Generally, there are two calculation methods at your disposal and you can choose either of them to estimate and calculate your SR&ED claim: Traditional Method: The traditional method will require you to itemize your overhead and related expenditures. Proxy Method: This is a simplified method that allows you to claim around 60% of salaries and wages for employees who are directly involved in your SR&ED-qualified work. However, most companies choose the second method to prepare and proceed with their application since it is easier to estimate and keep the record. Quickly calculate the amount that you can claim from the SR&ED project.