ChaseKit Invoice Chasing

Getting paid late is the default. Chasing it is manual, awkward, and inconsistent.

Send your agent in too hard and it torches client relationships. Too soft and invoices age quietly into write-offs. ChaseKit Invoice Chasing is the operating skill for ChaseKit, the open-source chasing layer that works out exactly what each overdue invoice is owed, stages the pressure properly, and never sends a word until a human has approved it.

What your agent learns to do:

• Read invoices from a plain CSV export (any invoicing tool or spreadsheet can produce one) or from Invoice Ninja, and detect what is actually overdue, skipping anything not yet due or already paid.
• Calculate the statutory late-payment interest and fixed fee for each invoice: Bank of England base rate plus 8 percent and a £40, £70, or £100 fee for the UK under the Late Payment of Commercial Debts (Interest) Act 1998; reference rate plus 8 points and a minimum €40 for the EU under Directive 2011/7/EU.
• Work a four-stage tone ladder by age: friendly (days 1 to 13), firm (14 to 27), final notice (28 to 41), escalation (42 plus), relationship-preserving at every stage, with exact amounts and the legal basis named from stage 2 on.
• Present every rendered reminder to you for review, and send only the batch you approve. A chase log records every send, so no client is ever chased twice for the same stage.
• Report what is outstanding by age band and by client, and what was collected since the last run.
• Handle the US honestly: there is no federal statutory rate, so US invoices show $0 interest unless you configure your own contracted terms. Nothing is invented on your behalf.

Approval is the point. Planning and dry runs send nothing, ever. Real sending exists only in approve mode, where the full batch is listed and nothing leaves until you say yes.

Five workflows included: a zero-credential demo that proves the setup in about five minutes, the first real chase plan, the weekly chasing routine, collected-and-outstanding reporting, and handling client replies (already paid, disputed, promised dates, hardship). The full tone ladder guide, the UK and EU interest rules with worked numbers, and the complete source and setup reference are in the reference files.

Requirements: ChaseKit itself, free and MIT licensed at github.com/techaurah/chasekit (this skill is the operating playbook for it). Python 3.11 or newer, zero runtime dependencies. The demo and dry runs need no credentials. Sending needs your own SMTP mailbox; Invoice Ninja needs your own instance and API token. ChaseKit creates no invoices, takes no payments, and does no accounting: your invoicing stays exactly where it is.