Bias currents are DC and will produce a DC offset voltage if input resistances are non-zero so, matching the DC resistance in both inputs is the normal thing to do (should the offsets be problematic).
Be careful though; the bias current on its own applies to just a single input so, look for what is known as the offset current - this is the current that you cannot hope to equalize with matched input resistances. Reason: the difference in bias currents for the two inputs (the bit you can do nothing about) is called "offset current".
Having said that, if your op-amp is a FET input type then you will probably be wasting your time. It really only applies to op-amps with BJTs at their inputs.