Income tax: will the Commissioner adjust the business use of a motor vehicle if certain business journeys recorded in a log book are found to be either false, private or have not significantly complied with the log book requirements of the substantiation legislation?

Yes. If a log book entry: - records a journey as business but the journey is actually private; - is false or misleading; or - has not significantly complied with the requirements for a log book by virtue of section 82KTE the Commissioner shall redetermine the business percentage, as if that entry had not been made. Example: A taxpayer's log book shows a business percentage of 90%. However, he has included home to work trips as business journeys and these are private travel. His business percentage without these trips is 78%. The Commissioner will redetermine the business percentage to be 78%.