Bærehjelpen kommer på innflyttingsdatoen.

Because Norwegian usually writes compound nouns as one word, where English often uses two or more.

• bære = to carry
• hjelp = help

So bærehjelp literally means carrying help or help with carrying.
When you add -en, it becomes bærehjelpen, meaning the carrying help / the movers / the moving help, depending on context.

This one-word pattern is very common in Norwegian:

• flyttedag = moving day
• innflyttingsdato = move-in date
• arbeidstid = working hours

The main noun is usually the last part of the compound, so hjelp is the core noun here.

The ending -en is the definite singular ending for many masculine and feminine/common-gender nouns in Bokmål.

So:

• bærehjelp = carrying help
• bærehjelpen = the carrying help

and

• innflyttingsdato = move-in date
• innflyttingsdatoen = the move-in date

Unlike English, Norwegian often puts the at the end of the noun instead of using a separate word.

So rather than saying a separate word for the, Norwegian often says:

• datoen = the date
• boken = the book
• bilen = the car

This is very normal in Norwegian. The present tense is often used for planned or expected future events.

So kommer literally means comes, but in context it can mean:

• is coming
• will come

Especially when there is a clear time expression, such as på innflyttingsdatoen, Norwegian does not need a separate future form.

Compare:

• Bærehjelpen kommer på innflyttingsdatoen. = The moving help is coming / will come on the move-in date.
• Han reiser i morgen. = He is leaving tomorrow.
• Vi møtes på fredag. = We are meeting on Friday.

You could also say skal komme in some contexts, but kommer sounds very natural here.

Here på means on, as in on the move-in date.

In Norwegian, på is commonly used with:

• days
• specific occasions
• some dates and scheduled points in time

So this matches English fairly well here:

• på mandag = on Monday
• på bursdagen min = on my birthday
• på innflyttingsdatoen = on the move-in date

A learner may expect i, because i can also refer to time, but i is more often used for broader periods:

• i dag = today
• i morgen = tomorrow
• i juli = in July
• i vinter = in winter

So in this sentence, på is the natural choice.

It is a compound noun made up of several parts:

• innflytting = moving in
• -s- = a linking sound/letter often used in compounds
• dato = date
• -en = the definite ending

So:

• innflyttingsdato = move-in date
• innflyttingsdatoen = the move-in date

That -s- in the middle is very common in Norwegian compounds, even though it is not always predictable from English. You will see similar patterns in other words too.

A good way to think about it is: innflytting + dato becomes innflyttingsdato.

Yes, but the verb still has to stay in second position in a main clause. That is a key rule in Norwegian word order.

The basic sentence is:

• Bærehjelpen kommer på innflyttingsdatoen.

If you move the time expression to the front, you get:

• På innflyttingsdatoen kommer bærehjelpen.

Notice that kommer still stays in the second position.

This is different from English, where learners may be tempted to keep the subject before the verb no matter what. In Norwegian, when another element comes first, the verb usually comes immediately after it.

It is understandable, but in real life many people might more often say something like:

• flyttehjelpen = the moving help
• flyttebyrået = the moving company
• bærehjelp = help with carrying

The nuance is roughly:

• bærehjelp focuses on the physical carrying/lifting
• flyttehjelp is broader and can mean help with the move in general

So bærehjelpen kommer på innflyttingsdatoen is grammatical and clear, but depending on context, flyttehjelpen might sound a bit more natural to some speakers.

Because the idea of the is already built into innflyttingsdatoen through the ending -en.

So Norwegian does not need a separate article here.

Compare:

• dato = date
• datoen = the date

That means:

• på innflyttingsdato = on a move-in date / on move-in date
• på innflyttingsdatoen = on the move-in date

English learners often want to insert an extra word corresponding to the, but Norwegian usually does not do that with simple definite nouns.

A helpful approximate pronunciation is:

• bærehjelpen ≈ BEH-reh-yel-pen
• innflyttingsdatoen ≈ INN-flyt-tings-dah-too-en

A few points that often help English speakers:

• æ sounds somewhat like the e in bed, but the exact sound varies by accent.
• hj in hjelp is usually pronounced with a y-like sound, so hjelp sounds roughly like yelp.
• Norwegian compounds usually keep their parts fairly clear, so it helps to mentally split them:
  • bære + hjelp + en
  • innflytting + s + dato + en

You do not need perfect pronunciation right away, but recognizing those parts makes the word much easier to read and remember.