How to Get the Beginning of Month Date in Excel Using a Formula

Learn the Excel formula to find the first day of any month using EOMONTH and simple date math.

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Yes, there is a beginning of month formula in Excel. Use the EOMONTH function combined with a small tweak to return the first day of the month. Type `=EOMONTH(reference_date, -1) + 1`, where `reference_date` is a cell containing any date within the month you're interested in. This formula takes the end of the previous month (EOMONTH(reference_date, -1)) and adds one day to reach the first day of the desired month. It's a powerful and straightforward way to calculate the start of a month dynamically.

FAQs & Answers

  1. What function calculates the beginning of a month in Excel? The EOMONTH function combined with adding one day is used to calculate the first day of a given month in Excel.
  2. How do I find the first day of the current month in Excel? You can use the formula =EOMONTH(TODAY(), -1) + 1 to get the first day of the current month.
  3. Can EOMONTH return dates before the given date? Yes, by using a negative number for the months argument, EOMONTH returns the end of a previous month.

Watch More

For more Excel date calculation tips, check out our tutorials on end of month formulas, date difference calculations, and dynamic calendar creation to boost your spreadsheet skills.

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