UK Mortgage Rates

Mortgage products in the united kingdom

By Jeff [source]

About this dataset

This dataset contains information on thousands of mortgage products available in the UK, including the interest rate, APR, revert rate, fees, and initial rate period. This data can be used to compare different mortgage products and find the best deal for your needs

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How to use the dataset

This dataset contains information on thousands of mortgage products available in the UK, including the interest rate, APR, revert rate, fees, and initial rate period.

To use this dataset, simply download it and then import it into your favorite spreadsheet program. You can then use the data to compare mortgage rates across different products and banks.

This dataset can be used to help you: - Compare mortgage rates from different banks - Find the best mortgage product for your needs - Understand how fees and other charges affect the overall cost of a mortgage

Research Ideas

• Analysing the different mortgage products available on the market
• Benchmarking against other products in order to get a competitive rate
• Finding products that have low fees and revert rates

Acknowledgements

If you use this dataset in your research, please credit the original authors. Data Source

License

See the dataset description for more information.

Columns

File: UK_Mortgage_Rate.csv | Column name | Description | |:----------------------------|:----------------------------------------------------------------| | SKU | The product's SKU. (String) | | BANK_NAME | The name of the bank that offers the mortgage product. (String) | | MTG_PRODUCT_SUBTITLE | The subtitle of the mortgage product. (String) | | MTG_PRODUCT_TYPE_RAW | The raw product type of the mortgage product. (String) | | MTG_PRODUCT_YEARS | The number of years of the mortgage product. (Integer) | | MTG_INITIAL_RATE_PCT | The initial rate percentage of the mortgage product. (Float) | | MTG_APR_PCT | The APR percentage of the mortgage product. (Float) | | MTG_REVERT_RATE | The revert rate of the mortgage product. (Float) | | MTG_FEES_TOTAL | The total fees of the mortgage product. (Float) | | MTG_INITIAL_RATE_MONTHS | The initial rate months of the mortgage product. (Integer) | | SCAN_DATE | The date that the mortgage product was scanned. (Date) |

Acknowledgements

If you use this dataset in your research, please credit the original authors. If you use this dataset in your research, please credit Jeff.

Mortgage Approvals in the United Kingdom decreased to 64.68 Thousand in August from 65.16 Thousand in July of 2025. This dataset provides the latest reported value for - United Kingdom Mortgage Approvals - plus previous releases, historical high and low, short-term forecast and long-term prediction, economic calendar, survey consensus and news.

Mortgage rates surged at an unprecedented pace in 2022, with the average 10-year fixed rate doubling between March and December of that year. In response to mounting inflation, the Bank of England implemented a series of rate hikes, pushing borrowing costs steadily higher. By August 2025, the average 10-year fixed mortgage rate had climbed to 4.49 percent. As financing becomes more expensive, housing demand has cooled, weighing on market sentiment and slowing house price growth. How have the mortgage hikes affected the market? After surging in 2021, the number of residential properties sold fell significantly in 2023, dipping to just above *** million transactions. This contraction in activity also dampened mortgage lending. Between the first quarter of 2023 and the first quarter of 2024, the value of new mortgage loans declined year-on-year for five consecutive quarters. Even as rates eased modestly in 2024 and housing activity picked up slightly, volumes remained well below the highs recorded in 2021. How are higher mortgages impacting homebuyers? For homeowners, the impact is being felt most acutely as fixed-rate deals expire. Mortgage terms in the UK typically range from two to ten years, and many borrowers who locked in historically low rates are now facing significantly higher repayments when refinancing. By the end of 2026, an estimated five million homeowners will see their mortgage deals expire. Roughly two million of these loans are projected to experience a monthly payment increase of up to *** British pounds by 2026, putting additional pressure on household budgets and constraining affordability across the market.

Abstract copyright UK Data Service and data collection copyright owner.The 5% Sample Survey of Building Society Mortgage Completions (BSM) has been in existence since 1965. The Archive holds data from 1974. Monthly returns, giving detailed information on a nominal 5% sample of all mortgage completions, have been submitted on a voluntary basis by most building societies to the Department of Environment who process the data on a quarterly basis. The survey results have served as the offical source of statistics on the owner-occupied housing market, providing a wealth of information on mortgage advances, dwelling prices and the characteristics of borrowers and properties. An increased share of the mortgage market being accounted for by other lenders and a widening range of mortgage products during the 1980s have necessitated change, leading to the BSM being succeeded by the Survey of Mortgage Lenders (SML) in 1992 (see GN: 33254). An important consideration for users of the data is that the SML figures allow continuity with the BSM survey results to be maintained for a reasonable period. Main Topics: Building Society code, date mortgage completed, whether dwelling is wholly or partly occupied by borrower. Mortgage amount, whether solely for purchase of property, period of mortgage, gross rate of interest, repayment method. Purchase price and whether discounted in any way. Location of dwelling, whether new, age of dwelling, type, number of habitable rooms, whether garage, rateable value. Number and sex of borrowers, age of main borrower, basic income, other income, total income, whether applicant previously owner occupier, previous tenure, whether main borrower nominated by LA under support lending scheme. Building Societies are divided into four strata according to the size of their assets. All the largest societies are asked to complete questionnaires on a sample of 5 per cent of their new mortgage advances. Mortgages are included if their reference numbers end in specified digits chosen so that every twentieth mortgage is selected. Societies in the next stratum are arranged in order of size of assets and alternate societies chosen each of which are asked to complete questionnaires on 10 per cent of their mortgages. In the next stratum 20 per cent of the mortgages of every fourth society are obtained. The smallest societies are completely excluded.

Mortgage Rate in the United Kingdom decreased to 6.78 percent in September from 6.86 percent in August of 2025. This dataset provides - United Kingdom BBA Mortgage Rate- actual values, historical data, forecast, chart, statistics, economic calendar and news.

This data set contains Help to Buy: Equity Loan statistics at postcode district level. The figures cover the launch of the scheme on 1 April 2013 until 31 October 2014. Information on the allocation of completed sales to postcode districts is derived using the latest available information on the full postcode for each scheme. Figures have been attributed to an individual postcode sector by reconciling data against the ONS Postcode Directory (May 2014) where possible. Figures may be subject to revision later in the year. For sales before 31 March 2014, properties are included under the local authority district to which they were initially allocated. In some cases, this differs from latest information, which forms the basis of the first column of local authority district figures. Figures for some local authorities may be subject to revisions later in the year. Although local authority information is validated against other geographic data at the time of data entry, detailed reconciliation of the data, conducted twice a year, may result in a small number of changes to these monthly releases, for example where a new development crosses a local authority boundary. An equity loan is Government financial assistance given to eligible applicants to purchase an eligible home through a Government equity mortgage secured on the home. The Government equity mortgage is ranked second in priority behind an owner’s main mortgage lender. This scheme offers up to 20 per cent of the value as Government assistance to purchasers buying a new build home. The buyer must provide a cash deposit of at least 5 per cent and a main mortgage lender must provide a loan of at least 75 per cent. The Government assistance to buy is made through an equity loan made by the Homes and Communities Agency (HCA) to the purchaser. Help to Buy equity loans are only available on new build homes and the maximum purchase price is £600,000. Equity loan assistance for purchasers is paid via house builders registered with the HCA to participate in the Help to Buy equity loan initiative. The payment is made to builders (via solicitors) at purchaser legal completion. The equity loan is provided without fees for the first five years of ownership. The property title is held by the home owner who can therefore sell their home at any time and upon sale should provide the government the value of the same equity share of the property when it is sold. For further information see Help to Buy (equity loan) scheme monthly statistics.

Value of outstanding residential mortgage lending by postcode sector for 9,273 Great Britain postcode sectors. Areas with a small number of loans cannot be reported because it might compromise individuals' data privacy. These figures form part of a joint data reporting exercise, covering lending to small and medium enterprises (SMEs), residential mortgages and personal loans, coordinated by the British Bankers' Association (BBA) and the Council of Mortgage Lenders (CML). Data covering lending to SMEs and personal loans is published by the BBA. Participating lenders comprise: Barclays Bank, Clydesdale Bank & Yorkshire Bank, HSBC Bank, Lloyds Banking Group, Nationwide Building Society, Santander UK and RBS. Collectively these institutions account for about 60 per cent of bank lending to SMEs, 73 per cent of mortgage lending and 60 per cent of unsecured personal loan markets in Great Britain. More information from CML website.

Expenditure on rent by renters and mortgages by mortgage holders, by region and age from the Living Costs and Food Survey for the financial year ending 2022. Data is presented as a proportion of total expenditure and a proportion of disposable income.

These National Statistics provide monthly estimates of the number of residential and non-residential property transactions in the UK and its constituent countries. National Statistics are accredited official statistics.

England and Northern Ireland statistics are based on information submitted to the HM Revenue and Customs (HMRC) Stamp Duty Land Tax (SDLT) database by taxpayers on SDLT returns.

Land and Buildings Transaction Tax (LBTT) replaced SDLT in Scotland from 1 April 2015 and this data is provided to HMRC by https://www.revenue.scot/">Revenue Scotland to continue the time series.

Land Transaction Tax (LTT) replaced SDLT in Wales from 1 April 2018. To continue the time series, the https://gov.wales/welsh-revenue-authority">Welsh Revenue Authority (WRA) have provided HMRC with a monthly data feed of LTT transactions since July 2021.

LTT figures for the latest month are estimated using a grossing factor based on data for the most recent and complete financial year. Until June 2021, LTT transactions for the latest month were estimated by HMRC based upon year on year growth in line with other UK nations.

LTT transactions up to the penultimate month are aligned with LTT statistics.

Go to Stamp Duty Land Tax guidance for the latest rates and information.

Go to Stamp Duty Land Tax rates from 1 December 2003 to 22 September 2022 and Stamp Duty: rates on land transfers before December 2003 for historic rates.

The latest release was published 09:30 30 September 2025 and was updated with provisional data from completed transactions during August 2025.

The next release will be published 09:30 31 October 2025 and will be updated with provisional data from completed transactions during September 2025.

https://webarchive.nationalarchives.gov.uk/ukgwa/20240320184933/https://www.gov.uk/government/statistics/monthly-property-transactions-completed-in-the-uk-with-value-40000-or-above">Archive versions of the Monthly property transactions completed in the UK with value of £40,000 or above are available via the UK Government Web Archive, from the National Archives.

This data set contains Help to Buy: Equity Loan statistics at postcode district level. For data released from 5 March 2015 onwards, the Homes and Community Agency (HCA) have revised the completion date for the entire Help to Buy Equity Loan time series. The HCA have stopped counting payment date (when the money out is paid out by the HCA) and now report on the expected actual completion date. It is more accurate and is closer to the live situation, especially when HCA now recognise an asset based on a completion, rather than exchange and approved claim. As a result (and due to reinstating accounts) HCA have seen movement of actual completions dates. There should not be this level of difference moving forward, it was a one off activity. The figures cover the launch of the scheme on 1 April 2013 until 30 September 2016. Figures have been attributed to an individual constituency by reconciling data against the ONS Postcode Directory (May 2014) where possible. Figures for some constituencies may be subject to revision later in the year. For sales before 31 March 2014, properties are included under the local authority district to which they were initially allocated. In some cases, this differs from latest information, which forms the basis of the first column of local authority district figures. Figures for some local authorities may be subject to revisions later in the year. Although local authority information is validated against other geographic data at the time of data entry, detailed reconciliation of the data, conducted twice a year, may result in a small number of changes to these monthly releases, for example where a new development crosses a local authority boundary. An equity loan is Government financial assistance given to eligible applicants to purchase an eligible home through a Government equity mortgage secured on the home. The Government equity mortgage is ranked second in priority behind an owner’s main mortgage lender. This scheme offers up to 20 per cent of the value as Government assistance to purchasers buying a new build home. The buyer must provide a cash deposit of at least 5 per cent and a main mortgage lender must provide a loan of at least 75 per cent. The Government assistance to buy is made through an equity loan made by the Homes and Communities Agency (HCA) to the purchaser. Help to Buy equity loans are only available on new build homes and the maximum purchase price is £600,000. Equity loan assistance for purchasers is paid via house builders registered with the HCA to participate in the Help to Buy equity loan initiative. The payment is made to builders (via solicitors) at purchaser legal completion. The equity loan is provided without fees for the first five years of ownership. The property title is held by the home owner who can therefore sell their home at any time and upon sale should provide the government the value of the same equity share of the property when it is sold. For further information see Help to Buy (equity loan) scheme monthly statistics.

Interest rate on new mortgages in the United Kingdom decreased to 4.28 percent in July from 4.34 percent in June of 2025. This dataset includes a chart with historical data for the United Kingdom Interest Rate on New Mortgages.

Interest Rate on Outstanding Mortgages in the United Kingdom remained unchanged at 3.88 percent in July. This dataset includes a chart with historical data for the United Kingdom Interest Rate on Outstanding Mortgages.

Mortgage repayments as a percentage of monthly equivalised disposable household income, throughout the house price and income distribution.

This data set contains Help to Buy: Equity Loan statistics at post code sector level.

The figures cover the launch of the scheme on 1 April 2013 until 31 October 2014.

Information on the allocation of completed sales to postcode sectors is derived using the latest available information on the full postcode for each scheme. Figures have been attributed to an individual postcode sector by reconciling data against the ONS Postcode Directory (May 2014) where possible. Figures may be subject to revision later in the year.

For sales before 31 March 2014, properties are included under the local authority district to which they were initially allocated. In some cases, this differs from latest information, which forms the basis of the first column of local authority district figures. Figures for some local authorities may be subject to revisions later in the year. Although local authority information is validated against other geographic data at the time of data entry, detailed reconciliation of the data, conducted twice a year, may result in a small number of changes to these monthly releases, for example where a new development crosses a local authority boundary.

An equity loan is Government financial assistance given to eligible applicants to purchase an eligible home through a Government equity mortgage secured on the home. The Government equity mortgage is ranked second in priority behind an owner’s main mortgage lender.

This scheme offers up to 20 per cent of the value as Government assistance to purchasers buying a new build home. The buyer must provide a cash deposit of at least 5 per cent and a main mortgage lender must provide a loan of at least 75 per cent.

The Government assistance to buy is made through an equity loan made by the Homes and Communities Agency (HCA) to the purchaser.

Help to Buy equity loans are only available on new build homes and the maximum purchase price is £600,000. Equity loan assistance for purchasers is paid via house builders registered with the HCA to participate in the Help to Buy equity loan initiative. The payment is made to builders (via solicitors) at purchaser legal completion.

The equity loan is provided without fees for the first five years of ownership.

The property title is held by the home owner who can therefore sell their home at any time and upon sale should provide the government the value of the same equity share of the property when it is sold.

For further information see
Help to Buy (equity loan) scheme monthly statistics.

Description Summary Belvoir Group (BLV) is one of the largest property franchisors in the UK. BLV is a resilient business with 26 years of consecutive earnings growth, high margins and low capital needs. The company has been growing FCF per share at 15-25% per year, while also paying a 4.5% dividend yield. At a 10% 2023 FCF yield with a net cash balance sheet, BLV provides an attractive opportunity for small funds and personal accounts. Business background BLV started out in 1995 as a pure-play lettings franchisor. Over time they complemented the business with estate sales and financial services. Today, BLV operates 338 franchised offices under six different regional brands: Belvoir (159 offices), Northwood (91), Newton Fallowell (39), Nicholas Humphreys (20), Lovelle (16) and Mr and Mrs Clarke (13). They also operate a network of 284 mortgage advisors. best stock screener best investing platforms best stock screeners At its core this is a franchise business. BLV derives 80% of its gross profit from royalties paid by their property franchisees. BLV provides them with central support (e.g. a known brand, operational best practices, back-office, training and certifications, valuation and rental data/services, regional advertising and assistance in doing acquisitions) in return for a 10-12% royalty fee of the monthly revenue. As most know, franchise businesses possess attractive features with recurring revenues, high incremental margins and little capex. BLV’s franchisees are largely local entrepreneurs with 100% skin in the game. The majority operate just one to three offices. There are no large established franchisees as is the case with the major hotel and fast-food chains. The £150-200k start-up costs of running a BLV office, means that the franchisees generally have put all their money into the business. Alignment of incentives on the operating level doesn’t get much better than this. This is why the franchisees consistently outgrow the industry by a few percentage points. When the first lockdown ended, it took some of the corporate estate agency chains two months to reopen, while BLV’s franchisees opened their doors on the first day possible. The company reports into two divisions, property franchising and financial services. The former can be split between lettings and estate sales. Lettings (60% of gross profit). This is by far the best part of the business. Lettings is the managing of residential property on behalf of a landlord. This includes finding a tenant, doing the related administration/compliance, property visits and managing the tenant relationship. The franchisees charge landlords 1-1.5% of the monthly rent. Through its franchisees, BLV manages 75.5k properties, up from 37k in 2015. This segment has been growing gross profit at a low teens CAGR (incl. M&A). Lettings is a resilient business as people have to pay rent no matter the state of the economy. Organic growth has been positive every year since inception. Estate sales (20% of gross profit). The business of selling houses, which clearly is not as attractive as lettings. BLV’s franchisees charge a 1% commission on the value of the house. BLV sold 11k houses in 2022, up from 7k in 2017. Like lettings, gross profit has been growing at a low teens CAGR (incl. M&A). This segment is less cyclical than the overall housing market as they have historically grown above market, continue to attract new franchisees and generate 93% of gross profit outside of the Greater London area (less prone to boom and busts cycles). In 2022, BLV saw a 11% decrease in housing transactions compared to a 15% drop for the overall UK housing market. Nvidia EV/EBITDA Kroger EV/EBITDA Kraft EV/EBITDA Chevron EV/EBITDA Verizon EV/EBITDA Financial services (20% of gross profit). BLV manages a network of 284 mortgage advisors. The majority of them (85%) are self-employed. While technically not a franchise business, it works similarly. BLV provides central support and leads in return for a 25% cut of the fees. BLV works with one of UK’s leading mortgage intermediaries, the Mortgage Advice Bureau (MAB). MAB offers BLV access to >90 lenders, looks after compliance and processes the mortgages. The typical mortgage fee is 0.3% of the amount borrowed. In terms of cyclicality, this segment sits between lettings and estate sales. More than 90% of mortgages in the UK are two to five years in length, after which it typically gets refinanced. As such, there is a stable stream of mortgage renewals each year. Around half of the segment is refinancing-related and the other half is tied to housing transactions. Industry overview The UK counts 4.6m private-rented properties and sells 1.2m houses in a normal year. The majority of these are managed and sold by one of the more than 20k estate agencies/lettings offices. At least 15k of these are independents. The rest consists of agency networks that range from a handful of offices to in the hundreds. The largest...

This data set contains Help to Buy: Equity Loan statistics at parliamentary constituency level.

The figures cover the launch of the scheme on 1 April 2013 until 31 October 2014.

Figures have been attributed to an individual constituency by reconciling data against the ONS Postcode Directory (May 2014) where possible. Figures for some constituencies may be subject to revision later in the year.

. For sales before 31 March 2014, properties are included under the local authority district to which they were initially allocated. In some cases, this differs from latest information, which forms the basis of the first column of local authority district figures. Figures for some local authorities may be subject to revisions later in the year. Although local authority information is validated against other geographic data at the time of data entry, detailed reconciliation of the data, conducted twice a year, may result in a small number of changes to these monthly releases, for example where a new development crosses a local authority boundary.

An equity loan is Government financial assistance given to eligible applicants to purchase an eligible home through a Government equity mortgage secured on the home. The Government equity mortgage is ranked second in priority behind an owner’s main mortgage lender.

This scheme offers up to 20 per cent of the value as Government assistance to purchasers buying a new build home. The buyer must provide a cash deposit of at least 5 per cent and a main mortgage lender must provide a loan of at least 75 per cent.

The Government assistance to buy is made through an equity loan made by the Homes and Communities Agency (HCA) to the purchaser.

Help to Buy equity loans are only available on new build homes and the maximum purchase price is £600,000. Equity loan assistance for purchasers is paid via house builders registered with the HCA to participate in the Help to Buy equity loan initiative. The payment is made to builders (via solicitors) at purchaser legal completion.

The equity loan is provided without fees for the first five years of ownership.

The property title is held by the home owner who can therefore sell their home at any time and upon sale should provide the government the value of the same equity share of the property when it is sold.

For further information see
Help to Buy (equity loan) scheme monthly statistics.

This data set contains Help to Buy: Equity Loan statistics at local authority level and includes total equity loans and equity loans to first time buyers . For data released from 5 March 2015 onwards, the Homes and Community Agency (HCA) have revised the completion date for the entire Help to Buy Equity Loan time series. The HCA have stopped counting payment date (when the money out is paid out by the HCA) and now report on the expected actual completion date. It is more accurate and is closer to the live situation, especially when HCA now recognise an asset based on a completion, rather than exchange and approved claim. As a result (and due to reinstating accounts) HCA have seen movement of actual completions dates. There should not be this level of difference moving forward, it was a one off activity.

Information on the allocation of completed sales to postcode sectors is derived using the latest available information on the full postcode for each scheme, which may be subject to revision.

For sales before 31 March 2014, properties are included under the local authority district to which they were initially allocated. In some cases, this differs from latest information, which forms the basis of the first column of local authority district figures. Figures for some local authorities may be subject to revisions later in the year.

Although local authority information is validated against other geographic data at the time of data entry, detailed reconciliation of the data, conducted twice a year, may result in a small number of changes to these monthly releases, for example where a new development crosses a local authority boundary.

An equity loan is Government financial assistance given to eligible applicants to purchase an eligible home through a Government equity mortgage secured on the home. The Government equity mortgage is ranked second in priority behind an owner’s main mortgage lender.

This scheme offers up to 20 per cent of the value as Government assistance to purchasers buying a new build home. The buyer must provide a cash deposit of at least 5 per cent and a main mortgage lender must provide a loan of at least 75 per cent.

The Government assistance to buy is made through an equity loan made by the Homes and Communities Agency (HCA) to the purchaser.

Help to Buy equity loans are only available on new build homes and the maximum purchase price is £600,000. Equity loan assistance for purchasers is paid via house builders registered with the HCA to participate in the Help to Buy equity loan initiative. The payment is made to builders (via solicitors) at purchaser legal completion.

The equity loan is provided without fees for the first five years of ownership.

The property title is held by the home owner who can therefore sell their home at any time and upon sale should provide the government the value of the same equity share of the property when it is sold.

For further information see
Help to Buy (equity loan) scheme monthly statistics.

Dividend-Per-Share Time Series for Paragon Banking Group PLC. Paragon Banking Group PLC provides financial products and services in the United Kingdom. It operates in two segments, Mortgage Lending and Commercial Lending. The Mortgage Lending segment offers buy-to-let mortgages, as well as includes owner-occupied first and second charge mortgages. The Commercial Lending segment comprises SME lending, such as hire purchase, and finance and operating leases; and provides development finance, motor finance, structured lending, and other products. It offers a range of savings products; and deposits taking, residential mortgages, loan and vehicle finance, contract hire, surveyors and property consulting, asset and portfolio administration, asset and development finance, consumer loan finance, and asset investment services, as well as acts as an asset finance broker. The company was formerly known as The Paragon Group of Companies PLC and changed its name to Paragon Banking Group PLC in September 2017. Paragon Banking Group PLC was founded in 1985 and is headquartered in Solihull, the United Kingdom.

Abstract copyright UK Data Service and data collection copyright owner.The Survey of Mortgage Lenders (SML) was launched on 1st April 1992 to succeed the 5% Sample Survey of Building Society Mortgage Completions (BSM) (See GN:33191). The aims were to improve the survey in three principal ways: a) to broaden the range of institutions surveyed to incorporate other mortgage lenders in addition to building societies and Abbey National. With the entry of the high street banks and then the centralised lenders into the mortgage market, information provided by the building societies no longer represented the whole market in the way it did when the BSM was set up in the 1960s. b) to extend its coverage to include further advances, remortgages and top-up loans in addition to first mortgages. c) to increase the level of detail on the questionnaire especially with respect to the characteristics of the mortgage loan. An important consideration for users of the data is that the SML figures allow continuity with the BSM survey results to be maintained for a reasonable period. Main Topics: Financial institution code, date mortgage completed, whether dwelling is wholly or partly occupied by borrower. Mortgage amount, type of advance, whether solely for purchase of property, period of mortgage, gross rate of interest, whether the interest charged is fixed or variable rate, whether interest payments are discounted or deferred, repayment method, source of mortgage business, purchase price and whether discounted in any way, location of dwelling, whether new, age of dwelling, type of dwelling, number of habitable rooms, number, sex and age of borrowers, basic income of main borrower, other income and total income on which mortgage is based, whether applicant previously owner occupier, previous tenure. The institutions are divided into four strata according to the size of their assets. All the largest were asked to complete questionnaires on a sample of 5 per cent of their new mortgage advances. Mortgages are included if their reference numbers end in specified digits chosen so that every twentieth mortgage is selected. Institutions in the next stratum are arranged in order of size of assets and alternate institutions chosen each of which are asked to complete questionnaires on 10 per cent of their mortgages. In the next stratum 20 per cent of the mortgages of every fourth institution are obtained. The smallest institutions are completely excluded.