Best Building Society 90% LTV Mortgages UK 2026

by
UK 10% Deposit Mortgage Guide · September 2026

Best Building Society 90% LTV Mortgages UK 2026

A 90% loan-to-value mortgage normally means you provide a 10% deposit and borrow the remaining 90% of the property’s accepted value. For a £300,000 home, that usually means a £30,000 deposit and a £270,000 mortgage before allowing for buying costs.

The best building society 90% LTV mortgage is not automatically the one with the lowest advertised rate. In September 2026, building societies are offering very different combinations of fixed rates, trackers, £0 or £999-style product fees, cashback, higher-income-multiple options and first-time-buyer criteria.

See 90% LTV Comparison Calculate Your 90% LTV Application Checklist
Mortgage warning: your home may be repossessed if you do not keep up repayments on your mortgage. Rates and mortgage products can be changed or withdrawn quickly. Always confirm the live mortgage illustration, fees, Early Repayment Charges and eligibility before applying.

Independent editorial review: 27 September 2026. Current product examples below are dated snapshots from official lender information and are not personalised mortgage recommendations.

90% LTV Mortgage: Quick Answer

Deposit normally required 10% of the accepted property value or purchase price, subject to lender valuation and criteria.
Mortgage amount Up to 90% of the property value for a mortgage specifically capped at 90% LTV.
Typical users First-time buyers, home movers and some remortgagers with around 10% equity.
Main comparison point Compare rate + fee + cashback + ERCs + criteria, not the initial percentage alone.
Current lender examples Nationwide, Coventry, Leeds, Skipton, Newcastle and other UK mutual lenders have 90% LTV routes.
Approval A 10% deposit does not guarantee approval. Affordability, credit history, income, property and underwriting still matter.
Fast answer: for a mainstream 90% LTV purchase in September 2026, Nationwide and Coventry deserve checking for competitive first-time-buyer pricing, Leeds has clear fee and fee-free 90% first-time-buyer options, Newcastle has both 90% fixed and tracker choices, while Skipton is worth checking where its lending criteria or product structure fits better. There is no single building society that is best for every borrower.

Best Building Society 90% LTV Mortgages: September 2026 Snapshot

The table is a practical shortlist, not a league table. Rates can change between reading this page and submitting an application, and different products apply to first-time buyers, home movers and remortgagers.

Building society
90% example
Fee
Borrower
Why check it
Building society Nationwide
90% example 4.82% five-year fixed
Fee £999
Borrower First-time buyer
Why check it Nationwide’s 17 August repricing included this 90% LTV first-time-buyer example, effective 18 August. Check its live rate finder because pricing can move.
Building society Coventry
90% example 4.92% fixed to 31 Dec 2031
Fee £499
Borrower First-time buyer
Why check it Current product page also shows £500 cashback, one valuation included and up to 10% annual capital repayment without an ERC.
Building society Leeds
90% example 5.00% two-year fixed
Fee £999
Borrower First-time buyer
Why check it Leeds also showed a 5.07% fee-free 90% first-time-buyer option in its September range, useful when comparing fee versus rate.
Building society Newcastle
90% example 4.75% two-year tracker
Fee £999
Borrower New customer
Why check it Its current range also includes fee-free 90% fixed options, giving borrowers a fixed-versus-tracker choice.
Building society Skipton
90% example Check live finder
Fee Product-dependent
Borrower Purchase / remortgage
Why check it Skipton’s finder calculates products from your purpose, property value, loan, term and LTV instead of relying on one static rate table.
Rate-date warning: Nationwide’s 4.82% example comes from its latest 90% first-time-buyer rate highlighted in the 17 August 2026 repricing announcement found during this review. Coventry, Leeds and Newcastle information was checked against current product pages/ranges in September. Always open the live lender page before applying.

Which Building Society 90% Mortgage Should You Check First?

Instead of calling one lender universally “best”, start with the lender whose current proposition matches the part of your case most likely to matter.

Competitive first-time-buyer fixed rate Nationwide / Coventry. Both currently publish 90% first-time-buyer routes worth comparing alongside the product fee, cashback and fixed period.
Lower product fee + cashback Coventry. Its current 4.92% first-time-buyer example carries a £499 product fee and £500 cashback, subject to the product terms.
Fee vs no-fee comparison Leeds. Its September first-time-buyer range included both £999-fee and £0-fee 90% alternatives at different rates.
Tracker option Newcastle. Its live range includes a 90% LTV two-year Base Rate tracker alongside fixed-rate alternatives.
Borrowing-power discussion Nationwide, Newcastle and intermediary routes. Specialist higher-income-multiple criteria may help some eligible applicants, but affordability still controls the final loan.
Need a different property or borrower fit Skipton or a broker search. Criteria can matter more than a 0.1% rate difference when your property, employment or income is less straightforward.
Practical rule: shortlist two or three mortgages that you actually qualify for, then compare the cost over the initial deal period. Do not compare a first-time-buyer product with a home-mover or remortgage product as though the incentives and eligibility are identical.

What Does 90% LTV Mean?

Loan-to-value is the mortgage as a percentage of the property’s value. At exactly 90% LTV, your mortgage is 90% and your equity or deposit is normally 10%.

Formula: Mortgage amount ÷ accepted property value × 100 = LTV.
£200,000 home £20,000 deposit + £180,000 mortgage = 90% LTV.
£250,000 home £25,000 deposit + £225,000 mortgage = 90% LTV.
£300,000 home £30,000 deposit + £270,000 mortgage = 90% LTV.
£400,000 home £40,000 deposit + £360,000 mortgage = 90% LTV.
A 10% cash deposit does not always guarantee 90% LTV. The lender normally works from the lower relevant value under its rules. If you agree to pay £300,000 but the mortgage valuation comes back at £290,000, a £270,000 loan would be about 93.1% of the lender’s valuation rather than 90%. You may need a larger deposit, lower purchase price or different mortgage.

90% LTV Monthly Payment Example on a £300,000 Home

Suppose the home costs £300,000, you put down £30,000 and borrow £270,000 over 25 years on a repayment mortgage. These figures illustrate how the initial rate changes the payment before fees and later rate changes.

Illustrative rate
Loan
Term
Approx. payment
Important note
Rate4.82%
Loan£270,000
Term25 years
Approx. payment£1,550/month
NoteIllustrative repayment at that rate only; excludes fees and later reversion rate.
Rate4.92%
Loan£270,000
Term25 years
Approx. payment£1,566/month
NoteA product fee or cashback can materially change the deal comparison.
Rate5.00%
Loan£270,000
Term25 years
Approx. payment£1,578/month
NoteShorter fixed periods can require another product decision sooner.
Rate5.85%
Loan£270,000
Term25 years
Approx. payment£1,715/month
NoteA fee-free mortgage can still cost more if the rate difference is large enough.

These calculations are simple illustrations on a capital-and-interest repayment basis. They are not lender quotations, APRC calculations or personalised affordability assessments.

Nationwide 90% LTV Mortgages

Nationwide is one of the first places many UK first-time buyers check because its mainstream mortgage range reaches high LTV bands and it operates a separate Helping Hand proposition for qualifying first-time buyers who need more borrowing capacity.

Nationwide’s mortgage repricing announced on 17 August 2026 included a five-year fixed first-time-buyer mortgage at 90% LTV priced at 4.82% with a £999 product fee. Mortgage pricing can change after an announcement, so the current rate finder remains the final source before applying.

90% example checked 4.82% five-year fixed for first-time buyers with a £999 fee in the August repricing.
Higher LTV available Nationwide also lends up to 95% LTV on qualifying first-time-buyer mortgages, subject to criteria.
Helping Hand Eligible first-time buyers may be able to borrow more; Nationwide says the scheme can provide up to 33% more than its standard lending amount in qualifying cases.
DIP Nationwide requires a Decision in Principle before the full first-time-buyer mortgage application.

Official NationwideNationwide Mortgage Rate Finder

After opening this link:

  1. Select that you do not already have a Nationwide mortgage if you are a new borrower.
  2. Choose first-time buyer, moving home or remortgage as appropriate.
  3. Enter the property value and mortgage amount so the tool can identify your LTV.
  4. Compare the 90% products by rate, fee and fixed period.
  5. Open the product details and check Early Repayment Charges and follow-on rate.
  6. Re-check immediately before applying because Nationwide states that mortgage rates can change or be withdrawn.

Higher borrowing routeNationwide Helping Hand Mortgage

After opening this link:

  1. Confirm that you meet Nationwide’s first-time-buyer definition.
  2. Check the available LTV and fixed-rate term for Helping Hand.
  3. Use the affordability information to see whether the proposition could increase borrowing.
  4. Do not treat the headline borrowing multiple as a guaranteed loan; full affordability and underwriting still apply.

Coventry Building Society 90% LTV Mortgages

Coventry currently has a particularly clear 90% first-time-buyer example: 4.92% fixed to 31 December 2031 with a £499 product fee and £500 cashback. The current product page also states that one valuation is included.

4.92% Current first-time-buyer example checked at 90% LTV.
£499 Product fee on this specific current example.
£500 Cashback listed for the current first-time-buyer product.
10% Current annual capital repayment allowance stated before ERC above that allowance.
Why Coventry deserves a close comparison: a £499 fee combined with £500 cashback creates a different cost profile from a mortgage charging £999 with no cashback. The mortgage rate still matters, but compare net costs over the fixed period rather than looking at the rate in isolation.

Official Coventry productCoventry 90% LTV First-Time-Buyer Mortgage Example

After opening this link:

  1. Confirm the rate has not changed since this guide was reviewed.
  2. Check the fixed end date rather than assuming it is exactly five years from completion.
  3. Review the £499 product fee and £500 cashback terms.
  4. Read the Early Repayment Charge schedule.
  5. Check the 10% annual overpayment allowance.
  6. Confirm that you meet Coventry’s first-time-buyer definition and wider lending criteria.

Leeds Building Society 90% LTV Mortgages

Leeds is useful for comparing the cost of paying a product fee against choosing a fee-free mortgage. Its first-time-buyer range checked in September showed a 5.00% two-year fixed mortgage at 90% LTV with a £999 product fee and a 5.07% alternative with no product fee.

Lower rate + fee

5.00% initial rate

90% maximum LTV.

£999 product fee.

Maximum loan shown: £700,000.

Higher rate + no product fee

5.07% initial rate

90% maximum LTV.

£0 product fee.

Maximum loan shown: £700,000.

Which is cheaper? It depends mainly on the mortgage balance and how long you keep the deal. On a smaller loan, saving £999 upfront can outweigh a modest rate reduction. On a larger balance, the lower rate may save enough interest to justify the fee.

Official Leeds rangeLeeds Building Society First-Time-Buyer Mortgage Range

After opening this link:

  1. Find the current 90% LTV first-time-buyer products.
  2. Compare the fee-paying and fee-free options side by side.
  3. Check the fixed end date, not just the wording “two year” or “five year”.
  4. Check maximum loan size and property criteria.
  5. Review the APRC and follow-on Standard Variable Rate.
  6. Confirm whether the displayed product is intermediary-only or available through the application route you intend to use.

Newcastle Building Society 90% LTV Mortgages

Newcastle stands out in this comparison because its live range includes both fixed and Base Rate tracker mortgages at 90% LTV. That makes it relevant for borrowers comparing payment certainty with the possibility that a tracker could move when Bank Rate changes.

90% tracker example 4.75% two-year Base Rate tracker, £999 fee in the range checked on 27 September 2026.
90% fixed example 5.85% two-year fixed with no product fee in the current new-customer range.
Five-year fixed example 5.85% five-year fixed with no product fee was also displayed at 90% LTV.
Loan-size criteria Newcastle’s lending policy changes maximum LTV at higher loan amounts, so check loan size as well as the percentage deposit.
Tracker warning: a tracker rate can rise as well as fall. Do not choose a 90% tracker simply because its initial rate is below a fixed-rate option. Consider whether your household budget can cope with higher monthly payments.

Official Newcastle ratesNewcastle Building Society Mortgage Products

After opening this link:

  1. Filter or scan for products showing a maximum 90% LTV.
  2. Separate fixed-rate products from Base Rate trackers.
  3. Compare £0-fee and fee-paying products.
  4. Check the follow-on Standard Variable Rate.
  5. Open the full product details to review ERCs and eligibility.
  6. Check Newcastle’s lending policy if the mortgage is above £500,000 or the property is a new-build flat.

Skipton Building Society 90% LTV Mortgage Route

Skipton’s mortgage finder is more useful than relying on one isolated headline rate because it asks what you are doing, the property value, the mortgage amount, repayment method and term before showing the relevant products.

Skipton explains 90% LTV using the same practical example many buyers need: a £200,000 property with a £20,000 deposit and £180,000 mortgage equals 90% LTV.

Purchase Use the finder with the purchase price and required mortgage to identify the exact LTV products currently available.
Remortgage Use the current property value and balance required rather than your original purchase price.
Product fee Skipton warns that adding a mortgage product fee to the loan means paying interest on that fee over the mortgage term.
Valuation risk A lower-than-expected valuation can move your application into a higher LTV band and make the selected product unavailable.

Official Skipton finderSkipton Mortgage Finder

After opening this link:

  1. Select whether you already have a Skipton mortgage.
  2. Choose purchase, remortgage or the relevant mortgage purpose.
  3. Enter the estimated property value.
  4. Enter the amount you need to borrow and check that the calculated LTV is 90% or less.
  5. Set repayment type and mortgage term.
  6. Compare the resulting rate, product fee, APRC and ERC information.

90% LTV Mortgage Rate vs Product Fee: Which Is More Important?

At 90% LTV, two mortgages with nearly identical headline rates can have very different real costs. This matters particularly when one deal charges £999 and another charges nothing.

Lower rate with a fee

  • Can produce a lower monthly payment.
  • Can be better value on a larger mortgage.
  • The fee must be recovered through interest savings.
  • Adding the fee to the mortgage means paying interest on it.
  • You may still face valuation, legal or transfer costs.

Higher rate with no product fee

  • Keeps the upfront mortgage cost lower.
  • Can suit a smaller mortgage balance.
  • Can make sense if the rate difference is small.
  • May be easier when your cash is needed for solicitor, survey and moving costs.
  • The higher interest rate still needs to be costed over the deal period.
Do the comparison over the initial deal period. For a two-year fix, compare two years of interest/payment differences plus product fees and incentives. For a five-year fix, compare the longer five-year cost and remember that a longer ERC period can reduce flexibility.

Can I Get a 90% LTV Mortgage on My Income?

LTV answers how much of the property price you are borrowing. It does not answer how much the lender thinks your household can afford.

A borrower can have a full 10% deposit and still fail affordability if the requested mortgage is too large relative to income, committed spending, debts, childcare costs or the lender’s stress testing.

Basic salary Usually easier to evidence with payslips and bank statements, but each lender has its own treatment.
Bonus / overtime A lender may use all, part or none depending on history, regularity and its current criteria.
Self-employed income Accounts, tax calculations, tax-year overviews or accountant information may be needed depending on the lender.
Loans and cards Outstanding commitments can reduce the amount available even when monthly repayments appear manageable.
Childcare / maintenance Regular household commitments are normally part of affordability rather than ignored because they are not debts.
Mortgage term A longer term can reduce the monthly payment but usually increases the total interest paid.
Do not build your home-search budget around a maximum income multiple. A lender saying it can consider 5x, 5.5x or more income for qualifying cases does not mean every applicant can borrow that amount.

Property Rules Can Change Your 90% LTV Options

A lender can be comfortable with you as a borrower but still restrict the mortgage because of the property. Check this before paying for searches, surveys or non-refundable costs.

New-build flats Some lenders use a lower maximum LTV for flats or particular new-build properties.
High-rise blocks Construction, cladding, EWS1 requirements, lease terms and marketability can affect acceptance.
Short lease Lease length at application and at the end of the mortgage term can matter.
Non-standard construction Concrete, timber-framed or unusual construction can require lender-specific acceptance.
Above commercial premises Restaurants, pubs, takeaways or other neighbouring commercial use can affect marketability criteria.
Builder incentives Cashback, deposit contributions or upgrades can affect the value used for LTV calculations.
Newcastle example: its current lending policy allows up to 95% on qualifying new-build houses but caps new-build flats at 90% generally, with one-bedroom flats subject to a lower stated maximum. This illustrates why “90% mortgage available” does not mean every property qualifies.

What You Need Before Applying for a 90% LTV Mortgage

Proof of identity and current address.
Recent payslips or self-employed income evidence.
Recent personal bank statements.
Evidence of the 10% deposit and its source.
Details of loans, credit cards and other commitments.
Property price and estate-agent particulars.
Estimated mortgage term and repayment basis.
Details of any gifted deposit.
Current mortgage statement if remortgaging.
Expected completion timing, especially for new builds.
Keep buying costs separate from the deposit. Your 10% deposit is not the whole cash requirement. Depending on your transaction you may also need money for conveyancing, searches, survey, moving costs, mortgage fees and applicable property tax such as SDLT, LBTT or LTT.

Should You Put Down More Than 10%?

If you can increase the deposit without wiping out your emergency savings, check the next lower LTV band before committing. Moving from 90% to 85% LTV can sometimes open different rates or lending criteria.

Possible advantages of 15% deposit

  • Access to an 85% LTV product range.
  • Potentially lower mortgage rate.
  • Lower monthly payment.
  • More equity if property values fall.
  • Smaller mortgage balance from day one.

Why keeping some cash can matter

  • Emergency fund after completion.
  • Repairs and furnishings.
  • Legal and moving costs.
  • Unexpected survey issues.
  • Reduced need to use expensive unsecured credit after buying.
Do not put every available pound into the deposit just to reach another LTV band without checking how much the new rate actually saves and whether you will still have a sensible cash buffer after completion.

Common 90% LTV Mortgage Mistakes

Choosing the lowest rate automatically A £999 or £1,499 fee can make a lower-rate product more expensive than a fee-free alternative.
Ignoring the lender valuation A down valuation can push your effective LTV above 90% and remove the product you expected to use.
Spending the whole cash pot on deposit You still need to budget for legal fees, survey, moving expenses and other buying costs.
Applying before checking credit files Address errors, old credit links or unexpected missed-payment markers can create avoidable problems.
Comparing the wrong borrower category First-time-buyer, home-mover and remortgage products can have different rates, fees and incentives.
Ignoring ERCs A five-year fix gives payment certainty but can be expensive to leave early if your plans change.
Assuming DIP means approval A Decision in Principle is not the final mortgage offer and does not guarantee the property will be acceptable.
Using an old rate screenshot Mortgage products can be repriced quickly. Open the official live rate finder immediately before applying.

Related Building-Society.org Mortgage Guides

These published guides are useful when one of the lenders in the 90% LTV comparison is on your shortlist.

Nationwide Building Society: Mortgages, Savings & Help Nationwide Building Society Mortgage Rates 2026 Coventry Building Society Mortgage Rates 2026 Leeds Building Society: Savings, Mortgages & Account Help Teachers Building Society: Teacher & First-Time-Buyer Mortgages Scottish Building Society: Savings & Mortgage Guide

Official 90% LTV Mortgage Resources

Use the live lender pages below as the final authority for today’s mortgage rate, fee, LTV limit, loan size, ERC schedule and application criteria.

Nationwide Mortgage Rates Nationwide First-Time-Buyer Mortgages Coventry Mortgages Coventry 90% FTB Example Leeds First-Time-Buyer Range Leeds Lending Criteria Newcastle Mortgage Products Newcastle Lending Policy Skipton Mortgage Finder

How This 90% LTV Mortgage Guide Was Checked

Nationwide live mortgage-rate route checked.
Latest Nationwide 90% first-time-buyer repricing checked.
Nationwide Helping Hand criteria reviewed.
Coventry live 90% first-time-buyer product reviewed.
Coventry product fee, cashback and ERC details checked.
Leeds September 90% first-time-buyer range checked.
Leeds maximum 90% residential loan-size criteria checked.
Newcastle current 90% fixed and tracker products checked.
Newcastle loan-size and new-build LTV criteria checked.
Skipton live mortgage finder and LTV explanation reviewed.
Published related Building-Society.org pages checked.
Rates treated as dated examples, not permanent facts.

Review date: 27 September 2026. Mortgage rates can change much faster than editorial pages. Re-check every product on the lender’s official website immediately before submitting an application.

Independent Mortgage Information Notice

Building-society.org is an independent informational website. It is not Nationwide Building Society, Coventry Building Society, Leeds Building Society, Newcastle Building Society, Skipton Building Society, the Financial Conduct Authority or a mortgage broker.

This guide provides general information rather than personalised mortgage advice. A mortgage that suits one household may be unsuitable for another because borrowing needs, income, deposit source, credit history, term, property type and future plans differ.

Your home may be repossessed if you do not keep up repayments on your mortgage. Before committing, check the lender’s formal mortgage illustration and consider regulated mortgage advice if you are unsure which product or mortgage structure is appropriate.

Building Society 90% LTV Mortgage FAQs

1. What is a 90% LTV mortgage?

A 90% LTV mortgage means the mortgage is equal to 90% of the property value used by the lender. You normally provide the other 10% as your deposit or existing equity. For a £300,000 property, 90% is £270,000 and 10% is £30,000.

2. Which building society has the best 90% LTV mortgage in 2026?

There is no single best lender for every borrower. Current September 2026 options worth comparing include Nationwide, Coventry, Leeds, Newcastle and Skipton. The best fit depends on rate, product fee, cashback, fixed period, affordability, property criteria and Early Repayment Charges.

3. Can a first-time buyer get a 90% mortgage with a building society?

Yes. A number of UK building societies currently offer first-time-buyer mortgages at 90% LTV, and some also lend to qualifying first-time buyers at 95% LTV. Approval still depends on affordability, credit checks, property valuation and the lender’s criteria.

4. How much deposit do I need for a 90% LTV mortgage?

You normally need a deposit equal to at least 10% of the accepted property value. A £250,000 property therefore normally requires £25,000 for a 90% mortgage, while a £400,000 property normally requires £40,000.

5. Is a 90% mortgage cheaper than a 95% mortgage?

A 90% mortgage often gives access to different pricing from a 95% mortgage because you are providing more equity, but this is not guaranteed for every product. Check the actual 90% and 95% rates, fees and criteria available when you apply.

6. Is it worth increasing my deposit from 10% to 15%?

It can be worth checking because a 15% deposit moves you to about 85% LTV and may unlock different mortgage products or lower rates. Compare the actual saving before using money that you may need for emergencies, legal costs, surveys or repairs.

7. Should I choose a £0-fee or £999-fee 90% mortgage?

Compare the total cost over the initial deal period. A £999-fee mortgage may have a lower interest rate and can work better on a large mortgage, while a fee-free mortgage can be better value on a smaller balance. If a fee is added to the mortgage, you will usually pay interest on it.

8. Can a property down valuation stop a 90% mortgage?

Yes. If the lender values the property below the agreed purchase price, the same mortgage amount can become more than 90% of the lender’s valuation. You may need to increase your deposit, renegotiate the purchase price or choose another suitable mortgage if available.

9. Does a Decision in Principle guarantee my 90% mortgage?

No. A Decision in Principle is an initial indication based on the information and checks completed at that stage. The final mortgage still depends on the full application, affordability, underwriting, credit checks, evidence and an acceptable property valuation.

10. Are building societies better than banks for 90% LTV mortgages?

Not automatically. Building societies can offer competitive rates or useful underwriting criteria, but banks can also have strong 90% mortgage deals. Compare all suitable lenders by total cost, criteria, service, flexibility and product features rather than choosing only by lender type.

Leave a Comment