In Finom you have three different possibilities for sharing invoices to your accountant (and to anybody else you wish!).
First: you can give direct access to your account to your accountant creating a new Profile for him, this way he will always be able to access to your dashboard and check it by himself. You can chose how many profiles to add to your account by checking the page "Plans & Pricing".
Second: for each invoice you create, you can directly send it to your accountant by sending it to him via email or link
The third mean is to download the invoice and send it via PDF in a separate mail:
Try it and tell us your experience!