Sehubungan dengan fi pendaftaran, kami membayar hari ini.

Sehubungan dengan is a formal expression meaning something like in connection with, with regard to, or regarding.

It is common in:

• official letters
• business emails
• administrative writing
• announcements

It is not the most natural choice in casual conversation. In everyday Malay, people are more likely to use:

• tentang
• mengenai
• berkenaan
• or just say the sentence more directly

So this sentence sounds quite formal because of that opening.

Yes, fi pendaftaran is understandable and can be used in formal or institutional contexts.

However, many learners also see yuran pendaftaran. The difference is roughly this:

• fi = fee, often in more official or technical language
• yuran = fee/dues/charge, often very common in everyday institutional use

In many situations, both are possible. Which one sounds more natural can depend on the organization, region, and context.

Malay does not use articles the same way English does. There is no exact everyday equivalent of a or the that must appear before nouns.

So fi pendaftaran can mean:

• registration fee
• the registration fee

The exact meaning depends on context.

If you want to make it more clearly specific, Malay can add words such as:

• itu = that/the
• ini = this

For example:

• fi pendaftaran itu = that/the registration fee

This is a very important Malay distinction.

• kami = we, but not including the listener
• kita = we, including the listener

So if the speaker means we as in our side / our company / our family / our group, and does not include the person being addressed, kami is correct.

In a sentence about paying a fee, kami is usually the natural choice unless the speaker and listener are both part of the paying group.

Bayar is the root word meaning pay.
Membayar is the active verb form built from that root.

In formal standard Malay:

• membayar is the normal form for to pay / to pay something

Examples:

• Kami membayar fi itu.
• Dia membayar bil.

The shorter form bayar is very common in:

• casual speech
• commands
• headlines
• colloquial Malay

So in a sentence this formal, membayar fits better than bayar.

Malay verbs do not change form for tense the way English verbs do.

So membayar itself does not tell you whether the action is:

• present
• past
• future

Malay usually shows time through:

• time words, such as hari ini
• extra markers, such as akan, sudah, telah, sedang

In this sentence, hari ini gives the time reference: today.

But if you want to be more precise, you could say:

• kami akan membayar hari ini = we will pay today
• kami sudah membayar hari ini = we have paid today / already paid today

So yes, the original sentence is understandable, but it leaves the exact timing a bit open.

It can be understood here because fi pendaftaran has already been mentioned at the start of the sentence.

However, many speakers would feel that the sentence is slightly incomplete or awkward unless the object is repeated more clearly.

More natural versions would be:

• Sehubungan dengan fi pendaftaran, kami akan membayarnya hari ini.
• Kami akan membayar fi pendaftaran hari ini.

The ending -nya in membayarnya means it, so that makes the object explicit.

Malay often allows a topic or frame-setting phrase to come first, especially in formal writing.

So the structure here is roughly:

• As for / regarding the registration fee, ...

This fronted phrase sets the topic before giving the main statement.

That is grammatical, but it sounds more formal and administrative than a plain sentence like:

• Kami akan membayar fi pendaftaran hari ini.

So the word order is possible, but it gives the sentence a more official tone.

It is understandable, but many learners should know that it sounds a bit stiff, and the verb part feels slightly incomplete because the thing being paid is not repeated after membayar.

More natural versions would be:

• Kami akan membayar fi pendaftaran hari ini.
• Sehubungan dengan fi pendaftaran, kami akan membayarnya hari ini.
• Bayaran fi pendaftaran akan dibuat hari ini.
  This is especially natural in very formal or administrative writing.

So the original sentence is not impossible, but it is not the smoothest phrasing.

Both relate to paying, but they are used a little differently.

• membayar = to pay
• membuat bayaran = to make a payment

Membayar is usually more direct and simple:

• Kami akan membayar fi pendaftaran hari ini.

Membuat bayaran sounds more formal and administrative:

• Kami akan membuat bayaran hari ini.

In business or official communication, membuat bayaran is very common. That is why a sentence about fees and formal correspondence may sound especially natural with it.