Betalingstransaktionen står på kontoudtoget.

Because Danish usually writes compound nouns as one word, not as separate words.

Here, betalingstransaktionen is made up of:

• betaling = payment
• transaktion = transaction
• -en = the (definite ending)

So the whole word means the payment transaction.

This is very common in Danish. English often uses separate words where Danish prefers a compound:

• bank account → bankkonto
• credit card → kreditkort
• payment transaction → betalingstransaktion

The -en is the definite singular ending for a common-gender noun.

So:

• en betalingstransaktion = a payment transaction
• betalingstransaktionen = the payment transaction

Unlike English, Danish usually adds the to the end of the noun instead of putting it in front.

Actually, transaktionen is exactly what you get from transaktion + en.

So:

• base noun: transaktion
• definite ending: -en
• result: transaktionen

Nothing unusual is happening here; the ending is simply attached to the noun.

In the full compound, the definite ending goes on the last part of the compound:

• betalingstransaktion = payment transaction
• betalingstransaktionen = the payment transaction

That is how Danish compounds work.

Yes, literally står means stands, but in this sentence it is being used in an idiomatic way.

In Danish, stå is often used for text, information, or entries that appear, are written, or are listed somewhere.

So here står på kontoudtoget means something like:

• appears on the statement
• is listed on the statement
• is shown on the statement

This use is very natural in Danish, even though English would not normally say stands on the statement.

Because Danish often prefers stå when talking about written information or entries on a document, screen, list, receipt, or statement.

Compare the feeling:

• Det står på hjemmesiden. = It says so on the website.
• Det står i brevet. = It is written in the letter.
• Transaktionen står på kontoudtoget. = The transaction is listed on the statement.

Using er would sound less idiomatic here. It is not impossible in every context, but står is the natural choice when the idea is that something is shown/listed in writing.

Kontoudtoget is another compound noun.

It contains:

• konto = account
• udtog = extract / statement
• -et = the (definite ending for a neuter noun)

So:

• et kontoudtog = an account statement / bank statement
• kontoudtoget = the account statement / the bank statement

A natural English translation is usually the bank statement or the account statement, depending on context.

Danish often uses på with surfaces, documents, screens, lists, receipts, and statements when something is shown on them.

So you commonly get:

• på hjemmesiden = on the website
• på listen = on the list
• på regningen = on the bill
• på kontoudtoget = on the statement

English and Danish do not always match exactly with prepositions, so this is something you often just learn as a pattern.

The sentence has very normal Danish main-clause word order:

• Betalingstransaktionen = subject
• står = verb
• på kontoudtoget = prepositional phrase

So the structure is:

Subject + Verb + Place/Location

This is the standard pattern in a simple statement.

Yes. Danish is a V2 language, which means the finite verb normally comes in the second position in main clauses.

In this sentence, the first element is the subject:

• Betalingstransaktionen | står | på kontoudtoget

If you move another element to the front, the verb still stays second:

• På kontoudtoget står betalingstransaktionen.

That version is more marked or stylistic, but it shows the same rule: the finite verb står remains in second position.

The two main nouns here have different genders:

• en transaktion → common gender
• et udtog → neuter

That is why their definite endings are different:

• transaktionen = the transaction
• udtoget = the extract/statement

In compounds, the gender is determined by the last part of the compound:

• betalingstransaktion takes the gender of transaktion → en
• kontoudtog takes the gender of udtog → et

You would remove the definite endings:

• En betalingstransaktion står på et kontoudtog.

But that sounds much more general, like a payment transaction appears on a bank statement.

If you want to keep the sentence natural in a real context, the definite version is often better:

• Betalingstransaktionen står på kontoudtoget.

That sounds like you are talking about a specific transaction on a specific statement.

A few useful forms are:

For betalingstransaktion:

• singular indefinite: en betalingstransaktion
• singular definite: betalingstransaktionen
• plural indefinite: betalingstransaktioner
• plural definite: betalingstransaktionerne

For kontoudtog:

• singular indefinite: et kontoudtog
• singular definite: kontoudtoget
• plural indefinite: kontoudtog
• plural definite: kontoudtogene

So The payment transactions are listed on the statement would be:

• Betalingstransaktionerne står på kontoudtoget.

It is pronounced roughly like stohr, but with a distinctly Danish vowel quality.

A few points:

• å sounds somewhat like the vowel in English more or saw, depending on accent
• the r is Danish, not a strong English r
• the word is one syllable

So an English-friendly approximation is stohr, but the real Danish sound is a bit different.

People would probably understand you, but it sounds less natural than står på kontoudtoget.

When Danish talks about information being written, displayed, or listed, stå is often the preferred verb. So if you want to sound idiomatic, står is the better choice here.

A good rule of thumb is:

• for physical or listed information on a document/screen: often stå
• for simple existence or identity: often være

So in this sentence, står is the natural Danish wording.