SAPTO with user-defined thresholds

SAPTO with user-defined thresholds

new_sapto(rebate_income, new_sapto_tbl, sapto.eligible = TRUE,
  Spouse_income = 0, fill = 0, family_status = "single")

Arguments

rebate_income	The rebate income of the individual.
new_sapto_tbl	Having the same columns as grattan:::sapto_tbl, keyed on family_status.
sapto.eligible	Is the individual eligible for sapto?
Spouse_income	Spouse income whose unutilized SAPTO may be added to the current taxpayer. Must match family_status; i.e. can only be nonzero when family_status != "single".
fill	If SAPTO was not applicable, what value should be used?
family_status	Family status of the individual.