When considering a direct investment in a business, a family often starts with the amount requested: how much can it invest in this project? That question is useful but incomplete. A R$ 1 million investment may represent a small share of reported wealth while consuming a substantial share of the money available for expenses, taxes and existing commitments. Position sizing must connect the transaction to consolidated wealth, the capacity to absorb losses and the cash payment schedule. The amount on the initial payment instruction reveals none of these dimensions by itself.
An investment ticket is a decision about the family's entire wealth
For business-owning families, there is another layer. Their main source of wealth and income may operate in the same sector as the proposed project, depend on the same customers or respond to the same economic variable. Investing in another company does not necessarily diversify wealth if both businesses need bank refinancing, sell to the same corporate group or rely on one imported input. The family office should investigate how losses could occur together, even when company names, products and legal instruments differ.
This article presents an educational method for sizing positions by project, without prescribing a personal allocation. All figures are hypothetical arithmetic examples, not market benchmarks or return forecasts. The method starts with wealth and liquidity limits, examines the rights created by each instrument and ends with authority to release funds. It may support a smaller investment, a different structure, staged funding or rejection of the opportunity. Preserving the family's ability to make future decisions also has economic value.
Four amounts that should have different labels
An investment record should distinguish the initial disbursement, contractual commitment, internal reserve and aggregate exposure. The initial disbursement is the money transferred at entry. The contractual commitment includes unpaid amounts that the family may be required to contribute when specified conditions are met. The internal reserve is money the committee chooses to preserve for possible follow-on funding, without necessarily promising it to the entrepreneur. Aggregate exposure brings these components together with related positions, guarantees and other economically connected obligations.
Suppose the family invests R$ 1.2 million initially and contracts to provide another R$ 600,000 after a verifiable milestone. Its total contractual commitment is R$ 1.8 million. If the family office also reserves R$ 600,000 internally for a possible future round, the project's internal budget becomes R$ 2.4 million. That final amount remains discretionary unless a contract or another undertaking makes it enforceable. Minutes, controls and communications should preserve this distinction. The entrepreneur must not mistake an internal reserve for assured financing.
The same precision applies to shareholder contributions, personal loans and guarantees. A guarantee may require cash beyond the recorded investment, while a conditional obligation may not appear on a bank statement at all. Reporting should identify every component without counting the same exposure twice. Highlighting only the first payment can make a large position appear small. It also leaves decision-makers unprepared for capital calls, renegotiations or emergency support requests. Both the legal obligation and its possible cash consequences belong in the investment record.
Choosing the denominator: economic wealth, available liquidity and realizable value
Expressing a position as a percentage of wealth requires an explanation of the denominator. Interests in the family business, properties used by the family, restricted assets and available money have different capacities to fund obligations. A high valuation of the operating company does not turn its shares into cash. Nor is it enough to say that a property could be sold. Timing, transaction costs, approval requirements among heirs and a possible discount in a hurried sale all affect realizable value. These qualifications should accompany the consolidated figure.
Three views are useful together. The first estimates economic wealth and explains valuation methods and uncertainties. The second identifies liquid resources available after foreseeable obligations. The third estimates what assets might realize under pressure, using hypothetical sale periods and discounts. None replaces the others. A project may look modest against estimated wealth yet consume an uncomfortable share of available liquidity. The stressed realization view may reveal that a further capital call would force the family to sell another asset on unfavorable terms.
Ownership boundaries matter too. Assets held by a holding company, personal funds belonging to different relatives and vehicles with different beneficiaries do not automatically form one available account. Before calculating percentages, identify each owner, restriction, purpose and lawful route for transferring resources. Consolidation helps explain risk; it does not authorize transfers between owners. Position sizing must therefore consider both the family's overall economic capacity and the actual capacity of the investor that will sign the documents and assume the obligations.
Building the complete budget for the numerical example
Consider a hypothetical family with R$ 100 million in economic wealth: R$ 40 million in its operating business, R$ 20 million in property, R$ 30 million in liquid resources and R$ 10 million in other private investments. Within those private investments, R$ 3.6 million consists of direct positions already funded and tracked in a specific project portfolio. That portfolio also has R$ 1 million of contracted future contributions. It therefore already uses R$ 4.6 million of budget, although only R$ 3.6 million represents assets currently held.
For this exercise, the committee sets a R$ 10 million budget for the direct project portfolio, including disbursements, future commitments and approved internal reserves. This is a hypothetical governance limit, not an allocation recommendation. Of the R$ 30 million in liquid resources, R$ 12 million is earmarked for family needs and contingencies. Appropriate cash coverage must also remain available for the R$ 1 million already contracted. Subtracting operating assets from total wealth would not establish how much money is free for new investments.
Opportunity A requires R$ 1.2 million initially, a contracted R$ 600,000 second installment and an optional internal reserve of R$ 600,000. Its budget is therefore R$ 2.4 million. Added to the existing R$ 4.6 million, it brings portfolio budget usage to R$ 7 million and leaves R$ 3 million of internal capacity. After the initial investment, liquid resources decline from R$ 30 million to R$ 28.8 million. These figures remain consistent throughout the example, with no assumed investment income, new revenue or appreciation.
Concentration by corporate group and source of risk
The existing portfolio includes R$ 800,000 already invested in another company belonging to the same corporate group as A. This amount is part of the R$ 3.6 million already funded and must not be added to the portfolio total again. If A's entire budget is used, planned exposure to the group will reach R$ 3.2 million: the earlier R$ 800,000 plus the new R$ 2.4 million. Under a hypothetical R$ 3.5 million group limit, it fits, but leaves little headroom and requires reliable identification of related companies.
Passing the group limit test does not complete the analysis. Opportunity A might share a major customer with the family business, depend on the same energy supply or require frequent refinancing. The committee must therefore examine risks that cut across legal entities. Adding contracts with different companies is only a starting point. Revenue concentration, location, critical suppliers, cross-guarantees and links between managers may connect outcomes. Missing information should be recorded as uncertainty, rather than treated as evidence that the businesses are independent.
A practical approach is to state, for each risk source, which assets could lose value and which cash inflows could disappear together. The failure of one major customer might reduce dividends from the family business and impair a portfolio borrower's repayments. This combined exposure may justify a smaller position in A even when its percentage of total wealth appears comfortable. Diversification by project count becomes useful only when supported by an investigation of the factors connecting those projects and the family's existing assets.
The instrument changes what the investment amount means
Loans, receivables, equity interests and convertible instruments create different rights. A lender must understand the payment obligation, maturities, default provisions and prospects for recovery. An equity investor must examine voting rights, economic preferences, dilution and exit arrangements. A convertible adds questions about conversion terms, triggering events and the investor's position before and after conversion. The same nominal investment can carry very different risks depending on the instrument, counterparty and enforceability of the documents. A comparison based only on the amount contributed misses these differences.
For receivables, distinguish existing eligible claims from hoped-for sales. Depending on the transaction, review contracts, delivery, acceptance, dispute rights, assignment, payer concentration and settlement arrangements. A commercial forecast does not become a verified receivable because it appears in a spreadsheet. Better documentation can reduce specific uncertainties, but cannot eliminate fraud, disputes or nonpayment. The analysis should trace the origin of the claim and identify how it could fail to produce the expected cash, including problems with the underlying transaction or payment process.
In this example, A is an equity investment funded in stages. There is no assumed principal repayment, mandatory dividend or available exit. This choice simply keeps the simulation consistent. In an actual comparison, each alternative would need reassessment against the investor's mandate and applicable tax analysis. In Brazil, a business classified as an MEI cannot admit equity partners while retaining that status. A donation to a nonprofit organization creates neither an equity interest nor a promise of financial return and should be evaluated according to its own purpose.
Liquidity: organize the money before relying on percentages
The hypothetical family will not rely on distributions from A to fund its needs during the first 36 months. This is a planning assumption, not a forecast that an exit will become available afterward. The position could remain illiquid much longer. The budget must work without a share sale or dividends. Treating a possible future funding round as a source of liquidity makes the plan depend on third parties, economic conditions and the project's own performance. Even a functioning business may provide no timely opportunity for an investor to sell.
After the initial R$ 1.2 million contribution, liquid resources stand at R$ 28.8 million. Of this, R$ 12 million is earmarked for family needs and contingencies. Another R$ 1.6 million covers future obligations: R$ 1 million for the existing portfolio and R$ 600,000 for A's second stage. A further R$ 600,000 forms A's optional reserve. This leaves R$ 14.6 million without those earmarks. If the committee also preserves the remaining R$ 3 million of project portfolio capacity, liquidity outside all these reservations is R$ 11.6 million.
This breakdown does not necessarily require separate bank accounts, but it does require traceability and assets suited to each payment horizon. An asset described as liquid may fluctuate in value or carry restrictions and redemption periods that interfere with an urgent capital call. The family office should distinguish gross balances, cash actually available and earmarked amounts. A new project must pass both the portfolio capacity test and the cash availability test. Headroom under an investment limit cannot compensate for insufficient money when an enforceable payment falls due.
Following the cash timeline and testing a contingency
Track the example without investment income, new revenue, taxes or transaction expenses, all excluded solely to simplify the arithmetic. After the initial contribution, liquid resources are R$ 28.8 million. In month three, the existing portfolio calls the R$ 1 million already contracted, reducing the balance to R$ 27.8 million. In month six, A meets its contractual milestone and receives R$ 600,000, taking the balance to R$ 27.2 million. Family needs consume R$ 6 million over the first twelve months, leaving R$ 21.2 million.
Now suppose the family business requires an additional R$ 4 million in month nine. If the family chooses to meet that need from these resources, the closing balance for the period falls to R$ 17.2 million. Of the R$ 12 million originally earmarked for family needs and contingencies, R$ 10 million has been consumed by the two uses described, leaving R$ 2 million. A's optional R$ 600,000 reserve remains undisbursed. Payment order affects intermediate balances, but does not change this final result.
The decision is not simply whether money remains. The committee must assess whether the remaining R$ 2 million contingency allocation covers the next period's obligations and whether the family business could need further support. It may suspend new approvals and retain A's optional reserve while rebuilding the cash plan. The extra R$ 4 million contribution to the operating business requires its own authorization and an update to the family's exposure analysis. Its economic effect cannot be overlooked merely because it appears in a different reporting category.
Loss capacity and adverse scenarios
Loss analysis starts with the possibility of zero recovery. After A's two contracted installments, the family will have disbursed R$ 1.8 million. If the equity interest loses all value and the optional reserve remains unused, the economic loss on this position is R$ 1.8 million before any additional costs. If the committee also invests the optional R$ 600,000, the loss could reach the full R$ 2.4 million budget. Money reserved but never invested remains preserved cash; it is not a loss incurred in the project.
Another hypothetical scenario assigns the interest a recoverable value of R$ 900,000 after R$ 1.8 million has been invested. The economic decline would be R$ 900,000. That recovery estimate is neither available cash nor an offer to buy the interest. If the group's other company also encounters difficulties, the earlier R$ 800,000 position must be reviewed alongside A. Reporting should show effects by position and by group, without offsetting an observable loss using an optimistic valuation increase in another illiquid asset.
A more informative stress scenario combines damage: lower dividends from the family business, a loss in A, delayed receipts and an extraordinary expense. Which commitments would remain enforceable, and who could authorize urgent measures? Without sufficient data, such tests cannot establish precise probabilities. They can expose breaking points. If the plan works only with rapid recovery, asset sales without discounts or uninterrupted access to credit, the proposed position depends on fragile conditions. The amount and structure deserve review before the family signs.
Staged contributions and the evidence needed to release funds
Staging an investment reduces the amount exposed before further evidence becomes available, but only when milestones are verifiable and economically relevant. For A's second R$ 600,000 installment, the hypothetical contract might require documented installation of a production line, reconciliation of the use of initial funds and evidence of working capital consistent with the revised plan. A milestone should demonstrate a reduction in risk. An invoice or a report prepared by the entrepreneur may show a purchase or a claim without establishing that the operation can function.
Diligence should specify in advance the required evidence, the person responsible for validation, the review period and how disagreements will be handled. If equipment has been bought but does not work, has the milestone been met? If costs exceed budget, who funds the gap? If an essential license remains outstanding, does the next stage still make sense? Resolve these questions in negotiation. Once a payment is contractually due after specified conditions, the family office cannot assume it may refuse simply because its preferences have changed.
Staging also creates costs: additional documents, verification time, possible project interruptions and financing needs between installments. An entrepreneur may reasonably seek a single contribution to secure predictable supplier terms. The investor should consider this operating constraint when negotiating milestones. Alternatives include a smaller initial scope or a stage that can function economically on its own. The optional R$ 600,000 reserve requires a fresh decision. Its existence, and the fact that earlier money has been invested, do not automatically justify releasing it.
Diligence and evidence quality in position sizing
Diligence should connect documents to economic questions that affect the investment amount. Financial statements help explain results, but should be assessed alongside cash flow, debt, obligations and significant transactions. A customer list clarifies concentration only when it reveals revenue, repeat business, cancellation exposure and dependence on particular individuals. A contract alone does not prove performance, payment or the absence of disputes. Each material conclusion should identify its supporting evidence, its limitations and the information still missing. These distinctions affect how much uncertainty the family is accepting.
A useful record separates documented facts, statements made by others, investor assumptions and unresolved matters. In the example, an equipment purchase may be documented while its ability to support future sales remains an assumption to test. A claim that a customer will renew orders should remain attributed to its source rather than become contracted revenue. This prevents a sales presentation from passing through successive meetings and emerging in the minutes as established fact. Greater dependence on fragile assumptions may support a smaller position or stronger conditions before entry.
Verification has costs and should be proportionate to complexity. Legal, accounting and technical fees, staff time and monitoring expenses belong in the economic assessment. A very small investment may make fixed costs disproportionate; increasing it solely to dilute those costs may create unwanted concentration. Sharing diligence with independent investors, changing the structure or declining the opportunity may be reasonable. Shared work does not transfer decision responsibility. Each investor still needs to understand what was examined, what was excluded and how the findings apply to its own rights and exposure.
Negotiation, disagreement and conflicts of interest
Position sizing often involves legitimate disagreements. An entrepreneurial family member may value sector knowledge and access to the founders, while another prioritizes liquidity and financial independence. The investment professional may favor a size that makes diligence costs workable, while legal advisers identify obligations that enlarge exposure. The committee should record the arguments and the evidence that could change each view. A vote without that reasoning may settle the meeting but leave the family poorly equipped to reconsider its decision when circumstances change.
In negotiations with A, the family office might propose a contracted R$ 1.8 million in two stages while retaining discretion over another R$ 600,000. The entrepreneur may ask for the entire amount to be guaranteed or committed within a short period. That difference has economic value: an earlier obligation reduces flexibility and increases the commitment. Compare it with the price, rights, information and genuine funding needs of the project. A discount on entry does not automatically solve a shortage of cash needed to honor a future contractual payment.
Conflicts need specific treatment where there are family ties, commercial relationships, referral fees or personal co-investments by professionals involved in the analysis. Minutes should identify the relationship, its management and any required exclusion from the decision under the applicable governance arrangements. They should also clarify who pays costs if the deal does not proceed. Familiarity with the entrepreneur may improve information access while making enforcement and loss recognition harder. Personal trust must be considered alongside contracts and verification when deciding how much exposure the family can manage.
Succession, ownership and decision authority
An illiquid position may outlast a generational transition, a decision-maker's incapacity or a family reorganization. The analysis should therefore identify the legal owner, the people authorized to exercise rights and how documents will remain accessible to authorized users. Succession can change representation, response times and views about the investment's purpose. Competent professionals should assess the structure for the specific circumstances, including tax implications. The aim is to prevent an investment understood by one person from becoming an obligation with nobody prepared to manage it.
Authority can be separated into budget approval, document signing, confirmation of conditions and payment execution. In the example, approving an internal budget of up to R$ 2.4 million does not authorize one professional to transfer it all. The initial R$ 1.2 million depends on approved closing requirements. The next R$ 600,000 requires verification of conditions and performance of the contractual obligation. The optional R$ 600,000 needs a new decision. A changed beneficiary, additional guarantee or material contract amendment should follow its own procedure rather than rely on a general authorization.
The family should also designate substitutes and establish procedures for urgent decisions. A request for an answer within hours cannot create authority that does not exist. If the main decision-maker is unavailable, the process should still allow valid obligations to be fulfilled while preserving controls. Successors who missed the negotiation need understandable records of risks, commitments, rights and contacts. Continuity depends on clear, current records linked to supporting documents, rather than on lengthy minutes that leave practical responsibilities and next steps unclear.
Monitoring budget, cash commitments and value separately
Monitoring should show at least three dimensions that change differently. The budget records what has been authorized and reserved. The commitment register tracks amounts due, conditions and payment schedules. Economic valuation estimates what the position is worth, with its methods and uncertainties. After A's second installment, R$ 1.8 million will have been disbursed and R$ 600,000 will remain internally reserved. A decline in estimated equity value releases no money for another project. It records economic deterioration and may require action or a review of the investment mandate.
Indicators should follow the investment thesis. If A depends on starting a production line and turning orders into collections, relevant measures include physical execution, actual capacity, margin, working capital and customer concentration. Revenue growth alone can conceal longer collection periods or nonpayment. Reports should compare actual performance with assumptions and explain changes. Useful alerts lead to decisions: request clarification, update cash projections, exercise a contractual right or reassess optional funding. Numbers without a defined decision consequence can leave monitoring as a reporting exercise with little practical effect.
The investment professional may coordinate oversight with legal, accounting and treasury support, depending on the family's structure. Treasury checks cash and beneficiaries; legal advisers track rights and amendments; accounting maintains records and obligations; the committee acts within its authority. Private documents require restricted access and appropriate data handling. If blockchain is used, record integrity does not prove truth, legal title, reserve solvency or payment. Contracts, personal data and other private documents should not be placed on public blockchains. Technology does not remove the need to verify the underlying claim.
Intermediation, documentation and the limits of technology
KEZS connects entrepreneurial projects and potential funders through technology and intermediation. A project-based approach can help investors distinguish the intended use of funds, proposed instrument, available documents and outstanding questions. Its usefulness depends on information quality, updates and the ability to verify claims. Diligence and investment decisions remain the investor's responsibility. KEZS does not assign a credit score. Presentation of a project should not be interpreted as approval, a personalized recommendation or evidence that an entrepreneur can meet payment obligations.
The family office should also assess every participant's role and compensation. A document organizer may benefit from completion, while an opportunity introducer may be paid according to the amount raised. Understanding incentives helps investors interpret information and negotiate responsibilities. Clarify where documents originate, who is responsible for statements, what checks were performed and how inconsistencies should be corrected. These are requirements for a sound process, not proof that any particular platform feature or service is operational. Intermediation provides no guarantee of funding approval, repayment, profitability, liquidity or preservation of capital.
Regulatory treatment depends on the activity actually performed. Public securities distribution and regulated financial activities require appropriate structures and participants; technology or a Brazilian CNAE activity classification does not itself grant permission. Materials from Banco Central do Brasil, the CVM, Portal do Empreendedor and the ANPD can serve as reference entry points. They do not prove KEZS authorization or establish that a particular transaction is suitable or compliant. Investors need analysis applicable to the chosen structure rather than an assumption that a private contract removes all regulatory requirements.
Correcting the process and reaching an executable decision
Three errors warrant prompt correction. Recording only the initial contribution requires reconstruction of commitments and reserves, supported by legal review. Treating different companies as independent risks requires mapping corporate groups, customers, guarantees and economic dependencies. Using an optimistic valuation as liquidity requires rebuilding payment projections from available cash without an assumed exit. If these errors have already permitted excessive approvals, the response may include suspending new discretionary contributions and revising priorities while respecting existing obligations. Correcting a spreadsheet does not undo commitments already made.
In the example, an executable decision could approve A with a maximum internal budget of R$ 2.4 million, including a contractual R$ 1.8 million commitment in two installments. The record should show portfolio budget usage rising to R$ 7 million against the hypothetical R$ 10 million ceiling. It should also show potential group exposure of R$ 3.2 million, including the earlier R$ 800,000 and optional reserve. Specify responsible people, closing documents, the second-installment milestone and the requirement for a new decision on the remaining R$ 600,000.
Before signing, the family should be able to explain how much it could lose, how much more it could be required to pay and where that money would come from. Afterward, it should review the position as evidence, family wealth and liquidity needs change. The analysis may confirm the investment, reduce it or stop it before entry. A well-sized position connects legal rights, economic risks and monitoring capacity to the family's actual resources. It cannot eliminate losses, but it can make the commitment understandable and the decisions surrounding it manageable.
Frequently asked questions.
Is there an ideal percentage of family wealth to invest in each project?
No universal percentage resolves the decision. The same share of wealth can carry different risks depending on liquidity, future obligations, the instrument, economic concentration and monitoring capacity. Test the amount against consolidated wealth, available cash and limits by corporate group and source of risk. Percentages can serve as governance controls when their denominators and exception procedures are clear. They cannot replace diligence. A position that looks small against an estimated business valuation may still consume money needed for an enforceable payment.
How should a family assess an offering whose minimum investment exceeds its internal limit?
A commercial minimum does not increase the family's ability to bear risk. It may be possible to negotiate a smaller scope, participate through an appropriate structure or agree on another economic arrangement, after examining costs, rights and applicable regulation. Declining may also be necessary. Raising the limit merely because the opportunity requires a larger contribution turns the seller's condition into a wealth management rule. Any exception should explain why the resulting risk remains bearable and identify who has authority to approve it.
Should money reserved for a future round remain available indefinitely?
An internal reserve needs a purpose, a review point and conditions for release. If the investment thesis changes or the family needs to rebuild liquidity, the money may be reassigned under its governance rules, provided no external obligation prevents this. Review contracts, letters and communications before treating the reserve as fully discretionary. In the example, the optional R$ 600,000 reduces internal capacity for other projects while reserved, but does not automatically become a debt owed to A. Any reallocation should update both the budget and cash plan.
Does collateral allow a larger investment without increasing risk?
Collateral may improve a recovery route, but its effect depends on legal validity, priority, realizable value, other creditors and enforcement time. Property or receivables pledged as security may lose value precisely when the borrower encounters difficulty. Costs and disputes can further reduce recovery. Position sizing should therefore consider partial recovery and delay, rather than assume the stated collateral value will be available in cash. That nominal value alone does not justify a larger position or turn the transaction into an investment with guaranteed capital.
Does co-investing with another family reduce the need for independent analysis?
Co-investment can share costs and broaden expertise, but also creates coordination dependencies. Each investor should understand information rights, collective decisions, additional funding arrangements and possible exits. The lead family's interests may differ from those of other participants because of commercial relationships or greater tolerance for illiquidity. Sharing documents and specialists can help. Following another investor's conviction without examining assumptions and conflicts leaves material risks unassessed. The work can be shared, but each family remains responsible for deciding whether the position fits its own commitments.
When a project asks for more money, how can investors avoid funding it only to protect earlier contributions?
Assess the new contribution on what it could achieve from that point onward. The committee should understand why the money is needed, the alternatives, cash availability and the rights obtained. Compare providing funds, negotiating another solution and accepting a loss or dilution. Earlier contributions matter for total exposure, but do not establish the merits of another payment. Discretionary contributions require a fresh decision. Existing contractual commitments need specific legal analysis, since an unattractive new outlook does not itself cancel an enforceable obligation.
Does writing down an investment free capacity for another project?
A write-down returns no cash and removes no obligations. The policy should explain whether its limits track cost, economic value, commitments or a combination. Automatically reducing budget usage after a loss can allow repeated replacement of risk while obscuring the capital already consumed. One approach is to track current exposure, cumulative losses, commitments and the budget for new contributions separately. Any limit revision should consider the family's entire financial position and actual liquidity. A lower valuation should trigger analysis rather than automatically authorize replacement spending.
References and context
Institutional reference points for checking applicable rules and guidance. Calculations and scenarios are original examples, not quotes, historical results or individualized recommendations.
- Banco Central — correspondentes no País ↗
- CVM — Resolução 88, texto e alterações ↗
- CVM — Resolução 175, fundos de investimento ↗
- Portal do Empreendedor — perguntas sobre MEI ↗
- ANPD — orientações e perguntas frequentes ↗
AI-assisted educational content. Decisions require verification of the information, instruments and providers in each actual case.
