An invoice is the output of your whole billing model — plans, usage, credits, proration. Floatless assembles it and lets a human check it before it counts.
Free during beta. No credit card required.
Floatless workspace
SaaS invoicing software generates customer invoices from recurring subscriptions — not from a timesheet or a one-off quote. It has to combine base plans with metered usage, apply credits and discounts correctly, keep draft invoices reviewable before they are issued, record payment state as invoices are paid or fail, and stay consistent with what the customer believes they bought. The invoice is the contract made visible; invoicing software is what keeps it defensible.
Invoices start as drafts assembled from subscription state. A person reviews, then posts — the step that catches wrong proration before a customer does.
Metered usage rates into invoice lines after review — included units respected, overage explicit.
Coupons, credits, and manual adjustments attach to the invoice with context, not as silent number edits.
Posted invoices are downloadable documents, viewable in the customer portal without an email thread.
Tax state is part of the billing record, so finance reviews it with the invoice instead of after it.
Sync invoice state into your ERP, spreadsheet, or data stack over the public API.
Positioning
| Option | Works well for | Floatless position |
|---|---|---|
| Word templates and PDFs | The first invoices | No state, no payments, no audit trail |
| Payment processor invoices | Collecting against the invoice | Limited review, credits, and usage modeling |
| Accounting software | Bookkeeping and ledgers | Built for finance entries, not billing operations |
| Floatless | Small SaaS teams with real billing models | Invoices generated from live subscription and usage state, reviewed by a human |
Create a free beta workspace and test the workflow with your own plans, customers, and usage.
FAQ
Yes. Posted invoices produce downloadable documents, and invoice state is visible to customers through the portal.
That is the designed workflow: drafts are generated for review, adjustments are applied with context, then the invoice is posted.
Usage events rate against subscription items; included units and overage appear as reviewable lines before the invoice is posted.
Tax context is carried on billing records and in invoice review. For full tax determination, connect your tax provider through the API workflow.
Yes. Invoice state and documents are available over the public API and webhooks for downstream sync.