Practically all tax returns for 1989-90 have been processed by this time. Dublin tax district has been under considerable pressure in dealing with correspondence resulting from the processing of these returns. These difficulties are not matched in any other district. Most country districts are effectively up to date, with small manageable levels of correspondence in others.
The large volume of correspondence has arisen primarily due to the system of assessment which applied for years of assessment up to and including 1989-90. Under this system some incomes, e.g. trades, were assessable on the basis of income of the year preceding the year of assessment while other sources, e.g. dividend incomes, were assessable on the basis of the income of the year of assessment. This mixed basis of assessment resulted in two years returns being necessary to finalise the liability for one year for a significant number of taxpayers. Accordingly, the processing of the 1989-90 tax returns resulted in revised assessments for 1988-89 as well as assessments for 1989-90 in a large number of cases.