NAB vs Westpac:Which is more popular?
In September 2026, NAB had more branded searches than Westpac among credit cards in Australia. NAB had about 27,100 branded searches, while Westpac had 22,200. NAB made up 3.6% of all credit card searches we track, and Westpac accounted for 3%. When we asked ChatGPT and Google AI Overviews about credit cards, NAB and Westpac each appeared in one of the five answers.
Who do people search for more?
NAB, about 22% more searches than Westpac
Who does AI mention more?
Both were mentioned in 1 of 5 answers.
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Top credit cards in ChatGPT and Google AI Overviews
In three ChatGPT questions and two Google AI Overviews, NAB and Westpac were each mentioned in one out of five: not in any of the three ChatGPT answers, but in one of the two Google AI Overviews.
Most recommended by AI
Brands get a higher ranking if they are mentioned earlier in the answers.
Mentioned by AI
Each dot is one answer, filled in when that answer mentions the brand.
American Express4 of 5Named in 3 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Coles2 of 5Named in 2 of 3 ChatGPT answersNamed in 0 of 2 Google answers
CommBank1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
ANZ1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Latitude1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers- NAB1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
Westpac1 of 5Named in 0 of 3 ChatGPT answersNamed in 1 of 2 Google answers
St.George0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
Bankwest0 of 5Named in 0 of 3 ChatGPT answersNamed in 0 of 2 Google answers
See every answer about credit cards
5 answers
Asked ChatGPT
“What's the best credit card in Australia?”
Asked ChatGPT
“Which credit card should I get with no annual fee?”
Asked ChatGPT
“What's the best rewards credit card in Australia?”
Searched Google, AI Overview
“credit card”
Searched Google, AI Overview
“credit cards australia”
Brands are shown in the order each answer named them. The survey took place in Australia on October 27, 2026.
Share of searches by month for NAB, Westpac. The figures are in the table below the chart.
View monthly share of searches table
| Month | St.George | Bankwest | CommBank | ANZ | Latitude | NAB | Westpac | Coles | American Express |
|---|---|---|---|---|---|---|---|---|---|
| Oct 2025 | 54.4% | 30.1% | 2.7% | 2.7% | 2.2% | 2.2% | 1.8% | 3.2% | 0.79% |
| Nov 2025 | 55.1% | 30.5% | 2.7% | 2.7% | 2.2% | 2.2% | 1.8% | 2.2% | 0.65% |
| Dec 2025 | 59.2% | 26.8% | 2.4% | 2.4% | 2.4% | 1.9% | 1.9% | 2.4% | 0.7% |
| Jan 2026 | 56.6% | 25.8% | 3.4% | 3.4% | 2.8% | 2.8% | 2.3% | 2.3% | 0.82% |
| Feb 2026 | 58% | 26.3% | 2.8% | 2.8% | 2.3% | 2.8% | 2.3% | 1.9% | 0.69% |
| Mar 2026 | 54% | 29.9% | 2.6% | 2.6% | 3.2% | 2.6% | 2.2% | 2.2% | 0.64% |
| Apr 2026 | 58.6% | 26.5% | 2.3% | 2.3% | 3.5% | 2.3% | 1.9% | 1.9% | 0.57% |
| May 2026 | 58.4% | 26.5% | 2.3% | 2.9% | 2.9% | 2.3% | 1.9% | 2.3% | 0.57% |
| Jun 2026 | 58.6% | 26.5% | 2.3% | 2.3% | 3.5% | 2.3% | 1.9% | 1.9% | 0.57% |
| Jul 2026 | 53.5% | 29.5% | 2.6% | 2.6% | 3.9% | 2.6% | 2.1% | 2.6% | 0.63% |
| Aug 2026 | 49.5% | 27.9% | 5.3% | 3.6% | 3.6% | 3.6% | 2.9% | 2.9% | 0.71% |
| Sep 2026 | 50.5% | 28.1% | 4.4% | 3.6% | 3.6% | 3.6% | 3% | 2.4% | 0.59% |
NAB and Westpac sell other things too, so only their searches that name this product count here, like “nab credit card”.
How has the NAB and Westpac comparison changed over the last 12 months?
3 findings
- NAB was ahead of Westpac in every measured month of the 12 months ending September 2026.
- Across the 12 months ending September 2026, NAB’s share of searches among credit cards in Australia moved from 2.2% to 3.6%, and its estimated monthly branded searches moved from 18.1K to 27.1K.
- Across the 12 months ending September 2026, Westpac’s share of searches among credit cards in Australia moved from 1.8% to 3%, and its estimated monthly branded searches moved from 14.8K to 22.2K.
How did search popularity change for Australia credit cards in September 2026?
2 changes
NAB’s share of searches among credit cards in Australia has gained ground for 3 months in a row, from 2.3% to 3.6% in September 2026.
Westpac’s share of searches among credit cards in Australia has gained ground for 3 months in a row, from 1.9% to 3% in September 2026.
How are branded searches counted?
2 search terms
Brandwave collects information about searches that people make online using NAB’s and Westpac’s names. When viewed over time, estimated search volumes for these branded terms can be used to understand whether interest in the brands is growing, holding steady, or fading.
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