Add Business Days to Date in Excel

What this does

WORKDAY returns the date a given number of working days from a start date, skipping Saturdays, Sundays and any holidays you list. It is the counterpart to NETWORKDAYS, which counts the days between two dates rather than projecting forward. The holidays argument is what makes it trustworthy in practice: without a holiday range it will happily land a deadline on Christmas Day. Its sibling WORKDAY.INTL takes a weekend-pattern argument, which matters for regions where the weekend is not Saturday and Sunday. Most people learn this as a sequence of clicks and forget it by next week; learning it as a pattern instead is what lets you apply it to the next, slightly different version of the problem without starting from scratch. That is the difference this page is trying to make. Treat “add business days to date in excel” as a small repeatable workflow rather than a one-off click you hope to remember next time. Use a small test block before the live file, so any surprise in the affected cells shows up while it is still harmless. When a formula is involved, keep the inputs labelled beside it, reference cells instead of typing values, and apply number formatting only after the result checks out. That turns a layout choice that keeps the sheet readable and sortable into a method you can reuse, explain, and defend when the workbook leaves your screen.

A worked example

A ten-working-day SLA from a ticket date, with public holidays listed in H2:H20: =WORKDAY(A2, 10, $H$2:$H$20). Counting backwards to find when work must start: =WORKDAY(deadline, -5, $H$2:$H$20). A Friday-Saturday weekend: =WORKDAY.INTL(A2, 10, 7, $H$2:$H$20). WORKDAY turns an SLA or lead time into a real calendar date, which is the number a customer actually gets told. Check the referenced cells, argument order and result type in your workbook. Start with the worked example before changing an input, then compare the changed result with the calculation you expected. An error value or a result of a different type is a reason to inspect the inputs and arguments.

In Google Sheets

Google Sheets support for this task has not been verified. Check the function, arguments and workflow in the target product before transferring the example. Matching formula notation does not establish identical behaviour. Nothing on this page is behind a login or a download: the exact answer is at the top, and the detail below it is there for when you need it. That is the whole promise here — the answer first, and just enough context to make it stick. For “add business days to date in excel”, keep the input cells and the result visible while you check the formula in Excel. Follow the worked example and change one input at a time. The steps explain the workbook calculation; this page does not run a live calculator for that task.

Common mistakes

• Omitting the holidays range, which lets a deadline land on a public holiday.
• Forgetting to anchor the holiday range before filling down, so later rows check a shrinking list.
• Expecting the start date to count as day one; it does not — counting begins the following working day.

Frequently asked questions