Invoice Factoring: How It Works, Costs, and When to Use It

Invoice factoring is a way to get paid now for invoices your customers will not pay for weeks. You sell an unpaid invoice to a factoring company, it wires you most of the value within a day or two, and it collects the full amount from your customer later. When the customer pays, you get the rest back, minus the factoring company's fee.

That is the whole idea. It solves one specific problem: you have finished the work, the money is owed, but you cannot afford to wait 30, 60, or 90 days to see it. This guide covers how factoring actually works, what it costs with a real worked example, and how to tell whether it is the right move or an expensive mistake.

If you just want the broad concept and how factoring compares to discounting, start with our plain-English guide to invoice financing. If you already know you want to factor and need to pick a provider, jump to how invoice factoring companies work and how to choose one. This post is the middle piece: the mechanics, the math, and the decision.

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What invoice factoring is

Invoice factoring is the sale of your unpaid invoices, your accounts receivable, to a third party called a factor at a discount. You are not borrowing against the invoices; you are selling them outright for less than face value. The gap between face value and what you receive is the factor's profit.

This is the key thing that makes factoring different from a loan: it is a sale of an asset you already own, not new debt. There is no interest rate, no monthly loan payment, and nothing added to your balance sheet as a liability. Because of that, approval hinges on whether your customers are likely to pay, not on your own credit score. A brand-new business with a blue-chip client can often factor when it could not get a bank loan.

Factoring is most common in industries where you deliver first and get paid on long terms: trucking and freight, staffing agencies, construction and trades, manufacturing, and wholesale. If you get paid in cash or by card at the point of sale, you do not need it.

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How invoice factoring works, step by step

The process is the same at almost every factoring company:

1. You do the work and send a normal invoice. Your customer gets a standard invoice with standard terms, say Net 60. (New to that? See what Net 30 means on an invoice — Net 60 works the same way, just twice the days.)
2. You sell the invoice to the factor. You submit the invoice plus backup paperwork, like a signed delivery receipt or timesheet, that proves the work is done.
3. The factor verifies and advances you cash. It confirms the invoice is real and your customer is creditworthy, then wires you an advance — usually 80% to 95% of the invoice value — often within 24 to 48 hours.
4. The factor collects from your customer. In most factoring deals, your customer now pays the factor directly. The factor handles the follow-up and reminders.
5. The factor releases the rest, minus its fee. Once your customer pays in full, you get the held-back portion, called the reserve, back — less the factoring fee.

Three words decide your cost, so it is worth pinning them down:

• Advance rate — the share you get upfront (for example, 90%).
• Reserve — the share held back until your customer pays (for example, 10%).
• Factoring fee, also called the discount rate — what the factor keeps for the service.

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A worked example: what factoring really costs

Say you run a small freight company. You deliver a load and invoice a reliable shipper for $12,000 on Net 30 terms. You need fuel and payroll money now, so you factor the invoice.

• Advance rate: 90% → the factor wires you $10,800 the next day.
• Reserve: 10% → $1,200 is held back.
• Factoring fee: 3% per 30 days. Your customer pays right on Net 30, so the fee is 3% of $12,000 = $360.

When the shipper pays the full $12,000, the factor keeps its $360 fee and releases the rest of your reserve. You walk away with $11,640 total and you had the bulk of it a month early.

Now watch what happens when the customer is slow. Same invoice, same 3% monthly rate, but the shipper takes 90 days to pay:

• Fee = 3% × 3 months = 9% of $12,000 = $1,080.
• You end up with $10,920.

That is triple the cost, from the exact same rate, purely because the money was outstanding three times as long. This is the single most important cost lesson in factoring:

The fee is usually charged per 30 days, so your real cost depends on how long your customer takes to pay, not just the headline rate. Always compare the total fee over your actual payment cycle. Most fees land in the 1% to 5% per month range, and on top of them, watch for setup fees, per-invoice fees, wire and ACH fees, credit-check fees per customer, and monthly minimums.

If factoring fees do apply, they are a cost of doing business, and ordinary, necessary business expenses are generally deductible — see the IRS guidance on deducting business expenses. Confirm your own situation with a qualified accountant.

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Recourse vs non-recourse: who eats the loss

Factoring comes in two flavors, and the difference changes both your risk and your price.

Recourse factoring means you stay responsible if your customer never pays. If an invoice goes bad, you buy it back or swap in another invoice of equal value. It is cheaper because the factor keeps almost no credit risk, and most factoring in the US is recourse.

Non-recourse factoring means the factor absorbs the loss if your customer defaults for a covered reason. It costs more, and here is the catch most people miss: non-recourse usually only covers a customer's confirmed insolvency or bankruptcy — not a customer who simply pays late, disputes the work, or disappears. Read the definition of a "covered default" in the contract before you pay extra for protection that may not apply.

We break the recourse decision down further in our guide to choosing an invoice factoring company.

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Factoring vs financing vs discounting

These terms get tangled, so here is the clean version. Invoice financing is the umbrella: any way of turning unpaid invoices into cash early. Under that umbrella:

So all factoring is invoice financing, but not all invoice financing is factoring. If keeping your customer relationships private matters to you, discounting may fit better; if chasing payments is a headache you would happily hand off, factoring does that for you.

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When to use invoice factoring (and when not to)

Factoring is worth it when:

• You have real cash tied up in invoices with long terms (Net 30 to Net 90) and bills that will not wait — payroll, fuel, rent, suppliers.
• Your growth is capped by cash flow, not demand. You could take the next job if you had the working capital.
• A bank has turned you down, but your customers are large and creditworthy.
• The cost of waiting — a missed payroll, a stalled project, or a pricier emergency loan — is clearly higher than the factoring fee.

Factoring is usually the wrong tool when:

• You get paid on delivery, in cash, or by card. There is nothing to factor.
• You can comfortably wait out your payment terms. Paying 3% to 9% to speed up money you did not urgently need is just lost margin.
• Your margins are too thin to absorb the fee. If a 5% fee wipes out your profit on the job, factoring turns a good job into a break-even one.
• Your customers are small, slow, or shaky. Factors price that risk in, and the fees climb fast.

A useful gut check: factoring is a cash-flow tool, not a profit tool. It costs you money to buy time. If buying that time earns or saves you more than the fee, it is a smart trade. If not, it is expensive.

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Common mistakes to avoid

• Judging by the headline rate alone. A 1.5% rate on invoices that take 90 days to pay can cost more than a 3% rate on invoices that pay in 30. Compare the total fee over your real payment cycle.
• Ignoring the extra fees. Setup, per-invoice, wire, credit-check, and monthly-minimum fees can push your effective cost well above the quoted rate. Ask for the full fee schedule in writing.
• Paying for non-recourse without reading the fine print. If it only covers bankruptcy and your risk is late-paying customers, you are paying for protection you will rarely use.
• Locking into a long contract. Multi-year deals with volume minimums and steep early-exit penalties trap you if the relationship sours. Prefer month-to-month or short terms.
• Factoring messy invoices. Factors verify every invoice before they buy it. Missing details, wrong dates, or vague line items slow down or kill your funding.

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Before you factor: send invoices a factor will accept

A factoring company checks each invoice before it pays you, so clean, complete invoices get funded faster. Clear customer details, dates, terms, and itemized line items are what a factor wants to see. You can create a professional invoice free with our generator so your paperwork is never the thing holding up your cash, and browse our invoice templates if you prefer to start from a layout.

Staying on top of your own receivables helps too — our guides on outstanding invoices and how to ask for payment keep your ledger in the shape a factor likes. And if you would rather compare factoring against traditional debt like a line of credit or an SBA-backed loan first, the SBA's loan program overview is a neutral place to start.

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The short version

Invoice factoring turns unpaid invoices into cash today by selling them to a factor at a discount. It is a sale, not a loan, so it leans on your customers' credit and adds no debt. Expect a fee of roughly 1% to 5% per 30 days, and remember the real cost grows the longer your customer takes to pay. Use it when the cost of waiting is higher than the fee; skip it when you get paid quickly or your margins cannot spare it. Then send clean invoices, compare total cost over your real payment cycle, and read the contract before you sign.

This post is general information, not financial, tax, or legal advice. Fees, rates, and terms vary by company and change over time — confirm current details with the provider and a qualified advisor.

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Frequently Asked Questions

What is invoice factoring in simple terms?

Invoice factoring is selling your unpaid invoices to a factoring company for cash now. You get about 80% to 95% of the invoice value within a day or two, the factoring company collects the full amount from your customer, and then it sends you the rest minus its fee.

Is invoice factoring a loan?

No. You are selling an asset you already own, your unpaid invoice, not borrowing money. There is no interest rate and no debt added to your balance sheet. That is why approval depends mostly on your customers' credit rather than yours.

How much does invoice factoring cost?

Most factoring fees run about 1% to 5% of the invoice value per 30 days, plus possible extras like setup fees, per-invoice fees, wire fees, and monthly minimums. The longer your customer takes to pay, the more the fee adds up, so compare the total cost over your real payment cycle.

Is invoice factoring legal?

Yes. Selling accounts receivable to a factoring company is a normal, legal business finance practice in the US. The sale is governed by your contract and standard commercial law; there is no federal rule against it.

What is the difference between invoice factoring and invoice financing?

Invoice financing is the umbrella term for borrowing against or selling unpaid invoices. Factoring is one type, where the factor buys the invoice and collects from your customer directly. With invoice discounting, you keep control of collections and your customer never knows.

Do you need good credit for invoice factoring?

Usually not. Because the factoring company gets paid when your customer pays, it cares most about your customers' creditworthiness, not yours. That makes factoring reachable for new businesses and ones a bank has already turned down.

Is invoice factoring worth it?

It is worth it when the cost of waiting to get paid, such as missed payroll, stalled growth, or a pricier loan, is higher than the factoring fee. If you get paid on delivery or can comfortably wait out your terms, it usually is not worth the cost.