The Base Needs figures represent the after tax-income the client is projected to need to support a desired lifestyle for the foreseeable future. The figure does not include things like insurance premiums, debt payments or other incidental expenses such as a travel budget. Those may be added on further on in the model.
On the Income by Result chart, the Base Needs stream is described with the landscape line moving across the time frame outlined. The effects of inflation are shown by the slope of the line, given the Cost of Living Adjustment (COLA) assumed in the model. The folder for Joint Assumptions on the Client Information page will allow for changes to the COLA rate.