"We have seen the historical lows go. But rates have increased much lower than expected."
George said low inflation meant central banks had held rates low in a bid to stimulate spending and economic growth.
In New Zealand retail banks had also become much more selective about home loan lending over the past year in response to fears of a property market melt-down.
"There has been a lot of pressure on credit quality. Banks have become far more selective in terms of their risk appetite."
George said based on what had happened in the past 12 months it was hard to forecast where interest rates would go in 2018.
Economists are predicting the Reserve Bank won't make any moves to increase the official cash rate until late this year or even next year.
There is some suggestion the next rate change may also be down if inflation remains persistently low.
"It speaks to the uncertainty," he said.
But David Tripe, Massey University's banking expert, said looking at the yield curve suggested interest rates would be higher by the end of 2018.
"If we start to see bubbles of inflation from the new Government that might encourage a rate rise."
Increasing the minimum wage to $20 an hour by 2020 would push up wages at the lower end which was likely to increase inflation, Tripe said.
That could mean short-term rates start to rise as banks price in an increase in the official cash rate which affects floating and short term rates more than longer-term fixed rates.
"It is much more likely rates are going to rise over the next two years than fall."
"There isn't really much good news. In a low inflation environment what can you expect?"
He urged savers to be on the look out for specials which banks sometimes offered to help manage their books when a large amount of deposits matured at once.
The weighted average six-month term deposit rate rose just 2 basis points between December 2016 and November 2017 to 3.32 per cent, Reserve Bank figures show.