Changing your income estimate

Changing your income estimate for child support assessments

If you choose to estimate your income for the child support assessment, you can change your estimation during the year, or even cancel it, if your income changes.

• To make a new estimate, fill in another Estimate of income for child support assessment (IR104) form. You must show that your income has fallen by at least 15% from your original taxable income.
• To cancel your estimation, fill in a Cancellation of income estimation for child support (IR111) form.

The easiest way to complete these forms is from your online services account. Login or register now to submit them. Both forms are also available by calling our 0800 self-service line on 0800 257 773.

If your income does change or you have made a mistake in your estimate, please contact us immediately on freephone 0800 221 221. You may face a penalty for seriously underestimating your income.

Date published: 26 Sep 2010

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