2024 Form 5330 Filing / Payment Question

I haven’t filed a Form 5330 in decades and now need to file one for the 2024 year. From what I understand, paper filing is still allowed for 2024, but e-filing will be required beginning in 2025. Is this correct?

A couple of related questions:

1. Since the IRS will no longer accept paper checks after 9/30 (or will they?), what’s the best method to make an electronic payment, and under what “tax form” should it be submitted (I don’t see Form 5330 specifically listed)?

2. If paper checks are still allowed for now, what is the correct mailing address? The Form 5330 instructions list Ogden, UT, but I’ve also seen a North Carolina address.

I also understand there will be penalties since the payment wasn’t submitted by 7/31.

Thanks in advance for any guidance!