Exhibit (j)

           CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We hereby consent to the incorporation by reference in this Post-Effective
Amendment No. 45 to the registration statement on Form N-1A ("Registration
Statement") of our report dated August 15, 2007, relating to the financial
statements and financial highlights which appear in the June 30, 2007 Annual
Report to Shareholders of the Natixis Cash Management Trust - Money Market
Series (formerly IXIS Cash Management Trust - Money Market Series), the only
series of Natixis Cash Management Trust (formerly IXIS Advisor Cash Management
Trust), which is also incorporated by reference into the Registration
Statement. We also consent to the references to us under the headings
"Financial Performance" and "Independent Registered Public Accounting Firm" in
such Registration Statement.

/s/ PricewaterhouseCoopers LLP
PricewaterhouseCoopers LLP
Boston, Massachusetts
August 23, 2007