Mortgage Distribution By Income Bands

In NAB’ results today they included this slide on the gross income distribution of households in their mortgage portfolio. Gross income is defined as total pre-tax unshaded income for the application. This can include business income, income of multiple applicants and other income sources, such as family trust income.  And it relates to draw-downs from Oct 17 – Mar 18. ~35% of transactions have income over 200K for owner occupied loans, and ~47% for investment loans.

Now, I recognise that NAB has a skewed demographic in their customers, but, the proportion of high income households looked odd to me.

So I pulled the household income data from our surveys, including only mortgaged households. We also ask for income on a similar basis, gross from all sources. And we plotted the results:

The blue bars are the household gross income across the country for mortgaged households. The next two are a replication of the NAB data sets above.

Either they are very, very good at targetting high income customers, or incomes in their system are being overstated. I will let others decide which is the correct answer. What do you think?

 

 

Author: Martin North

Martin North is the Principal of Digital Finance Analytics

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