Personal Cheat Sheet (DRAFT) by bobbey

ArithOp allows for simple calcul­ations. It requires three compulsory parame­ters: formula contains the calcul­ations to perform; output_var indicates the variable where results are stored; and TAX_UNIT indicates the assessment unit for the calcul­ations performed.

Elig determines the eligib­ility for of a unit according to a specific condition. It requires two parame­ters: elig_cond that determines the condition, and TAX_UNIT that determines the assessment unit.

Elig and ArithOp can be combined via the parameter Who_Mu­st_­Be_Elig. Depending on the selection, this parameter ensures that calcul­ations of the ArithOp are carried out if, one, one_adult, all, all_adults or nobody in the assessment unit fill the conditions defined defined in Elig.

BenCalc is a powerful function typically used to implement means-­tested benefits that consist of several compon­ents. It combines the functi­ona­lities of Elig and ArithOp and has 4 compulsory parame­ters: Comp_cond defines a condtion; Comp_perXX calculates a formula an applies it the assessment unit; Grp/No groups together condition and formula; outputvar and TAX_UNIT.

SchedCalc is used in progre­ssive taxes to define a tax schedule. It has various parameters that can be used, such as: tax bands (Band_UpLim / Band_L­owLim), tax rates (Band_Rate) and tax base (Base). These parameters are grouped together via Grp/No. To split the base and apply the schedule separately the parameter Quotient can be used.

DefConst allows to define tax-be­nefit policy parameters as constants (e.g. monthly amounts, income thresh­olds, maximum amounts, etc.). For notation purposes, constants are notated with a $ prefix.