Advice on Managing the Bank of Mum and Dad

Date: 28 Nov 2025

Citywealth

By Shirley Coe, Senior Private Banker, Weatherbys Private Bank

Parents increasingly provide financial support not only for housing but also for children starting businesses. While this can be rewarding, it carries significant risks. The article offers practical guidance:

  1. Understand the Scope

The “Bank of Mum and Dad” is no longer limited to helping with deposits and mortgages—it now plays a major role in funding entrepreneurial ventures.
With record numbers of UK startups, family support is becoming more common.

  1. Benefits and Risks

Success stories (e.g., Richard Branson and Mark Zuckerberg) show how family backing can launch major businesses.
But failure is possible: one example involved a £250,000 parental investment that was lost when the business collapsed, causing financial and emotional strain.

  1. Treat It Like a Business Transaction

Request a business plan to assess viability.
Decide upfront: gift, loan, or equity stake?
Formalize agreements in writing—especially for large sums—to avoid misunderstandings and protect both parties.

  1. Structuring the Investment

For loans, set clear repayment terms and interest rates.
For equity, clarify:

  • Profit-sharing and dividend expectations
  • Exit strategy and dilution risks
  • Decision-making roles

Experienced investors recommend keeping a contingency fund equal to your initial investment for follow-on funding requests.

  1. Estate Planning

Consider how gifts or investments affect inheritance.
Adjust wills to maintain fairness among children.

  1. Non-Financial Support

Parents can offer time, skills, and workspace—but should avoid over-involvement that could strain relationships.

  1. Emotional and Practical Safeguards

Don’t overextend financially; protect your own future.
Set boundaries around lifestyle expectations to prevent resentment.
Formal agreements help separate emotion from business, even if they feel less personal.


Supporting your child’s business can be fulfilling but risky. A professional, structured approach—anchored in clear documentation and realistic expectations helps safeguard finances and family harmony.

Read the full article here: Advice on Managing the Bank of Mum and Dad

Author: Shirley Coe

Shirley Coe

Senior Private Banker,  Weatherbys

Key Takeaways

  • Parents now support children’s entrepreneurial ventures, which carries both rewards and risks.
  • Clearly outline the financial scope, benefits, and risks before investing in a child’s business.
  • Treat financial support as a business transaction, requiring a formal business plan and written agreements.
  • Consider the structure of the investment, including repayment terms for loans and profit-sharing for equity.
  • Implement emotional and practical safeguards to prevent financial strain and maintain family harmony.