Family Loans for Option Exercises
A practical guide to using a family loan to fund an option exercise, including documentation, tax considerations, and the tradeoffs compared with other financing options.
Some employees are “equity rich, cash poor.” They believe their options may have long-term value, but they do not have enough cash to exercise.
One possible solution is a family loan. Used thoughtfully, it can be simpler and cheaper than outside financing. Used casually, it can create tax problems and relationship problems at the same time.
When family loans come up
A family loan may enter the picture when:
- an employee wants to exercise before leaving
- AMT or other timing issues push them to act sooner
- a post-termination exercise window is approaching
- the employee would rather avoid selling shares immediately
Why people consider this route
- lower friction than applying for specialized financing
- potentially more flexible repayment terms
- more control over timing and negotiation
- a way to keep more upside in the family rather than paying a provider
Why formality matters
The mistake is treating a meaningful family loan like a casual transfer.
If money is actually intended to be repaid, document it like a loan:
- written promissory note
- stated interest rate
- repayment schedule
- clarity on what happens if the company never exits
- alignment on whether the lender has any security interest or upside participation
The more the transaction looks informal, the more likely it can blur into gift-tax or relationship issues.
Interest rates and IRS considerations
For intrafamily loans, below-market or undocumented arrangements can create tax complexity. The IRS publishes Applicable Federal Rates (AFRs) that often matter when people structure family loans.
That does not mean every family loan is problematic. It means you should use real documentation and current tax guidance rather than a handshake and a spreadsheet.
Questions both sides should ask
Borrower
- If the company never becomes liquid, how will I repay this?
- Am I borrowing to exercise because it is smart, or because I am emotionally attached to the upside?
Lender
- Can I truly afford to lose this money?
- Am I comfortable being tied to a startup outcome I do not control?
Both sides
- Is this meant to be debt, a gift, or an investment?
- Who is drafting the paperwork?
- How will taxes be handled if terms change later?
Alternatives to compare
Before choosing a family loan, compare it with:
- waiting to exercise
- exercising fewer shares
- using third-party financing
- selling a portion if liquidity exists
- letting some options expire and focusing on the most valuable portion
Final takeaway
A family loan can be a perfectly reasonable tool for an option exercise, but it should be structured like a real financial arrangement. Clear documents and realistic downside planning matter just as much as the potential upside.
Related guides
- Incentive Stock Options (ISOs)
- Alternative Minimum Tax (AMT)
- Should You Borrow From Your 401(k) to Exercise Options?
Sources and further reading
- IRS Applicable Federal Rates: https://www.irs.gov/applicable-federal-rates
- IRS gift tax FAQs: https://www.irs.gov/businesses/small-businesses-self-employed/frequently-asked-questions-on-gift-taxes