Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas ...

Terms apply to American Express benefits and offers. Visit americanexpress.com to learn more. Most credit cards are assigned a fixed credit limit when you open the account. This line of credit can be ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Kelvin Murray / Getty Images The IRS sets ...