Those wanting a mortgage from Kiwibank will have to make sure they've got the full 20 percent deposit.

LVR rules from the Reserve Bank dictate a bank can't have more than 10 percent of the total value of its loan books with low deposit borrowers.

Kiwibank has now come too close to its own limits on low equity lending, so put a halt on such loans at the end of last week.

Spokesperson Bruce Thompson says it should be back to normal in a few weeks.

"Anybody who's thinking about it, they should still make contact. But it may be that they may have to wait a little time before we're actually able to approve their applications."