CommBank research showed consumers were spending across January, with the latest Business Sales Indicator (BSI) up 0.5% for the first month of 2017.
The report, released on Monday by the Commonwealth Bank, is a key monthly indicator of the state of the local economy.
Overall, 16 of the 19 industry sectors analysed posted higher sales in trend terms in January. One of the strongest gains in sales occurred in automobiles and vehicles, up 2.1%.
Sales in retail stores fell by 0.7%, while spending at amusement and entertainment businesses fell 0.2%.
The BSI tracks the value of credit and debit card transactions processed through CommBank point-of-sale terminals.
It covers spending broadly across the economy, not just retail sales, and includes spending on vehicles, personal services and airlines.
Annual trend growth in sales continued to be strong at 5.8%. That's the fastest growth in almost a year.
January spending was ahead of the long-term average monthly growth pace of 0.4%, according to CommSec chief economist Craig James in a note.
The more volatile seasonally adjusted BSI fell by 0.2% in January after falling by 1.5% in December and rising by 3.8% in November.
Sales were stronger in all states and territories last month, with the ACT and Tasmania seeing the strongest gains across the country at 1.1%.
"The outlook for spending remains favourable, with interest rates low, rising home prices boosting wealth, and job ads and vacancies lifting to five-year highs," James said.
CommSec said it "sees no change in official interest rates for the foreseeable future."