Guide
Personal Guarantees on Business Loans, Explained
What a personal guarantee is
A personal guarantee is a director’s personal commitment to repay a business loan if the business itself cannot. It’s a common requirement on unsecured business loans, since there’s no asset backing the loan, and it’s frequently required alongside asset security on a secured business loan too, since lenders generally want a director standing behind the debt regardless of what collateral is in place.
How it’s different from security
Security means a named asset the lender has a legal charge over, which they can seek to repossess and sell if the business defaults. A personal guarantee is different: it’s a promise to pay personally, out of your own assets and income, rather than a claim over one specific named asset from the outset. In practice, if a guarantee is called in and unpaid, a lender can still pursue a director’s personal assets, including their home, through the courts, which is why it carries real personal risk even without a specific charge being registered against anything at the outset.
When lenders ask for one
- Almost always on unsecured business loans. Since there’s no asset backing the loan, the personal guarantee is often the lender’s main additional protection beyond the business’s own trading strength.
- Frequently on secured business loans too. Even with an asset pledged, many lenders still want a director’s personal guarantee as a further commitment.
- More likely for newer or smaller businesses. An established business with strong accounts may occasionally negotiate a facility without one; a newer or smaller business is less likely to.
Should you sign one?
That’s a genuinely personal decision, and worth taking independent advice on for a large facility, but a few practical points help frame it: understand exactly what’s being guaranteed (the full loan, or a capped amount), check whether it’s joint and several if there are multiple directors, and factor in that a guarantee is enforceable through the courts like any other personal debt if called in. Some lenders offer personal guarantee insurance as an add-on, which can cap your personal exposure in exchange for a fee, worth asking about if the guarantee is a sticking point.
How long a guarantee lasts, and can it be unenforceable
A personal guarantee typically runs for as long as the underlying facility, and a lender can request payment under it at any point after a default, not only at the end of the term. Guarantees are usually enforceable in the same way any other signed personal debt is, but a poorly drafted or misrepresented guarantee can, in principle, be challenged as unenforceable; that’s a matter for legal advice on the specific document, not a general rule to rely on. Understanding exactly what you’re agreeing to, in writing, before signing is the practical takeaway.
Advantages and disadvantages of personal guarantees
There’s an advantage worth naming alongside the risk: a director willing to give a personal guarantee often unlocks funding, or better terms on that funding, that wouldn’t otherwise be available, since it gives the lender extra comfort beyond the business’s own credit score and trading history. That’s especially relevant for a growth-stage business that needs finance ahead of the accounts catching up with its actual trading strength. The disadvantage is the personal exposure itself: it works against you exactly when the business needs it least, if the business struggles and can’t repay.
What happens if a personal guarantee is called in
If the business defaults and the lender calls in the guarantee, they can pursue the guaranteeing director for the outstanding amount through the normal debt-recovery and court process, the same as any other personal debt. This is separate from, and can run alongside, whatever happens to any asset security on a secured loan. Consider this realistically before you sign, not just at the point a business is already struggling to repay.
Personal guarantees and your credit file
If a personal guarantee is called in and you don’t repay, it can result in a County Court Judgment against you personally, which affects your own credit file separately from the business’s. This is one reason the decision matters beyond the immediate loan: see our guide on business loans with bad credit for how that kind of credit event affects future borrowing.
Where this fits in your decision
A personal guarantee applies across both secured and unsecured business loans, so it isn’t really a factor in choosing between the two. What it does affect is your personal exposure regardless of which route you take, which is worth weighing alongside the numbers our secured vs unsecured comparison covers.