The minimum contribution that a tenant must make towards their rent is €30pw for a single person or one-parent family, or €35pw for a couple with or without children.
In addition, a tenant may have to make additional payments to rent depending on their income - for a one-adult family on Jobseeker's or One Parent Family Payment, there is an additional €2 pw to be paid. Their expected contribution is therefore €32 per week.
There is no discretion in these amounts, as they are set down in legislation.
If the monthly rent is €925 (max limit for one adult/two adults with 2 children), then the maximum rent supplement payable would be €181.46 per week or €786.30 per calendar month.
The above figure assumes that the tenant has no additional income that would be taken into account - if there is extra income, rent supplement will be less.