Step 1, go to www.skat.dk and press "LOG IN"
Step 2, login with your NEM ID (if you own the company you can log in with your personal NEM ID).
Step 3, this is not a real step, but is just in case you dont have your NEM ID, you can login with CVR and PASSWORD.
Step 4, This is the page you will see after logging in.
Step 5, Press "MOMS" in the top bar, on the left.
Step 6, press "INDBERET MOMS", under the MOMS section.
Step 7, the website will suggest you which MOMS report you need to do, so you select it pressing "INDBERET" to go further.
Step 8, a form will be shown to you, to be filled in.
Step 9, fill in the form if you have the informations, or just fill in the places where an * is shown.
Step 10, and last one, press "godkend".