If I was approved for funding and didn't take the full amount at the start, can I still access the difference later?

Possibly. Typically, you have up to 30 days after receiving funding to request any additional funds. Once that window passes, you may need to wait until you’re eligible for renewal — unless you’re working with a financing provider that allows add-ons. That said, not all providers allow add-ons, so eligibility can vary depending on your financing provider.