Small rewards can be useful at 5½. I’d stop charging “rent,” use bedtime rewards for a while, and keep paid extra jobs separate from everyday helping.

Agreeing on a reward beforehand can help a child practise a new habit. Offering more money after she refuses can teach her that holding out pays. Set clear, achievable goals and give specific praise. Rewards don’t have to be cash. [CDC guidance](https://www.cdc.gov/parenting-toddlers/responding-to-behavior/using-rewards.html).

For sleeping in her own bed, a small incentive seems reasonable if she can manage what you’re asking. First, find out why she comes into yours. It might be habit, fear, nightmares, or wanting to be close to you. Nighttime fears and nightmares are common at this age, and money won’t resolve them. Reassurance and a predictable bedtime routine can help, along with helping her settle back into her bed. You can comfort her while keeping that boundary. [Children’s sleep guidance](https://raisingchildren.net.au/for-professionals/mental-health-resources/sleep-0-18-years/good-sleep/school-age-sleep).

I’d drop the “rent” charge because it could make seeking comfort feel costly, or suggest that your bed is available for a fee. If she has a difficult night, she may simply miss out on that night’s reward. Any money she’s already earned stays hers; the CDC specifically advises against taking back earned rewards.

Paying $1 to tidy her brother’s Lego seems reasonable as an occasional, optional extra job. I wouldn’t make his mess routinely her responsibility. Have him join in with your help, and give her everyday responsibilities of her own. Be specific when you thank her: “You helped make the floor safe for everyone.”

Paying for everything can turn helping into a transaction. In one experiment, toddlers who received material rewards for helping later helped less than those who received praise or no reward. That gives you a reason to use payments sparingly, though it doesn’t establish that your $1 arrangement will damage your daughter’s character. [Study](https://pubmed.ncbi.nlm.nih.gov/18999339/).

There’s no particular birthday when rewards need to stop. For bedtime, start phasing them out once the habit is reasonably consistent. Explain the change in advance and gradually space the rewards farther apart, while continuing to offer encouragement and support. Reward charts are intended for specific goals over a short period. [Reward-chart guidance](https://raisingchildren.net.au/school-age/behaviour/encouraging-good-behaviour/reward-charts).

If she starts asking for payment for every small request, or the arrangement leads to anxiety or arguments, revise it. Raising the price could reinforce the problem.