Business-Day & Due-Date Calculator

Invoice due dates (Net, EOM, early-pay discount, business-day terms), business-day math and holiday-aware counts. Free, no signup.

Need this in your software? Get a free API key (1,000 requests a month, no card).

Disclaimer: Results are computed from open-source holiday data and general conventions and may be incomplete or wrong (for example, regional, ad-hoc or newly declared holidays). They are not legal or financial advice. Verify any contractual, statutory or legally binding deadline against an official source before relying on it. API spec · Pricing & API keys