Aspects of a method and system for a delta quantizer for rate reduction pre-coding matrices may include quantizing a change in channel state information in a MIMO pre-coding system onto a codebook and generating a pre-coding matrix based on at least the channel state information. The channel state information may be a matrix V and one or more associated singular values. The matrix V may be generated using Singular Value Decomposition (SVD) or Geometric Mean Decomposition (GMD). One or more columns of the matrix V may be selected based on the one or more associated singular values and may be combined to enable the generation of the pre-coding matrix. The codebook may comprise one or more unitary matrices. An index of an element of the codebook, onto which the change in channel state information is quantized, may be transmitted from a receiver to a transmitter.