Accounting offices cannot grant themselves access to a client's KSeF account, so clients trying to hand off e-invoicing entirely are hitting a wall the system was built to enforce.
Why It Matters
KSeF requires the business itself, not its accountant, to authorise the accounting office inside the platform; the office has no way to log in with a client's credentials or assign itself rights. On top of that, firms are finding a PDF copy and the KSeF structured invoice side by side and asking which one counts, a mix-up that leads straight to double-booked entries and VAT errors.
What To Do About It
Confirm with your accounting office that authorisation inside KSeF has actually been granted, not just requested, since a missed step here stalls invoicing silently. Set one rule internally: the KSeF structured invoice is the binding record, any PDF is reference only, and put that rule in writing to whoever enters invoices.
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