Free tools

Calculators for running a ditch company

Two things almost every secretary ends up doing by hand on a legal pad or in a home-brew spreadsheet. We built free, no-sign-up versions that do the arithmetic exactly, so you don't have to double-check it yourself.

Runs entirely in your browser — nothing you enter is ever sent anywhere.

• Assessment Calculator

  Figure a per-share assessment rate from a target total (or the other way around), handle more than one share class, and — if you paste in your shareholder list — generate a printable billing roll and one formal notice per shareholder.

• Delinquency Interest Calculator

  Enter a principal, due date, and rate, and see exactly how much interest a delinquent assessment has accrued as of any date — simple or compounding, with a grace period before interest starts.