Here's which Centrelink payments are going up and by how much

More than 5.3 million Australians will receive higher social security payments within weeks under the latest round of indexation.

The new pay boosts will take effect from 20 September, increasing the rates of the pension, JobSeeker, Youth Allowance, Parenting Payment, ABSTUDY, and Rent Assistance payments.

"An extra $4 billion of cost-of-living relief will begin to flow to over 5.3 million Australians," Social Services Minister Tanya Plibersek said.

"Whether it's paying the rent, putting food on the table or covering everyday bills, this extra support will help Australians on income support make ends meet.

"We'll continue to make sure the system is there to support those who need it most, ensuring that everyone can make ends meet and no one gets left behind."

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However, Cassandra Goldie, CEO of the Australian Council of Social Service, said that "while every extra dollar counts", routine indexation was not enough to lift people out of poverty and deprivation.

"People receiving JobSeeker are struggling to afford three meals a day and keep a roof over their heads," she said in a statement provided to SBS News.

"The government must deliver a significant real increase to JobSeeker, Youth Allowance, Parenting Payment and related supports so that people don't have to go without the essentials."

Social security payments are generally indexed twice a year to maintain their value and match changes in the cost of living and average wages. Here is how much each payment will increase by.

The maximum rates for age pension will be lifted by $36.80 to $1,237.70 a fortnight for single pensioners. Couples will receive a $55.60 increase to their combined fortnightly payment, bringing it to $1,866.00.

Pay rates for non-resident single pensioners will increase by $5 a fortnight, while partnered non-resident pensions will increase by $1.70 a fortnight each.

For singles without children who receive JobSeeker payments, the highest rate increases by $16.20 to $833.70 every two weeks. For singles with dependent children, the rate will increase by $17.30 to $892.80.

The rate for couples will rise by $14.80 per person, bringing the fortnightly payment to $763 each.