Glossary · Self-assessment
Preliminary tax
Your payment on account of this year's tax, due by 31 October.
Preliminary tax covers the income tax, USC and PRSI you expect to owe for the current year. To avoid interest, pay at least the lowest of these: 90% of this year's tax, 100% of last year's, or 105% of the year before last (by direct debit only).
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Related terms
Preliminary tax options · Pay and file · Balance of tax
Source: Revenue: What is preliminary tax?
All terms · General information, not tax advice.