But Labour MP Stuart Nash thinks there needs to be a change in how Inland Revenue treats tax debt.
"That's an awful lot of uncollected tax. Good on them for managing to collect a bit extra, but it's still increasing overall and we need to do something different," he said.
Mr Nash said only a fraction of the debt was for tax owed, most of it came from penalties and interest. He said if the IRD took a more co-operative approach, with a limited amnesty, letting people know that if they worked with them to pay back uncollected tax the penalties could be reduced or even removed.
"There's a whole lot of the debt that will never be recovered [as things stand]. It's better to get people engaged and paying something back, if they're not engaging they're not paying and nobody wins."
Mr McClay said amnesties had proven ineffective in other OECD countries and Inland Revenue wouldn't be implementing one here.
"Most taxpayers pay their fair share and IRD actively pursues those who do not. Sometimes payments or returns are late for a reason and I would encourage people to pick up the phone and talk to IRD as there are ways they can help, such as grace periods, instalment plans and relief from penalties and interest. An amnesty is not likely to prove fair to those who do pay their tax on time."
Mr Nash said he wasn't advocating for a total removal of penalties and interest.
"Some level of interest is fair to keep on. . . " he said.