UBS is the second cab of the rank predicting an August rate hike from the RBA.
Chief economist George Tharenou says a likely Q2 CPI outcome of 1.0 per cent on-quarter would be "quite uncomfortable" for the RBA, albeit to actually hike the RBA may also need the labour market data to remain resilient.
"However, a material upside surprise for CPI of over 1.0 per cent would be a likely trigger for a rate hike of 25bps in Aug-24.
"This is because it would indicate the prior trend of inflation slowing has ended, and it would also show a re-acceleration of inflation momentum."
"Our new CPI forecasts make a rate hike in August a 'close call'…however, we see enough evidence to change our base case view."
"Hence, we now expect the RBA to hike the cash rate 25bps in Aug-24, to 4.60 per cent." Tharenou also sees risk of a follow-up hike of 25bps, with the most likely timing in Nov-24, and then in Feb-25.
But a hike in Nov-24 would be "optically' difficult to explain" if headline CPI drops back to a 2-handle as seems likely, while a hike in Feb-25 would also be problematic if the unemployment rate has increased further to around estimates of the non-accelerating inflation rate of unemployment of 4.25-4.25 per cent.
"Nonetheless, we still expect rates to remain higher for longer," he adds.
"We delay the timing of the first rate cut of -25bps until Aug-25 from Feb-25, and then another -25bps in Nov-25, taking the cash rate back down by the end of 2025 to 4.1 per cent, which is 75bps higher than our prior forecast."