Nationwide’s mortgage API

Here at Nationwide, we’re always looking for ways to help brokers place business simply and efficiently.

With this in mind, we’ve developed a mortgage Application Programming Interface (API) which allows Remortgage and New Purchase Decision in Principles (DIPs) to be created in third party platforms. 

The benefits of using Nationwide’s API

The customer data entered into your CRM platform will be transferred to the third-party platform. This means you don’t need to duplicate all the information. This makes it 10-15 minutes quicker to obtain a DIP and reduces keying errors.

You can also obtain DIP Certificates for New Purchases applications within third-party platforms.

Next steps after obtaining your API DIP  

  • The third party platform will provide a case reference and a link to NFI Online. Follow this link to pre-populate data into NFI Online.
  • Log into NFI Online and use the case reference to find the case.  
  • Proceed through DIP to get the decision and then continue to Full Mortgage Application (FMA).  

If the DIP result is Refer, you’ll need to wait until it's accepted to progress. 

For more information, check out our DIP refer page.

Third party platforms using our API

  • Twenty7tec - Support can be found here
  • Smartr365 - Support can be found here
  • Acre - Support can be found here
  • Iress - Support can be found here

We are working to integrate with other third parties and this page will be updated with further details.

What you can submit through the API

We’re still developing our API, so the application types that can be submitted through these third party platforms are limited. You can review the below information to check whether your application can be submitted through the API.

Any applications that cannot be submitted through the API, can continue to be keyed via NFI Online.

Applications that can be done through API


Third Party Platform
Twenty7tec
Smartr365
Acre
Iress
Platform name
 Apply
Smartr365
Acre
Lender Connect

CRM Platforms
The Hub
Midas Pro
Toolbox
N/A
Acre 
Xplan
mortgage


Application
type
New Purchase
  
Remortgage 
  ✔ 
Application
stage
DIP
  ✔ 
Product
reservation
  ✖ 
FMA
  ✖ 
DIP
reprocessing 
  ✖ 
DIP
certificates 
  ✔ 

If you want to make changes to a DIP keyed on a platform that doesn't allow DIP reprocessing, you can still pre-populate the DIP into NFI Online and use the 'Change Data' function to make changes.

Which application types can be submitted

You will acquire standard Purchase and Remortgage DIPs within our API provided the case doesn’t have any of the features called out in the lists below. 

Which application types can be submitted
Application type Twenty7tec All other third party
providers
House purchase and
Remortgage 
House
purchase 
Remortgage 
Lending into retirement
Additional Mortgages and
subsequent charges
Self employed
Contractors
(subject to criteria)
Temporary contracts
(subject to criteria)
More than one job
One or more applicant is
not British or Irish
Applications keyed by
an Administrator
BFPO Address
Any applicant is retired
Properties without a
street name
Not the ‘Owner Occupier’
of the security property
N/A
Porting 'like for like' or
with repayment/interest only
top up
*
N/A
Helping Hand
**
N/A
Right to Buy
Help to Buy
Equity Share
Shared Ownership
Restricted Resale Price
N/A
Genuine Bargain Price
N/A
Interest only & part and part

*Porting for Twenty7tec is only available for DIP and not product reservations.

** When applying through Twenty7Tec, you'll need to select ‘Yes’ when asked ‘Are they applying for a Helping Hand product’. You can find this under the Mortgage Details section of the DIP.

Existing Nationwide Borrower Moving Home

For existing customers moving home, like for like affordability is available as long as a valid Nationwide account number is provided. You can also obtain an API DIP decision for existing customers; however you'll be unable to pre-populate this DIP into NFI Online

Technical support