US business-day due dates

Use this when your terms count business days, or say a payment due on a weekend or holiday moves to the next business day. It skips Saturdays, Sundays and US federal holidays.

Calculate the due date

Due dateWednesday, November 18, 2026
Terms
Net 30
Calendar days from the invoice date
30

Next step: make the invoice

Opens the free invoice builder with issue date 2026-10-19, due date 2026-11-18 and Net 30 terms filled in. No signup, no card.

Put this on an invoice
Business days and holidays

Worked example

An invoice dated 27 October 2026 on Net 30 is due Thursday 26 November 2026, which is Thanksgiving. Rolled to the next business day it is due Friday 27 November. Ten business days from 18 December 2026 is 5 January 2027, after Christmas Day and New Year's Day.

What the list covers

The list is the federal holiday schedule from the Office of Personnel Management, including the observed dates it lists (Independence Day 2026 is observed on Friday 3 July). States and banks can close on other days too. For federal contracts, 5 CFR 1315.4(h) lets a payment due on a weekend or federal holiday be made the next business day without late-payment interest.

  • Federal holidays that fall on a Saturday are observed on the Friday before, and Sunday holidays on the Monday after, per OPM.
  • New Year's Day 2028 falls on a Saturday, so OPM lists Friday 31 December 2027 as the observed holiday.

2026 holidays: United States

DateHolidayNote
Thursday, January 1, 2026New Year's Day-
Monday, January 19, 2026Birthday of Martin Luther King, Jr.-
Monday, February 16, 2026Washington's Birthday-
Monday, May 25, 2026Memorial Day-
Friday, June 19, 2026Juneteenth National Independence Day-
Friday, July 3, 2026Independence Day (observed)July 4 is a Saturday, so OPM lists Friday July 3
Monday, September 7, 2026Labor Day-
Monday, October 12, 2026Columbus Day-
Wednesday, November 11, 2026Veterans Day-
Thursday, November 26, 2026Thanksgiving Day-
Friday, December 25, 2026Christmas Day-

2027 holidays: United States

DateHolidayNote
Friday, January 1, 2027New Year's Day-
Monday, January 18, 2027Birthday of Martin Luther King, Jr.-
Monday, February 15, 2027Washington's Birthday-
Monday, May 31, 2027Memorial Day-
Friday, June 18, 2027Juneteenth (observed)June 19 is a Saturday
Monday, July 5, 2027Independence Day (observed)July 4 is a Sunday
Monday, September 6, 2027Labor Day-
Monday, October 11, 2027Columbus Day-
Thursday, November 11, 2027Veterans Day-
Thursday, November 25, 2027Thanksgiving Day-
Friday, December 24, 2027Christmas Day (observed)December 25 is a Saturday
Friday, December 31, 2027New Year's Day 2028 (observed)January 1, 2028 is a Saturday; OPM lists it in its 2028 schedule

FAQ

Frequently asked questions

Which holidays count as US business-day holidays?

This calculator uses the eleven federal holidays OPM publishes each year. Your bank or your client may close on others.

What happens when a federal contract payment is due on a holiday?

Under 5 CFR 1315.4(h), it may be made on the following business day without late-payment interest.

How many business days are in Net 30?

Net 30 is calendar days. If your contract says 30 business days, that is about six weeks; choose business days above to get the exact date.