<prompt> Human: As the title says, what percentage works for you, and why did you land on it?Full disclosure: I understand that there is no correct answer, and each person needs to evaluate for themselves the riskreward factor of investments versus the guaranteed return on paying a loan off plus the tax break for student loansetc - but thought this might spark a good discussion andor be a decent reference for people without a clue on where to start.Personally, Im going very conservative and am paying down all of my loans with an interest rate greater than 3. I chose that number because, since 1914, the average annual inflation rate hovers around 3.2. This means that any loan I leave outstanding and pay the minimum on beats inflation over time in theory.What about you, whats your magic number?  <response>: My personal priority order goes something like this:1. Get the full employer match for my 401k2. Pay off high interest andor unsecured debt3. Max out my tax-advantaged retirement accounts4. Pay off all other debt5. Invest in taxable accountsWhat I consider high interest varies depending on the type of the loan. I did defer 401k contributions beyond the match to pay off my student loans at 5, and I would probably defer 401k contributions for a car loan at 8. I doubt I would ever defer 401k contributions to pay down a mortgage.However, I would pay down even an interest-free loan before Id invest in a taxable account. This isnt because I think its the right choice by the numbers; its because I get very stressed out from being in debt, and my peace of mind is worth more to me than the foregone returns. 