Phineas and Ferb do something big everyday. Often those are massive projects that would require a seroius/millionare amount of money.

Is there any explanation in or out of universe about the fundings Phineas and Ferb use to build their projects?

  • My memory of the show is a little hazy, but some of their projects probably involved not merely millionaire amounts of money, but billionaire amounts, trillionaire amounts, and even more-money-than-in-the-entire-world amounts, as well as technology not invented yet. So a convincing explanation would be very interesting. Commented Aug 13, 2018 at 4:40
  • If anything, it means a convincing explanation does not and should not exist.
    – Napoleon Wilson
    Commented Aug 15, 2018 at 9:17
  • 1
    They don't waste their pocket money on sweets?
    – komodosp
    Commented Aug 17, 2018 at 8:15
  • For what it's worth, Dr. Doofenschmirtz likely operates on a similar budget as Phineas and Ferb (maybe an order of magnitude less) for his -inators, and he seems to build one every day as well. It's been noted several times on the show that Doofenschmirtz funds these projects with the alimony he receives from his ex-wife Charlene, who apparently is "loaded".
    – user45266
    Commented Jan 24, 2020 at 2:11

3 Answers 3


As of my Knowledge, this question makes little sense and is hypothetical, because there exists no Universe where the summer holidays never end!!

Although after surfing on the net, I found a descriptive answer (though not fully satisfying).

Money for inventions , its safe to assume that they get some sort of Pocket Money and also they don’t waste that money on anything , cause why would they? (I know that pocket money isn't enough)

Also , also the people who supply the materials are cool enough ,when they say this- Aren't You a Little Young” for all the time, but on the other hand, Phineas always says that , “Yes , I am ” : )

The best case scenario is when they have their pocket money that gets them enough for their first project (invention) , consider when they built the roller coaster or the Elevator to the moon , people pay for that , and they charge for it (please , let me in that , I will pay you whatever you need , that’s possible) , right ( It may be correct) . I know the kids don’t pay that much but we will consider it. "

Also, we literally don't know that Phineas and Ferb know that if Perry is an agent. What if they do know, and make a deal with Perry with the bonus he always gets after defeating Doofenshmirtz.

In some cases, they may also recycle the broken parts of Dr. Heinz Doofenshmirtz Machines.

Well, I would only like to conclude that there could be many possible theories. Since, it is only an animation, we can't come to a final conclusion. It still will remain a mystery!

Source: https://www.quora.com/Where-did-Phineas-and-Ferb-get-all-that-money-for-their-inventions

  • The single quotation mark in front of ""Money for..." suggests this might be a quote from whatever external source you consulted (athough the ending mark is somehow missing). If that is the case, please add a reference to said source (preferably by link) and put it in proper quotation markup.
    – Napoleon Wilson
    Commented Aug 15, 2018 at 9:10
  • Sure! I would do that Commented Aug 15, 2018 at 9:11
  • 1
    The quote should have spend some money on interpunction.
    – Roy
    Commented Sep 1, 2018 at 21:56

Probably they sold all their inventions as prototypes/finished products. We never see them permanently possessing any of their highly expensive and extravagant inventions. Also, they are not always destroyed. So it is safe to assume that someone anonymous pays them for all their inventions. Someone they themselves didn't know about. It might be Doofenshmirtz, as he is always related to their inventions, one way or the other; but it could also be OWCA (or both). We never saw the rollercoaster tracks destroyed, did we?

Their inventions are always successful. They even get permissions for their construction (a minor cannot get permissions)! So there must be a group funding them anonymously (and being responsible for them) and profiting out of their inventions. Lot of people could use the profits. For instance, someone has to raise funds for OWCA, and for Doofenshmirtz's evil inventions. They don't have a good business model and keep losing money all the time. It could all be funded by Phineas and Ferb's inventions. After all, all their activities are closely connected. If either of these three parties, Phineas and Ferb or Doofenshmirtz or OWCA stop their activities, the cycle always breaks. Why could that be? Because they depend on the kids inventions to fund their "good guy - evil guy" game. And Phineas and Ferb are always able to pull off their invention.

Desclaimer: None of this is official, this is just my fan theory.

  • 1
    this is an interesting theory, nut it could benefit from some evidence!
    – Daeron
    Commented Jan 7, 2019 at 0:24

Is there any explanation in or out of universe about the fundings Phineas and Ferb use to build their projects?

As far as I know, no episode in the existing 4 seasons explains the source of fundings Phineas and Ferb use to build their projects.

There are some attempts at explaining, e.g.:

  • Sponsorships 0:48
  • Speculative Investments 1:45
  • Low-Cost Projects 3:53
  • Monetize Contraptions 4:40
  • Sell Contraptions 5:15
  • Sell Blueprints 6:31
  • OWCA Secret Agents 7:01

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