Správní poplatek zaplatíme na ohlašovně.

Because zaplatit is a perfective verb. In Czech, perfective verbs do not normally express a true present action. Their present-tense forms are usually used with future meaning.

So:

• platíme = we are paying / we pay (imperfective, present)
• zaplatíme = we will pay (perfective, future)

In this sentence, zaplatíme means that the payment will be completed.

Zaplatíme is:

• 1st person plural
• from the verb zaplatit
• perfective
• formally a present-tense form, but used with future meaning

So it means we will pay.

Related forms:

• zaplatím = I will pay
• zaplatíš = you will pay
• zaplatí = he/she/it will pay
• zaplatíme = we will pay
• zaplatíte = you will pay
• zaplatí = they will pay

It is in the accusative singular, because it is the direct object of zaplatíme — it is the thing being paid.

• správní = adjective
• poplatek = fee

The noun poplatek is masculine inanimate, and in the singular, masculine inanimate nouns often have the same form in nominative and accusative.

So:

• nominative: správní poplatek
• accusative: správní poplatek

That is why the form does not change here.

Here správní means administrative, official, or related to public administration.

It comes from správa, which means something like administration or management.

So správní poplatek is an administrative fee or official fee — a fee paid to an office or authority.

This is mostly a matter of Czech usage and collocation. With some places and institutions, Czech idiomatically uses na, even where English might use in or at.

So:

• na ohlašovně = at the registry/reporting office

This is similar to other common expressions such as:

• na poště = at the post office
• na policii = at the police station / with the police
• na úřadě = at the office / government office

A learner often wants a strict rule for na vs v, but in many cases you simply have to learn which preposition is normally used with each place.

It is locative singular.

The preposition na can take different cases depending on meaning:

• na + accusative for movement toward a place
• na + locative for being at a place

Here the meaning is location, not motion, so we use the locative:

• na ohlašovně = at the registry office

The dictionary form is ohlašovna, and its locative singular is ohlašovně.

Ohlašovna is a feminine noun ending in -a. Many feminine nouns of this type form the locative singular with -ě.

So:

• nominative: ohlašovna
• locative: ohlašovně

This kind of change is common:

• kuchyně is different, but compare forms like:
• škola → ve škole
• kancelář behaves differently, so not all feminine nouns follow the same pattern

With ohlašovna, you should simply learn:

• na ohlašovně

Ohlašovna is an official office where certain registrations or notifications are handled. In practice, it is often connected with residence registration or related municipal administration.

Depending on context, English translations can vary, for example:

• registry office
• registration office
• reporting office

The exact English term depends on the administrative situation, but for Czech learning, the important part is that it is an office/institution, and the phrase used is na ohlašovně.

Yes. Czech word order is fairly flexible, and the sentence can be rearranged depending on focus or emphasis.

The neutral sentence is:

• Správní poplatek zaplatíme na ohlašovně.

But you could also hear:

• Na ohlašovně zaplatíme správní poplatek.
• Zaplatíme správní poplatek na ohlašovně.

These versions are all grammatical, but they may sound slightly different in emphasis:

• starting with Správní poplatek highlights the fee
• starting with Na ohlašovně highlights the place
• starting with Zaplatíme highlights the action

Because Czech has two main ways to express future, depending on aspect:

1. Imperfective verb: use být

   • infinitive
   • budeme platit = we will be paying / we will pay

2. Perfective verb: use the simple present form with future meaning

   • zaplatíme = we will pay

The difference is often about aspect:

• budeme platit focuses more on the process or ongoing action
• zaplatíme focuses more on the completed result

In this sentence, paying the fee is understood as a single completed action, so zaplatíme is the natural choice.

Yes, though they can overlap.

• zaplatíme is the common everyday verb for pay
• uhradíme is a bit more formal and can sound more official, like settle or cover a payment

In office or legal contexts, both may appear, but zaplatíme is very normal and natural here.

A rough pronunciation guide for an English speaker is:

• Správní ≈ SPRAAV-nyee
• poplatek ≈ POH-plah-tek
• zaplatíme ≈ ZAH-plah-tee-meh
• na ≈ nah
• ohlašovně ≈ OH-hlah-shov-nyeh

A few helpful points:

• á is a long vowel
• í is a long ee sound
• š sounds like sh
• ě often makes the preceding consonant sound softer, and here the end -vně sounds roughly like v-nye

Yes, depending on context, na ohlašovně can refer either to:

• the office as an institution
• the physical place where the matter is handled, almost like at the registration desk/office

Czech often uses this kind of phrase without sharply distinguishing between the institution and the location. The context usually makes it clear.