1. a person who lists things separately and in detail
2. a taxpayer who chooses to list deductions separately rather than taking the standard deduction
Usage: tax terminology

Examples

• As a meticulous itemizer, she kept detailed records of all her business expenses.
• The accountant was known as an excellent itemizer who never missed a deduction.
• Tax itemizers must keep receipts for all their claimed deductions.
• He decided to be an itemizer this year because his charitable donations were substantial.
• The software helps itemizers organize their tax-deductible expenses.
• She’s a natural itemizer who lists everything from grocery items to project tasks.