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When you apply for a mortgage or property loan, lenders will usually ask you to provide documents that confirm who you are, where you live and, in some cases, where your funds are coming from.
This is a normal part of the mortgage application process. It helps lenders, brokers and finance providers complete their identity, anti-money laundering and compliance checks.
At Advocate Finance, we know that gathering documents can sometimes feel confusing, especially if different lenders ask for slightly different things. This guide explains the common forms of ID and proof of address that may be requested, along with when certified copies may be needed.
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Why do lenders ask for ID and proof of address?
Lenders need to check that applicants are who they say they are. They also need to confirm residential address details and keep appropriate records for compliance purposes.
These checks are usually part of customer due diligence and anti-money laundering requirements. In simple terms, lenders need to verify your identity before they can assess and complete a mortgage or loan application.
You will normally need to provide separate documents for proof of ID and proof of address. In most cases, the same document cannot be used for both.
Here at Advocate Finance, we need these documents on file to comply with UK law.
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What is proof of ID?
Proof of ID is used to confirm your identity. It normally needs to include your full name and a clear photograph.
Common examples of proof of ID include:
- Valid UK passport
- Valid UK photocard driving licence
- Valid non-UK passport
- Valid EU passport or national identity card
- HM Forces or police officer photo card, where accepted by the lender
If you are using a non-UK passport, the lender may also ask for evidence of your right to live or work in the UK.
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What is proof of address?
Proof of address confirms where you live. Lenders usually ask for a recent document showing your full name and current residential address.
Most lenders ask for proof of address dated within the last three months, although some documents, such as council tax bills, are issued annually and may be accepted if they relate to the current tax year.
Common examples of proof of address include:
- Bank or Building Society Statement
- Council Tax Bill
- Utility Bill (Gas, Electricity & Water)
- Credit Card Statement
- Sky or Cable TV Bills
- Landline Telephone Bill (not a mobile phone bill)
- Mortgage Statement
- Life Insurance Policy (must be outside of the cancellation period)
- Motor Insurance Certificate (must be outside of the cancellation period – do not accept cover notes)
- HMRC documentation (PAYE Coding Notice/Tax Notification/Self-Assessment/Statement of Account/NI contributions bill).
- Notification letter from Benefits Agency/Local Authority confirming your right to benefits (Department for Works and Pensions, Job Centre Plus, Benefits Agency or Veterans Agency)
Mobile phone bills are not always accepted as proof of address, so it is best to check before submitting one.
If there is more than one applicant, each person will usually need to provide their own separate proof of ID and proof of address.
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Can online statements be used as proof of address?
Some lenders accept downloaded bank statements or online documents, while others may ask for original, posted copies or certified copies.
This varies by lender, application type and risk profile. For example, a straightforward buy-to-let mortgage may have different document requirements from a bridging loan, commercial mortgage or limited company application.
Before requesting paper copies, it is worth checking what the lender will accept. In many cases, a clear downloaded PDF may be enough, but some lenders still have stricter requirements.
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What other documents might lenders ask for?
ID and proof of address are usually only part of the paperwork needed for a mortgage or loan application.
Depending on the type of finance, lenders may also ask for:
- Recent bank statements
- Payslips
- P60
- SA302s and tax year overviews & calculations
- Company accounts
- Proof of deposit
- Evidence of source of funds
- Existing mortgage statements
- Rental income evidence
- Tenancy agreements
- Property details
- Solicitor details
- Company documents for limited company applications
- Details of other properties owned – portfolio
- Refurbishment or exit strategy information for bridging loans
The exact documents needed will depend on the lender, the applicant and the type of finance being arranged.
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Why the source of funds may be requested
Lenders may ask where your deposit or funds are coming from. This is especially common where funds come from savings, a property sale, a gift, business income, inheritance or overseas sources.
This does not mean there is a problem with the application. It is usually part of the lender’s anti-money laundering checks and helps them understand the source and origin of the money being used.
For property investors, landlords and limited company borrowers, lenders may also ask for extra details about business income, retained profits, rental income or portfolio structure.
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Certified Copies of Proof of Address and ID
In some cases, lenders may ask for documents to be certified.
A certified copy is a copy of a document that has been checked against the original by an approved professional. The professional confirms that the copy is a true copy of the original document.
For photo ID, the lender may also ask for a true likeness certification. This means the person certifying the document confirms that the photo is a true likeness of the applicant.
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Example wording for certified documents
Where a lender asks for a certified true copy, the professional may need to write:
“I certify that this is a true copy of the original document.”
They should then include:
- Their full name
- Their position or job title
- Their company or organisation
- The date
- Their professional body or regulated body, where relevant
- Their signature
Some lenders may require a wet signature rather than an electronic signature.
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Example wording for true likeness certification
For documents with a photograph, such as a passport or photocard driving licence, the lender may ask for true likeness wording.
In that case, the person certifying may need to write:
“I certify that this is a true likeness of [name] and I have seen the original document.”
They may also need to see the applicant in person and compare them with the original photo ID.
Certification requirements can vary, so always check the lender’s exact wording before arranging certification.
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Who can certify mortgage documents?
The professionals accepted for certification can vary by lender, but they may include:
- Solicitor
- Barrister
- Accountant
- Bank or building society official
- Post office – To find out more about this service, click here
- FCA-regulated mortgage or finance broker
Professionals can certify if they have seen the original document or have the software to verify it’s authenticity electronically.
Not every lender accepts every type of certifier. If you are unsure, speak to one of our Advisers before paying for certification or sending documents.
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Do all mortgage applications need certified documents?
No. Many applications now use digital ID checks, secure document uploads or electronic verification.
However, certified documents may still be requested where:
- The lender needs additional verification
- The applicant is not meeting the broker or lender in person
- Documents are unclear
- There is a higher-risk element to the application
- The applicant lives overseas
- The application involves a company, trust or complex ownership structure
- The lender’s criteria specifically require certification
This is why it is important to follow the lender’s instructions rather than assuming every lender works the same way.
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Tips for avoiding delays
To reduce delays, make sure your documents are:
- Clear and readable
- In date
- Showing your full name
- Showing your current address
- Not cropped or partially hidden
- Consistent with the details on your application
- Provided in the format requested by the lender
If your name or address has recently changed, you may need to provide extra evidence.
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How Advocate Finance can help
Advocate Finance helps clients arrange mortgages and property finance across a wide range of lending areas, including buy-to-let mortgages, bridging finance, commercial mortgages, semi-commercial finance, HMO mortgages and refurbishment loans.
Different lenders can ask for different documents. Some are happy with digital verification, while others may need certified copies or additional evidence before they can proceed.
If you are applying for a mortgage or property loan and are unsure what documents you need, Advocate Finance can guide you through the process and help you prepare the right paperwork for your application.
Please contact us directly for more information, or use the Get in Touch With Us Today feature at the bottom of this page.
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FAQs
Can I use the same document for proof of ID and proof of address?
Usually no. Most lenders require one document for proof of ID and a separate document for proof of address.
Is a driving licence proof of ID or proof of address?
A photocard driving licence is often used as proof of ID. Some lenders may accept it as proof of address, but it usually cannot be used for both ID and address on the same application.
How recent does proof of address need to be?
Many lenders ask for proof of address dated within the last three months. Council tax bills may be accepted if they relate to the current tax year.
Are mobile phone bills accepted as proof of address?
Mobile phone bills are often not accepted. A utility bill, bank statement, council tax bill or other official document is usually safer.
Do I need certified documents for a mortgage?
Not always. Some lenders use digital ID checks or accept uploaded documents. Others may ask for certified copies, especially if extra verification is needed.
Who can certify ID documents?
This depends on the lender. Common options include solicitors, accountants, bank officials, Post Office services and FCA-regulated mortgage or finance brokers.
