A Waiariki Women's Refuge worker said domestic violence had a significant impact on victims' employment.
Refuge workers usually advised victims to take a week off work following violence, so the 10 extra days' leave would be "very valuable".
"They need time off work ... some of them have been bruised and are needing medical attention." However, many women would still be too embarrassed to tell their bosses what was really going on, she said. "A lot of the barriers are the women themselves who are too shy to tell their bosses, but we have encouraged them to do that because [employers] can be very sympathetic."
But Business New Zealand chief executive Phil O'Reilly said domestic violence required a "societal response" rather than a workplace solution.
"[Domestic violence] is only one of a number of these things that happen domestically or in society that have an impact on the workplace, so it's not unique in that sense."
Flexible work arrangements for domestic violence victims were already "pretty much covered" by existing law and most employers were supportive, Mr O'Reilly said.