Changes to your benefit and credit payment amounts 

For example, those who receive the Canada child benefit (CCB), including any related provincial or territorial payments, may notice changes starting with the payment issued July 20, 2018. The payment amount issued on this date will be their monthly CCB payment for the year, until June 2019, unless their situation changes.
 
Other benefit and credit payments that depend on information submitted in a return and follow a similar cycle include the GST/HST credit (including any related provincial credits) and the Guaranteed Income Supplement.

Do your taxes to receive benefit and credit payments
 
All Canadians need to file their taxes and keep their personal information such as their address and marital status up to date with the CRA to make sure their benefit and credit payments are not interrupted. Due to changes to individuals’ family income or personal information (such as, changes in number of dependents, marital status, or province/territory of residence), some individuals who were entitled to benefits the previous year may no longer qualify to receive them or may receive a different amount.
 
For those who have not yet filed a return, the CRA has helpful information and services available to make doing your taxes fast and easy. Also, individuals should consider filing their returns for any outstanding years as they may be entitled to retroactive payments of the CCB, the Canada child tax benefit, national child benefit supplement, the universal child care benefit, and related provincial and territorial payments, if they were eligible in those years.