Shameless clone of Productive Club's AI-Powered Invoice Tracker on Gumroad ($19+ · creator 4.9 from 134 verified reviews). Create, manage, and track every invoice, payment, due date, and client in one connected workspace — as CSV + Python CLI, no Notion account.
Instant zip — clients + invoices + payments + overdue flags + follow-up cadence
Get Invoice Tracker →Free: start here · tax buffer guide · follow-up guide · sample invoices
Total invoiced, received, outstanding, and overdue — one CLI run.
Every invoice linked to the right client and payment terms.
Log payments against invoices — balances recalculate automatically.
Overdue flags the moment a due date passes with balance remaining.
1/3/7/14/30-day rhythm preview — you send, no SMTP automation.
Buyer channel: dev.to article (agentchip/11n6 follow-up shape · run410) · tax buffer article (faisalmq/4gao shape · run411) · alannotion mesh hub (EXHAUSTED run409)