Secured vs Unsecured Business Loans for UK Ltd Cos

What makes a loan secured or unsecured

A secured loan is one where the lender takes a legal charge over a specific asset, or a floating charge over all company assets, so they can recover their money if you default. Common security includes commercial property, residential property, plant and machinery, and trade debtors under invoice finance arrangements. The charge is registered at Companies House, making it visible to other creditors.

An unsecured loan carries no such charge. The lender prices the higher risk into the interest rate and may require a personal guarantee from one or more directors to compensate for the absence of hard collateral. Some lenders use both: a lightweight debenture alongside a personal guarantee rather than a specific fixed charge on property.

How rates and limits differ in practice

Secured loans tend to carry lower annual rates because the lender faces less credit risk, and they typically allow larger facilities, sometimes from £50,000 up to several million pounds. With the Bank of England base rate at 3.75% as of June 2026, secured commercial mortgage-style products from high-street banks are often priced at base plus 2 to 4 percentage points for creditworthy borrowers.

Unsecured term loans from mainstream banks and fintech lenders typically start around £1,000 and cap out between £250,000 and £500,000 for most SMEs. Rates are higher, commonly ranging from 6% to 30% APR depending on credit profile, trading history, and loan term. Shorter terms and stronger financials push the rate down; newer businesses or thin credit files push it up considerably.

What lenders look at for each type

For secured lending, the lender's primary concern is the loan-to-value ratio on the asset being charged. Most commercial lenders will lend up to 70% of a surveyed property value, though some asset finance providers go higher against specific equipment because they can repossess and resell it. They will still check trading performance, but the asset valuation carries significant weight in the decision.

For unsecured lending, the underwriter focuses on cash flow, specifically whether the business generates enough free cash to service the debt each month. Lenders typically look for a debt service coverage ratio of at least 1.25 times. They will review bank statements, filed accounts at Companies House, credit bureau data on both the business and its directors, and any county court judgements or defaults on record.

Risks for directors and shareholders

The key risk in secured lending is asset loss. If the business cannot repay and a fixed charge exists over the company's premises, the lender can appoint a fixed charge receiver to sell that property. A floating charge can trigger administration or liquidation. Directors retain limited liability in theory, but lose the secured asset in practice, which can end trading entirely if that asset is the operating premises.

With unsecured lending backed by a personal guarantee, the risk transfers to the individual rather than the company balance sheet. If the company fails and defaults, the lender can pursue the guarantor personally for the outstanding balance, potentially leading to bankruptcy proceedings. The FCA requires lenders to carry out affordability checks on guarantors, but directors should take independent legal advice before signing any guarantee document, particularly unlimited ones.

Speed and process differences

Unsecured loans can complete significantly faster than secured ones because there is no valuation, legal charge registration, or conveyancing involved. Many fintech lenders offer decisions within 24 hours and drawdown within two to five working days for loans under £150,000, based primarily on open banking data and credit files.

Secured loans involve more steps: asset valuation, solicitor sign-off, registration of the charge at Companies House, and in some cases Land Registry filings. A straightforward commercial mortgage or secured business loan typically takes four to twelve weeks from application to drawdown. This matters when timing is critical, for example when buying stock ahead of peak season or completing on a property purchase. If speed is the priority and the borrowing requirement is modest, unsecured lending is usually the practical route even if the rate is higher.

Which structure suits which situation

Secured lending tends to suit businesses that need larger sums, have tangible assets on the balance sheet, can tolerate a longer process, and want to minimise the cost of borrowing over a multi-year term. Property purchase, large capital equipment, and major refurbishments are typical use cases where securing the loan makes commercial sense.

Unsecured lending works better for working capital, short-term cash flow gaps, smaller growth investments, or situations where speed matters more than rate. Businesses without significant assets, including many professional services firms and early-stage technology companies, often have no choice but to use unsecured products. In those cases, comparing APRs across multiple lenders and scrutinising any personal guarantee terms carefully are the most important steps before signing. A broker with whole-of-market access can help identify lenders whose criteria match your specific trading profile.

Checking your position before you apply

Before approaching any lender, it is worth establishing which category you are realistically eligible for. Pull your latest filed accounts and management accounts, check your Companies House record for any existing charges, and obtain a copy of your business credit report from a bureau such as Experian or Creditsafe. If you own commercial property or equipment with meaningful equity, note the approximate value and any outstanding finance secured against it.

For personal guarantees, make a clear-eyed assessment of your personal financial position, your home equity, savings, and other liabilities, before committing. Some lenders will negotiate a cap on the guarantee amount or accept a debenture over company assets in place of a personal guarantee if the business has sufficient net assets. Those concessions are easier to obtain before you accept an offer than after, so raise them early in the conversation with the lender or broker.

Step-by-step

1. Establish how much you need and over what term, as this narrows whether secured or unsecured products are even available to you.
2. List your company's tangible assets and check for existing charges at Companies House to understand what security you could offer.
3. Obtain your business credit report and review your last two years of filed accounts to gauge how underwriters will see your application.
4. Decide your personal risk appetite: are you willing to sign a personal guarantee, and if so, would you seek a cap on the amount?
5. Compare products across both categories using APR, total cost of credit, and any early repayment charges rather than headline rate alone.
6. If applying for secured finance, factor the longer timeline into your planning and instruct a solicitor early to avoid delays at charge registration.

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Frequently asked questions

By Oliver Mackman, Director, Best Business Loans Ltd. Last reviewed 2026-06-02.