10 Types of Financial Models and How to Pick the Right One

Understanding the 10 Key Types of Financial Models

Every business eventually needs a financial model, but not the same one. A startup raising a first round needs a different model from a private equity firm structuring a buyout. A finance team planning next year needs something different again.

Choosing the wrong type wastes weeks and can mislead the decision it was built to support. The skill is not knowing every formula. It is knowing which model answers the question on the table.

This guide covers the 10 most common types. Each section states the question the model answers, who builds it, and what to watch for. A decision table at the end maps common situations to the models that fit.

The 10 types at a glance

Models fall into two groups. Internal models serve people inside the company, such as budgets and forecasts. External models show investors, lenders or buyers what a business is worth, or whether a deal works.

#	Model	Question it answers	Typical user	Complexity
1	Three-statement	How do profit, assets and cash move together?	Nearly every business	Low to medium
2	DCF	What is the business worth today?	Investors, sellers	Medium
3	Merger and acquisition	Does this deal add value per share?	Acquirers, bankers	High
4	IPO	What is the company worth at listing?	Bankers, leadership	High
5	Leveraged buyout	Can debt fund this purchase and still earn a return?	Private equity	High
6	Sum-of-the-parts	What is each business unit worth?	Analysts, groups	Medium
7	Consolidation	What do group results look like as one entity?	Multi-entity groups	Medium
8	Budget	How much will the business earn and spend next year?	Finance teams	Low to medium
9	Forecasting	Is the business on track against plan?	Finance teams	Medium
10	Option pricing	What is this option worth?	Risk and derivatives teams	High

1. Three-statement model

The three-statement model is the foundation. It links the income statement, balance sheet and cash flow statement, so one changed assumption flows through all three.

• Question: how do profit, assets and cash move together?
• Typical user: almost every business, from startup to listed company.
• Inputs and output: growth, margins, working capital and financing assumptions produce projected statements.
• Watch for: a balance sheet that does not balance. Fix that check before building anything on top.

Most other models on this list reuse its output. A startup should build this one first. Oak’s guide to the integrated three-statement model shows how the statements connect line by line.

2. Discounted cash flow (DCF) model

A DCF model estimates what a business is worth today. It starts from the three-statement forecast, projects free cash flow, and discounts those flows back to the present.

• Question: what is the business worth, based on the cash it will generate?
• Typical user: investors, sellers, equity analysts.
• Inputs and output: growth, margins, capital spending, a discount rate and terminal value produce an enterprise value.
• Watch for: the terminal value. It often makes up most of the total. Small changes in the discount rate or terminal growth rate move the answer sharply.

Two faster alternatives sit in the same family.

• Comparable company analysis values a business using multiples, such as EV/EBITDA, from similar public companies.
• Precedent transaction analysis uses prices paid in past acquisitions. It often gives a higher value, because buyers pay a premium for control.

Neither discounts future cash flows. Both work well as a sanity check on a DCF. Oak offers a ready-made DCF and company valuation model.

3. Merger and acquisition (M&A) model

An M&A model tests whether combining two companies makes financial sense.

• Question: does the deal add value per share?
• Typical user: acquirers, corporate development teams and investment bankers.
• Inputs and output: combined financials, price, financing and synergies produce a pro forma balance sheet. The result shows earnings per share accretion or dilution.
• Watch for: optimistic synergies and missing integration costs. Both are assumptions, and both tend to be overstated.

This model is complex enough that most businesses bring in a CFO or a specialist to build it.

4. Initial public offering (IPO) model

An IPO model estimates what a company will be worth once it lists on a stock exchange.

• Question: what price range will the market support at listing?
• Typical user: investment bankers and company leadership.
• Inputs and output: comparable company multiples, growth forecasts, key ratios and cash flow projections produce a valuation range.
• Watch for: the IPO discount. Bankers price shares slightly below fair value so the stock trades well afterward.

Few small and mid-sized businesses ever need one. It matters mainly to companies preparing for a listing.

5. Leveraged buyout (LBO) model

An LBO model tests whether debt can fund most of a purchase. The company’s own cash flow must then repay that debt.

• Question: can a debt-funded purchase still deliver the return investors need?
• Typical user: private equity firms and their advisers.
• Inputs and output: price, debt layers, interest rates, cash flows and an exit multiple. The outputs are internal rate of return and multiple on invested capital.
• Watch for: circular references. Interest depends on the debt balance, and the balance depends on cash left after interest.

Small changes in the exit multiple or holding period can swing the projected return sharply. Good LBO models therefore include sensitivity tables. Oak’s custom financial models include LBO structures.

6. Sum-of-the-parts model

A sum-of-the-parts model values a business with several distinct divisions. Each unit gets its own valuation, using the method that suits it best.

• Question: what is each unit worth, and what is the group worth?
• Typical user: analysts and investors studying diversified groups.
• Inputs and output: a valuation per unit, plus non-operating assets, minus liabilities, produces a net asset value.
• Watch for: unit-level assumptions that quietly contradict each other.

The model shows which units create value and which drag it down. That helps decide where to invest and where to restructure.

7. Consolidation model

A consolidation model combines several business units into one financial picture. Each unit usually has its own tab, and a consolidation tab adds them together.

• Question: what do the group’s results look like as a single entity?
• Typical user: multi-entity groups and their finance teams.
• Inputs and output: each unit’s statements produce one set of group statements.
• Watch for: intercompany transactions. Sales between group companies must be removed, or group revenue is counted twice.

Sum-of-the-parts values the units separately. Consolidation reports them together.

8. Budget model

A budget model sets spending and earning targets for the coming year. It is built by finance and planning teams and kept inside the company.

• Question: how much will the business earn and spend next year?
• Typical user: finance teams and department heads.
• Inputs and output: headcount, pricing, volumes and cost plans produce a monthly or quarterly income statement.
• Watch for: a budget set once and never revisited. Compare it with actual results every month.

Most of the detail sits in the income statement. Monthly or quarterly columns make it easier to track spending against plan.

9. Forecasting model

A forecasting model projects where the business is heading, using historical data. It works alongside the budget. The budget sets the target, and the forecast tests whether the business will hit it.

• Question: is the business on track, and by how much might it miss?
• Typical user: finance teams and leadership.
• Inputs and output: past results and current trends produce updated projections.
• Watch for: choosing a method that does not match the business.

Three methods cover most work.

• Straight-line: applies a historical growth rate forward. It suits stable businesses.
• Moving average: smooths short-term swings, using a window of three or five periods. It suits seasonal businesses.
• Simple linear regression: links one variable to another, such as marketing spend to revenue.

Pairing budget and forecast gives an early warning when reality drifts from the plan.

10. Option pricing model

An option pricing model values derivatives using fixed mathematical formulas. It relies less on subjective assumptions than the other nine.

• Question: what is this option worth?
• Typical user: risk teams, derivatives desks and analysts valuing stock options.
• Inputs and output: asset price, strike price, time, volatility and interest rate produce a fair value.
• Watch for: using the wrong method for the option type.

Black-Scholes fits European options with a single exercise date. The binomial model handles American options that can be exercised early. Monte Carlo simulation runs thousands of random price paths and suits options whose payoff depends on the path taken.

Industry-specific models

Many businesses need a sector model on top of these ten. The structure usually starts from a three-statement base. Sector drivers then replace the generic ones.

• SaaS: recurring revenue, churn and customer acquisition cost.
• Real estate: rent, occupancy and property values.
• Oil and gas: reserves and production decline.

A sector model is rarely a separate type. It is a three-statement model with the right drivers.

How the models connect

The three-statement model sits at the center. A DCF takes free cash flow from it. A budget and a forecast reuse its structure. M&A and LBO models stack deal assumptions on top of it.

This is why errors in the base model spread quickly. A broken link in the three-statement model flows into every valuation built on it.

Which model does the business need?

Situation	Models that fit
Raising seed or growth capital	Three-statement, forecasting, DCF, sensitivity analysis
Planning next year	Budget and forecasting
Selling the business	Three-statement, DCF, comparable and precedent analysis
Buying a competitor	M&A model, plus a DCF of the target
Running several subsidiaries	Consolidation, and sum-of-the-parts for valuation
Preparing a stock market listing	IPO model with comparable company analysis
Backing a debt-funded buyout	LBO model
Valuing options or warrants	Option pricing

Most small and mid-sized businesses need only the first two rows. The specialized models matter once institutional capital or a large transaction enters the picture.

Frequently Asked Questions

Which financial model should a startup build first?

The three-statement model, almost always. Every other model, including a DCF for fundraising or a budget for planning, builds on it.

What is the difference between a DCF and comparable company analysis?

A DCF values a business from its own projected cash flows. Comparable analysis values it from what similar public companies trade at. Comparable analysis is faster, but it ignores the time value of money.

What is the difference between comparable analysis and precedent transactions?

Comparable analysis uses current trading multiples of public companies. Precedent analysis uses prices paid in past acquisitions. Precedents often include a control premium, so they usually give a higher value.

Do all businesses need an LBO or M&A model?

No. These are specialist models for private equity, investment banking and active acquirers. Most SMEs never build one.

What is the difference between a budget and a forecast?

A budget sets the target for a period. A forecast updates the projection as results arrive. Comparing the two shows where plan and reality diverge.

Can one workbook hold several model types?

Yes. A single workbook can hold a three-statement base with a DCF, a budget and sensitivity tables on top. Each type should stay on its own clearly labeled tabs.

Conclusion

The ten models solve ten different problems. The mistake is not building the wrong formulas. It is answering a question nobody asked.

Start from the decision, then pick the lightest model that can support it. A tidy three-statement model with honest assumptions beats an elaborate LBO built on guesses.

To build one, read Oak’s guide to financial modeling in Excel. To weigh what modeling can and cannot do, see the advantages and disadvantages of financial modeling.

Oak Business Consultant builds models matched to the decision, from fundraising valuations to acquisition and budget models. Explore Oak’s financial modeling services to get started.