100% Mortgage Loan: How It Works

A 100% mortgage loan allows you to purchase a property without providing a cash deposit, with the lender financing the full purchase price. While these mortgages were once more widely available, they are now considerably less common and usually require a stronger lending structure than a standard mortgage.

For many Enness clients, the question is not simply whether 100% finance is possible, but how it can be structured. While mainstream lenders typically focus on deposit size, affordability and standard income, specialist lenders and private banks may consider wider wealth, investment portfolios, existing assets, international income and long-term banking relationships.

This is particularly relevant for entrepreneurs, business owners, international buyers and high-net-worth individuals whose financial circumstances do not fit conventional lending criteria.

This guide explains how 100% mortgage loans work, who may qualify, the alternatives available and the specialist financing options that continue to exist in today’s global property market.

Can You Get a 100% Mortgage?

Yes, although traditional 100% mortgages are now relatively uncommon.

A 100% mortgage enables you to borrow the entire purchase price of a property without contributing a cash deposit. Following the global financial crisis, many mainstream lenders significantly reduced or withdrew these products because lending at 100% loan-to-value carries greater risk.

However, specialist lenders and private banks may still offer solutions that effectively provide 100% financing where borrowers have strong financial profiles, additional assets or alternative security available.

For high-net-worth borrowers, achieving 100% financing often looks different from a traditional no-deposit mortgage. Instead of relying solely on income and a property deposit, lenders may consider wider wealth, investment portfolios, assets under management, existing property holdings or bespoke private banking facilities when structuring a loan.

Key Takeaways

What Is a 100% Mortgage Loan?

A 100% mortgage loan, also referred to as a 100% loan-to-value mortgage or 100% LTV mortgage, is a mortgage where the lender finances the entire purchase price of a property. Unlike a conventional mortgage, which normally requires a borrower to contribute a deposit, a 100% mortgage removes the need for an upfront cash deposit.

Although often described as a no-deposit mortgage, a true 100% mortgage does not necessarily mean the lender takes on all of the risk. In many specialist lending scenarios, additional assets, investment portfolios, guarantees or existing property may provide the lender with further security while allowing the borrower to preserve liquidity.

For example, if you were purchasing a property valued at £2 million, a traditional lender might require a deposit of at least £200,000 before offering a 90% mortgage. Under a genuine 100% mortgage structure, the lender would finance the full £2 million purchase price, allowing you to complete the transaction without contributing a cash deposit.

While this may sound straightforward, the reality is more nuanced. Modern 100% mortgage solutions are typically available only where the lender has additional comfort around the borrower’s financial position. This may include significant investment assets, strong liquidity, an established relationship with a private bank, additional property security or another form of collateral that reduces the lender’s overall risk.

For this reason, borrowers seeking large mortgage loans or million pound mortgages often benefit from specialist advice. Rather than focusing solely on standard mortgage products, an experienced broker can assess whether alternative structures, such as an assets under management mortgage or a Lombard loan, may achieve the same commercial objective while providing greater flexibility.

How Does a 100% Mortgage Work?

A 100% mortgage works by allowing the borrower to finance the full value of the property purchase. Instead of contributing a cash deposit, the borrower relies on the lender agreeing to provide funding at 100% loan-to-value.

In practice, most lenders will only consider this where there is a strong reason to do so. This may include additional security, significant assets, a strong income profile, family support, an existing private banking relationship or wider wealth that gives the lender confidence in the borrower’s ability to repay.

For high-value transactions, a 100% mortgage may not always be structured as one simple mortgage. It may involve a combination of property finance, securities-backed lending, private banking facilities or other assets being used as collateral.

Typical 100% Mortgage Process

1. Initial assessment: The borrower’s objectives, property value, location and financial profile are reviewed.
2. Asset and income review: Lenders assess income, liquidity, investment assets, property holdings and wider wealth.
3. Security structure: The lender decides whether additional assets, guarantees or collateral are required.
4. Lender selection: Suitable private banks, specialist lenders or international finance providers are approached.
5. Terms and offer: The preferred lender issues indicative terms, followed by valuation, legal review and formal approval.
6. Completion: Funds are released once all lending, legal and security requirements are satisfied.

Why Are 100% Mortgages Less Common Today?

100% mortgages are less common because they carry more risk for lenders. If property values fall, the borrower may owe more than the property is worth. This is known as negative equity.

After the global financial crisis, many lenders became more cautious about high loan-to-value lending. As a result, most mainstream mortgage products now require borrowers to contribute a deposit, especially for higher-value properties or more complex borrowing scenarios.

That does not mean 100% finance is impossible. It means the structure usually needs to be stronger, more bespoke and supported by additional assets or a wider understanding of the borrower’s financial position.

Who Offers 100% Mortgages?

Traditional 100% mortgages are not widely available from mainstream lenders, but some lenders may consider no-deposit or high loan-to-value lending in specific circumstances.

For borrowers seeking larger or more complex loans, working with a specialist mortgage broker can be important. Enness works with private banks, specialist lenders and international finance providers to identify structures that may not be available through standard mortgage channels.

Common Misconceptions About 100% Mortgages

There are several misconceptions around 100% mortgages, particularly because true no-deposit lending is much less common than it once was. In reality, the right structure depends on the borrower, the property, the lender and the wider financial position.

How High-Net-Worth Borrowers Can Secure 100% Property Finance

For high-net-worth borrowers, 100% property finance is often achieved through a more sophisticated structure than a standard no-deposit mortgage.

A lender may consider the borrower’s full financial position, including income, liquidity, investment assets, business interests, property portfolio, international wealth and future banking relationship. This can allow a private bank or specialist lender to look beyond the property purchase alone.

For example, a client purchasing a £6 million property may prefer not to liquidate a substantial investment portfolio to fund a cash deposit. In some circumstances, a private bank may lend against both the property and the portfolio, allowing the client to preserve their investment strategy while still financing the purchase.

Common structures may include:

• Private bank lending using wider assets and relationship value.
• Assets under management where investment assets are held with the lender.
• Lombard lending secured against investment portfolios.
• Cross-collateralisation using other property or assets as additional security.
• Interest-only structures where appropriate for larger loans.
• Short-term bridging finance where speed or timing is important.

This is particularly relevant for entrepreneurs, business owners and international clients who may be asset-rich but have income profiles that do not fit mainstream lending criteria.

For these borrowers, the right solution may sit across several areas of specialist finance, including high-net-worth mortgages, private bank mortgages, interest-only mortgages and Lombard loans.

Can You Get a 100% Mortgage on an Investment Property?

Getting a 100% mortgage on an investment property is usually more difficult than securing finance for a main residence. Lenders will typically look closely at rental income, the borrower’s wider financial position, the property type, location, loan size and exit strategy.

However, some investors may be able to achieve high loan-to-value or effectively no-cash-deposit structures where there is additional security available. This may include other property assets, investment portfolios, private bank facilities or a broader property portfolio.

For investors, the most suitable route may not be a conventional 100% mortgage. Alternatives could include buy-to-let mortgage finance, property portfolio finance, bridging finance or commercial property finance, depending on the transaction.

What Are the Alternatives to a 100% Mortgage?

While genuine 100% mortgages still exist in some circumstances, they are no longer the only way to purchase a property without making a significant cash contribution. Many high-net-worth individuals achieve a similar outcome using specialist lending solutions that provide greater flexibility than a conventional no-deposit mortgage.

The most suitable option will depend on your overall financial position, the value of the property, the jurisdiction, your source of income and whether you hold assets that can be used as additional security.

For many borrowers, particularly those purchasing high-value property, these alternatives can provide greater flexibility than a traditional 100% mortgage while opening access to more competitive lending structures.

Who May Qualify for a 100% Mortgage?

Eligibility varies significantly between lenders. Rather than applying a single set of criteria, specialist lenders and private banks assess the overall strength of a borrower's financial profile.

Factors that may improve eligibility include:

• Strong and consistent income.
• Excellent credit history.
• Significant investment assets.
• Existing relationship with a private bank.
• Additional property that can be offered as security.
• Business ownership or substantial retained earnings.
• High net worth or substantial liquidity.
• Self-employed income or complex income structures.
• Foreign currency income or international earnings.
• Trust, company or family office ownership structures.
• Existing property portfolios or investment property holdings.

International buyers and entrepreneurs often have financial profiles that do not fit conventional underwriting models. In these situations, specialist lenders may take a broader view of wealth rather than relying solely on salary.

Working with an experienced broker provides access to lenders that understand more complex financial structures, particularly for high-net-worth mortgages, international mortgages and private bank mortgage solutions.

What Are the Risks of a 100% Mortgage?

Borrowing the full purchase price means you have no immediate equity in the property. While this can improve liquidity and preserve capital for investment opportunities, it also increases the lender's exposure and can increase the risks for the borrower.

Potential considerations include:

• Higher interest rates compared with lower loan-to-value mortgages.
• Greater risk of negative equity if property values fall.
• More detailed affordability and underwriting assessments.
• Fewer lenders offering suitable products.
• Additional security or assets may be required.
• Interest rate risk if borrowing costs rise.
• Currency risk for international borrowers or foreign currency income.
• Liquidity risk if investment assets are used as security.
• Refinancing risk if the lending structure is short-term or asset-backed.

For larger transactions, borrowers should consider both the short-term funding requirement and their longer-term wealth strategy. In many cases, preserving liquidity can create greater value than contributing a large cash deposit, provided the financing structure is appropriate.

What Costs Should You Expect?

Although a 100% mortgage removes the need for a cash deposit, borrowers should still budget for other costs associated with purchasing property.

Understanding the total cost of borrowing is just as important as securing a competitive interest rate. An experienced broker can help compare the overall cost of different lending structures rather than focusing on headline rates alone.

Why Work with Enness?

Enness specialises in arranging complex property finance for high-net-worth individuals, entrepreneurs, international buyers and clients whose borrowing requirements extend beyond standard mortgage products.

Unlike mainstream mortgage brokers, Enness regularly works with borrowers whose financial circumstances do not fit standard lending criteria. This includes business owners, private investors, international clients, family offices and high-net-worth individuals seeking bespoke financing solutions across multiple jurisdictions.

Our team works with an extensive network of private banks, specialist lenders and international finance providers to structure bespoke lending solutions for high-value residential property, investment property and complex cross-border transactions.

Whether you require a million-pound mortgage, a large mortgage, a private bank mortgage or a specialist solution using investment assets as security, we help clients identify the most appropriate financing strategy for their circumstances.

Speak to an Enness Specialist

Frequently Asked Questions

Can you still get a 100% mortgage?

Yes, although genuine 100% mortgages are considerably less common than they once were. Most mainstream lenders now require a deposit, but some specialist lenders and private banks may still offer solutions that effectively provide 100% financing where borrowers have strong financial profiles or can offer alternative security.

Can you get a 100% mortgage in the UK?

Yes, but they are rare. In the UK, most mainstream lenders require a deposit, although some specialist lenders, building societies and private banks may consider high loan-to-value or no-deposit structures in specific circumstances.

What is a 100% loan-to-value mortgage?

A 100% loan-to-value mortgage allows a borrower to finance the full purchase price of a property without contributing a cash deposit. Instead of borrowing 80% or 90% of the property’s value, the lender provides finance for 100% of the purchase price.

Who offers 100% mortgages?

True 100% mortgages are not widely available from mainstream lenders. They are more likely to be found through specialist lenders, selected building societies, private banks or bespoke finance providers that can assess wider assets, income and security.

Can first-time buyers get a 100% mortgage?

Some first-time buyers may qualify for specialist no-deposit mortgage products or family-supported mortgage schemes. Eligibility usually depends on affordability, credit history, income stability and whether additional security or family support is available.

Can self-employed applicants get a 100% mortgage?

Self-employed applicants may be considered, but the application is likely to require detailed evidence of income, business performance, retained profits, assets and overall affordability. Specialist lenders may take a broader view than mainstream banks.

Can international buyers obtain 100% property finance?

Yes, in certain circumstances. International borrowers may be able to access specialist lenders and private banks that understand cross-border wealth, multiple income sources and international assets. Availability depends on the borrower’s profile and the country where the property is being purchased.

Can you buy an investment property with a 100% mortgage?

Investment property finance is generally assessed more conservatively than residential lending. However, experienced investors may achieve similar outcomes through specialist lending structures, additional property security, investment portfolios or private banking facilities.

Can companies obtain a 100% mortgage?

In some cases, company or SPV borrowers may be able to access high loan-to-value finance, particularly where there is strong additional security, wider assets, a robust business case or a broader relationship with the lender.

Do private banks offer 100% mortgages?

Private banks may offer bespoke lending structures that achieve the same objective as a traditional 100% mortgage. Rather than focusing solely on the property itself, they may assess a client’s wider wealth, liquidity, investment assets and long-term banking relationship.

Can I get a 100% mortgage without assets under management?

Yes. While some private banks require clients to transfer investments, others offer more flexible lending solutions. Enness can also arrange mortgages without assets under management through selected lenders.

Can I use shares or investments instead of a deposit?

In some circumstances, yes. Borrowers with substantial investment portfolios may be able to use securities-backed lending or a Lombard loan to support a property purchase while avoiding the need to liquidate assets.

What is the highest loan-to-value mortgage available?

The highest loan-to-value available depends on the lender, borrower profile, property type and jurisdiction. While mainstream lenders often limit borrowing below 100%, specialist lenders and private banks may consider higher LTV structures with additional security.

Are 100% mortgages more expensive?

They can be, but not always. Pricing depends on the lender, borrower profile, loan size, security, interest rate environment and whether the borrower has a wider banking or investment relationship with the lender.

Do 100% mortgages require mortgage insurance?

This depends on the country, lender and structure. Some jurisdictions may use mortgage insurance for high loan-to-value lending, while private banks and specialist lenders may instead rely on additional assets, guarantees or collateral.

How long does a 100% mortgage take to arrange?

Timelines vary depending on the complexity of the case. Straightforward applications may progress relatively quickly, while private bank or specialist lending structures involving assets, international income or additional security can take longer.

Can you refinance into a 100% mortgage?

It may be possible in certain circumstances, although lenders will assess the property value, existing debt, affordability, wider assets and the purpose of the refinance. Specialist advice is usually important for high loan-to-value refinancing.

Are 100% mortgages available for overseas property?

They may be available in some markets, but lending rules vary significantly by country. International property buyers may need to use private banks, local lenders or cross-border finance structures depending on the property location and borrower profile.

What alternatives are there to a 100% mortgage?

Alternatives include private bank mortgages, Lombard loans, guarantor mortgages, family-supported lending, bridging finance and specialist lending secured against investment assets or additional property.

Is a 100% mortgage right for me?

That depends on your financial circumstances, long-term objectives and the structure of the transaction. While avoiding a cash deposit may preserve liquidity, other specialist lending solutions may provide greater flexibility or more competitive terms depending on your overall wealth and borrowing requirements.

Related Specialist Finance Solutions

Depending on your circumstances, a traditional 100% mortgage may not always be the most appropriate solution. These specialist finance options may offer greater flexibility depending on your assets, income structure and borrowing objectives.

• Private Bank Mortgages – Bespoke lending through leading private banks.
• High Net Worth Mortgages – Tailored mortgage solutions for affluent borrowers with complex financial circumstances.
• Million Pound Mortgages – Specialist finance for high-value residential property purchases.
• Large Mortgages – Flexible lending solutions for substantial borrowing requirements.
• Mortgages Without Assets Under Management – Private banking solutions without transferring investment portfolios.
• Lombard Loans – Borrowing secured against investment portfolios.
• International Mortgages – Cross-border mortgage solutions for overseas property purchases.
• Bridging Finance – Short-term funding for time-sensitive property transactions.

Final Thoughts

Although traditional 100% mortgages are no longer as widely available as they once were, they have not disappeared entirely. Today's lending market offers a far broader range of specialist financing solutions that can help borrowers purchase property without making a substantial cash deposit.

For high-net-worth individuals, entrepreneurs, business owners and international buyers, the right solution often extends beyond a conventional mortgage. Private banking relationships, investment portfolios, alternative security and bespoke lending structures can all play an important role in securing competitive finance while preserving liquidity and supporting wider wealth planning objectives.

Because every lender assesses risk differently, obtaining specialist advice at an early stage can significantly improve your options. An experienced broker can identify lenders that understand complex income structures, international wealth and high-value property transactions, helping you access solutions that may not be available through the mainstream market.

If you're considering a 100% mortgage loan or exploring alternative ways to finance your next property purchase, our team can help you understand the options available and structure a solution tailored to your circumstances.