When is my Net 30 invoice due?

30 days from invoice date (e.g., Jan 1 → Jan 31); some use end-of-month terms.

What does Net 60 mean?

Payment is due 60 days from invoice date—common for larger B2B buys.

Expect late fees, strained vendor ties, loss of discounts, possible service suspension.

Add term days to invoice date; some vendors use EOM rules—check your terms.

Never miss due dates: calculate invoice deadlines for Net terms.

Contract start date *

The date your contract begins

Contract duration *

Length of your contract (in days, weeks, months, quarters, or years)

Contract end date

The exact date your contract term expires based on start date and duration

Time remaining

How many days are left until your contract ends so you can plan ahead

Renewal window

Whether you are approaching a renewal period that may require action

Expiration status

Whether the contract has already ended or is still active

Frequently asked questions about payment terms calculator

Templates, tools, and calculators related to this topic.

Calculate when your contract ends based on start date and duration. Free tool for contract management.