Newcastle Building Society Mortgage Rates 2026: Deals & Remortgage

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UK Newcastle Mortgage Rate Guide · September 2026

Newcastle Building Society Mortgage Rates 2026: Deals & Remortgage

Newcastle Building Society mortgage rates in 2026 are not one single percentage. The deal available to you depends on your loan-to-value (LTV), whether you are buying or remortgaging, the length of the deal, whether you choose a product fee and whether you are an existing Newcastle mortgage customer.

This page gives you a dated September 2026 rate snapshot, then explains the part that matters more than a headline rate: how to compare the fee, monthly payment, Early Repayment Charge, overpayment rules and remortgage costs before choosing a deal.

Check Live Newcastle Mortgage Rates Official Remortgage Guide See September 2026 Rate Snapshot
Mortgage risk warning: your mortgage will be secured on your home. Your home may be repossessed if you do not keep up repayments on your mortgage.
Rates can change quickly. Newcastle Building Society currently warns that market conditions can cause products and interest rates to change at very short notice and that products may be offered on a limited basis. The rates below are a dated snapshot reviewed on 21 September 2026, not a promise that the same deal will still be available when you apply.

Independent guide. Building-society.org is not Newcastle Building Society and cannot approve a mortgage, reserve a rate, calculate your personal affordability or change an existing Newcastle mortgage.

Newcastle Building Society Mortgage Rates: Quick Answers

Lowest standard 2-year fixed example checked 4.90% at up to 80% LTV with a £999 product fee.
Lowest standard 5-year fixed example checked 5.05% at up to 80% LTV with a £999 product fee.
2-year tracker example 4.45% at up to 80% LTV with a £999 product fee.
Current standard variable rate 6.31% for residential and Buy to Let mortgages where Newcastle’s published UK SVR applies.
Standard high-LTV lending Newcastle’s displayed standard range currently includes mortgages up to 95% LTV.
First Step Eligible first-time buyers can currently access a specialist route up to 98% LTV, subject to criteria.
Remortgage telephone 0345 601 0014.
Existing customer switching Newcastle says eligible customers can switch up to 3 months before their current product ends without an ERC.
Do not compare on rate alone. A 4.90% mortgage with a £999 fee can cost more for a small mortgage than a slightly higher fee-free deal. For a larger balance, the lower interest rate may outweigh the fee. Mortgage size and how long you keep the deal matter.

Newcastle Building Society Mortgage Rates 2026: Current Snapshot

The examples below come from Newcastle Building Society’s public new-customer mortgage range reviewed on 21 September 2026. They are useful for understanding how the rate changes with LTV and product fee.

These are not personalised quotations. Newcastle still needs to assess the application against affordability and lending criteria, and a displayed product can be withdrawn before an application reaches the required stage.

2-Year Fixed Rate Examples

Up to 80% LTV

4.90% £999 fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.3% ERC: Yes

Up to 80% LTV

5.25% £0 product fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.3% ERC: Yes

Up to 90% LTV

5.10% £999 fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.3% ERC: Yes

Up to 90% LTV

5.35% £0 product fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.3% ERC: Yes

Up to 95% LTV

5.50% £999 fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.4% ERC: Yes

Up to 95% LTV

5.60% £0 product fee Fixed to 31 Dec 2028
Then: 6.31% SVR APRC: 6.4% ERC: Yes

5-Year Fixed Rate Examples

Maximum LTV
£999 fee rate
Fee-free rate
Fixed until
80%
5.05%
5.35%
31 Dec 2031
90%
5.20%
5.40%
31 Dec 2031
95%
5.65%
5.70%
31 Dec 2031
Each of these displayed fixed-rate products currently shows an Early Repayment Charge. The product detail page should be checked before applying because the ERC percentage and charging period matter if you expect to move, repay a lump sum or refinance early.

Official live rates Newcastle Building Society Mortgage Products

After opening this link:

  1. Use the mortgage-type filter to choose Standard, First Step, Shared Ownership, New Build, Buy to Let, Enhanced+ or another relevant route.
  2. Select the maximum LTV that matches your deposit or current equity.
  3. Choose a deal term such as two years, five years or longer than five years.
  4. Compare both the initial rate and the product fee.
  5. Open the full product details and check the APRC, Early Repayment Charge and eligibility conditions.
  6. Confirm the product is still available immediately before starting an application.

Should You Choose the Lower Newcastle Rate or the Fee-Free Deal?

The cheapest percentage is not automatically the cheapest mortgage. Newcastle’s standard range often pairs a lower rate with a £999 product fee and a slightly higher rate with no product fee.

Worked example: £200,000 repayment mortgage over 25 years

These illustrations use the September 2026 rate snapshot and are rounded estimates. They do not include every mortgage cost and are not a personalised mortgage illustration.

Example
Rate
Product fee
Approx. payment
2-year fixed, 80% LTV
4.90%
£999
About £1,158/month
2-year fixed, 80% LTV
5.25%
£0
About £1,199/month
5-year fixed, 80% LTV
5.05%
£999
About £1,175/month
5-year fixed, 80% LTV
5.35%
£0
About £1,210/month
Do not use the monthly payment alone. Compare the product fee, valuation or legal benefits, total interest during the deal, remaining mortgage balance, ERCs and what happens after the initial deal ends. If a fee is added to the mortgage rather than paid separately, interest may also be charged on that amount.

Official calculator Newcastle Mortgage Repayment Calculator

After opening this link:

  1. Enter a realistic mortgage balance rather than the maximum amount you hope to borrow.
  2. Use the deal and LTV filters to narrow the product list.
  3. Compare the estimated repayment across more than one suitable product.
  4. Remember that Newcastle states its repayment indications do not include all fees.
  5. Open the specific product details before making a decision.

Newcastle Building Society Remortgage Rates and Deals

A remortgage means moving the mortgage on your current home to a different lender. Newcastle’s current remortgage range is aimed at borrowers leaving another lender, including people approaching the end of a fixed deal or already paying their lender’s standard variable rate.

Up to 95% LTV Newcastle states that eligible remortgage borrowing can go up to 95% of the home’s value, including qualifying additional borrowing.
Selected valuation benefit A free standard valuation on properties up to £500,000 is currently advertised on selected remortgage products.
Mortgage advice Newcastle offers access to qualified mortgage advisers and says there is no expectation to proceed after the advice discussion.
Manual underwriting approach Newcastle says applications are reviewed by underwriters working with its mortgage advisers rather than relying only on an automated computer decision.
Before remortgaging: ask your current lender for the outstanding balance, existing deal-end date and any Early Repayment Charge. A lower Newcastle rate can still be poor value if leaving your current mortgage triggers a large penalty.

Official remortgage route Newcastle Building Society Remortgaging

After opening this link:

  1. Check whether your current deal is ending or whether an ERC still applies.
  2. Review Newcastle’s current remortgage benefits and eligibility.
  3. Work out your approximate LTV using the mortgage balance and realistic property value.
  4. Compare the rate together with the product fee and any valuation or legal benefit.
  5. Use the affordability route or arrange an adviser appointment if the product appears suitable.
  6. Do not cancel your existing mortgage payment until the remortgage has formally completed.

Existing Newcastle Mortgage Customers: Switching Your Deal

If your mortgage is already with Newcastle Building Society, you do not necessarily need to remortgage to another lender when your current deal ends. Newcastle publishes a separate range of existing-customer products and an online switching process for eligible borrowers.

Up to 3 months early Newcastle says you can switch to a new product up to three months before your current product ends without paying an ERC for ending that deal early.
About 16 weeks The Society says it normally writes to customers around 16 weeks before a mortgage product ends.
2-week deadline Newcastle says it needs a product request at least two weeks before the end date for the new rate to start immediately after the existing deal.
No full reassessment in many switches Existing customers generally do not need new credit checks or underwriting when only switching product, unless borrowing more or changing the term.

Existing Customer Rate Examples

2-Year Fixed · 70% LTV

4.75% £999 fee
Fixed to 31 Dec 2028 Then 6.31% SVR

2-Year Fixed · 70% LTV

5.00% £0 fee
Fixed to 31 Dec 2028 Then 6.31% SVR

2-Year Fixed · 90% LTV

5.05% £999 fee
Fixed to 31 Dec 2028 Then 6.31% SVR

5-Year Fixed · 90% LTV

5.20% £999 fee
Fixed to 31 Dec 2031 Then 6.31% SVR
If you take no action when a qualifying fixed or other initial product ends, Newcastle says the mortgage normally moves onto its applicable Standard Variable Rate. That can materially change the monthly payment.

Existing customer rates Newcastle Existing Customer Mortgage Products

After opening this link:

  1. Check the LTV Newcastle is using for your property.
  2. Compare the exclusive existing-customer rates.
  3. Check the product fee and ERC before choosing a deal.
  4. If you received a switching code in Newcastle’s letter, follow the online switching route.
  5. If there is no code, you are on SVR, your circumstances changed or you need advice, contact the mortgage team instead.

Switching process Switch a Newcastle Mortgage Deal

After opening this link:

  1. Find your current mortgage product end date.
  2. Check the date from which Newcastle says you can switch without an ERC.
  3. Use your letter and switching code if Newcastle has confirmed online eligibility.
  4. Choose the replacement product only after comparing fee and rate.
  5. Submit the switch at least two weeks before the current product ends if you want the new rate to begin immediately afterwards.

Newcastle’s Specialist Mortgage Deals in 2026

Newcastle’s range is broader than ordinary 2- and 5-year residential fixes. The live product filters currently include lower-deposit, affordability, higher-income, Shared Ownership, New Build, Buy to Let and interest-only routes.

First-time buyer First Step up to 98% LTV

Designed for eligible first-time buyers with a deposit of at least 2% or £5,000, whichever is higher. The deposit must meet Newcastle’s source rules.

Longer fix Affordability Boost

Uses a different affordability assessment on eligible fixed rates longer than five years and may allow more borrowing, subject to affordability.

Higher income / larger loan Enhanced+

Newcastle currently describes Enhanced+ as allowing up to 6 times income for eligible employed applicants and up to 5.5 times income for eligible self-employed applicants.

Affordable ownership Shared Ownership

Separate products are displayed for eligible Shared Ownership purchases, including current examples at up to 95% LTV under the applicable calculation.

New property New Build

Specific New Build deals are included in the current mortgage range rather than relying only on the standard residential products.

Other routes JMSP, Buy to Let & Interest Only

Current filters also include Joint Mortgage Sole Proprietor, Buy to Let and interest-only options, all subject to their own lending rules.

Current Specialist Rate Examples

First Step · 5-Year Fixed

5.80% Up to 98% LTV £0 fee
Fixed to 31 Dec 2031 ERC: Yes

Affordability Boost · 6-Year

5.40% Up to 90% LTV £999 fee
Fixed to 31 Aug 2032 ERC: Yes

Affordability Boost · 6-Year

5.70% Up to 95% LTV £999 fee
Fixed to 31 Aug 2032 ERC: Yes

Enhanced+ · 2-Year

5.20% Up to 65% LTV £1,499 fee
Fixed to 31 Dec 2028 ERC: Yes

Official low-deposit route Newcastle First Step Mortgage

After opening this link:

  1. Check that at least one applicant meets Newcastle’s first-time buyer definition.
  2. Confirm the property price and mortgage amount fit the current First Step limits.
  3. Check the minimum deposit rule and permitted deposit source.
  4. Note that First Step is currently based on a five-year fixed mortgage.
  5. Check exclusions such as New Build or other ownership schemes before applying.

Official longer-fix route Newcastle Affordability Boost

After opening this link:

  1. Check whether you are comfortable fixing your mortgage for longer than five years.
  2. Review the maximum LTV for the product you are considering.
  3. Use Newcastle’s affordability process to see whether the different assessment actually changes your borrowing capacity.
  4. Compare the additional borrowing with the higher total interest that can result from borrowing more.
  5. Check ERCs before choosing a long fixed term.

Official higher-loan route Newcastle Enhanced+ Mortgages

After opening this link:

  1. Check Newcastle’s minimum income and loan-size criteria.
  2. Check the maximum income multiple applicable to your employment type.
  3. Review the LTV limit and deposit required.
  4. Include bonuses, commission or other income only where Newcastle’s criteria permit.
  5. Remember that the stated income multiple is not an automatic borrowing entitlement; affordability still applies.

Why Your LTV Changes the Newcastle Mortgage Rate

Loan-to-value is the mortgage balance as a percentage of the property’s value. A £180,000 mortgage on a £200,000 property is 90% LTV. A £160,000 mortgage on the same property is 80% LTV.

Property value
Mortgage
Deposit / equity
LTV
£200,000
£160,000
£40,000
80%
£200,000
£180,000
£20,000
90%
£200,000
£190,000
£10,000
95%

Newcastle’s September 2026 standard products illustrate the usual pattern: the 80% LTV rates are generally lower than equivalent 90% or 95% LTV products.

Remortgage tip: if your property value has increased or you have paid down a meaningful amount of capital, calculate your current LTV before comparing deals. Moving into a lower LTV band can sometimes open different rates.

Newcastle Standard Variable Rate and Tracker Mortgages

Newcastle reduced its residential and Buy to Let Standard Variable Rate from 6.50% to 6.31% from 1 February 2026 for properties in England, Scotland, Wales and Northern Ireland where that published SVR applies.

An SVR is set by the lender and can move up or down. It is different from a base-rate tracker, which follows a defined relationship with an external rate under the product terms.

September 2026 2-Year Base Rate Tracker Examples

80% LTV

4.45% £999 fee
Until 31 Dec 2028 Then 6.31% SVR

90% LTV

4.65% £999 fee
Until 31 Dec 2028 Then 6.31% SVR

95% LTV

4.99% £999 fee
Until 31 Dec 2028 Then 6.31% SVR
A tracker starting below a fixed rate is not automatically cheaper over the full period. If the tracked rate rises, your monthly payment can rise. Check the exact tracking formula and ERC before choosing it.

Official SVR information Newcastle Building Society Standard Variable Rate

After opening this link:

  1. Check the latest residential SVR displayed by Newcastle.
  2. Confirm that the rate applies to the location and mortgage type you hold.
  3. If your fixed deal is ending, compare an available replacement deal before automatically remaining on SVR.
  4. If you already have an older Newcastle mortgage, use your mortgage documents or contact Newcastle to confirm the rate linked to your specific loan.

Newcastle Mortgage Overpayments and Early Repayment Charges

Overpayment rules deserve attention before you choose a rate, particularly if you receive bonuses, expect an inheritance, plan to sell soon or regularly make lump-sum repayments.

Newcastle currently advertises qualifying remortgage products with an allowance of up to 10% overpayment a year plus an additional monthly overpayment allowance. Existing and older mortgages can have different terms, so your own mortgage offer remains the controlling document.

Check before overpaying

  • Whether your current product has an ERC.
  • The annual or monthly penalty-free allowance.
  • Whether the allowance is calculated by calendar year or another period.
  • Whether a lump sum would cross an ERC threshold.
  • How Newcastle applies the payment to your mortgage balance.

Check before leaving early

  • The exact ERC percentage.
  • When the ERC reduces or ends.
  • Whether porting may be possible if you are moving home.
  • Whether waiting a short period changes the cost materially.
  • Whether your new lender’s incentives genuinely offset the charge.
Newcastle’s existing-customer guidance says most of its mortgages can be ported to another property, subject to the new application and lending requirements. Porting is not the same as automatically transferring a loan without assessment.

How to Compare Newcastle Building Society Mortgage Deals

Use the same comparison process whether you are buying, remortgaging or switching an existing Newcastle mortgage. It prevents a low headline rate from hiding an expensive fee or unsuitable restriction.

  1. Identify your mortgage journey. Decide whether you are a first-time buyer, home mover, remortgager or existing Newcastle customer switching product.
  2. Calculate your LTV. Use the mortgage required divided by the property’s realistic value, then multiply by 100.
  3. Choose the type of rate. Compare suitable fixed and tracker options rather than assuming one is automatically safer or cheaper.
  4. Compare the product fee. Look at the £0, £999 or other fee together with the interest rate and mortgage balance.
  5. Check flexibility. Read the ERC, overpayment, porting and product-end rules.
  6. Open the official product details. Confirm the rate is still available and review the personalised mortgage illustration before committing.
Useful comparison order: monthly affordability first, total deal cost second, flexibility third. A mortgage that is theoretically cheapest but leaves no room in your monthly budget may not be the right fit for your circumstances.

How Much Could Newcastle Building Society Lend?

A maximum LTV is not the same as a promise to lend. Newcastle also assesses income, committed expenditure, credit commitments, mortgage term, property, household circumstances and its current lending policy.

Income Salary and other acceptable income are assessed under Newcastle’s current lending criteria.
Existing commitments Loans, credit cards and other regular financial commitments can reduce the amount that is affordable.
Mortgage term A longer term can reduce the monthly payment but normally increases the amount of interest paid over the life of the mortgage.
Deposit and LTV A larger deposit can lower the LTV and may make different rate bands available.
Self-employment Newcastle’s current mortgage navigation includes options for some applicants with one year’s accounts, subject to criteria.
Property type New Build, Shared Ownership and other property arrangements can have their own maximum LTV and policy rules.
Do not use a headline income multiple as your house-buying budget. Enhanced+ may allow qualifying borrowers a higher income multiple, but Newcastle still carries out affordability checks and the amount borrowed must remain repayable.

Newcastle Building Society Mortgage Contact Details

Mortgage enquiries 0345 601 0014
Mortgage payment difficulties 0345 702 3083
Solicitor questions 0345 600 4346
Postal address Newcastle Building Society, 1 Cobalt Park Way, Wallsend, NE28 9EJ.
Newcastle’s official contact page currently lists the general mortgage line as Monday to Friday, 9am–5pm. Some mortgage pages show wider adviser or appointment availability. Check the current page before planning a time-sensitive call.
If you may struggle with a payment: use the dedicated mortgage-payment-difficulties number early. Waiting until several payments have been missed can reduce the options available.

Official contact Contact Newcastle Building Society

After opening this link:

  1. Scroll to the Mortgages section rather than calling the savings number.
  2. Use the standard mortgage number for applications, switches and general mortgage queries.
  3. Use the mortgage-payment-difficulties line if affordability or missed payments are the issue.
  4. Check the current opening hours before calling.
  5. Have your mortgage account number available privately if you are an existing borrower.

Common Newcastle Mortgage Rate Mistakes

Choosing the lowest percentage A lower rate with a product fee is not automatically cheaper than a higher fee-free deal.
Using the wrong LTV Rates shown at 80% LTV cannot normally be assumed available to a borrower needing 90% or 95% LTV.
Ignoring the ERC A deal can become expensive if you expect to sell, refinance or make a large repayment during the fixed period.
Waiting for the SVR Existing borrowers should check switching dates before their current product expires rather than discovering the SVR after the payment changes.
Comparing only monthly payments A longer term lowers monthly repayments but can increase the total interest paid over the mortgage.
Assuming a displayed rate is reserved A website rate can change or disappear. Follow Newcastle’s application or rate-reservation process to understand when a product is actually secured.

Before Applying or Remortgaging: Practical Checklist

Know the property’s realistic value or purchase price.
Know the deposit or current mortgage balance.
Calculate the approximate LTV.
Check when the existing mortgage deal ends.
Find any current Early Repayment Charge.
Compare a fee-paying deal with a fee-free alternative.
Check the fixed or tracker end date.
Check the rate payable after the initial deal.
Review overpayment restrictions.
Budget for legal, valuation and moving costs where applicable.
Keep income and expenditure information ready.
Re-check the official product immediately before applying.

Related Building-Society.org Guides

Comparing another building society can be useful, especially when the difference between two mortgage rates is small and product fees or lending criteria become more important.

UK Building Society Directory & Mortgage Guides Manchester Building Society: Existing Accounts & Newcastle Guide
Manchester Building Society is relevant here because it merged with Newcastle Building Society in 2023. Existing legacy Manchester mortgage customers should still use the dedicated Manchester servicing route rather than assuming every Newcastle new-customer instruction applies to their old mortgage.

Official Newcastle Mortgage Resources Used for This Guide

Use the live official source when the exact rate, fee, LTV limit, product end date or mortgage criterion could affect your decision.

Newcastle Mortgages Current Mortgage Products & Rates Remortgaging Existing Mortgage Customers Existing Customer Rates Switching Your Mortgage Deal Standard Variable Rate Affordability Boost First Step Mortgage Enhanced+ Mortgages Repayment Calculator Mortgage Contact Details

How This Newcastle Mortgage Rate Guide Was Checked

Live new-customer mortgage product range reviewed.
80%, 90% and 95% LTV fixed-rate examples checked.
Current base-rate tracker examples checked.
Current 6.31% published SVR checked.
Existing-customer exclusive rates reviewed.
Existing-customer switch timing checked.
Remortgage benefits and LTV guidance reviewed.
First Step 98% LTV route checked.
Affordability Boost criteria reviewed.
Enhanced+ criteria reviewed.
Mortgage contact numbers checked.
Mortgage payment-difficulty route checked.

Rate review date: 21 September 2026. Newcastle specifically warns that mortgage products and rates can change at very short notice, so every rate on this page should be re-checked before an application or product switch.

Independent Mortgage Information Notice

Building-society.org is an independent information website. It is not Newcastle Building Society, a mortgage broker, the Financial Conduct Authority or a mortgage adviser.

The examples on this page do not assess your income, expenditure, credit history, property or personal circumstances and are not a personalised mortgage recommendation.

Verify before committing: mortgage rates, product fees, APRCs, LTV limits, ERCs, lending criteria and incentives can change. Use Newcastle Building Society’s current product page and the formal mortgage illustration issued for your application before making a financial commitment.
Your mortgage will be secured on your home. Your home may be repossessed if you do not keep up repayments on your mortgage.

Newcastle Building Society Mortgage Rates FAQs

1. What are Newcastle Building Society mortgage rates in 2026?

Rates vary by LTV, product type, fee and mortgage journey. In the range reviewed on 21 September 2026, standard new-customer 2-year fixed examples included 4.90% at up to 80% LTV with a £999 fee, while standard 5-year fixed examples included 5.05% at up to 80% LTV with a £999 fee. Rates can change at short notice.

2. What is Newcastle Building Society’s current standard variable mortgage rate?

Newcastle currently publishes a 6.31% Standard Variable Rate for residential and Buy to Let mortgages where its main UK SVR applies. It took effect from 1 February 2026. Check your own mortgage terms because older or specialist products can use different arrangements.

3. Does Newcastle Building Society offer 95% mortgages?

Yes. Newcastle’s September 2026 standard mortgage range includes products up to 95% LTV, subject to affordability and lending criteria. Specialist First Step products can currently go as high as 98% LTV for qualifying first-time buyers.

4. What is the Newcastle Building Society First Step mortgage?

First Step is a lower-deposit mortgage for eligible first-time buyers. Newcastle currently states that it can allow borrowing up to 98% of the property’s value, with a minimum deposit of 2% or £5,000, whichever is higher, subject to the full product and lending criteria.

5. Is a Newcastle mortgage with a £999 fee cheaper than a fee-free deal?

Not automatically. The fee-paying deal normally has a lower interest rate, but whether it costs less overall depends on the mortgage balance, deal length and other costs. Smaller mortgages can make a £999 product fee proportionately more significant.

6. Can existing Newcastle mortgage customers switch to a new rate early?

Newcastle says eligible existing customers can switch to a new product up to three months before the current mortgage product ends without paying an Early Repayment Charge for ending that product early. The Society normally contacts customers around 16 weeks before the end date.

7. Does Newcastle Building Society offer remortgages?

Yes. Newcastle offers remortgage products for eligible borrowers moving from another lender. It currently advertises borrowing up to 95% LTV in qualifying cases, selected free standard valuations on properties up to £500,000 and access to its mortgage advisers.

8. Can I overpay a Newcastle Building Society mortgage?

Many Newcastle products allow some penalty-free overpayment, but the amount depends on the mortgage terms. Newcastle currently advertises specific overpayment allowances on its remortgage range. Always check your own mortgage offer before making a large payment because an ERC may apply.

9. What is the Newcastle Building Society mortgage phone number?

The Society currently publishes 0345 601 0014 for mortgage enquiries. For customers experiencing mortgage payment difficulties, the dedicated number currently published is 0345 702 3083. Check Newcastle’s official contact page for current opening hours.

10. Is Building-society.org the official Newcastle Building Society mortgage website?

No. Building-society.org is an independent information website. Use newcastle.co.uk for live mortgage rates, applications, affordability assessments, product switches and account-specific mortgage information.

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