Function: EOMONTH()

📘 Definition:

The EOMONTH() function returns the last day of the month that is a specified number of months before or after a given start date.
“EOMONTH” means End Of Month — it’s very useful in payroll, interest calculation, monthly reporting, and EMI due tracking.

🧩 Syntax:  =EOMONTH(start_date, months)


• start_date → The beginning date

• months → Number of months before (-) or after (+) the start date

🧠 Example (Indian Perspective):

So, EOMONTH() helps get the last date of any future or past month, useful for closing reports or billing cycles.

🪜 Step-by-Step Explanation:

1. Suppose A2 = 10-Apr-2024, B2 = 0

2. Formula → =EOMONTH(A2, 0)

3. Excel calculates the end of the same month → 30-Apr-2024

4. If B2 = 1 → adds one month → 31-May-2024

💡 Tip:

You can use it together with +1 to get the first day of next month:

That gives 01-May-2024

🎯 Why It’s Useful:

• Automatically finds the month-end date for salaries, reports, and invoices.

• Avoids manual errors when months have 28, 30, or 31 days.

• Perfect for financial year-end or quarter-end calculations.

🧑‍💻 Project Task 1: Salary Processing Month-End Date

👉 Tasks:

1. Use =EOMONTH(B2, C2) to find the Salary Process Date

2. Format as DD-MMM-YYYY

3. Highlight those whose salary process date falls in June 2024

🧑‍💻 Project Task 2: EMI or Rent Due at Month-End

👉 Tasks:

1. Use =EOMONTH(B2, C2) to get EMI due date.

2. Use TEXT() to format like “dd-mmm-yyyy”.

3. Identify which customer’s EMI falls in September 2024.