Billfold — Invoicing, Estimates & Client Billing

Bill clients and get paid from one private app you own. Invoices, estimates, payments, expenses, tax and time — 13 integrated modules and 39+ tools in a single offline file. No accounts, no subscription, nothing leaves your device. A ~60-second wizard sets you up and loads a realistic sample workspace instantly.

All 13 modules

• Dashboard — revenue, outstanding, overdue and cash collected, live.
• Invoices — build, send and track invoices with tax and status.
• Estimates & Quotes — quotes that convert to invoices with acceptance status.
• Clients — a client book with billing history and lifetime value.
• Items & Services — a reusable catalog of items and rates.
• Payments — record payments, methods and deposits against invoices.
• Recurring & Retainers — recurring invoices and retainer schedules.
• Taxes & Reports — revenue, tax and CSV reports.
• NEW · Expenses & Bills — business expenses and vendor bills with category breakdown and unpaid totals.
• NEW · Sales Tax & Filing — GST/HST collected vs paid by period with net remittance and a filing checklist.
• NEW · Time & Hours — billable time tracking by client and project, ready to invoice.
• NEW · Projects & Retainers — project budgets, retainer balances and burn.
• NEW · Reminders & Statements — AR aging, overdue reminders and per-client statements.

Plus a companion Excel workbook (invoices, clients, payments, items — all formula-driven) and full guides. ✓ 100% offline & private · ✓ Lifetime access, no subscription · ✓ Mac · Windows · Linux · tablet.

Billfold is a billing-organization tool, not tax or accounting advice; verify before filing.