Short answer. Yes. Whatever the thing produced while it was being kept belongs to you and goes back with it — offspring, harvest, accessories and anything attached to it. If what you left was money and the keeper used it for himself, he owes interest counted from the day he used it.
What the law says
The thing deposited shall be returned with all its products, accessories and accessions.
Civil Code, Article 1983 — Return With Products and Accessions. Read the full provision →
What the law says
The agent owes interest on the sums he has applied to his own use from the day on which he did so
Civil Code, Article 1896 — Interest on Sums Applied to Own Use. Read the full provision →
The thing goes back whole
Article 1983 states the rule in a single line: The thing deposited shall be returned with all its products, accessories and accessions. The keeper never becomes owner of anything the thing generates. Products are what it yields — a harvest, an animal's offspring. Accessories are the items that go with it: the case, the key, the spare, the registration papers. Accessions are things joined to or incorporated into it while it was away. One principle sits behind all three words. Safekeeping is not an opportunity to profit, and the owner should get back everything ownership would have brought him.
Money left for safekeeping
The second sentence of the article sends money deposits to the rules on agents, in Article 1896. That provision says The agent owes interest on the sums he has applied to his own use from the day on which he did so. So a keeper who dips into money left with him owes not merely the amount back, but interest running from the day he took it — not from the day you finally asked for it. What triggers it is using the money for himself. Merely holding it, untouched, does not turn a safekeeping into an interest-bearing arrangement.
What the rule does not give you
It does not entitle you to profit the keeper generated by his own effort and his own resources, and it does not convert safekeeping into an investment that must produce a return. It also does not settle what expenses the keeper may recover for looking after the thing, nor his liability if the thing is damaged; separate provisions handle those. And it does not govern arrangements that merely resemble safekeeping. Money placed with a bank, for instance, follows the rules of that relationship and the terms of the account, not this article.
Practical steps
Two habits prevent most of these disputes. First, list what you handed over, accessories included, and keep a copy — arguments about a missing key, charger or document are far more common than arguments about the main item. Second, where the thing produces something, such as livestock or an income-earning asset, agree at the outset who handles the yield and how it will be accounted for. If a keeper refuses to hand over products, or has used money left with him, gather the record of what was delivered and when, and seek advice promptly, as claims of this kind are subject to time limits.
Related provisions
- Civil Code, Article 1983 — Return With Products and Accessions
- Civil Code, Article 1896 — Interest on Sums Applied to Own Use