The Five Dimensions of Impact

A shared impact-management frame that asks five questions about any claimed impact: what changed, who experienced the change, how much changed, contribution, and risk.

Also known as: IMP five dimensions, Impact Frontiers five dimensions, What / Who / How Much / Contribution / Risk.

What It Is

The Five Dimensions of Impact are the field’s common vocabulary for specifying an impact claim before choosing metrics. They ask what outcome changed, who experienced the change, how much changed, how much the enterprise contributed beyond what would likely have happened anyway, and what could make the claim weaker than expected.

The frame came out of the Impact Management Project’s practitioner consensus work and is now stewarded by Impact Frontiers as part of the Impact Management Norms. It is plain enough for an investment committee memo and strict enough to stop a manager from hiding behind a single activity count.

For a family office, the Five Dimensions sit between Theory of Change and IRIS+ Metric Selection. The theory of change names the expected causal pathway. The Five Dimensions describe the claim the pathway is supposed to produce. IRIS+ metrics, surveys, operating data, and Independent Verification then test whether that claim holds.

The dimensions are:

Impact Frontiers also separates enterprise contribution from investor contribution. The enterprise may improve outcomes for patients, tenants, borrowers, workers, or ecosystems. The office’s narrower question is whether its capital, concession, first-close commitment, governance role, technical-assistance funding, or field-building work made that outcome more likely, larger, faster, deeper, or less fragile.

Why It Matters

Impact reports often compare unlike claims as if they were one thing. A portfolio table puts “12,000 people reached,” “40% lower emissions intensity,” “$30M deployed in underserved communities,” and “3.2x multiple on invested capital” in adjacent rows. The numbers may be accurate. They do not answer the same question.

Without the Five Dimensions, the office tends to confuse scale with impact quality. It favors an investment that reaches 100,000 lightly affected customers over one that changes 2,000 households’ financial security for five years. It files a green bond and a first-loss PRI under the same climate-impact label even when the first is value-aligned exposure and the second changed a financing outcome. It reports who was reached without saying whether the affected people were below threshold, whether the change lasted, or whether the office’s capital changed anything.

The frame gives the investment committee, family council, foundation board, OCIO, and reporting team a shared language. It lets them compare a PRI, MRI, recoverable grant, public-market allocation, and DAF-funded pool without pretending those positions create the same kind of evidence. It also makes Impact Washing easier to detect: a claim that cannot say what changed, who experienced it, how much changed, contribution, and risk is usually too weak to carry an impact-first label.

How to Recognize It

You are seeing the Five Dimensions used well when the impact claim comes before the metric list. The memo does not begin with available KPIs. It begins with five questions, then selects standardized or custom measures that answer them.

Strong use has visible signals:

• The What statement names an outcome, not an activity. It says “reduced rent burden,” “improved continuity of care,” or “lower verified methane leakage,” not only “dollars deployed” or “projects financed.”
• The Who statement names affected groups precisely enough to govern. It does not hide income band, geography, baseline deprivation, tenure insecurity, insurance status, or environmental exposure inside an aggregate count.
• The How Much statement separates scale, depth, and duration. It does not let a large reach number substitute for a shallow or short-lived change.
• The Contribution statement names the counterfactual. It distinguishes enterprise contribution from investor contribution and says what would probably have happened without the enterprise or without the office’s capital.
• The Risk statement names what could weaken the claim. It includes evidence gaps, execution risk, drop-off, external policy or market risks, and possible negative effects.

Weak use is also easy to spot. A manager provides one row called “impact” with no affected population, no baseline, no duration, and no contribution story. A public-market allocation reports issuer outcomes as if the family’s secondary-market purchase caused them. A report says “community impact” when the evidence supports only proximity to a community-serving asset. In each case, the missing dimension tells the office where the claim is thin.

How It Plays Out

Consider a $780M single-family office with a $115M foundation and a family council mandate around climate resilience and housing stability. The office is reviewing three proposed allocations for next year’s impact sleeve:

Before approval, the impact committee translates each claim into the Five Dimensions.

For the housing PRI, What is reduced rent burden and improved housing stability. Who is households earning below 60% of area median income in three counties with documented supply shortage. How Much is not just 1,400 units; it includes the number of households moved from rent burden above 50% of income to below 35%, expected tenancy duration, and the share of units with affordability covenants longer than fifteen years. Contribution is the $9M first-loss layer lowering senior lenders’ modeled expected loss enough to close a $64M senior tranche. Risk includes construction delay, lease-up, policy exposure around local subsidy programs, and the chance that affordability rules do not reach the households the family intended.

For the green bond ladder, the committee writes a narrower claim. What is exposure to issuers financing eligible climate projects under their bond frameworks. Who isn’t yet specific enough at the office level because the use-of-proceeds reports aggregate projects across regions. How Much is issuer-reported project scale, not office-caused outcome. Contribution is weak because the office is buying liquid bonds after issuance. Risk includes label risk, refinancing risk, and the chance that reported project categories don’t produce the real-economy change the family wants. The allocation still fits the finance-first climate sleeve. It doesn’t belong in the strongest impact-first total.

For the health recoverable-grant pool, the committee asks for better depth and duration evidence before approving the full amount. The draft reports 18,000 patients reached through mobile clinics. The committee adds follow-up completion, avoided emergency visits, patient travel time, and six-month continuity of care. It also requires the intermediary to segment by county and insurance status. The first-year grant is approved at $1.5M rather than $4M, with the remaining amount conditioned on data quality and patient follow-up.

The final memo is less flattering and more useful. It says the office has one strong impact-first contribution claim, one finance-first climate-exposure claim, and one promising but evidence-thin health-access claim. The family council can now compare the three positions without pretending they are the same kind of impact.

The failure case is the office that reports all three under one headline: “$41M deployed for climate and community impact.” That sentence hides the dimensions. It lets scale substitute for depth, exposure substitute for contribution, and intent substitute for risk analysis. It is not necessarily false. It is too imprecise to govern.

Caveats and Open Questions

The Five Dimensions are vocabulary, not proof. A manager can fill the boxes with shallow language. The office still has to test the theory of change, choose useful metrics, inspect data quality, and decide whether investor contribution is strong enough for the claim it wants to make.

Contribution remains the hardest dimension. Enterprise contribution asks whether the enterprise produced outcomes better than the counterfactual. Investor contribution asks whether the investor changed the enterprise’s ability, incentives, cost of capital, governance, or field conditions. A family office can own a good asset without having changed anything. That distinction is uncomfortable, but it is the line between impact-first capital and values-aligned exposure.

Risk is also broader than downside variance. Impact risk includes evidence risk, execution risk, affected-person participation risk, drop-off, external-policy risk, and unexpected negative effects. The 2024-2025 social-equity revisions sharpen that point: aggregate outcomes can look positive while masking who benefits, who is burdened, and whose threshold defines success.

Consequences

The benefit is disciplined comparison. The Five Dimensions let the office compare a PRI, an MRI, a recoverable grant, and a public-market allocation without flattening them into the same impact word. The family council can see which claim is about affected people, which claim is about environmental systems, which claim depends on investor contribution, and which claim is mostly values-aligned exposure.

The frame also improves metric selection. IRIS+ becomes easier to use because the office knows what each metric is trying to evidence. Independent verification becomes more useful because the verifier can test specified claims instead of broad intent language. Impact washing becomes easier to catch because weak claims usually fail one or more dimensions in plain sight.

The liabilities are practical. The frame becomes a checklist if staff fill every box with shallow language. It slows approval when a principal wants to move quickly. It also exposes uncomfortable differences inside a portfolio: the office often discovers that the largest reported “impact” allocation has the weakest investor-contribution story, while a smaller, messier PRI carries the stronger claim.

The second-order effect is cultural. Once the office uses the Five Dimensions, impact reporting becomes less about asking, “Can we say this was good?” and more about asking, “What changed, for whom, how much, because of whom, and with what risk?” That is the conversation a serious family office can govern.

Related Articles

Sources

• Impact Frontiers, Five Dimensions of Impact, updated 2024-2026 — the current stewarded Norms page for What, Who, How Much, Contribution, Risk, and investor contribution.
• Impact Frontiers, Social Equity Revisions to the Norms, January 2025 — the full-text appendix showing the 2024 social-equity audit updates to the Impact Management Norms.
• Global Impact Investing Network, IRIS+ Standards, current access 2026 — the official GIIN standard and metric-selection system that translates impact intentions into measurable results.
• Operating Principles for Impact Management, The Impact Principles and Principle 1: Impact Objectives, current practice guidance — the management-system frame in which impact objectives, assessment, monitoring, exit, disclosure, and verification make dimensional claims auditable.

This entry describes a structural pattern and is not legal, tax, or investment advice. Consult qualified counsel and tax advisors licensed in your jurisdiction before adopting any structure described here.