From Liquidity Event to Family Office | The 90-Day Setup Plan

A post-liquidity event family office plan helps founders move carefully after a major exit, IPO or secondary sale. The first 90 days after liquidity can shape tax outcomes, investment discipline, family governance and long-term wealth protection.

This stage is exciting, but it can also be risky. Large cash inflows attract advisers, investment offers, family requests and lifestyle decisions. A 90-day plan gives the founder time to organise before making permanent moves.

Why The First 90 Days Matter

A liquidity event changes the founder’s financial life quickly. The founder may move from concentrated private company wealth to cash, listed shares or staged payouts. IPO situations can also involve lock-up agreements. An IPO family office setup should account for lock-up periods, staged liquidity, tax dates, banking readiness and adviser coordination before major investment decisions begin.

Most IPO lock-up agreements prevent insiders from selling shares for 180 days, although the exact terms can vary and must be checked in the prospectus. 

The first 90 days should focus on clarity, not speed. A founder needs to know:

• What was received
• What remains locked
• What tax may arise
• Which assets need protection
• Who should make decisions

90-Day Setup Quick View

Days 1 To 15: Stabilise The Proceeds

The first two weeks should be calm and document-led. The founder should confirm transaction proceeds, expected tax payments, escrow terms, earn-outs, lock-up limits and any post-closing obligations. This prevents rushed investment decisions before the full liquidity picture is clear.

Banks may ask for proof of source of wealth and source of funds. The transaction documents, sale agreement, IPO records, board approvals, tax notes and bank statements should be organised early. This file will support future banking, trustee onboarding and investment account opening.

This is also the time to set spending controls. A founder does not need to decide the full wealth strategy yet, but the cash should not sit without authority rules.

Days 16 To 30: Build The Adviser Bench

Post-exit planning works best when advisers have clear roles. A founder may need a tax adviser, investment adviser, private banker, estate lawyer, fiduciary adviser and family governance consultant. The mistake is letting one adviser control every decision too early.

The founder should appoint a lead coordinator or create a simple decision group. Each adviser should know their role, fee model and authority limits. This avoids overlapping advice and protects the founder from rushed product sales.

For globally mobile founders, tax residency needs early review. The Common Reporting Standard calls on jurisdictions to collect financial account information through financial institutions and exchange it with other jurisdictions each year. Clean tax records matter before accounts and structures multiply.

Days 31 To 45: Design The Wealth Structure

Liquidity wealth structuring should follow the founder’s life, not a template. Some founders need a single family office. Some need a lean holding company. Some need a trust, foundation or private trust company. Others need a phased model where the structure grows over time.

A post-exit planning review should answer:

• Who owns the proceeds today?
• Which assets should remain personal?
• Which assets should move into a company, trust or foundation?
• Which family members may benefit later?
• Which country’s tax and succession rules may apply?
• Which banks and investment managers will hold assets?

This stage is also where the founder should decide if an exit family office is needed immediately. A full office may be too heavy in the first month. A virtual family office or outsourced model may work until the asset base, family needs and investment style become clearer.

Days 46 To 60: Create The Investment Policy

Founders are used to risk, but operating-company risk is different from family-capital risk. After a liquidity event, the goal may shift from growth at all costs to capital preservation, income planning and controlled exposure to new opportunities.

An investment policy statement should define:

• Liquidity needs
• Risk tolerance
• Asset allocation
• Prohibited investments
• Approval limits
• Reporting format
• Decision authority

It should also set rules for:

• Founder-led angel investments
• Venture deals
• Related-party opportunities

This protects the founder from saying yes too quickly. A strong policy creates a pause between opportunity and action.

Days 61 To 75: Prepare Family Governance

A liquidity event can change family dynamics. Relatives may expect gifts. Children may ask questions. Spouses may want security. The founder may want privacy, but silence can create confusion.

Family governance does not mean sharing every number with everyone. It means creating a clear way to discuss values, responsibilities and decision rights. For example, the founder can define which matters stay with the founder, which matters go to advisers and which matters involve family discussion.

If the family office will support education, philanthropy or next-generation involvement, those roles should begin with boundaries.

Days 76 To 90: Formalise The Operating Model

By day 90, the founder should have a workable operating model. This does not need to be perfect. It should be clear enough to guide the next year.The model should include:

• Bank accounts
• Adviser roles
• Tax calendar
• Investment reporting
• Trust or foundation roadmap
• Insurance review
• Estate planning schedule
• Document storage

Beneficial ownership records should also be kept accurate and updated. FATF guidance focuses on adequate, accurate and up-to-date beneficial ownership information for express trusts and similar arrangements. 

If the family office will apply for Singapore fund tax incentives later, eligibility and conditions should be checked early. MAS fund tax schemes for family offices require qualifying fund vehicles to meet listed criteria throughout the incentive period. 

Conclusion

Arnifi helps founders organise post liquidity event family office planning with practical clarity. Our experts support entity formation, documentation coordination, compliance preparation and banking support. Our team helps map the founder’s assets, adviser needs and family office setup route so legal, tax and investment advisers can move with better context. 

FAQs:

1. What is a post liquidity event family office?

It is a family office or wealth structure created after a founder receives major proceeds through an exit, IPO, secondary sale or business transaction.

2. Should a founder create a family office immediately after an exit?

Not always. A virtual or outsourced model may work first. A full office should be created when asset size, complexity and governance needs justify it.

3. What should founders do in the first 90 days after liquidity?

They should confirm proceeds, organise tax records, set cash controls, build an adviser bench, review structures and create an investment policy.

4. What is liquidity wealth structuring?

Liquidity wealth structuring is the process of organising exit proceeds through the right mix of personal ownership, companies, trusts, foundations, investments and governance rules.