Invoices & payments
Manage customer accounts, overdue balances, interest charges, and payment reminders with clear formulas.
Invoice Late Fee Calculator
Estimate days late, overdue interest, flat fees, and revised invoice totals with state caution rules.
late fee = invoice amount × (monthly rate / 30) × days late
Accounts Receivable Aging Tracker
Track open invoices, calculate days overdue, see client concentration, and prioritize collections follow-ups.
aging buckets = group open invoices by days past due
Accounts Payable Aging Tracker
Track open vendor bills, group payables into aging buckets, prioritize payments, monitor cash due within 7 and 30 days, and export an AP aging report.
days past due = max(0, report date − due date); AP aging buckets = group open bills by days past due
Pro Forma Invoice Builder
Build a preliminary pro forma invoice with line items, discount, estimated tax, shipping, deposit terms, validity dates, audit flags, and TXT or CSV export.
grand total = max(0, subtotal − discount) + estimated tax + shipping; balance = grand total − deposit due