How does invoice factoring work?

Invoice factoring lets you sell your unpaid invoices to a factoring company (called a factor) at a discount. The factor advances you 70–95% of the invoice value immediately (the advance rate), then collects payment from your customer. Once paid, the factor sends you the remaining reserve minus their fee. You get cash fast without waiting 30–90 days for your customer to pay.

What is a good factoring rate?

Factoring rates typically range from 1%–5% per 30 days, depending on your industry, invoice volume, and customer creditworthiness. Rates below 2% per month are competitive for large-volume clients. Trucking and staffing industries often see 2%–4% rates. Always compare the effective APR — factoring fees translate to 24%–70%+ APR, which is high compared to a bank line of credit.

Invoice factoring vs. bank loan — which is better?

Invoice factoring provides instant liquidity without debt or collateral, but at a higher cost (effective APR of 24–70%+). Bank lines of credit are cheaper (6–12% APR) but require strong credit, collateral, and take weeks to set up. Factoring is better when you need cash immediately, have poor credit, or are a young business. A bank LOC is better for established businesses with strong credit who can wait for approval.

Is invoice factoring good for small businesses?

Yes — invoice factoring is especially useful for small businesses with cash flow gaps caused by slow-paying customers. It does not require good personal credit (the factor cares about your customers' creditworthiness), there is no debt added to your balance sheet, and approval is fast. The main downside is cost: factoring fees reduce your net proceeds by 2–10% per invoice. It works best as a short-term cash flow tool, not a permanent financing solution.

Invoice Factoring Calculator

1

Enter Your Invoice Details

Input your invoice amount, the factoring company's rate (fee as a percentage of the invoice), and the advance rate (the percentage of the invoice you receive upfront). Add any additional fees such as origination or monthly minimums.

2

Set the Payment Timeline

Enter the days until the invoice is due. This determines the annualized cost (APR) of factoring — a 30-day invoice at 3% costs far more on an annualized basis than a 90-day invoice at the same rate.

3

Review Your Advance and True Cost

The calculator shows your immediate advance, factoring fee, reserve held back, and the net amount you receive. Compare the APR against your line-of-credit rate to see the true cost premium of factoring.

4

Compare Financing Alternatives

Switch to the Comparison tab to see factoring against a line of credit and the trade-off of waiting for payment. Use the Runway tab to see how factoring improves your cash runway when you enter your current cash and monthly burn rate.

Advance and Fee Calculation

Advance = Invoice Amount × Advance Rate% · Fee = Invoice Amount × Factoring Rate%

The advance is the immediate cash you receive when you sell the invoice. The factoring fee is the cost charged for the service. The reserve is the remainder held by the factor until the customer pays: Reserve = Invoice − Advance − Fee − Additional Fees. When the customer pays, the factor releases the reserve minus any additional fees.

Effective Annual Percentage Rate (APR)

APR = (Factoring Fee / Net Proceeds) × (365 / Days Until Due) × 100

APR converts the flat factoring rate into an annualized cost comparable to other financing products. A 3% rate on a 30-day invoice = APR of roughly 37%. The same 3% rate on a 90-day invoice = APR of roughly 12%. This is why short-tenor invoices are significantly more expensive on an annualized basis than long-tenor ones.

Daily Factoring Cost

Daily Cost = Fee / Days Until Due

Breaking the fee into a daily cost helps compare factoring against the opportunity cost of waiting for payment. If the daily factoring cost is $50 but your daily burn rate is $1,000 (meaning a 30-day payment delay costs you $1,000 in foregone operations), factoring is clearly worth the fee.

Factoring Rate The fee charged by the factoring company as a percentage of the invoice face value, typically 1–5% per 30 days. Lower rates apply to larger invoice volumes, creditworthy customers, and longer-established factoring relationships. Rates above 5% often indicate higher credit risk in the underlying invoice.

Advance Rate The percentage of the invoice value the factoring company advances to you immediately. Typical advance rates are 70–95%. Higher advance rates (90–95%) are available for lower-risk invoices. The remaining percentage becomes the reserve, released when the customer pays.

Reserve The portion of the invoice held back by the factoring company until the customer pays. Reserve = Invoice − Advance − Fee. When the customer settles, the factor releases the reserve minus any additional fees. If the customer does not pay, in recourse factoring you must refund the advance.

Recourse vs. Non-Recourse Factoring In recourse factoring (most common), you must refund the factor if the customer does not pay — you bear the credit risk. Non-recourse factoring transfers credit risk to the factor if the customer goes bankrupt, but rates are typically 0.5–1.5% higher to compensate for this insurance.

APR Annual Percentage Rate — the annualized cost of the factoring fee. Because factoring is a short-term instrument, the APR is typically high (20–60%) even when the flat rate seems modest. APR is the correct metric for comparing factoring against lines of credit and other financing options.

Cash Runway The number of months a business can continue operating before running out of cash, calculated as Current Cash / Monthly Burn Rate. Factoring improves runway by converting outstanding receivables into immediate cash, often adding 1–3 months of runway without adding formal debt.

🚛

Carlos — Trucking Company Owner

Transportation Factoring

Invoice Amount $15,000 Factoring Rate 3.5% Advance Rate 80% Days Until Due 30 Additional Fees $250

Advance = $12,000; Fee = $525; Reserve = $2,475 released on payment; Net proceeds = $11,475; APR = 43%. Trucking factoring at 30 days is expensive on an APR basis, but Carlos's fuel and driver costs must be paid weekly — the $12,000 advance on a $15,000 load covers his operating cycle. Without factoring, he would need to turn down new loads while waiting 30 days to be paid.

🏗️

Sandra — Construction Subcontractor

Construction Invoice Factoring

Invoice Amount $100,000 Factoring Rate 2.5% Advance Rate 90% Days Until Due 45 Additional Fees $500

Advance = $90,000; Fee = $2,500; Reserve = $7,000 released on payment; Net = $89,500; APR = 20%. At $100K invoice size, Sandra qualifies for a lower factoring rate (2.5% vs 3.5%) and higher advance (90%). The 45-day tenor reduces APR meaningfully compared to 30-day invoices. For construction projects with 45–60 day payment cycles, factoring bridges the gap between project completion and general contractor payment.

Invoice factoring — selling your outstanding accounts receivable to a third party in exchange for immediate cash — is one of the oldest forms of business financing, dating back to medieval trade routes. It serves a specific need: bridging the gap between when you complete work or deliver goods and when your customers actually pay. Understanding the true cost, the scenarios where factoring makes economic sense, and the alternatives available is essential before committing to a factoring arrangement.

The True Cost of Factoring: APR vs. Flat Rate

The most common mistake businesses make when evaluating factoring is comparing the flat factoring rate (e.g., 3%) to annual interest rates on bank products. A 3% factoring fee on a 30-day invoice translates to an APR of approximately 36% — far higher than most business loans or lines of credit. However, this comparison is somewhat misleading because factoring is not a loan: it is a sale of an asset (the receivable). The correct comparison is not APR but rather the cost of factoring versus the cost of the alternative — which for many small businesses is either foregoing revenue (because they cannot fund the next job without the advance), taking on high-interest short-term debt, or having the owner inject personal capital. In these scenarios, factoring at 36% APR may be the cheapest available option. APR is most useful for comparing factoring against lines of credit and invoice financing products that offer similar immediate liquidity.

Industries Where Factoring Is Standard Practice

Factoring is not a last resort for distressed businesses — in several industries it is the standard operating model for managing cash flow. Trucking and transportation companies use factoring on virtually every load because drivers must be paid within days while shippers pay in 30–45 days. Staffing agencies factor weekly payroll invoices because they must pay placed workers before clients settle monthly invoices. Construction subcontractors factor progress billing invoices because general contractors routinely pay in 45–90 days while labor and material costs are due weekly. Government contractors factor because government payment cycles are notoriously slow (60–120 days) and the invoices are extremely creditworthy. In all these cases, factoring is a cost of doing business rather than a distress signal — it converts a billing model mismatch into manageable working capital.

Factoring vs. Line of Credit: Choosing the Right Tool

Lines of credit and factoring serve the same liquidity purpose but have fundamentally different qualification requirements and cost structures. A line of credit requires the borrowing business to demonstrate creditworthiness — revenue history, profitability, personal guarantees from founders. Factoring qualifies based primarily on your customer's creditworthiness, not yours, because the factoring company is buying a claim on your customer's payment, not lending against your business assets. This makes factoring accessible to startups, businesses with thin credit histories, and companies recovering from losses — scenarios where bank credit is unavailable. The tradeoff is cost: a line of credit at 8–15% APR is typically 2–4× cheaper than factoring on a per-invoice basis. Businesses that can qualify for a line of credit should generally use it as the primary liquidity tool and reserve factoring for peak demand periods or invoices above the line limit.

What is invoice factoring and how does it work?+

Invoice factoring is the sale of outstanding customer invoices to a factoring company in exchange for an immediate cash advance (typically 70–95% of the invoice value). The factor collects from your customer, then releases the remaining balance minus their fee. You receive cash today; the factor waits for your customer to pay.

What are typical invoice factoring rates?+

Factoring rates typically range from 1–5% of the invoice face value per 30 days. Volume discounts apply: small businesses pay 3–5%; large-volume factoring programs pay 1–2%. Industry also matters — trucking and staffing typically see 2–4%; government contractor invoices may factor at 1–2% due to low default risk.

What is the difference between recourse and non-recourse factoring?+

In recourse factoring, you must repay the advance if your customer doesn't pay — you bear the credit risk. Non-recourse factoring transfers this risk to the factor (if the customer goes bankrupt). Non-recourse costs 0.5–1.5% more. Most factoring is recourse since factors want you to remain responsible for customer relationships.

How does invoice factoring affect my APR?+

APR = (Fee / Net Proceeds) × (365 / Days Until Due) × 100. A 3% fee on a 30-day invoice ≈ 37% APR. The same fee on a 90-day invoice ≈ 12% APR. Short-tenor invoices are far more expensive on an annualized basis, making factoring most efficient for longer payment cycles.

Is invoice factoring better than a bank loan?+

Factoring is not a loan — it is a sale of receivables. It is better than a bank loan when you cannot qualify for bank credit (because factoring evaluates your customer's creditworthiness, not yours) or when you need immediate liquidity without taking on debt. Bank credit is cheaper (8–15% APR vs 20–50%) when you can qualify.

What industries use invoice factoring most commonly?+

The most active factoring industries are: trucking/transportation (where loads are delivered before shippers pay in 30–45 days), staffing agencies (weekly payroll vs. monthly client billing), construction subcontractors (progress billing with 45–90 day GC payment cycles), and government contractors (notorious for slow payment).

How does factoring improve cash runway?+

Cash runway = Current Cash / Monthly Burn Rate. By converting outstanding invoices into immediate cash, factoring raises your current cash balance without adding formal debt. For a business with $50K in outstanding invoices and $30K monthly burn, factoring those invoices at 85% advance adds 1.4 months of runway.

Invoice Factoring Calculator

📄 Invoice Details

📊 Factoring Summary

How to Use This Calculator

Enter Your Invoice Details

Set the Payment Timeline

Review Your Advance and True Cost

Compare Financing Alternatives

Formula & Methodology

Key Terms Explained

Real-World Examples

Carlos — Trucking Company Owner

Sandra — Construction Subcontractor

Invoice Factoring: When It Makes Sense and What It Really Costs

The True Cost of Factoring: APR vs. Flat Rate

Industries Where Factoring Is Standard Practice

Factoring vs. Line of Credit: Choosing the Right Tool

Frequently Asked Questions

📄 Invoice Details

📊 Factoring Summary

How to Use This Calculator

Enter Your Invoice Details

Set the Payment Timeline

Review Your Advance and True Cost

Compare Financing Alternatives

Formula & Methodology

Key Terms Explained

Real-World Examples

Invoice Factoring: When It Makes Sense and What It Really Costs

The True Cost of Factoring: APR vs. Flat Rate

Industries Where Factoring Is Standard Practice

Factoring vs. Line of Credit: Choosing the Right Tool

Frequently Asked Questions

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