factors to consider if purely from tax perspective: & H0 D% t* W8 ` - \9 N# X4 n; E7 o& Xtotal additional income 6 x, c5 s! b- O7 Y) u4 w
total taxes paid (assume it's not a cash job)& f7 {: _0 r$ K4 T5 S+ r( C
total tax credit transferrable to working spouse ' r: h1 }$ U" v) R* \total tax credit for child day care 2 L* |5 {, J3 V& ?( P0 \total day care cost1 z; s4 ~) Z5 Q+ X
7 Y5 W8 K% Y( ^
so the formula is: 4 Q7 X1 r0 H% P! {; A3 H6 N+ V7 g% G5 X2 k r3 W6 E5 a3 M
total 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.