Pro Forma vs Budget, Forecast and Projection

The standard spelling is pro forma: two words, with no hyphen. It is a Latin phrase meaning roughly as a matter of form or for the sake of form. In finance, it describes information prepared on an assumed, adjusted or illustrative basis.

Write, for example, “the acquisition is reflected in the pro forma income statement” or “management prepared the statements on a pro forma basis”. Capitalise the phrase only where normal title-style rules require it.

File names, database fields and URLs sometimes collapse the phrase into proforma because spaces are inconvenient. That technical convention does not change the preferred wording in reader-facing copy. Likewise, preserve a company name, product label or official document title if it deliberately uses another spelling.

Consistency matters more than repeatedly explaining the variant. Use pro forma throughout the model, supporting documentation and presentation, then define the basis clearly. The spelling alone tells a reader very little about the adjustments being made. For the substance behind the label, see the guide to pro forma financial statements and browse the site's pro forma resources.

No. A budget is an approved plan or target for a period; a pro forma is financial information prepared on an assumed, adjusted or hypothetical basis. A budget can supply the assumptions for a pro forma model, but the two terms describe different things.

Suppose a company approves annual revenue of £12 million and operating costs of £9 million. Those figures form its budget. If it then considers buying a business halfway through the year, it might prepare pro forma statements as though the acquisition had occurred at the beginning of the period. The pro forma would combine the companies and reflect financing, transaction-specific adjustments and the stated timing assumption. It would not automatically become the approved budget.

A model may contain both views:

Budget EBITDA = Budget revenue - Budget operating costs
Pro forma EBITDA = Reported EBITDA + Defined pro forma adjustments

Label the cases separately and document who approved each assumption. That prevents an illustrative transaction case from being mistaken for a management commitment. Use budget-versus-actual analysis to monitor the approved plan, and the pro forma financial statements guide to structure adjusted statements.

No. A template is a reusable structure; a pro forma is the populated financial analysis or presentation produced for a defined purpose. A template may help you build a pro forma, but an empty workbook is not itself a completed pro forma.

Think of the distinction as container versus content:

• the template provides sheets, headings, formulas and formatting conventions;
• the pro forma contains company-specific assumptions, adjustments and outputs;
• the supporting notes explain the basis, period and limitations of those outputs.

For example, a three-statement template might contain an income statement, balance sheet, cash-flow statement and supporting schedules. To turn it into an acquisition pro forma, the modeller would add the buyer and target data, align accounting periods, incorporate the purchase price and financing, and show the resulting adjustments. The finished analysis should identify which figures are historical, forecast or pro forma.

A useful template can reduce setup time, but it cannot determine whether an adjustment is commercially or technically appropriate. Before using one, check that it supports the relevant time periods, accounting presentation, transaction logic and review controls. Remove unused sections rather than leaving irrelevant schedules in the deliverable.

The best test is repeatability: the template should be capable of supporting another company or scenario, while the pro forma should clearly describe this particular company, transaction or assumption set. Browse the template library for reusable structures and the pro forma collection for examples organised around pro forma use cases.

No. Pro forma and format are not synonyms. A format describes how information is arranged or presented; pro forma describes the basis on which the information was prepared.

A pro forma may use many formats: a three-statement model, a short management schedule, a transaction bridge, a spreadsheet or a presentation table. Conversely, a standard financial-statement format can contain historical actuals, a budget, a forecast or pro forma figures.

For example, management might request this format:

Reported revenue
+ Acquisition adjustment
+ Accounting-policy alignment
= Pro forma revenue

The bridge is the format. The assumption that the acquisition is treated as though it had occurred earlier is the pro forma basis. Changing the font, layout or column order changes the format, but not the underlying basis. Changing the adjustment logic changes the pro forma figures even if the visual format remains identical.

In practice, define both. State the pro forma basis in a note, then choose a format that lets a reviewer trace reported amounts, individual adjustments and the resulting total. Avoid using “pro forma” merely to mean a standard form or blank layout in financial-modelling documentation. The pro forma financial statements guide shows how basis and presentation work together, while the template library provides reusable formats.

Pro forma means information prepared on an assumed, adjusted or illustrative basis. Pro rata means an amount allocated in proportion to a stated measure such as time, ownership or usage. The phrases are both Latin, but they perform entirely different jobs.

Suppose annual rent is £120,000 and a tenant occupies a property for three months. The pro rata rent is:

£120,000 × 3 / 12 = £30,000

Now suppose a company acquires that property business halfway through the year. A pro forma income statement might present results as if ownership had begun on the first day of the year. The model may use a pro rata calculation to estimate part-year expenses within that pro forma presentation, but one term does not replace the other.

Always state the allocation driver when using pro rata: days, months, shares, floor area or another measurable basis. Always state the hypothetical or adjustment basis when using pro forma: transaction date, financing structure, accounting alignment and any permitted exclusions.

A quick memory aid is: pro rata allocates; pro forma illustrates. The pro forma financial statements guide explains illustrative adjustments, and the wider pro forma resource collection covers models in which proportional calculations may appear.

Actual financials record results that occurred for the reporting entity and period. Pro forma financials recast those figures using stated assumptions or adjustments—often to illustrate a transaction, changed capital structure or alternative operating basis.

Assume reported EBITDA is £8 million. Management wants to show the effect of a business acquired after year-end:

Reported EBITDA                         £8.0m
Add: target EBITDA for aligned period   £1.6m
Less: duplicated central costs         (£0.2m)
Pro forma EBITDA                        £9.4m

The £8.0 million remains the actual result. The £9.4 million is meaningful only with the adjustment definitions, source periods and calculation methodology. It must not be presented as though it were recorded performance.

Good models keep actual, adjustment and pro forma columns separate. They also distinguish mechanical transaction adjustments from subjective assumptions such as future synergies. Reconcile totals, preserve source references and disclose any inconsistent accounting policies or periods. If actual performance later becomes available, compare it with the earlier assumptions rather than overwriting the original case.

Use budget-versus-actual analysis for performance tracking. For the specific construction and disclosure of adjusted figures, see the pro forma financial statements guide.

A forecast is management's current estimate of what is expected to happen. A pro forma shows financial information on a specified assumed or adjusted basis. They often overlap, but neither term automatically implies the other.

Suppose management expects next year's revenue to grow 5%. That is a forecast assumption. If the company is considering a new financing structure, it may add pro forma debt, interest and shares to show the effect on earnings and cash flow. The operating forecast and the pro forma capital-structure adjustments can coexist in one model.

Forecast revenue = Current revenue × 1.05
Pro forma net income = Forecast operating profit - Pro forma interest - tax

Label the layers clearly. The base forecast should capture the latest expected trading outcome; the pro forma case should identify the event or hypothetical basis being overlaid. Do not describe an optimistic what-if case as “the forecast” unless it genuinely represents management's best current estimate.

For choosing and supporting forecast assumptions, see financial forecasting methods. Use scenario versus sensitivity analysis to distinguish coherent alternative cases from isolated variable changes, and the pro forma guide for adjustment presentation.

Both approaches improve comparison, but they adjust for different reasons. Pro forma figures show results on an assumed or transaction-adjusted basis. Like-for-like figures aim to compare periods on a consistent operational perimeter, often excluding changes such as acquisitions, disposals, openings, closures or currency movements.

Consider a group with prior-year revenue of £100 million that acquires a company contributing £20 million. Current-year reported revenue is £126 million. A pro forma comparison might add the target's prior-period revenue to show a £120 million comparable base, implying 5% growth:

£126m / (£100m + £20m) - 1 = 5%

A like-for-like measure might instead exclude the acquired business from current-year revenue and compare only the continuing legacy operations. The exact result depends on the definitions and available data. Thus, pro forma is not automatically like-for-like, and different companies may construct like-for-like measures differently.

For either measure, disclose the perimeter, periods, currency basis and treatment of acquisitions, disposals and discontinued operations. Provide a bridge from reported figures and avoid mixing scope adjustments with unrelated cost exclusions. A reader should be able to reproduce the comparison from the stated inputs.

The pro forma financial statements guide explains transaction adjustments, while financial forecasting methods can help maintain consistent operating drivers across comparable cases.

A financial projection estimates future results from a stated set of assumptions. A pro forma presents financial information on an assumed or adjusted basis. A projection can therefore be pro forma, but pro forma information is not always a projection.

The practical distinction is emphasis:

• a projection focuses on future periods and assumption-driven outcomes;
• a pro forma focuses on the basis or event being illustrated;
• a historical period can be recast pro forma, but it cannot become a future projection.

For example, a five-year model of revenue, costs and cash flow is a financial projection. If the model also assumes that a planned acquisition occurred on day one, the acquisition-adjusted case may be described as a pro forma projection. Separately, a company might present last year's income statement as though the acquisition had already occurred; that is pro forma information, not a future projection.

Projected units = Prior-year units × (1 + growth rate)
Projected revenue = Projected units × Assumed price
Pro forma EPS = Pro forma net income / Pro forma diluted shares

In a model, use a clear case hierarchy such as Actual, Base projection, Downside projection and Pro forma transaction case. Record the source and status of every assumption. The terminology used in formal reporting can depend on the applicable accounting, regulatory or assurance framework, so match the final labels and disclosures to that context.

See financial forecasting methods for projection techniques, scenario versus sensitivity analysis for uncertainty, and pro forma financial statements for transaction-adjusted presentation.

Prospective financial statements are forward-looking statements prepared for future periods. Depending on the reporting framework, they may include a forecast based on expected conditions, a projection based on hypothetical assumptions, or another defined form of prospective information. Pro forma financial information instead describes figures prepared on an adjusted or assumed basis and may cover either historical or future periods.

A transaction model may contain both. Historical income statements might be recast pro forma to align the buyer and target, while prospective statements forecast their combined revenue, costs, financing and cash flow for the next three years. The future statements may also be labelled pro forma if they specifically reflect the assumed transaction basis—but that label does not remove the need to describe the prospective assumptions.

Keep the model layers traceable:

1. preserve historical reported figures;
2. show pro forma adjustments separately;
3. build forward-looking operating assumptions;
4. identify whether each case is expected or hypothetical.

Terminology and required disclosures vary by jurisdiction and engagement, particularly when information is published, filed or assured. Confirm the applicable framework instead of treating the terms as universally interchangeable. For modelling techniques, use financial forecasting methods; for recasting transactions, use the pro forma financial statements guide; and for alternative assumption sets, see scenario versus sensitivity analysis.