Neodobrena platna transakcija je na izvodu sa računa.

A word-by-word breakdown:

• neodobrena = unauthorized / unapproved
• platna = payment
• transakcija = transaction
• je = is
• na = on
• izvodu = statement / extract in the locative singular
• sa računa = from the account / of the account

So the structure is basically:

[unauthorized payment transaction] + [is] + [on the account statement]

Because transakcija is a feminine singular noun in the nominative case, and both adjectives must agree with it.

Agreement in Serbian usually means matching:

• gender
• number
• case

Here:

• transakcija = feminine, singular, nominative
• neodobrena = feminine, singular, nominative
• platna = feminine, singular, nominative

So all three line up grammatically.

Yes. In English, payment often works like a noun used before another noun, as in payment transaction.

In Serbian, this idea is usually expressed with an adjective:

• platni promet = payment traffic / payment operations
• platna kartica = payment card
• platna transakcija = payment transaction

So platna is the adjective form meaning something like payment-related.

Because ne- is a prefix attached directly to many adjectives in Serbian.

So:

• odobrena = approved
• neodobrena = unapproved / unauthorized

This is very common:

• moguć = possible

• nemoguć = impossible

• važan = important / valid
• nevažan = unimportant

So neodobrena is the normal written form.

In standard Serbian, jesam / biti in the present tense is usually not omitted in normal sentences like this.

So:

• Transakcija je na izvodu. = The transaction is on the statement.

Leaving out je would sound incomplete in ordinary prose.

Serbian can omit pronouns, but not usually the present-tense copula here.

Because the preposition na takes the locative case when it means on / at in a static location.

This sentence describes where something is, not motion toward somewhere.

So:

• na izvodu = on the statement → locative
• na sto would be motion onto the table → accusative
• na stolu = on the table → locative

Here the transaction is already located on the statement, so locative is required.

Računa is genitive singular of račun.

The preposition sa (or s) often takes the genitive when it means from.

So:

• sa računa = from the account

In the phrase izvod sa računa, the whole expression means statement from the account, which in natural English is usually account statement or bank statement.

No. You may also see:

• izvod računa
• izvod sa računa

Both are used. Very roughly:

• izvod računa = account statement
• izvod sa računa = statement from the account

In practice, both can refer to a bank/account statement, and the second one is very common in everyday use.

Yes. Serbian word order is more flexible than English word order.

The neutral version here is:

• Neodobrena platna transakcija je na izvodu sa računa.

But you could also say:

• Na izvodu sa računa je neodobrena platna transakcija.

This version puts more focus on where it is.

In Serbian, changing word order often changes emphasis rather than core meaning.

Serbian has no articles like English a/an/the.

So Neodobrena platna transakcija could mean:

• an unauthorized payment transaction
• the unauthorized payment transaction

The exact meaning depends on context.

For example:

• if you are introducing it for the first time, English might use an
• if both speaker and listener already know which transaction is meant, English might use the

Serbian leaves that to context.

Not always exactly. Depending on context, neodobrena can mean:

• unapproved
• not authorized
• unauthorized

In banking, you may also encounter words like:

• neovlašćena transakcija = unauthorized transaction
• neautorizovana transakcija = unauthorized / unauthorised transaction

So neodobrena works, but the exact nuance may depend on the institution or context.

It is in the nominative singular.

Why?

Because it is the grammatical subject of the sentence:

• Neodobrena platna transakcija = the unauthorized payment transaction

The predicate is:

• je na izvodu sa računa = is on the account statement

So the subject stays in the nominative.

Because Serbian often uses na for things understood as a surface or something you can visually see on.

A bank statement is treated like a document or listing, so:

• na izvodu = on the statement

Compare:

• u banci = in the bank
• u dokumentu = in the document
• na listi = on the list
• na računu can also mean on the bill / on the account, depending on context

With statements, lists, pages, screens, and similar things, na is very common.

Yes, it is a normal banking/financial expression.

It means a transaction connected with payment operations, so in English you would usually render it simply as:

• payment transaction

This is similar to how Serbian uses many formal, administrative, or banking adjective+noun combinations that sound very standard in official language.