Canada Revenue Agency (CRA) and corresponding provincial tax authorities require all SR&ED claimants to submit their claim no later than 18 months after the effective fiscal year. For example, for a claimant with a fiscal year ending on December 31, 2018, it is required that the requisite documents are submitted no later than June 30, 2020. With that being said, CRA encourages taxpayers to submit their claims within a six-month time frame post-fiscal year-end, alongside their annual filings, because processing times for SR&ED tend to be much faster. In fact, if submitted within six months post-fiscal year, CRA reports a 60-day turnaround for complete claims. Claimants who submit incomplete claims can expect longer processing times.