1099-NEC would be for services, and that's when it is between a business and a service provider.

But there are household employee rules, which are W2 and not 1099-NEC, as well, if this is personal care.

If the person renting a single family home gets a discount on rent in exchange for maintaining the property, that's not going to rise to the level of a business activity. If the person renting in a complex gets the same deal, that's starting to be property management.

Facts and circumstances matter.