Priority #5 B2B Micro-SaaS Utility

B2B Overdue Invoice Statutory Interest & Demand Letter Generator (2026)

Stop chasing unpaid contractor and freelance invoices manually. Calculate accrued statutory interest and generate a court-ready 3-stage escalation sequence (Day 7 Reminder, Day 21 Formal Late Notice, Day 45 Final Pre-Lien/Collection Demand) in 10 seconds.

Overdue Invoice & Escalation Parameters

Your Business / Contractor Name

Client / Customer Company Name

Invoice Number

Original Invoice Amount ($)

Days Past Due

Annual Late Interest Rate (%) Standard B2B contract rate: 1.5%/mo (18% APR) or statutory 10%–12%.

Escalation Stage & Tone

Stage 1: Day 7 Polite Accounting Reminder Stage 2: Day 21 Formal Interest Accrual Notice Stage 3: Final Pre-Lien / Collection Demand

Total Demand Balance Due (Principal + Interest + Admin Fee)

$0.00

Includes $0.00 accrued interest + $0.00 late fee

Unlock Pro Automated 3-Step Sequence & Excel Tracker ($19/mo) →