A prestação é alta.

Because prestação is a feminine singular noun, so it normally takes the feminine singular article a.

In a sentence like A prestação é alta, the article is the normal choice in Portuguese. It often works where English might use the, or where English might use no article at all depending on context.

So here:

• a = feminine singular definite article
• prestação = feminine singular noun

You can tell in two ways here:

• from the article: a
• from the adjective: alta

Both show that prestação is feminine.

Also, many nouns ending in -ção are feminine in Portuguese, for example:

• a prestação
• a situação
• a informação
• a estação

So -ção is a very useful pattern to recognize.

Because adjectives in Portuguese usually agree with the noun they describe.

Since prestação is:

• feminine
• singular

the adjective must also be:

• feminine
• singular

So:

• alto = masculine singular
• alta = feminine singular
• altos = masculine plural
• altas = feminine plural

That is why alta is the correct form here.

Portuguese usually uses ser for this kind of statement: describing something’s general level, value, or characteristic.

So:

• A prestação é alta = the normal, neutral way to say it

With things like prices, fees, salaries, rents, and installments, ser is very common:

• O preço é alto
• A renda é alta
• A mensalidade é alta

Estar can sometimes appear if you want to stress a temporary state or a change, but it is not the most neutral choice here.

Because in Portuguese, adjectives often come after the noun by default.

So:

• prestação alta is the normal order

Putting the adjective before the noun is sometimes possible in Portuguese, but it often changes the tone, emphasis, or style. In this sentence, alta after the noun is the most natural and expected position.

No. Here alta means high in the sense of amount, level, or cost.

Portuguese alto/alta can mean different things depending on context:

• for a person: alto can mean tall
• for a number, price, fee, or payment: alto/alta means high

So in this sentence, it refers to the amount being high, not physical height.

Yes. Prestação can have several meanings depending on context, which is something learners often notice.

In European Portuguese, common meanings include:

• an installment or payment in a series
• a benefit/payment of some kind
• a service or provision
• a performance or act of carrying something out

So the exact meaning depends a lot on the situation. In everyday financial contexts in Portugal, prestação very often refers to an installment, especially for a loan, mortgage, or purchase.

In normal standard Portuguese, no — that sounds incomplete or unnatural in an ordinary sentence.

You would normally say:

• A prestação é alta

Leaving out the article might happen in:

• headlines
• notes
• very reduced written style

But in normal speech and standard sentence structure, the article is expected.

In European Portuguese, prestação is pronounced approximately like:

presh-tuh-SÃO

A few useful points:

• the ç sounds like s
• the stress falls on the last syllable: -ção
• ão is a nasal sound, very common in Portuguese

That final -ão does not sound like English ow. It is nasal, so it takes practice.

The accent in é is important because it distinguishes it from e.

• é = is
• e = and

So in this sentence:

• é is the 3rd person singular of ser

The accent is not optional here; it is part of the correct spelling.

You would make the noun, article, verb, and adjective agree in the plural:

• As prestações são altas.

Breakdown:

• a → as
• prestação → prestações
• é → são
• alta → altas

This is a good example of how agreement works across the whole sentence in Portuguese.