Die bonus en kommissie is op die betaalstaat.

Because Afrikaans does not change the present-tense form of wees (to be) the way English does.

In English, you say:

• the bonus and commission are

But in Afrikaans, you use is with:

• ek is = I am
• jy is = you are
• hy/sy/dit is = he/she/it is
• ons is = we are
• julle is = you are
• hulle is = they are

So Die bonus en kommissie is ... is completely normal Afrikaans.

Die means the.

Afrikaans uses die as the definite article for:

• singular nouns
• plural nouns
• all genders

So unlike languages that have different words for masculine, feminine, neuter, or plural, Afrikaans just uses die.

In this sentence:

• die bonus = the bonus
• die betaalstaat = the payroll / pay statement / payslip depending on context

Afrikaans often lets one article cover two nouns joined by en (and).

So:

• die bonus en kommissie

can mean:

• the bonus and commission

A second die is possible:

• die bonus en die kommissie

That version can sound a bit more separate or emphatic, but both are possible depending on style and context.

Yes. This is standard Afrikaans main-clause word order:

• Die bonus en kommissie = subject
• is = finite verb
• op die betaalstaat = prepositional phrase

So the pattern is:

• Subject + verb + rest

That is very normal in a simple statement.

Yes, op usually means on, but here it is being used in a practical/accounting sense.

So op die betaalstaat means something like:

• on the payroll
• on the pay statement
• listed on the payslip

It does not mean physically sitting on top of a piece of paper. It means the bonus and commission are included or shown there.

Betaalstaat is a compound noun:

• betaal = pay
• staat = statement, list, sheet

Depending on context, betaalstaat can refer to things like:

• a payroll
• a pay sheet
• a pay statement

In some contexts, English payslip may be translated more specifically as betaalstrokie or salarisstrokie. So the exact English word can vary a little depending on what document or system is meant.

They are singular nouns, but they are joined by en (and), so together they refer to two items.

Individually:

• bonus = bonus
• kommissie = commission

Together:

• bonus en kommissie = bonus and commission

So even though the nouns themselves are singular in form, the phrase refers to both items as a pair.

Yes, they are very familiar international-style words.

• bonus looks almost the same as English bonus
• kommissie is related to English commission

This is common in Afrikaans. Many business, administrative, and financial terms are similar to English or other European languages, although the spelling may be slightly different.

For example:

• English commission
• Afrikaans kommissie

The k spelling is very common in Afrikaans where English often uses c.

Afrikaans does not use grammatical gender the way languages like German or Dutch do.

That is why die is so useful and simple: it works for all nouns as the definite article.

So you do not have to learn different forms of the for masculine, feminine, or neuter nouns. In that sense, Afrikaans is simpler than many other European languages.

A rough English-friendly guide would be:

• Die ≈ dee
• bonus ≈ BOH-nus
• en ≈ en
• kommissie ≈ ko-MISS-ee
• is ≈ iss
• op ≈ op
• die ≈ dee
• betaalstaat ≈ buh-TAHL-staht

A rough full version:

• dee BOH-nus en ko-MISS-ee iss op dee buh-TAHL-staht

The exact pronunciation depends on accent, but that should help a beginner get close.

Yes. That is also possible.

Compare:

• Die bonus en kommissie is op die betaalstaat.
• Die bonus en die kommissie is op die betaalstaat.

The first is a little more compact and treats the two nouns as one linked set.
The second can sound slightly more explicit, as if you are naming both items separately.

Both are understandable and natural, depending on context.