difference in spending btwn 1 and 2 kids

[letsdoit]

our expense with one toddler is 27 k per year.  for child care and the rest of it .   
how do people's spending increase when they have a second?

[firelight]

Our kid expenses have almost doubled. Main culprits are childcare costs, diapers (we use cloth and disposables), snacks (we've resorted to more premade snacks than making them at home), clothes for baby (wrong season, wrong sizing from the first), etc.

[CindyBS]

depends on the stage

In the beginning - not too much.  I stayed home so childcare costs were the same between 1 and 2.  Kid 2 (same sex) wore virtually all hand me downs. Virtually everything else was purchased cheaply used.  Heck, for about 5 years kid 2 got kid 1's old toys wrapped up in a box from Santa Claus each X-mas.  It was only when Kid 1 starting getting suspicious that we started buying new stuff for presents.   Then it cost more for Diapers, food, pre-school etc.

My guys are teens now

As they grew

Definitely food way up
No need for childcare
Activities - 2 kids in a sport costs twice what 1 kid in a sport costs.
Things like electricity, water, etc. 
They still wear hand me downs, so we basically invest in 1 set of clothing that both wear. 

College will be the big one.

[formerlydivorcedmom]

Sometimes you can get a multi-kid discount - at day care, at activities like gymnastics, etc.  Sometimes you can't.

I don't think kid2 doubled our expenses.  Even though our kids were different genders, we reused most of the baby stuff.  Ours were 3.5 years apart, so by the time kid2 needed something, kid1 had probably outgrown it.  Kid1 literally got out of diapers the week kid2 came home from the hospital, which saved us $$$.  And kid1 started school when kid2 was still a toddler, so the daycare expenses were only astronomical for two years.

Now that they are in elementary/middle school, the main expenses are food, clothes, and activities/school fees.  Kid1 is in an expensive sport and is picky about what she wears; kid2 is in cheap activities and doesn't care what he wears.  He's waaaay less expensive than she is, but even at 9 years old, he eats more.