Should Credit Cards Be Included in Calculating Portfolio Return

When calculating your portfolio return, the question of whether to include credit card debt arises frequently. While credit cards can be a useful financial tool, they also represent debt that can significantly impact your overall financial performance. This guide explains when and how to include credit card debt in your portfolio return calculations.

Should Credit Cards Be Included in Portfolio Return?

The short answer is yes, but with important caveats. Credit card debt should be included in your portfolio return calculations if:

You have a significant amount of credit card debt relative to your portfolio value
You're actively paying down the debt and want to track your progress
You're considering refinancing or consolidating your debt
You want to understand the true cost of your debt relative to your investments

However, you should generally exclude credit card debt from your portfolio return calculations if:

Your credit card debt is small compared to your portfolio value
You're using credit cards for strategic purposes (like earning rewards)
You're not actively paying down the debt and it's not affecting your financial decisions

Remember that credit card debt is typically considered a liability, not an asset, in financial calculations. Including it in your portfolio return can give you a more complete picture of your financial health.

How to Include Credit Card Debt in Portfolio Return

There are several methods to include credit card debt in your portfolio return calculations:

1. Net Worth Approach

Calculate your net worth by subtracting total credit card debt from your total assets (including investments). Then calculate the return on your net worth over time.

Net Worth Return Formula:

Net Worth Return = [(Final Net Worth - Initial Net Worth) / Initial Net Worth] × 100%

Where Net Worth = Total Assets - Total Liabilities (including credit card debt)

2. Total Financial Position Approach

Calculate the total value of your financial position by including both assets and liabilities, then calculate the return on this total value.

Total Financial Position Return Formula:

Total Financial Return = [(Final Total Value - Initial Total Value) / Initial Total Value] × 100%

Where Total Value = Total Assets - Total Liabilities (including credit card debt)

3. Debt-to-Equity Ratio

Calculate your debt-to-equity ratio to understand the proportion of your financial position that is debt versus equity.

Debt-to-Equity Ratio Formula:

Debt-to-Equity Ratio = Total Debt / Total Equity

Where Total Debt includes credit card debt and other liabilities

Impact of Credit Card Debt on Portfolio Returns

Credit card debt can have several impacts on your portfolio returns:

1. Interest Costs

Credit card interest rates are typically higher than savings or investment returns, reducing your overall financial performance.

2. Financial Stress

High credit card debt can lead to financial stress, which may affect your investment decisions and overall financial well-being.

3. Opportunity Cost

Money tied up in credit card debt could have been invested, potentially earning higher returns than the interest you're paying.

4. Credit Score Impact

High credit card balances can negatively affect your credit score, potentially limiting your financial options in the future.

While including credit card debt in your portfolio return calculations can provide a more complete picture, it's important to remember that these calculations are estimates. Actual financial performance may vary based on many factors beyond your control.

Example Calculation

Let's look at an example to illustrate how credit card debt affects portfolio return calculations.

Item	Initial Value	Final Value
Investments	$50,000	$60,000
Credit Card Debt	$10,000	$12,000
Net Worth	$40,000	$48,000

Calculating Portfolio Return Without Debt

If we only consider investments:

Investment Return = [($60,000 - $50,000) / $50,000] × 100% = 20%

Calculating Portfolio Return With Debt

If we include credit card debt:

Net Worth Return = [($48,000 - $40,000) / $40,000] × 100% = 20%

In this example, including credit card debt doesn't change the calculated return because the debt increased by the same percentage as the investments. However, in real-world scenarios, debt often increases at a higher rate than investments, leading to lower overall returns.

FAQ

Should I always include credit card debt in my portfolio return calculations?: No, only include credit card debt if it's a significant portion of your financial position and you want to track its impact on your overall financial performance.
How does credit card debt affect my portfolio return?: Credit card debt typically reduces your overall financial performance because interest rates are usually higher than investment returns. It also represents money that could have been invested instead.
What's the best way to include credit card debt in portfolio return calculations?: The net worth approach (subtracting debt from assets) is the most common method, but you can also use the total financial position approach or debt-to-equity ratio depending on your needs.
Can I exclude credit card debt if I'm using it for rewards?: Yes, if you're strategically using credit cards for rewards and not carrying high balances, you may choose to exclude the debt from your calculations.
How often should I include credit card debt in my portfolio return calculations?: Include it whenever you want to get a complete picture of your financial health, especially when considering major financial decisions or long-term planning.