Við tölum um lánið í kvöld, því vextirnir hafa hækkað aftur.

Icelandic often uses the present tense to talk about the near future, especially when something is planned or expected.

So Við tölum um lánið í kvöld literally looks like We talk about the loan tonight, but it naturally means We’ll talk about the loan tonight.

This is very similar to English sentences like:

• I’m meeting her tomorrow
• We leave tonight

If you wanted, you could sometimes make the future meaning more explicit with other wording, but the simple present is very normal here.

The preposition um means about or around, and when it means about, it normally takes the accusative case.

So in:

• um lánið = about the loan

the noun lán appears in its accusative definite form:

• lán = loan
• lánið = the loan

For neuter nouns like lán, the nominative and accusative singular are often the same, so the form lánið does not look different here. But grammatically, after um, it is accusative.

Lánið is made from:

• lán = loan
• -ið = the definite article suffix for a neuter singular noun

So:

• lán = a loan
• lánið = the loan

In Icelandic, the definite article is usually attached to the end of the noun rather than written as a separate word like English the.

Í kvöld is a fixed time expression meaning tonight.

In many common expressions of time, Icelandic does not use the definite article, even where English might think of a specific time. So you simply say:

• í kvöld = tonight
• í morgun = this morning / in the morning
• í gær = yesterday

So í kvöld is just the normal idiomatic expression.

Here því means because.

So:

• ..., því vextirnir hafa hækkað aftur.
• ..., because the interest rates have gone up again.

This því is a conjunction connecting the two clauses.

A learner should be aware that því can also appear in other roles in Icelandic, but in this sentence its job is simply to mean because.

After því meaning because, Icelandic usually keeps the normal subordinate-clause word order:

• vextirnir hafa hækkað aftur

That is:

• subject: vextirnir
• auxiliary: hafa
• main verb form: hækkað
• adverb: aftur

This is different from main-clause inversion patterns you often see in Icelandic. Because this is a subordinate clause introduced by því, the structure stays straightforward.

In Icelandic, vextir is commonly used in the plural to mean interest or interest rates, especially in financial contexts.

So:

• vextir = interest / interest rates
• vextirnir = the interest rates

This is one of those places where Icelandic and English organize the idea differently. English often uses singular interest, but Icelandic very naturally uses plural vextir.

Vextirnir is the definite plural form of vextir.

Breakdown:

• vextir = interest rates
• -nir = the definite article ending for this masculine plural form

So:

• vextir = interest rates
• vextirnir = the interest rates

The whole word includes both the noun and the.

Hafa hækkað is the present perfect.

It is built from:

• hafa = have
• hækkað = risen / increased

So:

• vextirnir hafa hækkað = the interest rates have increased

This tense is used much like the English present perfect: it describes something that has happened and is relevant now.

Because with hafa in the perfect tense, Icelandic uses a supine form of the verb, and that form does not agree with the subject in gender or number.

So even though vextirnir is plural, the verb form stays:

• hafa hækkað

not some plural-agreeing version.

This is normal for Icelandic perfect constructions.

The main verb is hækka, which means to rise, to increase, or to go up.

Its forms here are:

• infinitive: hækka
• supine/past participle form used with hafa: hækkað

So:

• hafa hækkað = have risen / have increased

In this sentence, vextirnir hafa hækkað aftur means the interest rates have increased again.

Aftur means again.

In Icelandic, adverbs like this often come toward the end of the clause, especially after the verb complex. So:

• vextirnir hafa hækkað aftur = the interest rates have increased again

Its placement is very natural here. Icelandic does allow some flexibility in adverb placement, but this end position is common and idiomatic.

Yes, often you could use vegna þess að for because as well.

For example:

• Við tölum um lánið í kvöld, því vextirnir hafa hækkað aftur.
• Við tölum um lánið í kvöld vegna þess að vextirnir hafa hækkað aftur.

Both can mean basically the same thing.

A rough learner-friendly distinction is:

• því = a shorter, common way to say because
• vegna þess að = also because, sometimes felt as a bit fuller or more explicit

In many everyday situations, both work.

The comma separates the main clause from the explanatory because clause:

• Við tölum um lánið í kvöld,
• því vextirnir hafa hækkað aftur.

Icelandic punctuation often uses commas to mark clause boundaries more clearly than English does. So the comma here is normal and helpful.

Yes. Icelandic is a verb-second language in main clauses, so if you put Í kvöld first, the finite verb usually comes next:

• Í kvöld tölum við um lánið.

Not:

• Í kvöld við tölum um lánið.

That is a very important Icelandic pattern. In the original sentence, the subject already comes first:

• Við tölum um lánið í kvöld

So there is no inversion there. But once another element is placed first, the verb moves into second position.

Yes, both contain sounds that English speakers often need to practice.

• ð in Við is like the th in this
• þ in því is like the th in thing

So:

• Við begins with a v sound and ends with soft th
• því begins with unvoiced th

Also, Icelandic í is pronounced like ee in see, so því sounds roughly like thvee.