Based on Kitces 20 years of SWR Research https://www.kitces.com/march-2012-issue-of-the-kitces-report-expanding-the-framework-of-safe-withdrawal-rates/   
                     
         
                     
  Base Withdrawal Rate       4.50% Highest "baseline" rate      
                     
  Controllable:                  
    Fees (Advisor+Expense ratio)/Alpha     Fees net of expected outperformance    
    Tactical Asset Allocation  
         
    Diversification  
  Limitied historical data makes this theorhetical  
                     
  Preference:                  
    Spending Flexibility  
         
    Legacy/Longevity Hedge  
         
                     
  Facts:                  
    Tax drag on taxable investments  
  Taxable investment account only    
    Time Horizon  
         
    Valuation Environment  
         
                     
  Your "Safe" Withdrawal Rate              
                     
                     
  Appendix - Research results for each decision                
  Fees Reduce safe withdrawal rate by 35% of the associated expense ratio and investment advisory fees.        
  Alpha Increase safe withdrawal rate by 35% of the expected outperformance.            
        Do not include financial planning "alpha"            
                     
  Tactical Asset Allocation                
    Tactical Asset Allocation   0.20%            
    Buy & Hold   0.00%            
                     
  Tax drag on taxable investments       Pre-tax distributions outright cut the spendable portion of the withdrawal rate.   
    Low-tax   -0.25%   Another way to think about is that SWR above is your pre-tax withdrawal amount.  
    Moderate-tax   -0.50%    
    High-tax   -0.75%            
                     
                     
  Legacy/Longevity Hedge                
    Very important   -0.20%            
    Moderately important   -0.10%            
    Not important   0.00%            
                     
  Time Horizon                  
    40 year time horizon   -0.50%            
    30 year time horizon   0.00%   Original research        
    20 year time horizon   1.00%            
                     
  Diversification                  
    Single Country Bias   0.00%            
    Globally Diversified Portfolio   0.50%            
                     
  Spending Flexibility                
    10% cut in bear markets   1.00%            
    Follow spending smile pattern   0.50%            
    Prefer no annual spending cuts   0.00%            
                     
  Valuation Environment                
    High Valuation    0.00%            
    Moderate Valuation    0.50%            
    Low Valuation   1.00%            
                     
Note - The calculator above has some variations from the original article based on the creator's discretion. This spreadsheet is not to be used as investment advice. You're responsible for your own interpretation of the research. This is a tool for educational purposes only.