Secured vs unsecured business loans: which is right for a UK SME?

A secured business loan is backed by an asset such as property, machinery or a debtor book, which usually means lower rates and larger amounts but slower setup and real assets at stake. An unsecured loan needs no specific asset, funds faster and suits smaller sums, but costs more and very often relies on a personal guarantee. The right choice depends on what you can pledge and how fast you need the money.

What is the difference between a secured and an unsecured business loan?

A secured loan is tied to a specific asset the lender can take and sell if you default. Common security includes commercial property, plant and machinery, vehicles, or a charge over the business through a debenture. Because the lender’s downside is covered, secured borrowing is generally cheaper and available in larger amounts.

An unsecured loan is not tied to a named asset. The lender relies on your trading record and creditworthiness instead. That makes it faster to arrange and simpler for smaller sums, but it is priced higher to reflect the added risk, and the lender will usually want a personal guarantee from a director.

The structures themselves are set out in our business loans guide; this post is about choosing between the two.

Which is cheaper, secured or unsecured?

Secured is almost always cheaper for the same borrower, because security reduces the lender’s potential loss and therefore the risk margin built into the rate. UK loan pricing anchors to the Bank of England base rate, held at 3.75% as of the Bank’s most recent decision (Bank of England, Bank Rate), and the margin on top is where security earns its discount.

The trade-off is exposure. With a secured loan you can lose the pledged asset. With an unsecured loan you avoid putting a specific asset on the line, but you typically pay more and you may still be personally exposed through a guarantee. Our secured versus unsecured guide works through the cost difference in more detail.

Do unsecured loans really avoid putting my assets at risk?

Not always, and this is the most misunderstood point. Many unsecured business loans require a personal guarantee, a separate promise that makes a director personally liable if the company cannot repay. A personal guarantee is not the same as security over a business asset, but it can still reach your personal finances.

The regulatory backdrop is worth understanding. The Financial Conduct Authority investigated lenders’ use of personal guarantees following a 2023 super-complaint and, in its follow-up work, found no evidence of harm within the part of the market it regulates that would warrant further supervisory action (FCA, follow-up work on personal guarantees). Crucially, most SME lending sits outside the FCA’s remit at all: lending to limited companies, LLPs and partnerships of more than three people is out of scope, as is most business lending above £25,000 (FCA, response to the FSB super-complaint).

The practical takeaway: read the guarantee terms carefully, because the consumer-style protections you might expect on a personal loan often do not apply to business borrowing. Our personal guarantees explained guide covers what to check before signing.

When does a secured loan make more sense?

Secured borrowing tends to win when you need a larger sum, a longer term or the lowest possible rate, and you hold an asset you are comfortable pledging. Typical cases include buying premises, funding a major equipment purchase, or refinancing several smaller facilities into one cheaper loan.

It also suits businesses that have an asset but a patchier credit record, because the security can offset a weaker profile. The cost is time: valuations and legal charges mean secured deals take longer to complete than unsecured ones.

When is an unsecured loan the better fit?

Unsecured borrowing fits smaller, faster needs: a working-capital gap, a short-term cash-flow bridge, or a business that simply has no asset to pledge. The wider lender market helps here. More than two-thirds of SME lending in 2025 came from challenger, specialist and non-bank lenders rather than the high street (British Business Bank, Small Business Finance Markets 2026), and many of those lenders specialise in fast, unsecured decisions.

The point is to match the product to the need rather than defaulting to whichever your bank offers first.

How to decide between the two

Work through four questions in order:

1. What do I have to pledge? No usable asset usually means unsecured by default.
2. How fast do I need the money? Days favour unsecured; weeks allow secured.
3. How much am I borrowing? Larger and longer leans secured; smaller and shorter leans unsecured.
4. Am I comfortable with a personal guarantee? If not, that narrows the unsecured options and is worth raising with any lender up front.

Once you have answered those, comparing several lenders for the same request is the single most reliable way to find the best terms. You can request matched quotes through our quote form, and we will route your details to lenders that fit the profile rather than a single panel.