Ingressaré a condició que la comissió bancària sigui petita.

Ingressaré is the 1st person singular future of ingressar.

In this kind of financial context, ingressar usually means:

• to deposit
• to pay in
• to transfer into an account
  depending on context

So Ingressaré means I will deposit / I will pay in.

A quick breakdown:

• ingressar = to deposit / to pay in
• ingressaré = I will deposit

Catalan usually drops subject pronouns unless they are needed for emphasis, contrast, or clarity.

The ending -é in ingressaré already tells you the subject is I.

So:

• Ingressaré = I will deposit
• Jo ingressaré = I will deposit (more emphatic, contrastive, or explicit)

Using no pronoun is the most normal option in neutral sentences.

A condició que is a fixed expression meaning:

• provided that
• on condition that
• as long as

It introduces a condition that must be met.

So:

• Ingressaré a condició que...
  = I will deposit provided that...

This phrase is a bit more formal or precise than a simple si (if).

Because a condició que requires the subjunctive.

So after a condició que, Catalan uses a subjunctive form, not the indicative.

Compare:

• La comissió és petita = The fee is small.
  (statement of fact, indicative)

But in your sentence, the small fee is only a condition, not a stated fact yet. That is why Catalan says:

• a condició que la comissió bancària sigui petita

Here sigui is the present subjunctive of ser.

This is very common in Catalan.

After expressions like a condició que, Catalan uses the present subjunctive even when the condition refers to the future.

So:

• Ingressaré ... a condició que ... sigui petita literally uses a present subjunctive form, but the meaning is still future: I will deposit ... provided that the fee is small

English often handles future meaning differently, so this can feel unusual at first.

Sigui is the present subjunctive, 3rd person singular, of ser (to be).

In this sentence it agrees with la comissió bancària, which is singular:

• la comissió ... sigui petita

Useful present subjunctive forms of ser:

• jo sigui
• tu siguis
• ell/ella/vostè sigui
• nosaltres siguem
• vosaltres sigueu
• ells/elles/vostès siguin

Because comissió is a feminine singular noun.

So the words that describe it must agree with it:

• la comissió → feminine singular
• bancària → feminine singular
• petita → feminine singular

Agreement pattern:

• bancari / bancària
• petit / petita

So:

• la comissió bancària sigui petita

If the noun were masculine, the adjectives would change accordingly.

Yes. Comissió bancària is a normal and natural way to say:

• bank fee
• bank charge
• bank commission

Be careful with comissió: it does not always mean an English commission in the same sense as a sales commission. In banking, it often means a fee or charge.

So in this sentence, la comissió bancària is the fee the bank charges.

Sometimes, but the meaning is not exactly the same.

• si = if
• a condició que = provided that / on condition that

A condició que sounds stronger and more specific: it emphasizes that this is a requirement.

Compare:

• Ingressaré si la comissió bancària és petita.
  = I’ll deposit if the fee is small.

• Ingressaré a condició que la comissió bancària sigui petita.
  = I’ll deposit provided that the fee is small.

The second one sounds more formal and more like a stated condition.

Because a condició que is an idiomatic fixed expression.

You should learn it as a chunk:

• a condició que = provided that

Catalan also has related expressions such as:

• amb la condició que = on the condition that

But in your sentence, a condició que is perfectly correct and natural.

Yes, it is very natural.

The structure is:

• Ingressaré = main verb
• a condició que = conditional linker
• la comissió bancària sigui petita = subordinate clause

So the sentence follows a normal pattern:

main clause + conditional expression + subordinate clause

Catalan word order is often fairly flexible, but this version is standard and clear.

Yes, ingressar can have different meanings depending on context.

Common meanings include:

• to deposit / pay in money
• to be admitted to a hospital or institution
• to enter an organization or group

But with la comissió bancària in the sentence, the financial meaning is the natural one.

So here, a learner should understand ingressaré as something like:

• I will deposit
• I will pay in

not I will enter.

Yes. This sentence is correct, but slightly formal because of a condició que.

A more everyday version might use si:

• Ingressaré si la comissió bancària és petita.

Depending on the situation, you might also hear other wording around banking, but your original sentence is grammatical and clear.

So the difference is mainly tone:

• a condició que → more formal, more explicit condition
• si → more everyday, simpler