Штраф за просрочку зависит от просрочки.

Because the two instances play different grammatical roles:

• за просрочку = for late payment / for a delay
• от просрочки = on the delay / depending on the delay

So the repetition is not a mistake. Russian often repeats the same noun when different prepositions require different case forms.

That said, stylistically it can sound a bit repetitive. In more formal or polished Russian, people might rephrase it, for example by using a more specific noun such as срок or размер if the context allows.

Because the preposition за here means for in the sense of a penalty or payment for something, and in this use it normally takes the accusative case.

просрочка is a feminine noun, so:

• nominative: просрочка
• accusative: просрочку

That is why you get:

• штраф за просрочку = a penalty/fine for lateness

Because от requires the genitive case.

The verb зависеть is used with от + genitive:

• зависеть от чего? = to depend on what?

So:

• nominative: просрочка
• genitive: просрочки

Hence:

• зависит от просрочки

This is a very common Russian pattern, and it is worth memorizing as a chunk:

• зависеть от + genitive

Штраф is in the nominative singular because it is the subject of the sentence.

The verb зависит is also singular, because its subject is singular:

• штраф зависит = the penalty depends

A useful way to spot this is to ask: What depends?
Answer: штраф.

Everything else in the sentence is part of prepositional phrases:

• за просрочку
• от просрочки

They express two different relationships:

• за = for, showing the reason/cause for the penalty

  • штраф за просрочку = a penalty for being late / for overdue payment

• от = on / from, used after зависеть to show what something depends on

  • зависит от просрочки = depends on the lateness / on the delay

So even though English may use for and on or other wording depending on context, Russian uses these specific prepositions because of the grammar:

• штраф за X
• зависеть от X

It is grammatically correct, but it can sound a bit repetitive because просрочка appears twice.

In real-life formal Russian, people often make it more specific, for example:

• Размер штрафа за просрочку зависит от срока просрочки.
• Штраф за просрочку зависит от длительности просрочки.

These versions make it clearer what aspect of the delay matters: its length, duration, etc.

So the original sentence is understandable, but in natural usage a native speaker may prefer a more precise version if the context requires it.

Просрочка is a feminine noun. It usually refers to a delay, lateness, or something being overdue, especially in financial or administrative contexts.

It comes from the verb просрочить, which means something like:

• to let something become overdue
• to miss a deadline
• to be late with payment

Common examples:

• просрочка платежа = overdue payment / payment delay
• просрочка по кредиту = loan delinquency / overdue loan payment

So in this sentence, просрочка is being used in a financial/legal sense.

Because Russian has no articles.

English distinguishes between:

• a penalty
• the penalty

Russian usually leaves that information to context, word order, or extra words if needed.

So штраф can mean:

• a penalty
• the penalty

depending on the situation.

The same is true for просрочка.

Yes. Russian word order is more flexible than English word order because the case endings show the grammatical relationships.

The neutral order here is:

• Штраф за просрочку зависит от просрочки.

But other orders are possible for emphasis, for example:

• От просрочки зависит штраф за просрочку.

This shifts the focus more toward what the penalty depends on.

Even so, the original version is the most straightforward and neutral way to say it.

The main stresses are:

• штраф
• за просрОчку
• зависИт
• от просрОчки

So roughly:

• Штраф за просрОчку зависИт от просрОчки.

For an English speaker, the important thing is that the stress in просрочка stays on -ро-:

• просрОчка
• просрОчку
• просрОчки

And in зависит, the stress is on the last syllable:

• зависИт

A few very useful chunks:

• штраф за + accusative

  • штраф за просрочку
  • штраф за нарушение
  • штраф за парковку

• зависеть от + genitive

  • зависеть от цены
  • зависеть от времени
  • зависеть от ситуации

Also remember the noun pattern:

• просрочка → nominative
• просрочку → accusative
• просрочки → genitive

If you learn those patterns, this sentence becomes much easier to understand and build on.