Observed arrival · 2026-11-15
Retard Public’s late-payment calculator
A French-language tool for suppliers to public buyers to identify late-paying buyers and calculate interest and recovery fees on overdue invoices.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Suppliers waiting on payment from French public buyers
- Worth noticing
- Its worked example uses a 50-day hospital deadline and separates interest from the €40 per-invoice recovery fee.
Field notes
Users can start with a SIRET/SIREN lookup, then provide a CSV containing at least the invoice amount, receipt date, and payment date. The page says calculations run locally in the browser and provides buyer-level details for export or printing; it also lists deadlines by buyer category and cites public data sources. Its opening rate (10.40%) differs from the worked example’s 10.15%, so the applicable rate merits checking.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue