Im szybciej wypełnię formularz, tym szybciej dostanę potwierdzenie.

It is the Polish way to express the idea the ..., the ..., as in The faster ..., the faster ....

So:

im szybciej ..., tym szybciej ...
= the faster ..., the faster ...

This structure is very common in Polish with comparatives:

Im więcej czytam, tym więcej rozumiem.
= The more I read, the more I understand.

Because each half of the sentence has its own comparison.

• im szybciej wypełnię formularz = the faster I fill out the form
• tym szybciej dostanę potwierdzenie = the faster I get the confirmation

In this structure, Polish usually repeats the comparative in both parts. The two comparatives do not have to be the same, though:

Im dokładniej wypełnię formularz, tym szybciej dostanę potwierdzenie.
= The more accurately I fill out the form, the faster I will get confirmation.

Yes. Wypełnię means I will fill out / I will complete.

It comes from the perfective verb wypełnić. In Polish, perfective verbs do not normally have a true present meaning. Their present-looking forms refer to the future.

So:

• wypełniam = I am filling out / I fill out → imperfective
• wypełnię = I will fill out / I will complete → perfective

The same thing happens with dostanę from dostać:

• dostaję = I am getting / I get
• dostanę = I will get

Because the sentence focuses on completion, not just on the process.

Wypełnię formularz means that I will finish filling out the form. That makes sense here, because only after the form is completed can I get the confirmation.

If you said będę wypełniać formularz, that would mean I will be filling out the form, which emphasizes the activity itself, not the result. In this sentence, the result is what matters.

It is in the accusative singular, because it is the direct object of wypełnię.

The dictionary form is formularz and the accusative is also formularz, so nothing changes on the surface.

That is normal for many masculine inanimate nouns in Polish:

• nominative: formularz
• accusative: formularz

It is also in the accusative singular, because it is the direct object of dostanę.

Again, the form looks the same as the nominative:

• nominative: potwierdzenie
• accusative: potwierdzenie

This is normal for many neuter nouns in Polish.

Because Polish usually leaves subject pronouns out when they are already clear from the verb ending.

Both verbs here show first person singular:

• wypełnię = I will fill out
• dostanę = I will get

So ja is not needed. You could add it for emphasis, but normally you would not:

Im szybciej ja wypełnię formularz, tym szybciej dostanę potwierdzenie.

This sounds marked or emphatic, not neutral.

Szybciej is the comparative form meaning faster / more quickly.

It is related to:

• szybki = fast or quick
• szybko = quickly
• szybciej = faster / more quickly

In this sentence, szybciej functions adverbially, because it describes how quickly the actions happen.

Yes, normally yes.

The sentence has two linked clauses:

• Im szybciej wypełnię formularz
• tym szybciej dostanę potwierdzenie

In standard Polish writing, they are separated by a comma.

To some extent, yes, but the given order is the most neutral and natural.

Im szybciej wypełnię formularz, tym szybciej dostanę potwierdzenie.

That is the standard version.

Because Polish has relatively flexible word order, you may sometimes see variations for emphasis, but not every rearrangement sounds equally natural. For a learner, it is best to keep this pattern as it is:

im + comparative + clause, tym + comparative + clause

Yes. Both are correct.

• dostanę potwierdzenie = more everyday, conversational
• otrzymam potwierdzenie = more formal

So in formal writing, especially in office or business contexts, otrzymam may sound a bit more official. In normal speech, dostanę is very common.

As written, it most naturally refers to one future situation involving I:

The faster I fill out the form, the faster I will get confirmation.

But the same structure can also express a more general rule if the context supports it. For example:

Im szybciej wypełniasz formularz, tym szybciej dostajesz potwierdzenie.

That would suggest a repeated or general situation: The faster you fill out the form, the faster you get confirmation.

So the construction itself can do both; the verb forms and context tell you which meaning is intended.

In normal standard Polish, yes. They work together as a pair in this construction.

So you say:

Im szybciej ..., tym szybciej ...

Using only one of them would sound incomplete or ungrammatical in this kind of sentence.

It is best to learn the whole pattern as one unit.