Glossary · Self-assessment
Preliminary tax options
The three ways to work out a safe amount of preliminary tax: 90%, 100% or 105%.
90% of this year's tax suits a year that's going worse than the last. 100% of last year's tax is safe whatever happens this year. 105% of the year before last is only available by direct debit, and not if that year's tax was nil.
Work it out
Related terms
All terms · General information, not tax advice.