The Reserve Bank is revealed to have blamed Australia's major banks, accusing it of make profits on interest rates, saying the recent series of ''super-sized'' rate rises had outpaced rises in the banks' funding costs.

The RBA, in an analysis of rate movements, posted that the major banks committed the offends on excess pricing, with lending rates surpassing rises in funding costs by up to 25 basis points - or a quarter of 1 per cent - since the onset of the credit crisis.

Amidst signs that households are again feeling the squeeze on loan payments, the comments by the RBA emerged to gainsay the claims made by the big bank executives that they need to lift rates by more than official increases to compensate their funding costs.

Recent earnings updates from the big four banks confirm their strong emergence from the global financial meltdown to be among the best-performing in the world, with net profits this year expected to exceed $20 billion.

''For the major banks, the increases in lending rates have more than fully offset their higher funding costs,'' the RBA said.