Last time I checked into this, the answer was no. This is very much a more EU-focused service, based on the stuff they offer. And even then, they don't pre-collect for VAT like Patreon does.
(I just checked and couldn't get a definitive answer but since it's been 5 years [1] since there was any update on a ticket requesting the ability to offer invoices in PDF form of your monthly receivables, my gut instinct says the answer is still, "no")
This is just my assumption, but I think liberapay being targeted at "to individual" payments/donations is the reason why they don't push too hard in adding these kind of features.
(I just checked and couldn't get a definitive answer but since it's been 5 years [1] since there was any update on a ticket requesting the ability to offer invoices in PDF form of your monthly receivables, my gut instinct says the answer is still, "no")
[1]: https://github.com/liberapay/liberapay.com/issues/714