DATE / Small Business Owner

Calculate Invoice Due Date (Net 30)

I need to automatically generate a due date that is exactly 30 days after the invoice issue date.

formula.xlsx
=A2+30

How it works: Excel stores dates as serial numbers, where January 1, 1900, is represented as 1. When you add an integer (like 30) to a date in Excel, you are directly adding that many days to the date's serial number. Therefore, `=A2+30` simply calculates the date that is exactly 30 days after the date in cell A2, effectively determining the 'Net 30' due date.

Data Setup

Invoice Issue Date Invoice Due Date
2023-10-26
2023-11-01
2023-11-15

Step-by-Step Guide

1

Enter your invoice issue dates in a column (e.g., Column A, starting from cell A2).

2

In the cell where you want the due date to appear (e.g., B2), type the formula: `=A2+30`.

3

Press Enter to see the calculated due date.

4

Drag the fill handle (the small square at the bottom-right of cell B2) down to apply the formula to other invoice issue dates.

5

Ensure that both the 'Invoice Issue Date' column and the 'Invoice Due Date' column are formatted as 'Date' to display the results correctly.

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