Taxpayers who filed requests to make changes to their income tax returns may be waiting up to 47 weeks for those changes to be processed by the Canada Revenue Agency, according to a watchdog.

That’s more than double the standard time for the CRA to process what it considers “complex” adjustments to T1 tax returns.

Taxpayers’ ombudsperson François Boileau published a release Thursday announcing that an examination of the CRA is being conducted. This, Boileau says, was done after the office received a “consistently high level of complaints about delays in processing T1 adjustment requests.”