El impago está en el acta.

Here impago is being used as a noun, not just as part of a description.

In formal or legal Spanish, impago often means:

• non-payment
• an unpaid debt
• a failure to pay

So in this sentence, it refers to the fact of something not having been paid, or to the unpaid amount/debt itself, depending on context.

Spanish normally uses an article much more often than English does, especially with nouns that are the subject of the sentence.

So el impago is the natural way to say it here.

Compare:

• El impago está en el acta. = natural
• Impago está en el acta. = not natural in normal Spanish

Even when English might say something like Non-payment is in the record, Spanish usually wants the article: El impago...

Because estar is used for location or for saying where something appears.

Here, the sentence is saying that the non-payment is in the record/minutes, so Spanish uses estar:

• está en el acta = it is in the minutes / it appears in the record

If you used es, it would suggest identity or classification, which does not fit here.

A useful pattern is:

• Está en el documento
• Está en la lista
• Está en el informe

In Spain, acta is a formal written record. Depending on context, it can mean:

• minutes of a meeting
• an official record
• a written report
• sometimes a formal certificate or statement

So el acta is usually not just any note or paper. It sounds official, administrative, legal, or institutional.

This is a very common learner question.

Acta is indeed feminine, but feminine singular nouns that begin with a stressed a- sound often take el instead of la for pronunciation reasons.

So you say:

• el acta
• el agua
• el aula

But the noun is still feminine. You can see that in:

• las actas = plural goes back to las
• el acta firmada = the adjective is feminine: firmada, not firmado

So:

• article in singular: el
• grammatical gender: still feminine

It is grammatical and understandable, but in formal Spanish, especially with documents, native speakers might often choose a more specific verb.

Very common alternatives are:

• El impago consta en el acta.
• El impago figura en el acta.
• El impago aparece en el acta.

These can sound more natural in administrative or legal contexts because they mean something like is recorded in, appears in, or is listed in.

So está en el acta is fine, but slightly more neutral or less formal.

Because en + el does not contract in Spanish.

Only these two combinations contract:

• a + el = al
• de + el = del

So:

• en el acta = correct
• de el acta = wrong, should be del acta
• a el acta = wrong, should be al acta only if the noun really takes el as article in that structure

In this sentence, en el acta stays as two words.

It can do both, depending on context.

It may refer to:

1. the fact of not paying
2. the unpaid debt/amount itself

That is very common in formal, legal, financial, or administrative Spanish.

So without more context, el impago could mean either:

• the non-payment as an event/fact
• the unpaid sum or debt being referred to

Yes, but the original order is the most neutral:

• El impago está en el acta.

You could also say:

• En el acta está el impago.

That version is more marked and sounds like you are emphasizing where it is.

Spanish word order is more flexible than English, but the normal learning-friendly pattern here is:

• subject + verb + complement

Yes. In the plural, it behaves like a normal feminine noun:

• singular: el acta
• plural: las actas

So the special el only happens in the singular.

Examples:

• El acta está firmada.
• Las actas están firmadas.

This is another good reminder that acta is still grammatically feminine.

Yes, but it changes the meaning.

• El impago refers to a specific non-payment / the non-payment already known in context.
• Un impago means a non-payment, one among others, or introduces it for the first time.

So:

• El impago está en el acta. = the non-payment is in the record
• Un impago está en el acta. = a non-payment is in the record

In most contexts, the original sentence suggests a specific known issue, so el is more natural.