Pronajímatel prověří nesrovnalost a přepočítá nedoplatek nebo přeplatek.

Because both verbs are perfective:

• prověřit = to check/verify completely
• přepočítat = to recalculate

In Czech, the present form of a perfective verb usually refers to a future completed action. So:

• prověří = will check / will verify
• přepočítá = will recalculate

If you wanted an actual ongoing present meaning, Czech would normally use imperfective verbs instead.

They are in the accusative singular, because they are the direct objects of the verbs:

• prověří nesrovnalost
• přepočítá nedoplatek nebo přeplatek

A useful detail:

• nesrovnalost is a feminine noun in -ost, and its accusative singular looks the same as the nominative.
• nedoplatek and přeplatek are masculine inanimate nouns, and their accusative singular also looks the same as the nominative.

So the case is not obvious from the form alone, but the syntax tells you it is accusative.

Because pronajímatel is in the nominative singular and names the person doing the actions:

• prověří
• přepočítá

It means the landlord / lessor. In this sentence, that person is the one who will check the discrepancy and recalculate the amount.

Not always. Pronajímatel is the formal term for the person or entity that rents something out.

Depending on context, it can mean:

• landlord for housing
• lessor in legal or contract language
• more generally, the party renting out property

The opposite person is nájemce, meaning tenant / lessee.

Because Czech has no articles. It does not use separate words equivalent to the or a/an.

So:

• pronajímatel can mean the landlord or a landlord
• nesrovnalost can mean the discrepancy or a discrepancy

Context tells you which interpretation is intended.

Because Czech does not need to repeat the subject when it is clear.

So:

• Pronajímatel prověří nesrovnalost a přepočítá...

naturally means:

• The landlord will check the discrepancy and recalculate...

Czech often avoids repeating the same noun or pronoun if the meaning is obvious.

These are common billing and settlement terms:

• nedoplatek = an underpayment, an amount still owed
• přeplatek = an overpayment, an amount paid in excess

You often see them in utility statements, rent settlements, and invoices.

So after recalculation, the result may show either:

• money still due, or
• money paid too much

Because the recalculation will normally result in one or the other:

• either a nedoplatek
• or a přeplatek

So nebo means or in the ordinary exclusive sense here: the final balance will come out as one type of result.

No, Czech word order is fairly flexible, but this version is very natural.

The current order works well because it follows a logical sequence:

1. check the discrepancy
2. recalculate the underpayment or overpayment

So the sentence sounds orderly and procedural. Other word orders are possible, but they may shift emphasis or sound less neutral.

It is stronger than just look at.

Prověří suggests something like:

• check carefully
• verify
• examine
• review to confirm the facts

So prověřit nesrovnalost implies that the discrepancy will be actively investigated or verified, not merely noticed.

Přepočítá means recalculate or calculate again.

The prefix pře- often gives the idea of:

• doing something again
• going over it anew
• recalculating or recomputing

So přepočítá nedoplatek nebo přeplatek means the amount will be worked out again, presumably after the discrepancy has been checked.

A few useful pronunciation points:

• á, í, é are long vowels
• ě changes the pronunciation of the preceding consonant
• ř is the famous Czech sound, something like an r and zh sound together

In this sentence, the trickiest words are:

• prověří
• přepočítá
• přeplatek

If you cannot produce ř yet, a rough learner-friendly approximation is to aim for a soft rzh sound. Native pronunciation takes practice, so this is completely normal.

Because the sentence is talking about:

• one discrepancy
• one resulting balance outcome

Even if the broader situation is complex, Czech often uses singular nouns when referring to the specific item currently being processed. So the sentence presents the matter as one case being reviewed and one final amount being recalculated.