German Phrase
Du kannst es innerhalb von 30 Tagen kostenlos zurückschicken.
Meaning
The sentence tells the listener that they are allowed to return the item at no cost within a thirty‑day period. It is a typical formulation in return‑policy statements and customer‑service communication.
When to use
Use this phrase when you explain a return policy to a customer – in emails, on a website, or in a spoken conversation about a purchase.
✦Grammar Breakdown
Dukannstesinnerhalbvon30Tagenkostenloszurückschicken
Modalverb ‘können’
‘kannst’ is the 2nd person singular present of ‘können’, used to express ability or permission.
Zeitangabe ‘innerhalb von … Tagen’
‘innerhalb von’ + numeral + time unit expresses a deadline within a period.
Adverb ‘kostenlos’
‘kostenlos’ means ‘free of charge’; it modifies the verb phrase.
Trennbares Verb ‘zurückschicken’
‘zurückschicken’ is a separable verb; in main clauses the prefix ‘zurück-’ moves to the end.
🗨In Conversation
Wie lange habe ich Zeit, das Produkt zurückzuschicken?
How long do I have to return the product?
Du kannst es innerhalb von 30 Tagen kostenlos zurückschicken.
You can return it for free within 30 days.
✕Common Mistakes
Du kannst es innerhalb von 30 Tagen kostenlos zurückschickt.
‘zurückschickt’ is the 3rd‑person singular form; with ‘du’ you need the infinitive ‘zurückschicken’ after the modal verb.
Du kannst es innerhalb von 30 Tagen kostenfrei zurückschicken.
‘kostenfrei’ is understandable but sounds less formal in a written policy; ‘kostenlos’ is the standard term.
Du kannst es innerhalb 30 Tagen kostenlos zurückschicken.
The preposition ‘von’ is required after ‘innerhalb’ when a numeral follows.
↔Alternatives
Du hast 30 Tage Zeit, es kostenlos zurückzusenden.
You have 30 days to return it free of charge.
Innerhalb von 30 Tagen kannst du es gratis zurückschicken.
Within 30 days you can send it back for free.
Du kannst es bis zu 30 Tage nach Erhalt kostenfrei zurückschicken.
You can return it cost‑free up to 30 days after receipt.
Cultural Tip
In German‑speaking e‑commerce, ‘kostenlos zurückschicken’ is a strong selling point. While ‘gratis’ is also correct, ‘kostenlos’ sounds slightly more formal and is preferred in official policy texts. Remember that the deadline starts from the day the customer receives the item, not from the purchase date.

