SBA funding limits depend on the type of SBA loan. SBA 7(a) loans can go as high as $5 million, while CDC/504 loans can fund up to $5.5 million for certain projects. If you pick an SBA Express Loan, you can get up to $500,000. And microloans have the smallest funding limits, only lending up to $50,000, although the SBA reports that the average microloan is about $13,000.