The Crimson Bench

Company ModelIntegrated Company Model

Fintech / Lending Book — End-to-End Operating Model

Originations → book → net interest margin → cash → valuation.

$250

Business Drivers

The Book

Balances and flow.

Spread

What the book earns.

Costs & Horizon

Ops and time.

Capital & Exit

Cash and multiple.

The Integrated Picture

Loan book (end)

$16,389,288

Net interest / month (end)

$163,893

Equity cash (end)

$2,467,178

Net interest margin

12%

Annual net interest

$1,966,715

Implied valuation

$5,900,144

Company Trajectory

MonthLoan BookInterest IncomeNet InterestEBITDAEquity Cash
Month 1$6,083,333$121,667$60,833-$89,167$2,910,833
Month 3$7,986,690$159,734$79,867-$70,133$2,761,464
Month 6$10,287,201$205,744$102,872-$47,128$2,598,408
Month 9$12,059,181$241,184$120,592-$29,408$2,493,490
Month 12$13,424,057$268,481$134,241-$15,759$2,433,354
Month 15$14,475,359$289,507$144,754-$5,246$2,407,711
Month 18$15,285,129$305,703$152,851$2,851$2,408,636
Month 21$15,908,858$318,177$159,089$9,089$2,430,026
Month 24$16,389,288$327,786$163,893$13,893$2,467,178

Spread Economics

MetricValue
Portfolio APR24%
Funding cost8%
Annual charge-off4%
Gross spread12%
Ending net interest margin12%

The Operator's Read

The book scales to $16,389,288 at a 12% net interest margin, throwing off $1,966,715 annually. At 3× net interest that implies $5,900,144. This model assumes debt-funded balances — a bespoke version adds a full funding stack, cohorts, and loss curves.

Interactive preview · Educational model, not financial advice · Built by The Crimson Bench

About This Model

A full operating model of a lending business. Originations build the loan book against runoff; the book earns interest net of funding cost and credit losses; net interest income covers ops to produce EBITDA; and net interest run-rate sets an implied valuation. Note: the book is assumed debt-funded; equity cash reflects operating profit.

The Linked Driver Groups

Everything is connected — here is what feeds the model.

The Book

Balances and flow.

Starting loan book · Originations / month · Avg loan life (months)

Spread

What the book earns.

Portfolio APR · Funding cost (APR) · Annual charge-off rate

Costs & Horizon

Ops and time.

Operating cost / month · Months to simulate

Capital & Exit

Cash and multiple.

Equity cash (start) · Exit multiple (× net interest)

Assumptions & Limitations

  • The model is deterministic and monthly — it projects your drivers forward with clear arithmetic, one scenario at a time.
  • Defaults are illustrative benchmarks. The paid version ships in Excel so you can wire in your real chart of accounts.
  • For a model built entirely around your business — hiring waves, fundraising rounds, working capital — commission a bespoke engagement.
  • Educational decision-support tool — not financial, investment, tax, or legal advice.

Frequently Asked Questions

What is the Fintech / Lending Book — End-to-End Operating Model?

A full operating model of a lending business. Originations build the loan book against runoff; the book earns interest net of funding cost and credit losses; net interest income covers ops to produce EBITDA; and net interest run-rate sets an implied valuation. Note: the book is assumed debt-funded; equity cash reflects operating profit.

What makes it "end-to-end"?

Unlike a single calculator, this model links 4 driver groups — The Book, Spread, Costs & Horizon, Capital & Exit — into one integrated picture. Change any driver and revenue, margin, cash, runway, and valuation all move together.

What do I get for $250?

The full interactive model plus an editable Excel version, a documented methodology, and board-ready base/bull/bear scenarios. Want it wired to your real numbers and chart of accounts? That's a bespoke engagement — see the Enterprise page.

Is this financial advice?

No. It's an educational decision-support model built to your assumptions — not financial, investment, tax, or legal advice.

Other Company Models

The Crimson Bench · Est. 2002 · Founded in New York City

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