EDATE and EOMONTH in Google Sheets - Real Business Scenario

Scenario Mode

👤 Your Role: You are a financial analyst at a small business.

📋 Request: Your manager wants a report showing the due dates for monthly invoices and the last day of each invoice month for the next 6 months.

📊 Data: You have a list of invoice start dates in a column.

🎯 Deliverable: Create a table that shows for each invoice start date: the due date exactly 3 months later and the last day of that due month.

Sample Data

Invoice ID	Start Date
INV001	2024-01-15
INV002	2024-02-10
INV003	2024-03-05
INV004	2024-04-20
INV005	2024-05-25
INV006	2024-06-30

1

Step 1: Add a new column named 'Due Date (3 months later)' next to the 'Start Date' column.

In cell C2, enter the formula: =EDATE(B2, 3)

Expected Result

For INV001, the due date will be 2024-04-15.

2

Step 2: Copy the formula in C2 down to all rows to calculate due dates for all invoices.

Drag the fill handle from C2 down to C7.

Expected Result

Due dates for all invoices are calculated 3 months after their start dates.

3

Step 3: Add another column named 'End of Due Month' next to the 'Due Date (3 months later)' column.

In cell D2, enter the formula: =EOMONTH(C2, 0)

Expected Result

For INV001, the end of due month will be 2024-04-30.

4

Step 4: Copy the formula in D2 down to all rows to find the last day of each due month.

Drag the fill handle from D2 down to D7.

Expected Result

The last day of the due month is shown for all invoices.

Final Result

Invoice ID | Start Date | Due Date (3 months later) | End of Due Month
-----------|------------|--------------------------|-----------------
INV001     | 2024-01-15 | 2024-04-15               | 2024-04-30      
INV002     | 2024-02-10 | 2024-05-10               | 2024-05-31      
INV003     | 2024-03-05 | 2024-06-05               | 2024-06-30      
INV004     | 2024-04-20 | 2024-07-20               | 2024-07-31      
INV005     | 2024-05-25 | 2024-08-25               | 2024-08-31      
INV006     | 2024-06-30 | 2024-09-30               | 2024-09-30      

✓The due date is exactly 3 months after the invoice start date.

✓The end of due month shows the last calendar day of the month when payment is due.

✓This helps the manager track invoice deadlines and month-end closing dates.

Bonus Challenge

Create a new column that shows the number of days between the start date and the end of the due month.

Show Hint

Use the formula =D2 - B2 to subtract the start date from the end of due month.

Practice

1. What does the EDATE function do in Google Sheets?

easy

A. Returns a date a specified number of months before or after a start date

B. Returns the last day of the current month

C. Calculates the number of days between two dates

D. Returns the day of the week for a given date

Solution

1. Step 1: Understand the purpose of EDATE

   The EDATE function is designed to add or subtract whole months from a given start date.

2. Step 2: Compare with other date functions

   Unlike functions that return days or weekdays, EDATE specifically works with months to find a new date.

3. Final Answer:

   Returns a date a specified number of months before or after a start date -> Option A

4. Quick Check:

   EDATE = date ± months [OK]

Hint: EDATE shifts dates by months, not days [OK]

Common Mistakes:

• Confusing EDATE with DAY or WEEKDAY functions
• Thinking EDATE returns end of month
• Using EDATE to add days instead of months

2. Which of the following is the correct syntax for the EOMONTH function?

easy

A. EOMONTH(date, days)

B. EOMONTH(months, start_date)

C. EOMONTH(start_date, months)

D. EOMONTH(start_date)

Solution

1. Step 1: Recall EOMONTH syntax

   EOMONTH requires two arguments: the start date and the number of months to move forward or backward.

2. Step 2: Check argument order and count

   The first argument must be the start date, the second is the months offset. The other options have wrong order or missing arguments.

3. Final Answer:

   EOMONTH(start_date, months) -> Option C

4. Quick Check:

   EOMONTH(date, months) correct syntax [OK]

Hint: Start date first, months second in EOMONTH [OK]

Common Mistakes:

• Swapping the order of arguments
• Omitting the months argument
• Using days instead of months

3. Given cell A1 contains the date 2024-01-15, what is the result of =EDATE(A1, 3)?

medium

A. 2024-04-30

B. 2024-04-15

C. 2024-03-31

D. 2024-01-18

Solution

1. Step 1: Understand EDATE with positive months

   EDATE adds the number of months to the start date, keeping the day number if possible.

2. Step 2: Calculate 3 months after January 15, 2024

   Adding 3 months to January 15, 2024 results in April 15, 2024.

3. Final Answer:

   2024-04-15 -> Option B

4. Quick Check:

   EDATE(2024-01-15, 3) = 2024-04-15 [OK]

Hint: EDATE keeps day, shifts month by given number [OK]

Common Mistakes:

• Confusing EDATE with EOMONTH output
• Adding days instead of months
• Assuming end of month date

4. You wrote =EOMONTH(A1, 1) but it returns an error. Cell A1 contains the text "March 10, 2024" (not a date). What is the fix?

medium

A. Convert A1 to a valid date format before using EOMONTH

B. Change formula to =EOMONTH("March 10, 2024", 1)

C. Replace EOMONTH with EDATE

D. Use =EOMONTH(A1, "1") with months as text

Solution

1. Step 1: Identify cause of error

   EOMONTH requires a valid date value, but A1 contains text, not a date.

2. Step 2: Fix by converting text to date

   Convert or re-enter A1 as a proper date so EOMONTH can process it correctly.

3. Final Answer:

   Convert A1 to a valid date format before using EOMONTH -> Option A

4. Quick Check:

   EOMONTH needs date input, not text [OK]

Hint: Ensure date cells are real dates, not text [OK]

Common Mistakes:

• Passing text strings instead of dates
• Using quotes around month number
• Switching to wrong function without fixing input

5. You want to find the last day of the month 2 months before the date in cell B2 (which is 2024-05-20). Which formula gives the correct result?

hard

A. =EDATE(B2, 2)

B. =EDATE(B2, -2)

C. =EOMONTH(B2, 2)

D. =EOMONTH(B2, -2)

Solution

1. Step 1: Understand the requirement

   You want the last day of the month, 2 months before May 20, 2024.

2. Step 2: Choose correct function and argument

   EOMONTH returns the last day of a month offset by months. Negative 2 moves back 2 months from May 2024 to March 2024.

3. Step 3: Verify other options

   EDATE returns the same day number, not the last day. Positive 2 moves forward, not backward.

4. Final Answer:

   =EOMONTH(B2, -2) -> Option D

5. Quick Check:

   EOMONTH with negative months finds past month end [OK]

Hint: Use EOMONTH with negative months for past month ends [OK]

Common Mistakes:

• Using EDATE instead of EOMONTH for month-end
• Using positive months to go backward
• Confusing last day with same day number