factors to consider if purely from tax perspective:0 L6 p- \1 C/ S7 y* U& v
) y, e2 m- r9 `6 Q- p: d
total additional income + M; C/ e* K$ y9 L0 w+ y& ytotal taxes paid (assume it's not a cash job); u5 M. q) L) Y9 e, {$ T1 H7 v
total tax credit transferrable to working spouse 0 Y1 j) P" W- E0 q7 R# utotal tax credit for child day care8 K' ~$ S# w0 s3 S6 l7 P
total day care cost/ F" ~ B. F* J6 {8 v, N9 M
0 F2 z7 O- _0 J. W a3 f* D: T& oso the formula is:! U5 X9 H( k" x& V1 Z2 L
+ @* v# B+ V9 T( q# Ptotal additional income - total tax paid - total transferrable tax credit to working spouse (this can be claimed if one of the spouses has 0 or very little annual income) - total child day care tax credit =/</> total cost of day care.