Guide

Accounts receivable factoring explained

Harbor Logistics ran a regional freight brokerage with $48 million of annual revenue and 71-day days-sales-outstanding (DSO). A bank revolving credit facility required two years of audited EBITDA and a personal guarantee the founder refused to sign. Bridge equity was too dilutive for a seasonal working-capital gap. Treasury needed cash within days of invoicing, not sixty days after delivery.

The company signed a notification factoring program: assign eligible freight invoices to a factor, receive an 85% advance the same day, and let the factor collect from shippers on net-60 terms. Effective DSO fell from 71 to 9 days. All-in cost ran 2.8% per 30-day invoice cycle — expensive versus investment-grade bank debt but cheaper than missing payroll during peak season. One problem emerged: a top-10 customer learned invoices were assigned and demanded direct-payment terms, threatening to renegotiate rates. This guide covers factoring mechanics, recourse vs non-recourse structures, notification vs confidential programs, advance rates and fee stacks, customer credit underwriting, balance-sheet treatment, the Harbor Logistics refactor, a technique decision table versus asset-based lending and reverse factoring, pitfalls, and a treasury checklist.

What factoring is (and is not)

Accounts receivable factoring is the sale or assignment of specific invoices to a third party (the factor) in exchange for immediate cash. The factor advances a percentage of face value, collects payment from the customer (account debtor), and remits the balance minus fees. It is not a loan secured by receivables — though accounting and legal treatment vary by structure.

True sale / assignment — legal ownership or perfected assignment of the invoice passes to the factor; receivables may leave the balance sheet under certain GAAP tests.
Secured lending dressed as factoring — some programs are economically loans with AR as collateral; disclosure and covenant implications differ.
Spot factoring — single-invoice or selective programs without a full ledger commitment.
Whole-ledger factoring — all domestic AR of the borrower flows through the factor on a continuous basis.

Factoring solves a timing problem: customers pay in 30–90 days while payroll, fuel, and carrier advances are due weekly. It does not fix unprofitable unit economics or uncollectible receivables — those show up as chargebacks and reserve withholds.

Recourse vs non-recourse

The recourse distinction defines who eats credit losses when a customer does not pay:

Recourse factoring

If the account debtor defaults beyond a defined period (often 60–90 days past due), the seller must buy back the invoice or replace it with a credit-approved substitute. The factor's fee is lower because credit risk largely stays with the seller. Most U.S. middle-market programs are recourse.

Non-recourse factoring

The factor absorbs customer insolvency risk after approval — but “non-recourse” is narrower than marketing suggests. Disputes, offsets, dilution (credits and returns), and fraud typically remain recourse to the seller. Non-recourse suits sellers with investment-grade customer pools and limited dispute history; pricing runs 50–150 basis points higher per cycle.

Harbor Logistics chose recourse notification factoring because 34% of its ledger was mid-credit freight brokers, not investment-grade shippers. The factor priced customer risk through individual debtor limits rather than absorbing insolvency outright.

Notification, confidential, and verification programs

How customers learn about the factor changes commercial relationships:

Notification factoring — customers receive a notice of assignment and remit payment directly to the factor's lockbox. Setup is faster; factors trust collection more. Some customers interpret notification as a credit weakness signal.
Confidential (non-notification) factoring — customers pay the seller as usual; the seller forwards collections to the factor. Preserves relationships but requires stronger seller controls and higher fees.
Verification — factor confirms invoice validity with the customer before funding (common in construction and freight). Slows advance timing by 24–72 hours but reduces dispute chargebacks.

Harbor's anchor customer pushback after notification led treasury to migrate that relationship to confidential spot factoring at a 3.4% monthly all-in rate — still cheaper than losing the account. Smaller debtors stayed on notification at 2.8%.

Advance rates, discount fees, and reserve holds

Factoring economics stack three components:

Advance rate

The percentage of invoice face value funded upfront — typically 80–90% for domestic commercial AR, 70–80% for government or foreign receivables. Lower advances reflect dispute risk, concentration, or industry (staffing, medical billing).

Discount fee (factoring fee)

Charged on face value per time bucket (e.g., 0.75% per 10 days, 2.25% per 30 days). Annualized cost depends on invoice tenor and how quickly customers pay. A 2.25% fee on net-45 invoices that collect on day 42 implies roughly 19–22% APR on the advanced amount — why factoring suits bridge liquidity, not permanent capital structure.

Reserve hold

The unadvanced 10–20% sits in a reserve account until the customer pays. The factor releases reserve minus fees, chargebacks, and dilution. Slow-paying customers trap reserve and silently reduce available liquidity.

Additional fees to model: wire fees, minimum monthly volume charges, due-diligence setup, credit-check fees per new debtor, and early-termination penalties on whole-ledger contracts.

Customer credit underwriting and concentration

Factors underwrite the seller's customers, not just the seller:

Debtor credit limits — each customer approved up to a cap; invoices above the cap are ineligible until the factor reviews financials or payment history.
Concentration limits — any single customer above 20–30% of the ledger may be excluded or require non-recourse pricing.
Aging ineligibility — invoices past 60–90 days from invoice date are typically rejected.
Dilution history — high credit-memo rates on prior ledgers reduce advance rates.

A factor can reject a creditworthy seller because its customer base is weak — common in early-stage B2B startups selling to other startups. Improving customer credit quality (shorter terms, personal guarantees from debtors, credit insurance) expands eligible volume.

Balance-sheet and disclosure treatment

Under ASC 860, a factoring arrangement qualifies for sale accounting only if the seller surrenders control of the receivables. Recourse provisions, repurchase obligations, or continued servicing often force secured-borrowing presentation — AR stays on the balance sheet with a liability to the factor.

Even off-balance-sheet treatment does not hide economics: auditors and lenders ask for monthly aging schedules, reserve balances, and chargeback history. Factoring-heavy companies show artificially low AR on the balance sheet but disclose the program in footnotes. Covenant definitions in bank facilities often add back factored receivables to leverage calculations.

Harbor Logistics: from 71-day DSO to selective programs

Before factoring, Harbor's cash conversion cycle was 94 days (high DIO from prepaid carrier capacity plus 71-day DSO). Peak Q3 needed $6.2 million of weekly outflows against $4.1 million of collected cash.

The whole-ledger notification program funded $38 million of monthly invoice flow at 85% advance. Effective DSO dropped to 9 days when measured on cash-in-hand date. All-in cost was $1.07 million annually on $38 million average ledger — 2.8% per cycle blended.

After the anchor-customer incident, treasury split the ledger:

Tier 1 (62% of volume) — notification recourse at 2.8% / 30 days.
Tier 2 (23%) — confidential spot at 3.4% / 30 days for relationship-sensitive accounts.
Tier 3 (15%) — unfactored; customers on net-30 with early-pay discounts.

Blended annual factoring cost rose to 3.1% but preserved the top account. Eighteen months later, audited EBITDA qualified Harbor for a $25 million ABL revolver at SOFR + 275 bps — factoring had been bridge financing, not the terminal structure.

Technique decision table

Structure	Best when	Strengths	Weaknesses
Recourse notification factoring	Fast setup, mixed customer credit, AR-only collateral	Same-day funding; no bank covenant package	Customer knows; seller retains credit risk
Non-recourse factoring	Investment-grade debtor pool, insolvency concern	Transfers approved insolvency risk	Expensive; disputes still recourse
Confidential factoring	Relationship-sensitive customers	Preserves commercial terms appearance	Higher fees; stricter seller controls
ABL revolver on AR	Larger borrowers, inventory + AR, multi-year facility	Lower all-in cost at scale; committed line	Slow setup; field exams, dominion, covenants
Reverse factoring / SCF	Investment-grade buyer, supplier program	Low supplier cost; buyer credit spread	Buyer must sponsor; not seller-initiated
Spot invoice financing (marketplace)	Single large invoice, one-off need	Minimal contract; fast	Highest per-invoice fees; limited volume

Common pitfalls

Annualizing a monthly fee incorrectly — 2% per 30-day cycle is not 24% APR; depends on collection speed and advance rate.
Ignoring reserve trap — slow debtors lock the 10–20% holdback and shrink real liquidity.
Customer notification surprise — key accounts may renegotiate terms or shift volume when assignment notices arrive.
Cross-default with bank debt — some credit agreements prohibit factoring without consent.
Concentration cliff — losing one large approved debtor can void half the ledger overnight.
Dispute chargebacks — freight, construction, and staffing see high dilution; factors claw back advances quickly.
Whole-ledger lock-in — termination fees and 60–90-day wind-down periods block switching to ABL.
Off-balance-sheet assumption — recourse factoring usually stays on balance sheet; leverage ratios do not improve.

Treasury and credit checklist

Calculate all-in cost per cycle: advance rate, discount fee, wire/minimums, and reserve timing.
Map customer concentration against factor debtor limits before signing.
Decide notification vs confidential per account tier, not ledger-wide by default.
Model effective DSO and CCC impact versus bank revolver pricing.
Review existing bank covenants for factoring prohibitions or consent requirements.
Negotiate chargeback and dispute windows; align with your industry's dilution norms.
Require monthly aging, reserve, and purchase reports from the factor.
Plan an exit path to ABL or cash-flow revolver once EBITDA and audit history qualify.
Stress-test anchor-customer reaction to assignment notices before go-live.
Compare spot, selective, and whole-ledger programs on the same 90-day invoice sample.

Key takeaways

Factoring converts invoice timing into same-day cash by selling or assigning AR to a factor — it is bridge liquidity, not cheap long-term debt.
Recourse programs leave credit risk with the seller; non-recourse only covers approved customer insolvency, not disputes.
Advance rates, per-cycle discount fees, and reserve holds determine true cost — model them together, not the headline rate alone.
Notification programs are cheaper but visible to customers; Harbor Logistics split tiers after an anchor account pushed back.
Graduate to ABL or a bank revolver when scale and audit history support lower all-in pricing.