Past lost wages are relatively easy to prove because you have already missed work and can easily add up the amount of compensation you are entitled to. Establishing past lost wages typically involves testimony and documentation from your employer to confirm your absences and the earnings you would have received had you been able to work.
Future lost wages, on the other hand, are more challenging to prove. You will have to supply evidence on the length of time you can reasonably expect to miss work, as well as whether you will or will not be able to return to work in some capacity. Parties typically heal over time to some degree and may be able to return to work part-time or full-time, which can make it even harder to estimate future lost income. Since this type of loss is more subjective, the value of future lost income will typically depend on your case’s unique factors.