"What we need is something that's complimentary and we need to think outside the square."
Local Government NZ's funding review was set to get underway shortly. Ms Webster had been appointed chair of a working group whose remaining members would be announced next week.
The group will publish an issues paper before Christmas and a final report in March next year.
Mr Yule said New Zealand's local authorities had a high reliance on rates which was unusual compared with overseas where the common approach was to have "multiple taxing powers" for resilience and fairness reasons.
A report prepared last year by the NZ Initiative for Local Government NZ recommended new regional taxes or a new formula for councils to receive a share of central Government funding.
Mr Yule said those were options which would be considered, "but we're not jumping to conclusions."
"Everything's on the table."
According to Local Government NZ documents, that includes local income, consumption, and payroll taxes and visitor and congestion charges.
But Associate Local Government Minister Sam Lotu-Iiga was distinctly unenthusiastic.
"We're not open in terms of reviewing that.
"They'll go through their exercise and they'll come up with their recommendations around that and I'll have a look at that at the appropriate time."
However regional taxes would not fly.
"We're not going down that track as a Government. The Minister of Finance has been pretty clear about that."
Local Government NZ's funding review - what's under consideration:
• Local income taxes
• Local consumption taxes
• Congestion charges
• Visitor charges
• Payroll taxes