Treasury Minister Alf Cannan says the government's income will be less than expected next year because of a variety of changed circumstances.
During this week's House of Keys sitting he faced a question from North Douglas MHK David Ashford about why forecasts from 2018 onwards are now lower than they were last year.
Mr Cannan said his budget this year had different circumstances to contend with and it's not unusual for predicted figures to change.
But he said he still had confidence in the numbers he'd cited this year:
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