Wondering, what is line 15000 tax return (formerly 150)? It lists your total income before deductions, also known as your gross income – your wages or salary from your T4, and also income from other sources.
Line 10100 was line 101 before 2019 tax year. Employment income – amounts you receive as salary, wages, commissions, bonuses, tips, gratuities, and honoraria. It is usually shown in box 14 of your T4 slip.