"Do I want to sell a couple of buildings and self-fund? I don't know that I want to do that," he said on MSNBC's "Morning Joe."
The businessman, who has self-funded most of the $50 million his primary campaign has raised so far, attacked his opponents for taking money from so-called "special interests."
But with a general election bid likely to cost around a billion dollars per candidate, Trump may need to rethink his strategy. In addition to raising money for his own campaign, presidential party nominees are also expected to raise money for the party, in order to support down-ballot candidates.
"I really won't be asking for money for myself, i'll be asking for money for the party," Trump said. "I'm going to be making a decision over the next week."
There were signs this week that Trump is beginning to shift to a more traditional campaign financing strategy.
Veteran Republican campaign adviser Ed Rollins announced on Tuesday that he will join a pro-Trump super PAC, the Great America PAC. The group hopes to raise at least $15 million by the summer to bolster Trump's campaign.
Later that day, Trump spoke to Republican National Committee chairman Reince Priebus, who encouraged his fellow Republicans to unify around Trump. GOP presidential nominees typically join forces with the RNC to raise money for Republican campaigns.
Unlike the party's previous nominees, Trump does not have a fundraising infrastructure in place for his campaign, so he will likely need to rely heavily on the RNC and other party committees.
Trump stressed that any money raised would be used to help all Republicans, and not just himself. "Really, I won't be asking for money for myself, I'll be asking money for the party," he said. "It's something we're going to start on right away."