Something unique that MyPoints offers that most other similar companies don't offer is the ability to earn cash back on some in-store purchases at select stores, along with their online paid surveys. Also, although their online store cashback rates aren't the highest in the industry (ironically, Swagbucks beats them on several offers), they do have special offers that other companies don't have, such as a bonus to sign up for Amazon Prime.
Alternatively, you might need to register with HMRC as newly self-employed, but if you're just doing a few for fun, you might not. It's worth giving them a ring on 0300 200 3500 to check if you're not sure. You need to register, so make sure you do so by the end of the third calendar month after you've started – or you could face an automatic £100 penalty.
It’s easy to earn cash for surveys. How much you get paid completely depends on how many paid surveys you attempt and complete. Each online survey has a different payout, with some offering as much as $50. Most will pay less, but also take less time. Expect to earn about 40 to 200 SB points per survey (100 SB = $1), with occasional opportunities with much higher earning potential.