Declaration Triangular goods trade

Which party are you in the ABC contract?:
The amount you fill in under section 3b of the sales tax declaration concerns:
Do you indicate on your invoice that you use the simplified ABC declaration?:
The amount you fill in in asection 4b of the sales tax declaration concerns:
You are using an unsupported browser. Please upgrade your browser. You provided an inconsistent user agent while solving the challenge. You may have browser extensions or settings enabled to spoof the user agent and should disable them to proceed. Some portion of Turnstile was accidentally cached. Please clear your cache. The time on the clock is incorrect. Please set your clock to the correct time. An unspecified error occurred.

We use the entered data to stay in touch with you.