Invoice Factoring Calculator

Last reviewed 13 August 2026

Turn a factoring quote into the number that actually matters: the effective annual rate you are paying for the cash, and what the same money would cost you anywhere else.

Invoice factoring costs 1 to 5 percent of the invoice, which is 15 to 70 percent APR once you annualize it. Divide the total fees by the cash the factor actually advances, then scale that over the days until your customer pays.

Effective APR = (Total fees / Cash advanced) x (365 / Days until paid)

Example: a $50,000 invoice, 3 percent fee, 90 percent advance, customer pays in 45 days. The fee is $1,500 on $45,000 of cash: (1,500 / 45,000) x (365 / 45) = 27.0% APR.

Your factoring quote

Enter the deal as the factor described it. The advance rate matters as much as the fee.

$

Enter an invoice amount above zero.

Enter at least one day.

Enter an advance rate between 1 and 100.

$

How the fee is charged

Two structures are common, and they price very differently on a slow payer.

Enter a fee between 0 and 50 percent.

What you would do instead

Factoring only looks expensive against something. These two set what it is measured against.

$

Which option is cheapest for this invoice

The same funding gap, priced three ways. The cheapest row is highlighted.

OptionCost for this invoiceAnnual cost at your volumeWhat you give up
Factor the invoice----A fixed slice of every invoice, and the customer relationship
Draw on the credit line----Facility headroom, and you carry the credit risk
Wait to be paid----Nothing in fees, but the cash is idle for the whole period

Waiting costs your cost of capital on the cash you have not been paid. Credit line cost is interest on the same advance for the same days.

Key takeaways

  • Factoring is quoted as a flat percent of one invoice, so convert it to an APR before you compare it.
  • Divide the fee by the cash actually advanced, not by the invoice value.
  • A 3 percent fee on a 90 percent advance, paid in 45 days, is 27 percent a year.
  • The faster your customers pay, the more expensive the same factoring fee becomes.
  • Factoring earns its price as a bridge with a dated exit, not as a permanent operating model.

Effective annual rate

27.0%

Fee on this invoice $1,500, cash today $45,000

015%25%40%60%+

Three times the cost of a typical credit line.

Total fee on this invoice$1,500
Cash you receive on day one$45,000
Reserve released when they pay$3,500
The same gap on your credit line$499
Cost of simply waiting to be paid$666
Cheapest alternative to factoringCredit line
Monthly factoring cost at your volume$6,000
Annual factoring cost at your volume$72,000
Annual saving if you use that alternative$60,032
Delay the fee has to buy to break even101 days
Cash freed by collecting 20 days sooner$131,507

Collecting faster is cheaper than factoring

Paidnice collects faster so you need the factoring line less often.

No card required.

What invoice factoring actually costs

Factoring is priced in a unit nobody else in finance uses: a flat percentage of the invoice, charged once. That is why it feels cheap and is not.

A bank quotes you an annual rate. A factor quotes you 3 percent. Those two numbers are not comparable, and the gap between them is the whole commercial model.

Three percent of an invoice settled in 45 days is 27 percent a year. Settled in 30 days it is 41 percent a year. The faster your customers pay, the more expensive factoring gets, which is the reverse of how the rate card reads.

The headline understates the cost for a second reason. You do not receive the invoice value, you receive the advance, typically 70 to 95 percent of face. The rest is held as a reserve until your customer pays.

So the fee is charged on money you never touched. Dividing the fee by the advance rather than by the face value is the one correction that turns a factoring quote into a comparable interest rate.

The quick version. Fee divided by the cash you actually got, times 365 divided by the days until payment. A $1,500 fee on $45,000 for 45 days is 27 percent a year.

The formula, part by part

Each input in Effective APR = (Total fees / Cash advanced) x (365 / Days until paid) is a place where a quote gets flattered.

1
Total fees, not the discount rate

Add every charge that attaches to the invoice: the discount fee, wire or ACH fees, credit checks, upload charges, and a share of any monthly minimum you will not otherwise hit. On a small invoice those extras can outweigh the discount fee.

2
Cash advanced, not invoice value

Multiply the invoice by the advance rate. At 90 percent on a $50,000 invoice you are borrowing $45,000, not $50,000. Dividing by face value understates the rate by roughly the advance discount, and every factor quotes against face value.

3
Days until payment, not your terms

The clock runs until the customer settles with the factor, not until your stated due date. If you invoice on net 30 and your customers pay on day 52, use 52. Using your terms instead is the most common way this calculation comes out wrong.

4
Annualize with 365

Scaling to a year makes the number comparable with a loan, an overdraft or a card rate. It does not mean you pay that much. It means borrowing at this price for a year would cost that much.

A worked example

A distribution business factors a $50,000 invoice. The factor quotes 3 percent, advances 90 percent, and the customer settles on day 45.

  • Fee: 50,000 x 3% = $1,500
  • Cash advanced on day one: 50,000 x 90% = $45,000
  • Reserve released on day 45: 50,000 minus 45,000 minus 1,500 = $3,500
  • Cost ratio: 1,500 / 45,000 = 0.0333
  • Annualized: 0.0333 x (365 / 45) = 27.0% APR

The same $45,000 drawn on a 9 percent credit line for 45 days costs 45,000 x 0.09 x 45 / 365 = $499. Factoring this invoice costs three times as much as borrowing against it.

One cost the formula leaves out: the $3,500 reserve is your money, held by someone else, earning you nothing for 45 days.

How to read your APR

Read your APR against the cheapest funding you could actually get approved for, not the cheapest funding that exists.

If no bank will lend to you this quarter, a 40 percent APR that keeps the business trading is a different decision from a 40 percent APR sitting next to an unused overdraft.

Competitive

Under 15% APR

Priced like asset finance. Usually large invoices or long terms.

Normal

15 to 25% APR

The typical range. Worth doing if the cash earns more than that.

Expensive

25 to 40% APR

Above most card rates. Get a second quote before signing.

Emergency pricing

Over 40% APR

Only defensible as a short bridge with a dated exit plan.

Then run one more test against your margin. If your gross margin is 22 percent and factoring costs 3 percent of every invoice, factoring takes roughly one seventh of the margin on every job you fund.

Invoice factoring rates by industry

Fees run from 2 percent in trucking and manufacturing to 8 percent in retail. Your customers' credit quality and how easily the invoice can be verified set the price, which is why sectors differ so much.

The APR column converts each range at a 90 percent advance and typical settlement days for that sector.

IndustryFee rangeTypical termsEffective APRWhy it prices there
Trucking and transport 2 to 4% 30 days 27 to 54% High volume, short cycles, freight bills are easy to verify
Manufacturing 2 to 3% 30 to 60 days 18 to 27% Larger invoices, established buyers, lower perceived risk
Staffing and recruitment 3 to 5% 15 to 30 days 41 to 68% Weekly payroll pressure gives the factor pricing power
Healthcare 2 to 4% 30 to 90 days 14 to 27% Payer mix and claim adjustments slow settlement
Construction 3 to 6% 30 to 90 days 20 to 41% Retentions, progress claims and lien risk price the deal up
Retail and consumer goods 4 to 8% 30 to 45 days 36 to 72% Chargebacks, returns and dilution raise the risk premium

Fee ranges compiled from published factor rate cards and publicly advertised quotes, reviewed August 2026. APR figures are calculated from those ranges at a 90 percent advance, not sourced. Treat the whole table as orientation, not as a quote. For background on how small firms use receivables finance, see the Federal Reserve Banks Small Business Credit Survey and the SBA guide to alternative funding.

The three fee structures, and which one you are being quoted

Two quotes at 3 percent can differ by 20 points of APR, because the percentage means different things depending on the structure. Ask which of these three you are looking at before you compare anything.

StructureHow it is chargedWho it favors
Flat discount feeOne percentage of face value, charged once, whatever day the invoice settlesYou, if your customers are slow. The factor, if they are fast
Fee per periodA rate for each 10, 15 or 30 day block, with part periods charged in fullThe factor. A 1 percent per 10 days deal on a day 45 payer is 5 percent, not 4.5
Tiered or prime plusA base rate plus a margin over prime, accrued daily on the outstanding advanceYou, usually. It is the closest thing to honest interest, and the rarest offer

Part periods are charged in full. On a fee per period deal, a customer who pays on day 31 of a 30 day block costs you a whole extra period. One day of slippage on a 1 percent per 10 days facility adds a full percentage point to the invoice.

What pushes the cost up

The discount fee is the part you negotiate. These are the parts that quietly move the real number.

  • Monthly minimums. A $2,000 monthly minimum on a month where you only factored $30,000 is a 6.7 percent effective rate, whatever the contract says.
  • A low advance rate. Dropping the advance from 90 to 80 percent raises the APR by about an eighth for the same fee, because you borrowed less for the same price.
  • Slow settlement inside a period structure. Every part period rounds up. Slow payers are not just a cash problem here, they are a pricing problem.
  • Recourse. On a recourse facility you buy the invoice back if the customer never pays, so you carry the credit risk and still paid the fee.
  • Dilution. Credit notes, short payments and disputes reduce what the factor collects, and most contracts charge that shortfall back to you.
  • Notification. Your customer now pays a finance company rather than you. That is not a fee, but it changes the relationship and it is very hard to reverse.

The cheaper alternative: collect 20 days sooner

Factoring buys time. Collecting faster removes the need to buy any, and the two are nowhere near each other on price.

Take the default example: $200,000 factored a month, $2.4 million a year, at an effective 3 percent. That costs $72,000 every year, forever.

Now cut 20 days off the time the same customers take to pay. Daily credit sales are 2,400,000 / 365 = $6,575, so 20 days releases $131,507 of cash, once, permanently, for nothing.

Factoring is a recurring charge against margin that never ends. Faster collection is a one time release that stays released while the behavior holds. By year three the business that fixed collections is $216,000 ahead and still holding the cash.

Check the gap before you fund it. Run your days sales outstanding first. If your DSO is 20 or more days beyond your stated terms, a large part of the cash you are about to buy is cash you already earned and have not chased.

The gap between your terms and your DSO is usually process, not customer behavior. Invoices go out late, reminders go out when someone remembers, and disputes sit unowned.

That work is repetitive, so it automates. Paidnice is not a lender and does not fund invoices. It works the receivables side: automated email and SMS reminders fire before and after the due date, customer statements go out on a schedule, AR reporting keeps the aging picture visible, and late fees give the conversation leverage when a customer is choosing to pay you last.

When factoring genuinely makes sense

Factoring is expensive money, and expensive money is sometimes the right money. It earns its price in four situations.

  1. Growth outruns working capital. You have signed orders you can deliver profitably but cannot fund. If gross margin on that work is 30 percent and the funding costs 27 percent APR for 45 days, the deal clears comfortably.
  2. Payroll is weekly and settlement is monthly. Staffing agencies live in this gap structurally. No amount of collections discipline closes a mismatch that is built into the business model.
  3. Your customers are creditworthy and you are not. Factoring underwrites your customer, not you. For a young business with blue chip clients it is often the only facility available.
  4. Collections would otherwise need a hire. A full service factor runs credit control for you. Compare the fee against the loaded cost of the person you would need instead, not against zero.

The test is whether you can name the day you stop. Factoring as a bridge with a dated exit is a reasonable financial decision. Factoring as a permanent operating model hands a fixed percentage of every invoice you ever raise to someone else.

Want to need the factoring line less often?

Collecting twenty days sooner costs nothing and frees the same cash. Paidnice chases overdue invoices for you in Xero and QuickBooks.

See automated reminders

Calculating factoring cost in Excel

Put the invoice amount in A1, the fee percent in B1, the advance percent in C1, days until payment in D1 and other fees in E1.

  • Total fees: =(A1*B1/100)+E1
  • Cash advanced: =A1*C1/100
  • Effective APR: =((A1*B1/100+E1)/(A1*C1/100))*(365/D1), formatted as a percentage
  • Fee per period, rounding part periods up, with the period length in F1: =B1*CEILING(D1/F1,1)
  • The same gap on a credit line at rate G1: =(A1*C1/100)*(G1/100)*(D1/365)
  • Annual cost at monthly volume H1: =H1*12*((A1*B1/100+E1)/A1)

Watch the denominator. If you divide fees by the invoice value instead of the advance, the APR comes out roughly 10 percent too low at a 90 percent advance, and 25 percent too low at an 80 percent advance. Every factor's own illustration uses face value.

Factoring against the other ways to fund a receivable

Expressed as annual rates, the funding options rank in a stable order. What changes between businesses is which of them you can actually access.

OptionTypical costSpeedWho it underwrites
Collect on timeNothingWeeks to changeNobody
Early payment discount7 to 56% APR depending on termsImmediateNobody
Bank line of credit7 to 15% APR2 to 8 weeksYou
Invoice discounting10 to 25% APR1 to 3 weeksYou and the ledger
Invoice factoring15 to 70% APR24 to 48 hoursYour customer
Merchant cash advance40 to 200% APR24 hoursYour card takings

Speed is the product you are buying. The list gets faster and easier to qualify for as it goes down, and price is what pays for both.

Before you buy speed, check what the delay is made of with the DSO calculator, the AR aging analysis and the cash conversion cycle calculator. Funding a gap you could have closed is the most expensive mistake on this page.

Common mistakes

These six get the cost wrong, and most of them get it wrong in the factor's favor.

  • Comparing a factoring percentage with a bank APR. They are different units. Convert first, then compare.
  • Dividing by invoice value instead of the advance. Understates the rate on every deal, and the understatement grows as the advance rate falls.
  • Using stated terms instead of real payment days. Your customers' actual behavior sets the cost, not your invoice footer.
  • Ignoring the monthly minimum. In a quiet month the minimum becomes the entire fee, and the effective rate goes vertical.
  • Forgetting the reserve. Ten percent of every invoice sits with the factor earning you nothing until the customer settles.
  • Treating it as permanent. A bridge with no exit date is just an expensive new cost line that grows with revenue.

Frequently asked questions

How much does invoice factoring cost?

Invoice factoring costs 1 to 5 percent of the invoice face value for most businesses, and 4 to 8 percent in higher risk categories such as retail. That headline rate is charged once per invoice, not per year. Converted to an annual rate it usually lands between 15 and 70 percent, because you are only borrowing the money for 30 to 60 days.

How do you calculate the cost of invoice factoring?

Take the total fees you pay, divide by the cash the factor actually advances, then annualize over the days until your customer pays. The formula is Effective APR = (Total fees / Cash advanced) x (365 / Days until paid). A 3 percent fee on a 50,000 dollar invoice with a 90 percent advance, paid in 45 days, is 1,500 dollars on 45,000 dollars for 45 days, which is 27 percent APR.

How much do factoring companies charge?

Factoring companies charge a discount fee of 1 to 5 percent per invoice, and most add a set of smaller charges on top. Expect an application fee of 0 to 500 dollars, due diligence of 100 to 1,000 dollars, wire fees of 15 to 35 dollars per transfer, and a monthly minimum of 500 to 5,000 dollars. The minimum is the one that hurts if your volume drops.

What is a good invoice factoring rate?

A good rate depends on your sector and your customers, not on you. Trucking and manufacturing sit at the cheap end at 2 to 3 percent for 30 day terms. Staffing runs 3 to 5 percent, construction 3 to 6 percent. Anything above 5 percent for 30 day terms on creditworthy customers is expensive, and worth taking to a second factor before you sign.

How do you compare invoice factoring rates between companies?

Convert every quote to an effective APR before you compare, because the headline percentages are not like for like. Ask each factor for the discount rate, the advance rate, the fee period, every ancillary charge, the monthly minimum and whether the facility is recourse or non recourse. Two quotes at 3 percent can differ by 20 points of APR once the advance rate and fee period are included.

What is the effective APR of a 2 percent factoring fee?

It depends entirely on how long the money is out. A 2 percent fee at a 90 percent advance is about 27 percent APR if your customer pays in 30 days, 18 percent if they pay in 45 days, and 14 percent if they pay in 60 days. The same fee looks cheaper the slower your customers are, which is the opposite of how most people read it.

What is the cost of factoring accounts receivable across a year?

Multiply your annual factored volume by your effective fee rate. A business factoring 200,000 dollars a month at 3 percent pays 6,000 dollars a month, or 72,000 dollars a year. That is a permanent charge against gross margin, so compare it against your net profit rather than your revenue. For many businesses factoring costs more than their entire marketing budget.

What is the difference between invoice factoring and invoice discounting?

Factoring sells the invoice, so the factor owns the debt and collects from your customer directly. Invoice discounting lends against the invoice while you keep the ledger and keep chasing the payment yourself. Discounting is usually cheaper and stays confidential, but lenders only offer it to businesses with proven credit control, which is why factoring is the default offer to smaller firms.

What does an invoice finance calculator tell you that a rate card does not?

A rate card shows the discount fee. A calculator shows the annual cost of that fee against the cash you actually receive, which is the only number you can compare with a bank rate. It also shows what the same funding gap would cost on a credit line, and what you would save by not needing the funding at all.

Is invoice factoring worth it?

It is worth it when the cash unblocks work you could not otherwise take, and the margin on that work is comfortably above the effective APR. It is not worth it as a permanent substitute for collecting on time, because the fee repeats on every invoice forever. Run the APR first, then check it against your gross margin percentage.

When does invoice factoring genuinely make sense?

When you have a real cash crisis and no credit line, when a large order needs funding before you can deliver it, when your customers are creditworthy but structurally slow, or when your growth outruns your working capital. Factoring is also reasonable if outsourcing collections saves you a hire. It is a bridge, so agree the exit before you sign.

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