Open Data

Machine-readable datasets published by MyInvoiceTemplate, licensed CC BY 4.0 (free to use with attribution). Methodology: how we verify this data. Every verification pass and correction is logged in the data changelog.

US state late-payment interest (50 states + DC)

Default statutory rate when a B2B contract is silent + the max written-contract rate, per jurisdiction, each row citing the controlling statute. 51 of 51 rows carry an individual re-verification date and 51 quote the operative statute text verbatim. Last verified: 2026-08-19.

• late-payment-interest-by-state-2026.csv
• late-payment-interest-by-state-2026.json
• late-fee-ranked-2026.txt — plain-text ranking: interest owed on a $10,000 invoice 90 days late, by state

Human-readable table with per-state anchors: late fee calculator & state table

VAT / GST standard rates by country (42 jurisdictions)

Standard and reduced rates verified against the national tax authority or European Commission source cited per row. Last verified: 2026-06-12.

• vat-rates-by-country-2026.csv
• vat-rates-by-country-2026.json

Human-readable table: VAT & GST invoicing guide

E-invoicing mandates by jurisdiction (34 entries)

Status, scope and verified phase dates of structured e-invoicing mandates (plus the EU frameworks: ViDA, EN 16931, Peppol), each entry citing and quoting the official source. Last verified: 2026-08-20.

• e-invoicing-mandates-2026.csv
• e-invoicing-mandates-2026.json

Human-readable tracker: e-invoicing mandates tracker