In New Zealand, tax codes are used to help employers or payers determine how much tax to deduct from an individuals pay, benefit, or pension. Each income source, such as a job or government pension, has a different tax code, and many tax codes exist, such as M, S, M SL, CAE, NSW, and SB. The SH tax code is used if an individuals annual income from all jobs is between NZD 48,001 and NZD 70,000 and has no student loan. If an individual has a student loan, they should use the SH SL tax code instead. The rate of the secondary tax depends on the total amount of income from all jobs. If an individual is under the wrong tax code, they may end up with a large tax bill at the end of the year. It is important to notify the employer or payer if the tax code changes.