You are partially right. It depends upon which of Trump's two accounts one donates to...
On Trump’s personal fund, it dictates that of all donations raised, only 50% will go towards a recount effort, and that “50% of each contribution, up to a maximum of $2,800 ($5,000), [will] be designated toward DJTFP’s 2020 general election account for general election debt retirement until such debt is retired”.
On his joint fund with the RNC, the donations work as follows: “60% of each contribution first to Save America, up to $5,000/$5,000, then to DJTP’s recount account, up to a maximum of $2,800/$5,000. [And] 40% of each contribution to the RNC’s operating account, up to a maximum of $35,500/$15,000.”