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Personal Guarantee

Last updated 8 October 2026

A personal guarantee is a promise by an individual, usually a company owner or director, to repay a business debt from their own money if the business cannot. It removes the protection that a limited company normally provides, at least for the specific debt the guarantee covers.

From the Money Master HQ dictionary, founded by Shihan Sheriff (FCMA, CGMA, CPA (Australia), MBA (General), MBA (Data Science & AI), UAECA, CAAB, CAIS; VP of Finance at Nomod, CFO at Esanjo Ventures). How these definitions are written.

On this page

What it means

Lenders ask for personal guarantees when the business itself does not look creditworthy enough on its own. A young company with few assets, a thin trading history or volatile cash flow gives a lender very little to pursue if things go wrong, so the lender asks the owner to stand behind the borrowing.

The guarantee costs the lender nothing to take and materially improves the odds of recovery. The legal effect is straightforward and frequently underestimated.

Once the business defaults and the lender has exhausted the business assets, the guarantor is pursued personally for whatever remains, which can reach savings, investments and in many cases the family home. Directors sometimes sign these documents inside a stack of other paperwork without registering what they have agreed to.

Guarantees vary a great deal in how much they expose you. A capped guarantee limits liability to a stated amount, an uncapped one does not, and a joint and several guarantee lets the lender pursue any single guarantor for the full sum rather than splitting it evenly.

That last point surprises co-founders who assume a two-person guarantee automatically means half each. You can often negotiate the terms even when you cannot avoid the guarantee entirely.

Common asks include a cap expressed as a percentage of the facility, a carve-out for the family home, a requirement that the lender enforces its business security first, and a release once the business hits agreed financial milestones. Guarantees also need actively cancelling when you leave a business, because they do not fall away simply because you resigned as a director.

Personal guarantee insurance exists and can cover part of the exposure for an annual premium tied to the amount guaranteed. It is not a substitute for reading the document, but it can take the edge off a risk that is otherwise uninsurable.

The wider point is that a guarantee converts a business risk into a household risk, and it should be priced that way when you decide whether the borrowing is worth taking.

In practice

Real-world examples

Example 1

A bakery owner signs a personal guarantee to finance $85,000 of ovens because the company is only fourteen months old. The lender drops the interest rate by two percentage points once the guarantee is in place, so the owner is effectively paying for cheaper credit with personal risk.

Example 2

Two co-founders of a design agency sign a joint and several guarantee on a $150,000 overdraft. When the agency collapses, one founder has emigrated and has no reachable assets, so the bank pursues the other for the whole balance rather than half of it.

Example 3

A commercial landlord requires a director's guarantee on a five-year shop lease. The retailer closes the store after two years, and the director remains personally liable for the rent until the landlord relets the unit, which takes seven months.

Think of it

A personal guarantee is like co-signing a loan for a friend. Even though your friend plans to drive the car and make the payments, the bank knows where to find you if your friend stops paying.

Formula

Calculation

Personal exposure = the lower of (the guarantee cap) and (outstanding debt + enforcement costs - recovery from business assets) Suppose a founder guarantees a $400,000 equipment loan. The business fails still owing the full $400,000, and the lender adds $20,000 of legal and enforcement costs. Selling the secured equipment raises $250,000. Shortfall = $400,000 + $20,000 - $250,000 = $170,000. If the guarantee is uncapped, the founder owes the entire $170,000 personally. If the guarantee is capped at 25% of the original facility, the cap is 0.25 x $400,000 = $100,000. The founder owes $100,000 and the lender writes off the remaining $170,000 - $100,000 = $70,000. In other words, the half hour spent negotiating that cap was worth $70,000.

Case study

Seen in the real world

Brightloom Interiors is a fictional furniture retailer used here to illustrate how a guarantee behaves in practice. Its two directors signed an uncapped joint and several guarantee for a $300,000 working capital facility in the company's second year, when the bank would not lend on the balance sheet alone.

Four years later the company was profitable, held $500,000 of net assets and had a strong payment record, but the original guarantee was still in force because nobody had asked for it to be reviewed. When one director sold her shares and left, she did not obtain a written release, and eighteen months after that the remaining management drew the facility down in full before the business failed.

In this illustrative outcome the departed director was still a guarantor and was pursued for the shortfall alongside her former partner. Two habits would have prevented it: asking the lender annually whether the guarantee can be reduced or removed as the business strengthens, and treating a written release as a non-negotiable condition of any exit.

Watch out

Common mistakes

  • Believing that trading through a limited company always protects personal assets, when a signed guarantee sets that protection aside for the debt it covers.
  • Assuming that a guarantee shared between two directors means each is liable for half, when joint and several wording lets the lender recover the full amount from whichever guarantor is easiest to reach.
  • Resigning as a director and assuming the guarantee ends automatically, when it usually continues until the lender confirms a release in writing.

Questions

People also ask

Can a personal guarantee be negotiated?

Yes, and it often is, with caps, family home carve-outs, a requirement to enforce business security first and release triggers all being reasonable requests to put to a lender.

Does a guarantee cover future borrowing as well as the current loan?

It can, because all-monies wording extends to any facility the business takes with that lender, so the exact scope needs checking before signing.

Is personal guarantee insurance worth buying?

It can be, particularly for uncapped exposure, though cover is usually partial rather than total and the premium rises with the amount guaranteed, so it is a risk reduction rather than a removal.

Sources and further reading

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Disclaimer

The information provided in this finance dictionary is for educational and informational purposes only. It should not be construed as financial, investment, legal, or tax advice. Always consult with a qualified professional before making any financial decisions. Money Master HQ makes no representations or warranties about the accuracy, completeness, or suitability of this information. Use of this content is at your own risk.