized user, your credit card issuer has to report your credit information the national credit reporting agencies.
Average age accounts
The average age in credit history is the number of years each credit account was open. The longer your account history, the higher your credit score, especially if all other aspects of your credit are in good standing. Although it is not part of your FICO credit score breakdown but falls under the category length of credit history,
You can add all accounts and divide by the number of cards to calculate your average account ages. You should avoid opening too many accounts. This will reduce your average age. However, the older your account age, the better. Keep in mind, however, that not all accounts are created equal.

Credit card average age
You can learn a lot from your credit history by looking at the average age for credit cards. This takes into consideration the age of each card and how many you have. The average age is approximately eight years. This can be affected by how old the account is and when it was last used.
The average age for credit cards varies depending on where you live. Rural and commuter residents may not have much financial activity or have a few small businesses. However, they do spend a lot of time commuting, which can lead to borrowing. In both cases, the first credit card is typically obtained by adults between the ages of 21 and 24.
Average age of your payment history
Rating credit cards is affected by your average payment history age. This number is calculated using the average age of all credit accounts, divided by the number of accounts. A solid credit rating is likely to be achieved if you are over eighteen years old. Be careful, however, as you may see your average age decrease if there are multiple credit cards you have opened.
Your credit score will be determined by how old your payments have been. But that's just one factor. Other important factors are the amount owed to lenders as well as your payment history. You can build good credit by paying your bills on-time and keeping your credit utilization rate low.

Average age of all accounts
Creditors use this factor to determine your risk. It is calculated by adding the oldest and most recent accounts to the number of accounts. A younger average age is preferable to a older one. However, you should avoid opening several credit accounts at the same time. This is because opening too many credit accounts at once can reduce your average age.
Your credit score is determined by the weight of your oldest account. Newer accounts have less weight. You can also increase your account's average age by adding family members or friends to existing accounts. Before adding a friend or family member to your card, you should inquire about the card issuer's reporting policies.