Invoice Finance Explained - for small business

TL;DR: Invoice finance lets a business access cash tied up in unpaid invoices without waiting for customers to pay. It solves a timing gap between completing work and getting paid, not a profitability problem. This guide explains how it works, when it fits, when it doesn't, and what it costs.

What is invoice finance?

Invoice finance (sometimes called invoice funding) lets a business unlock cash from invoices it has already issued. Instead of waiting 30, 45, or 60 days for payment, you receive an advance against the invoice value and settle it when the customer pays. It turns money you're owed into money you can use now.

How invoice finance works (step by step)

1. You issue an invoice for completed work or delivered goods.
2. You choose the invoice (or invoices) you want to fund.
3. The provider reviews the invoice, validity, the customer's payment behaviour, and business context.
4. You receive an advance against the invoice value, paid upfront.
5. Your customer pays on the normal due date.
6. The funding settles once the invoice is paid.

The core idea: invoice finance follows your cash cycle. You use it to bridge gaps created by payment terms, not to take on funding you don't need.

"Invoice finance isn't about borrowing, it's about timing. The business has already done the work and earned the money; we just close the gap between earning it and being able to use it. That's a fundamentally different thing from taking on debt."

Matt Peacey, Founder & CEO, FundTap

When invoice finance makes sense

It's usually a good fit when the business is viable but cash timing is tight:

• You're growing and costs land before payments (hiring, inventory, mobilising a job)
• Your customers pay on long terms (30–60+ days) while you cover expenses upfront
• A few late payments create stress even though you're profitable on paper
• You want flexibility rather than a long-term loan
• You're protecting momentum, avoiding delays to jobs, stock, or payroll

A simple example: you've invoiced $25,000 due in 30 days, but wages and suppliers are due this week. Invoice finance smooths the gap so you keep delivering.

When invoice finance does not make sense

• You don't have invoices yet (you need funding before you can deliver)
• The problem is long-term profitability, not timing
• Invoices are frequently disputed or customers are unreliable payers
• You need long-term capital (equipment, multi-year expansion), not a short bridge

Rule of thumb: if the cash issue won't resolve when the invoice is paid, invoice finance may not be the right tool.

Invoice finance vs factoring

"Invoice finance" and "factoring" are often used interchangeably, but they're not the same. Invoice finance is the umbrella term, funding linked to your invoices. Factoring is one structure within it, where the provider buys the invoice and often takes over collections, which usually means your customer is notified. Selective invoice finance (how FundTap works) lets you fund one invoice at a time, with no debtor notification. (See the full comparison in our invoice finance vs factoring guide.)

What it costs

With FundTap you pay a single fee on the invoices you choose to fund, from 4%, with no monthly fees, setup fees, or minimum volumes. You only pay when you fund an invoice. The selective model keeps risk low, with a loss rate of 0.71% (FundTap, BNZ presentation 2025); the average advance is about $32K over roughly 33 days, and the median time from sign-up to first fund is 3 days (FundTap data, 2026).

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Frequently asked questions

What is invoice finance?

A way to access cash from invoices you've already issued, you receive an advance against the invoice value and settle when your customer pays, instead of waiting 30–60 days.

Is invoice finance a loan?

No, it's not a traditional loan. You're accessing money you've already earned through an issued invoice, not taking on new long-term debt against your business.

How much does invoice finance cost?

With FundTap, a single fee from 4% on the invoices you choose to fund, with no monthly fees, setup fees, or minimum volumes.

When should I use invoice finance?

When the business is viable but cash timing is tight, customers on long terms, growth costs landing before payment, or late payments creating short-term stress.

When is invoice finance the wrong tool?

When the issue is long-term profitability rather than timing, when you don't yet have invoices to fund, or when invoices are frequently disputed.

How fast can I access funds?

Funds arrive in hours once you're set up; the median time from sign-up to first fund is 3 days.