Free tools to get paid faster.
Calculators and templates for small businesses that invoice: late fees, interest on overdue invoices, payment reminders, mechanics lien deadlines, DSO and more. Free, no sign-up, and you can email yourself any result.
Late fee calculator
Work out the late fee on an overdue invoice: flat or percentage, one-time or monthly, with a grace period.
Overdue invoice interest calculator
Calculate the interest owed on a late invoice by annual or monthly rate and days late.
Payment reminder generator
Write a friendly, firm or final payment reminder email and text message in seconds.
Mechanics lien deadline calculator
Find your preliminary notice and mechanics lien filing deadlines by state for private construction projects.
How much are late payments costing you?
See what late-paying clients cost your business a year: tied-up cash, your time and bad debt.
DSO calculator (days sales outstanding)
Calculate your days sales outstanding and how much cash you'd free up by getting paid on terms.
Invoice due date calculator
Turn payment terms like Net 30, EOM or 2/10 Net 30 into an exact due date.
Collection agency fee calculator
See how much a collection agency keeps from a recovered debt, and what you'd keep instead.
Rather not chase anyone at all?
Casey sends your invoices and follows up with every client until you're paid, by email, text, WhatsApp or phone. Free when clients pay on time; $5 per invoice only if Casey has to chase it. See how it works.