Finance notes · cash through capital

Business Finance Playbook

How I explain the money side to founders and operators: cash, margins, funding, risk, taxes, and the KPIs that tell you if you are building something durable or just busy.

Author: Linh Truong, MA (Harvard), MBA Web: LinhTruong.com Email: Linh@Alumni.Harvard.edu Updated: May 2026

00Executive Summary

Accounting is backward-looking; finance is the set of choices you make with that picture. I bucket it in five moves: (1) Cash — never run out. (2) Profitability — earn more than you spend at the unit level. (3) Capital — fund growth without giving away the farm. (4) Risk — survive what you did not model. (5) Allocation — send the next dollar where it earns the most.

Survival rule≥ 6 moMinimum cash runway at all times
Gross margin> 40%Threshold for scalable models
CCC target< 30 dCash conversion cycle
Debt/EBITDA< 3.0×Safe leverage ceiling for SMBs

01Contents

02The Finance Operating System

Money moves in, through, and out; each choice changes tomorrow’s room to maneuver. The five pillars below backstop each other—if you starve one long enough, the rest start to wobble.

Figure 2.1
The Five Pillars of Business Finance
FINANCE OPERATING SYSTEM CASH Liquidity · Runway PROFIT Unit · Margins CAPITAL Funding · Mix RISK Insurance · Hedge ALLOCATION ROIC priorities
Cash protects against failure Profit funds growth from within Capital extends the timeline Risk preserves what you built Allocation compounds returns
RULE 1 — CASH

You go bankrupt when you run out of cash, not profit

Profitable businesses fail every day because receivables outpace payables. Track cash runway weekly. Build a 13-week rolling cash forecast. Maintain a credit facility you don't need.

RULE 2 — PROFIT

Unit economics decide everything

If a single transaction doesn't generate positive contribution margin, scale makes losses bigger, not smaller. Fix unit economics before you raise capital or hire reps.

RULE 3 — CAPITAL

The cheapest capital is the customer's

Pre-payments, deposits, and subscriptions beat both debt and equity. Then debt (tax-deductible). Then equity (most expensive — you give up forever).

RULE 4 — RISK

Hedge what could end you, not what bothers you

Map the 5 risks that could kill the company (customer concentration, FX, key person, regulatory, cyber). Buy insurance or diversify only against those.

03The Three Financial Statements — How They Connect

The P&L, balance sheet, and cash flow statement are the same business in three cuts. Once the links feel obvious, you can stress-test almost any decision without guessing.

Figure 3.1
The Three-Statement Linkage Map
INCOME STATEMENT Performance over period Revenue1,000 – COGS(400) = Gross Profit600 – Opex(350) = EBIT250 – Interest(30) – Tax(55) = Net Income165 BALANCE SHEET Position at point in time ASSETS Cash215 Receivables180 Inventory120 PP&E500 LIABILITIES + EQUITY Payables110 Debt300 Equity605 Retained Earnings+165 CASH FLOW Cash movement over period Operating Net Income165 + D&A, ΔWC75 = CFO240 Investing CapEx(120) Financing Debt repaid(40) Dividends(20) Δ Cash+60 Net income → Retained earnings Net income flows into CFO Cash on BS

Key linkages every operator must memorise

LinkageFrom → ToWhy it matters
Net Income → Retained EarningsIS bottom line → BS equityProfit grows the owner's claim on the business.
Net Income → CFOIS → CFS top lineEarnings are the starting point of cash generation.
Δ Working Capital → CFOBS changes → CFSGrowth ties up cash in AR and inventory.
CapEx → PP&E / DepreciationCFS investing → BS asset → IS expenseToday's investment becomes tomorrow's expense.
Debt → Interest → CashBS liability → IS expense → CFS financingLeverage cost shows in three places at once.

04Cash Flow & Runway — The Survival Layer

Cash pays payroll. I read the P&L for story, the cash forecast for survival—same idea as watching the fuel gauge, not only the speed. What follows is the baseline discipline I ask for on most engagements.

Figure 4.1
Cash Flow Engine — Inputs, Buffer, and Outputs
Customer Receipts Deposits / Subscriptions Debt / Equity Inflow Asset Sales / Refunds CASH RESERVE Target: ≥ 6 months Opex Plus undrawn credit line "Cash buffer + revolver = runway" Payroll & Suppliers Rent · Utilities · Tax CapEx · Inventory Debt Service · Dividends

The runway formula

Runway (months) = Cash on Hand ÷ Net Monthly Burn

Where Net Burn = Cash Out – Cash In (in a steady-state month). If you're profitable, runway is effectively infinite — but model a 30% revenue drop and recompute.

The 13-week cash forecast

Build a rolling spreadsheet with weekly rows for inflows (by customer, with probability) and outflows (by category, by due date). Update every Friday. This single artifact prevents 90% of cash crises.

Cash buffer policy

  • Stage 1 (pre-PMF): 12 mo runway, 100% in cash.
  • Stage 2 (scaling): 6 mo + revolver, 70% cash / 30% T-bills.
  • Stage 3 (mature): 3 mo + revolver + working line of credit.
Warning — the profit-cash gap: A company growing 50% YoY with 60-day receivables and 30-day payables consumes more cash the faster it grows. This is the #1 reason "successful" SMBs collapse. Always model cash for the next 12 months, not just P&L.

05Working Capital & the Cash Conversion Cycle

Working capital is operational cash trapped between paying suppliers and getting paid by customers. The Cash Conversion Cycle (CCC) measures how many days each dollar of revenue is locked up before it returns. Shortening CCC is free funding.

Figure 5.1
Cash Conversion Cycle — A Day-by-Day View
DAYS INVENTORY OUTSTANDING (DIO) Buy raw materials → finished goods → sell DAYS SALES OUTSTANDING (DSO) Sell on credit → customer pays DAYS PAYABLE OUTSTANDING (DPO) Buy on credit → pay supplier (offsets the cycle) CCC = DIO + DSO − DPO Day 0 · Supplier invoice Sale Customer payment
LeverActionImpactTrade-off
Shorten DSOInvoice on delivery; offer 2/10 net 30; auto-debit; depositsEach day shaved ≈ 1 day's revenue freedDiscounts cost margin; pushy collections cost customers
Shorten DIOJust-in-time, drop-ship, ABC inventory, vendor-managedReleases cash + reduces obsolescenceHigher stock-out risk; supplier dependence
Lengthen DPONegotiate net-60/90, use cards with float, supply-chain financeFree 30–60 day financingSupplier relationships, lost early-pay discounts
Switch modelPre-pay, subscription, deposit, milestone billingNegative working capital — customer funds growthHigher acquisition friction
The negative working capital prize: Amazon, Costco, and Dell operate with negative CCC — customers pay before suppliers do. If you can engineer this, growth literally generates cash instead of consuming it.

06Unit Economics & Pricing Strategy

Before scaling, answer one question: does a single unit of sale create or destroy value? Unit economics strip out fixed cost noise and reveal the truth.

Figure 6.1
From Price to Profit — The Unit Economics Waterfall
Price $100 – Variable COGS –$30 Gross Profit $70 70% GM – CAC / order –$20 Contribution $50 LTV (× 5 orders) $250 LTV / CAC = 12.5×

The 5 numbers that decide your business

ACV / AOVAverage revenue per customer or order
Gross margin %(Price − Variable COGS) ÷ Price
CACCustomer Acquisition Cost (paid + organic + sales salaries)
LTVGross profit × purchase frequency × retention years
PaybackMonths for CAC to be recouped via gross profit

Healthy benchmarks

  • LTV / CAC ≥ 3× — minimum acceptable; ≥ 5× is strong.
  • CAC payback < 12 months for SaaS; < 6 months for e-commerce.
  • Gross margin: 70%+ software, 40%+ services, 30%+ retail, 15%+ distribution.
  • Net Revenue Retention > 100% means existing customers grow without new acquisition.
  • Magic Number > 0.75 — new ARR ÷ S&M spend (SaaS efficiency).

Pricing strategies that compound

StrategyBest forHow it worksRisk
Cost-plusCommodities, contractsAdd target margin to costLeaves money on the table
Value-basedB2B, SaaS, professional servicesPrice = % of customer's ROIHard to quantify value
Tiered / Good-Better-BestSaaS, services3 tiers anchor the middleRequires real differentiation
Usage / ConsumptionAPI, cloud, telecomPay for what you useRevenue volatility
PenetrationNetwork effects marketsLow price to gain share, then raiseHard to raise prices later
Premium / SkimBrand, innovationHigh price signals qualityLimits TAM

07Budgeting, Forecasting & Scenario Planning

A budget is a hypothesis. A forecast is the updated hypothesis. The cycle is: plan → execute → measure variance → re-forecast → reallocate. Run it monthly.

Figure 7.1
The Annual Operating Plan Cycle (AOP)
PLANAnnual targets BUDGETAllocate $ EXECUTEOperate CLOSEMonth-end VARIANCEActual vs plan FORECASTReforecast

Three forecasts, every quarter

  • Base case: the plan you committed to.
  • Upside (+20%): what investment unlocks if you outperform.
  • Downside (–30%): the cost cuts you'd make if revenue falls. Pre-decide trigger points.

Zero-Based Budgeting (ZBB)

Every line starts at zero each year. Every owner justifies their ask. Reduces "last year + 5%" sprawl. Pair with driver-based budgeting: tie costs to volume drivers (headcount per $1M revenue, infrastructure per active user) so the model self-adjusts.

Variance analysis discipline

Variance typeFormulaWhat it tells you
Price variance(Actual price − Budget price) × Actual volumeDid pricing power change?
Volume variance(Actual volume − Budget volume) × Budget priceDemand vs forecast accuracy
Mix varianceShift between product lines at different marginsAre you selling the right things?
Efficiency varianceActual hours/units − Standard × cost rateOperational productivity

08Capital Structure & Funding Options

Different stages need different capital. Choosing wrong starves growth or surrenders ownership. Use the capital stack hierarchy: free cash → revenue → debt → equity, in that order of preference, because each is more expensive than the last.

Figure 8.1
The Funding Staircase by Stage & Cost
Bootstrapping Idea · MVP Friends & Family / Grants Pre-seed Angels · Revenue-based Seed Venture Capital Series A–C Private Equity · Venture Debt Growth IPO / M&A Mature ↑ Cost of Capital ↑ Maturity / Risk transferred
SourceTypical costDilutionBest whenWatch out for
Operating cash flow~0%NoneAlways — first optionSlow growth
Customer pre-paymentsNegative (discount cost)NoneRecurring / contract modelsRefund risk; deferred liability
Trade credit (suppliers)0–2% (lost discount)NoneStable supply baseStretching hurts terms
Bank line of creditPrime + 1–4%NoneBridging working capitalCovenants, personal guarantees
Term loan / SBA5–10%NoneCapEx, acquisitionsCollateral, slow underwriting
Asset-based lending6–12%NoneAR/Inventory-heavyConcentration limits
Revenue-based financing1.3–1.7× capNonePredictable recurring revLower flexibility, fast repay
Venture debt9–13% + warrantsLowExtending runway post-equityMaterial adverse change clauses
Angel / Seed equity~25% IRR target10–20%Pre-revenue innovationCap-table sprawl
Venture capital~30%+ IRR target15–25% per roundWinner-take-most marketsLiquidation preferences, board control
Private equity~20% IRR + leverageMajorityMature, EBITDA-positiveLoss of independence
The WACC equation: Weighted Average Cost of Capital = (E/V × Re) + (D/V × Rd × (1−T)). Every project must earn more than WACC or it destroys value, no matter how exciting.

09The Financial KPI Dashboard

You can't manage what you don't measure — but measuring everything creates noise. The matrix below is the minimum viable dashboard. Review weekly with leadership; monthly with the board.

Figure 9.1
The Four-Quadrant KPI Map
FINANCIAL OPERATIONAL LIQUIDITY GROWTH Liquidity & Solvency • Current Ratio (> 1.5) • Quick Ratio (> 1.0) • Cash Runway (months) • Debt / EBITDA (< 3×) • Interest Coverage (> 4×) Working Capital Efficiency • DSO · DIO · DPO • Cash Conversion Cycle • Inventory Turns • AR Aging (% > 60 days) • Free Cash Flow Conversion Profitability & Returns • Gross / Operating / Net Margin • EBITDA Margin • ROIC, ROE, ROA • Rule of 40 (Growth + Margin ≥ 40) • Contribution Margin per Product Growth & Customer • Revenue Growth YoY / MoM • ARR / MRR & NRR • LTV / CAC, Payback • Customer & Logo Churn • Pipeline Coverage (3–4×)

The 12 KPIs I default to with operating teams

KPIFormulaHealthy targetWhat it warns of
Gross Margin %(Revenue − COGS) ÷ RevenueSaaS > 70%; Retail > 30%Pricing power loss
EBITDA MarginEBITDA ÷ Revenue> 15% (industry-dep.)Operating drag
Operating Cash Flow MarginCFO ÷ Revenue> 10%Accrual-only profit
Free Cash FlowCFO − CapExPositive & growingNeed for outside funding
Current RatioCurrent Assets ÷ Current Liabilities1.5 – 3.0Short-term solvency
Quick Ratio(CA − Inventory) ÷ CL> 1.0Inventory-masked weakness
Debt-to-EquityTotal Debt ÷ Equity< 1.0 (industry-dep.)Over-leverage
Interest CoverageEBIT ÷ Interest> 4×Debt service stress
ROICNOPAT ÷ Invested Capital> WACC + 5%Capital being destroyed
CCCDIO + DSO − DPO< 30 daysCash trapped in WC
LTV / CACCustomer LTV ÷ CAC> 3×Growth burning cash
Rule of 40 (SaaS)Growth % + EBITDA %≥ 40Unsustainable trade-off

10Risk Management — Surviving What You Didn't Plan For

Financial risk management isn't about avoiding losses — it's about ensuring no single event can kill the company. Map risks by likelihood × impact, mitigate the top-right, accept the bottom-left, monitor the rest.

Figure 10.1
Risk Heat Map for SMB / Mid-Market
LIKELIHOOD → IMPACT → Customer concentration (>20%) Cyber breach FX exposure Key-person dependency Regulatory change Inflation in inputs Office disruption Supplier failure Employee turnover ACCEPT / MONITOR MITIGATE / TRANSFER AVOID / ELIMINATE
Risk typeCommon triggersMitigation
LiquidityAR concentration, seasonal cash gap, covenant breach13-week forecast, revolver, customer deposits
CreditBad debt from customersCredit checks, deposits, trade insurance, factoring
MarketFX, interest rates, commodity pricesNatural hedge, forwards, fixed-rate debt
OperationalSystem failure, key-person lossRedundancy, cross-training, business continuity plan
StrategicTech shift, competitor, regulationScenario planning, optionality, faster cycles
CyberPhishing, ransomware, data breachMFA, backups, cyber insurance, incident response
ComplianceTax filings, GDPR/CCPA, sanctionsCompliance calendar, external advisors, controls
The customer concentration trap: If any single customer is > 20% of revenue, you're not a business — you're a vendor. Diversification is a financial decision as much as a sales one.

11Tax Strategy — Legal, Boring, and Worth Millions

Tax is the largest controllable expense in most profitable businesses. Tax planning (legal structuring) compounds; tax preparation (filing) doesn't. Build the structure before you need it.

Entity choice matters

FormBest for
Sole prop / DBASolo, low revenue, simple
LLC (pass-through)Flexible, no double tax, liability shield
S-Corp electionProfitable LLC saving on SE tax
C-CorpReinvesting, raising VC, QSBS eligible
Holding co. structureMulti-entity, IP isolation, exit

The 7 levers in every tax plan

  • 1. Entity & jurisdiction — federal/state mix, holding-co.
  • 2. Deductions & credits — R&D, energy, hiring credits.
  • 3. Depreciation timing — Section 179, bonus depreciation.
  • 4. Compensation mix — salary vs distribution vs equity.
  • 5. Retirement & deferral — 401(k), SEP, defined-benefit.
  • 6. Loss harvesting — NOL carry-forward planning.
  • 7. Exit structure — QSBS, installment sale, ESOP.
The IRS doesn't reward optimism: Reserve quarterly estimated taxes the day they're earned. Treat tax liability as "not your money" the moment revenue is recognized. Cash crises from tax surprises are the most preventable kind.

12Capital Allocation — Where the Next Dollar Goes

Once cash is safe and a business is profitable, every additional dollar has an opportunity cost. The CFO's most important question is: where does the next dollar earn the highest risk-adjusted return?

Figure 12.1
The Capital Allocation Decision Tree
$1 of free cash Reinvest in business ROIC > WACC? Acquire (M&A) Synergy > premium? Pay down debt Rate > reinvest IRR? Return to owners Dividend / Buyback Product R&D Sales & Marketing Capacity / CapEx Talent & Ops

The hurdle-rate principle

Set a minimum return rate (hurdle) equal to WACC + risk premium for each project category. Reinvestment beats payouts only when projected IRR clears the hurdle and the project's risk fits the company's risk capacity.

Use of cashExpected returnReversible?When to favor
Organic reinvestment15–40% IRRPartiallyROIC > WACC, market growing
Acquisitions (M&A)10–25% IRR (post-synergy)NoStrategic gap, fragmented market
Debt repayment= After-tax debt rateYes (re-borrow)High leverage, rates rising
Share buyback= 1/PE earnings yieldMostlyStock undervalued, no better use
Dividend= shareholder optionHard to cutMature business, predictable cash
Hold as cash~T-bill rateYesUncertainty, M&A war chest

13Scaling the Finance Function

The finance team must scale ahead of the business, not behind it. The right structure at each stage prevents both over-hiring and operational gaps.

StageRevenue bandFinance teamSystemsCadence
Pre-revenue$0 – 1MFounder + outsourced bookkeeperQuickBooks/Xero · Stripe · Bill.comMonthly close, manual
Early traction$1 – 5M+ Fractional CFO+ Expensify · Brex · GustoMonthly close in 10 days
Scaling$5 – 25MController + 1–2 staff + Fractional CFONetSuite/Sage Intacct · Ramp · Mosaic5-day close, weekly KPIs
Growth$25 – 100MCFO + Controller + FP&A lead + AP/AR clerksERP + BI + Tax SW + Cap-table3-day close, board pack
Enterprise$100M+CFO org: FP&A, Controllership, Treasury, Tax, IRSAP/Oracle · Adaptive · TableauContinuous close, daily dashboards

Build vs Outsource

Outsource what's compliance (tax prep, payroll, audit). Build in-house what's competitive (FP&A, pricing, capital strategy).

Tech stack rule

Pick the ERP that fits 2× current scale, not 10×. Switching ERP is the single most disruptive finance project — avoid it twice.

Month-end close goal

From 30 days → 10 → 5 → 3. Each step requires automation, integrations, and discipline — not headcount.

14Controls, Audit & Compliance

Controls aren't bureaucracy — they're how you sleep at night. The principle is segregation of duties: no single person can both authorize and execute a financial transaction.

Figure 14.1
The Four-Eye Principle in Action
1 · REQUEST Requestor submits PO / expense 2 · APPROVE Manager / Budget owner approves 3 · EXECUTE AP / Treasury pays 4 · RECONCILE Controller reconciles & records Different person at every step. No exceptions above threshold. Approval matrix should be documented · thresholds reviewed annually · audit trail logged in system

The minimum control set

ControlPurposeFrequency
Bank reconciliationCatch theft, errors, missing transactionsDaily for high-volume; weekly otherwise
Approval matrixTiered $ thresholds with named approversReviewed annually
Vendor master reviewPrevent fake/duplicate vendorsQuarterly
Payroll change auditDetect ghost employees / pay changesEach payroll cycle
Expense policy & reviewPrevent leakage, ensure deductibilityMonthly sample audit
Financial statement reviewSanity check before publishingMonthly with CEO/Board
External audit / reviewIndependent verificationAnnual (review or full audit)
SOX-style ITGCsAccess, change management, backupsContinuous; tested quarterly
Fraud reality: 5% of revenue is lost to occupational fraud globally (ACFE). Median loss is ~$117K and takes 12+ months to detect. Tone at the top + segregation + reconciliation reduce both probability and dwell time.

15Valuation & Exit Strategy

Even if you never plan to sell, you should know what the business is worth — it informs capital decisions, equity comp, and option value. The three primary methods:

Figure 15.1
Three Lenses on Business Value
DCF (Intrinsic) Discounted Cash Flow • Project FCF for 5–10 yrs • Discount at WACC • Terminal value (Gordon) • Sum = Enterprise Value Best for: stable cash flows Weakest: early-stage / volatile Multiples (Relative) Comparable Companies / Transactions • EV / Revenue • EV / EBITDA • P/E ratio • Apply to your metrics Best for: active markets, M&A Weakest: unique businesses Asset-Based Book / Liquidation / Replacement • Sum tangible assets • Less liabilities • Adjust to fair value • = Net Asset Value Best for: real estate, hard-asset Weakest: services, IP-driven

Indicative multiples (2026 mid-market ranges)

IndustryEV / RevenueEV / EBITDANotes
SaaS (high growth)5 – 12×20 – 40×NRR > 110% drives premium
SaaS (low growth)2 – 4×8 – 15×Discounted for slowing
Professional services0.6 – 1.5×4 – 8×Recurring revenue boosts
E-commerce / DTC0.5 – 2×4 – 10×Brand & retention key
Manufacturing0.5 – 1.5×5 – 8×Asset-heavy
Distribution / Wholesale0.3 – 0.8×4 – 7×Working capital intensive
Healthcare services1 – 2×6 – 12×Regulatory premium

Exit options ranked by complexity

Exit typeTime to closeTypical multipleOwner outcome
Asset sale3–6 moLowerCash, walk away, tax-inefficient
Strategic acquisition6–12 moHighest (synergies)Cash + earnout, integration risk
Financial buyer (PE)6–12 moMidCash + rollover equity, second bite
ESOP6–18 moFair-marketTax-advantaged, culture preserved
Management buyout (MBO)6–12 moMidContinuity, financing intensive
IPO12–24 moPublic-marketLiquidity over time, reporting burden
Hold & dividendForevern/aOptionality preserved

16The 90-Day Action Roadmap

Here is a 90-day install order that matches this doc—take it in sequence if you can; skip only what you already have wired.

Figure 16.1
Implementation Timeline by Workstream
DAYS 1–30 · DIAGNOSE DAYS 31–60 · INSTALL DAYS 61–90 · OPTIMIZE CASH Build 13-week forecast · open revolver Daily cash dashboard · 6 mo buffer Sweep accounts · T-bills UNIT ECON Compute LTV/CAC by segment Pricing review · kill loss-leaders A/B price tests live WC / CCC Measure DSO/DIO/DPO baseline Auto-invoice · payment portal Renegotiate supplier terms FP&A Build 3-statement model Monthly close to 10 days Rolling forecast + scenarios RISK Risk register · top 10 risks Insurance audit · cyber + D&O BCP / DR plan tested CONTROLS Approval matrix · SoD review Bank recon · vendor master clean External review / audit CAPITAL WACC calc · hurdle rate set Capital allocation framework Quarterly capital review

The 10 commandments — keep this on your wall

  • 1. Cash > profit. Always.
  • 2. Forecast 13 weeks every Friday.
  • 3. Fix unit economics before scaling.
  • 4. Set aside tax money the day revenue lands.
  • 5. Never let one customer exceed 20% of revenue.
  • 6. Cheapest capital first: customer → supplier → bank → equity.
  • 7. Every project must clear WACC + risk premium.
  • 8. Segregate duties — no exceptions.
  • 9. Reconcile bank balances weekly.
  • 10. Know your number — what makes the business worth selling.
ROIC, plainly: If you compound real returns on invested capital, the valuation tends to follow. None of that works without the boring weekly habits above—forecast, margins, working capital, controls.

17References

This playbook synthesizes standard corporate-finance practice, public accounting conventions, and widely taught operator frameworks. Use the list below for citations, syllabi, and deeper study—then confirm anything jurisdictional (tax, entity choice, GAAP/IFRS) with your CPA and counsel. Links are conveniences; prefer primary standards, textbooks, and regulator pages for formal work.

Financial literacy, statements, and analysis

  1. Berman, Karen, Joe Knight, and John Case. Financial Intelligence: A Manager’s Guide to Knowing What the Numbers Really Mean. 4th ed. Boston: Harvard Business Review Press, 2020. (P&L, balance sheet, cash flow intuition — aligns with Chapters 3–4.)
  2. Penman, Stephen H. Financial Statement Analysis and Security Valuation. 5th ed. New York: McGraw-Hill, 2013. (Rigorous linkages between statements and equity valuation.)
  3. Financial Accounting Standards Board (FASB). Accounting Standards Codification (ASC) — authoritative U.S. GAAP for recognition and measurement. https://asc.fasb.org

Corporate finance, WACC, and value creation

  1. Brealey, Richard A., Stewart C. Myers, and Franklin Allen. Principles of Corporate Finance. 13th ed. New York: McGraw-Hill, 2020. (Capital budgeting, WACC, capital structure fundamentals referenced in Chapters 8–9, 12, 15.)
  2. Modigliani, Franco, and Merton H. Miller. "The Cost of Capital, Corporation Finance and the Theory of Investment." American Economic Review 48, no. 3 (1958): 261–97. (Theoretical foundation for thinking about debt, equity, and firm value.)
  3. Damodaran, Aswath. Applied Corporate Finance. 4th ed. Hoboken, NJ: Wiley, 2015; plus ongoing teaching notes on cost of capital, DCF, and multiples. https://pages.stern.nyu.edu/~adamodar/
  4. Rappaport, Alfred. Creating Shareholder Value: A Guide for Managers and Investors. Revised ed. New York: Free Press, 1998. (Shareholder value, economic profit, and capital discipline — spirit of ROIC vs. WACC in Chapters 9 and 12.)

Valuation: DCF, multiples, and transactions

  1. Koller, Tim, Marc Goedhart, and David Wessels. Valuation: Measuring and Managing the Value of Companies. 7th ed. Hoboken, NJ: Wiley, 2020. (McKinsey-style DCF, multiples, and value-management framing — maps to Chapter 15.)
  2. Damodaran, Aswath. Investment Valuation: Tools and Techniques for Determining the Value of Any Asset. 3rd ed. Hoboken, NJ: Wiley, 2012.
  3. Pratt, Shannon P., and Roger J. Grabowski. Cost of Capital: Applications and Examples. 5th ed. Hoboken, NJ: Wiley, 2014. (Depth on discount rates and company-specific risk premia.)

Cash, liquidity, and working capital

  1. Ross, Stephen A., Randolph W. Westerfield, and Bradford D. Jordan. Fundamentals of Corporate Finance. 13th ed. New York: McGraw-Hill, 2021. (Net working capital, the operating and cash cycles, and short-term financing — technical companion to Chapters 4–5.)
  2. Association for Financial Professionals (AFP). Cash forecasting and liquidity management practice standards — useful professional context for rolling cash forecasts. https://www.afponline.org/

Budgeting, forecasting, and variance analysis

  1. Pyhrr, Peter A. Zero-Base Budgeting: A Practical Management Tool for Evaluating Expenses. New York: Wiley, 1973. (Origins of zero-based budgeting; cited conceptually in Chapter 7.)
  2. Horngren, Datar, and Rajan. Cost Accounting: A Managerial Emphasis. 17th ed. Pearson. (Standard variance decomposition — price, volume, mix, efficiency in Chapter 7.)
  3. Kahneman, Daniel, and Amos Tversky. "Judgment Under Uncertainty: Heuristics and Biases." Science 185, no. 4157 (1974): 1124–31. (Behavioral background for scenario planning and upside/downside forecasts.)

SaaS and subscription economics (metrics in Chapters 6 & 9)

  1. Skok, David. "SaaS Metrics 2.0 — A Guide to Measuring and Improving What Matters." For Entrepreneurs (blog), 2014. https://www.forentrepreneurs.com/saas-metrics-2/
  2. Feld, Brad. "The Rule of 40% For a Healthy SaaS Company." Feld Thoughts, 2015. https://feld.com/archives/2015/02/rule-40-healthy-saas-company/
  3. Bessemer Venture Partners. State of the Cloud (annual SaaS/cloud benchmarks). https://www.bvp.com/state-of-the-cloud
  4. York, Rory. "Magic Number for SaaS — How Much Revenue Do You Create for Each $1 Spent on Sales and Marketing?" Scale Venture Partners / Medium, 2009 (metric widely adopted as sales efficiency “Magic Number”). Search title for the author’s article; formula appears in many investor templates.
  5. Sacks, David. "The Burn Multiple." Essay (2020) on net burn relative to net new ARR; retrieve the author’s version when citing formally.

Funding, venture, and private markets

  1. Feld, Brad, and Jason Mendelson. Venture Deals: Be Smarter Than Your Lawyer and Venture Capitalist. 4th ed. Hoboken, NJ: Wiley, 2022. (Term sheets, rounds, governance — complements Chapter 8.)
  2. Metrick, Andrew, and Ayako Yasuda. Venture Capital and the Finance of Innovation. Hoboken, NJ: Wiley, 2010. (Economics of VC investing and fund mechanics.)
  3. National Venture Capital Association (NVCA). Model legal documents. https://nvca.org/resources/model-legal-documents/ (Educational templates; not a substitute for counsel.)

Risk, ERM, and internal control

  1. Committee of Sponsoring Organizations of the Treadway Commission (COSO). Enterprise Risk Management—Integrating with Strategy and Performance, 2017. https://www.coso.org/Pages/erm.aspx (Likelihood × impact heat maps — Chapter 10.)
  2. COSO. Internal Control—Integrated Framework, 2013. https://www.coso.org/Pages/ic.aspx (Control environment, segregation of duties — Chapter 14.)
  3. Public Company Accounting Oversight Board (PCAOB). Auditing standards and guidance for external audits of issuers (context for audit vs. review). https://www.pcaobus.org/

Occupational fraud and forensic awareness

  1. Association of Certified Fraud Examiners (ACFE). Occupational Fraud 2024: A Report to the Nations (global fraud loss estimates, schemes, detection — cited in Chapter 14 callout). https://www.acfe.com/report-to-the-nations

U.S. tax and entity planning (educational — Chapter 11)

  1. Internal Revenue Service (IRS). Publication 17, Your Federal Income Tax (overview); Publication 535, Business Expenses; and forms/instructions for estimated taxes. https://www.irs.gov/forms-instructions
  2. Internal Revenue Code § 1202 — qualified small business stock (QSBS) rules referenced in exit/tax planning; read alongside Treasury regulations and your tax advisor. https://uscode.house.gov/

Capital allocation and management quality

  1. Thorndike, William N. The Outsiders: Eight Unconventional CEOs and Their Radically Rational Blueprint for Success. Boston: Harvard Business Review Press, 2012. (Reinvest vs. payout decisions and disciplined allocation — Chapter 12.)
  2. Mauboussin, Michael J. The Success Equation: Untangling Skill and Luck in Business and Investing. Boston: Harvard Business Review Press, 2012. (Process vs. outcome luck in performance measurement.)

Classic operating examples (negative working capital)

  1. Amazon.com historic cash-cycle case literature (inventory turns, payables, and negative CCC economics) — use Harvard Business School cases or SEC filings as primary sources if teaching the Chapter 5 callout in depth.