Consumers' plastic cards saw a bit less of the light of day last month.
Core retail spending, which excludes fuel and vehicle-related spending, was down 0.4 per cent on August, Statistics New Zealand said.
When the automotive sector is included the decline was 0.1 per cent.
The $4.4 billion in total retail spending charged to cards last month was 5.4 per cent higher than in September last year. Statistics New Zealand estimates that card transactions capture about 69 per cent of retail spending.
Spending classified as "hospitality" , which includes accommodation, bars, cafes and restaurants, and takeaways, continued to outperform, up 0.3 per cent on August, seasonally adjusted, and up 8.8 per cent on September last year.