Credit model · v1.0 · IFRS-9 shaped

Underwriting methodology

Every note on Tessera is priced by a real expected-loss credit model, not a score or heuristic. The advance rate and yield fall directly out of the loss math. Notes that can't price within market tolerance are declined — not listed at an inflated yield.

Core formula

Two-channel expected loss

Credit channel
EL_credit = PD × LGD_recourse × EAD
Probability of default × recourse-adjusted loss given default × exposure at default. LGD is discounted by originator cash-flow stability and tenure on the platform — a strong, seasoned factor absorbs more of the loss.
Dilution channel
EL_dilution = Dilution_base × 0.9
Dilution captures invoice disputes, short-payments, and fraud scenarios where the invoice is contested rather than unpaid. LGD on dilution is 90% because disputed invoices rarely recover principal.
Combined
EL_total = EL_credit + EL_dilution
The total period EL drives the grade assignment. Annualized EL is used only for the yield build — the grade itself is based on EL over the invoice term to avoid penalizing short-duration paper.

Grade bands

Period EL thresholds: A <0.6% · B 0.6–1.4% · C 1.4–3% · D 3–6% · E >6%

GradeAnnual PDRecourse LGDDilution baseAdvance rateTarget APRTypical deal
A0.20%3.5–7%0.5%87–90%9–13%Enterprise debtor, stable originator, short-term
B1.00%6–12%1.1%82–87%13–21%Mid-market debtor, moderate cash-flow stability
C3.00%10–18%2.2%75–82%20–28%SMB debtor, early-stage originator
D8.00%18–27%4.5%67–75%Stressed
E15.00%25–35%8.0%65–67%Decline →30%

Pricing waterfall

Funding cost
Base cost of capital
SOFR + 20 bps (~5.25%)
EL premium
Expected loss passed through to yield
EL / advance rate
Servicing fee
Platform servicing & reporting
1.50% annual
Risk premium
A=2%, B=3%, C=5%, D=7%, E=9%
2–9% by grade
APR floor
Minimum return for any listed note
7.5%
APR cap
Notes requiring above-cap yield are declined
30.0%

Risk controls

Debtor concentration
Single debtor ≤40% of any originator's open book; adds 15–35 bps reserve above 25%
Advance rate floor
Hard floor at 65% regardless of grade — prevents zero-recovery scenarios
Stress reserve
Reserve = max(stressed EL×3 + concentration premium, 10% floor)
Term gates
Only 30/45/60/75/90-day terms accepted — no open-ended credit facilities
APR decline gate
Any invoice requiring >30% APR is automatically declined at origination
Recourse-aware LGD
LGD is discounted by originator recourse recovery (cash-flow stability + tenure)

Reserve sizing formula

reserve = max(EL_total × stress_mult × period + concentration_adder, 10%)

Stress multiplier of 3× reflects the factoring convention — a single debtor failing takes down all related receivables, not just the specific invoice. The 10% hard floor is the industry standard minimum reserve regardless of credit quality. The advance rate is 1 − reserve, clamped to [65%, 90%].

IFRS-9 alignment: The two-channel EL approach (credit + dilution, period-graded not annualized) maps directly to IFRS-9 Stage 1 expected credit loss provisioning for short-duration trade receivables. This means bank and fund counterparties can book Tessera notes without model translation. Annualized metrics are reported separately for yield comparison.

See live underwritten notesOriginate an invoice →