Free Invoicing Software for IT Service Companies

Create professional estimates, send for client approval, and convert to invoices with one click -- preserving every line item.

Auto-generate invoices on schedule with Stripe subscription sync, next-due tracking, and generation history.

Issue credit notes linked to invoices, track customer credit balances, and manage retainer deposits with auto-apply.

Auto-calculate late fees (flat or %) after configurable grace periods and send automated payment reminders.

Pull Time Tracker entries by project and date range, group by client, and generate invoices with billable rates in one click.

Split invoices into installment schedules with auto-generated reminders and Stripe auto-charge per payment.

Tax collected summaries by period and jurisdiction, full multi-currency support with exchange rate entry and base conversion.

Recognize revenue as work is performed with percentage completion tracking and ASC 606 compliant deferred revenue.

Say 'Invoice John's March project work' and AI queries your time entries, generates grouped line items, and prepares a draft.

Pay vendor bills with approval workflows, and require manager sign-off on invoices over configurable thresholds.