The UK's Best Side Hustles & Referral Offers

MoneySuperMarket runs a periodic refer-a-friend bonus paying both parties an e-voucher when the new customer buys an eligible product (usually insurance or energy).

MSR (My Sales Rep / Shop Reward) is a UK app paying commission on friends' spending at partner retailers, with a percentage cut on their qualifying purchases.

Three UK runs a periodic Recommend a Friend voucher for both parties when a new customer takes out an eligible Three plan.

iD Mobile is Currys' UK MVNO on Three's network, running periodic refer-a-friend bill-credit for both parties when the new customer's line activates.

Lebara Mobile is a UK MVNO focused on international calling, with a refer-a-friend credit for both parties when a new customer activates their SIM.

Sprive is a UK app that helps homeowners overpay their mortgage automatically and compare remortgage deals, with a refer-a-friend cash bonus for both parties.

Tembo is a UK FCA-regulated mortgage and savings platform (Lifetime ISA, Cash ISA and mortgage advice) with a refer-a-friend reward for qualifying customers.

Fuse is a UK app-based savings and rewards product with a refer-a-friend cash bonus for both parties once the invitee funds their account.

Macadam is a UK app-based rewards platform paying coins/points that can be redeemed for gift cards or cash, with a refer-a-friend bonus for both parties.

Raise is a discounted-gift-card marketplace that runs a refer-a-friend voucher when the new user buys their first discounted gift card.

Avios is the British Airways / Iberia points programme with a periodic refer-a-friend points bonus for both parties when the new member earns their first qualifying Avios.

Everup is a UK saving-and-play app where deposits earn interest and prize-draw entries, with a refer-a-friend cash bonus for both parties on the invitee's first deposit.

Switch your main account to Nationwide and pocket £200 within 10 working days.

Virgin Money periodically runs cash or gift-based switching incentives for new current-account customers via the Current Account Switch Service (CASS).

Barclays occasionally runs cash switching incentives for eligible new current-account customers who move via CASS with qualifying direct debits and deposits.

Nutmeg is a UK digital wealth manager offering ISAs, JISAs, pensions and general investment accounts. Refer-a-friend rewards are run periodically.

AJ Bell offers Stocks & Shares ISAs, SIPPs and general investment accounts with UK share dealing and a wide fund selection.

Interactive Investor is a UK flat-fee investment platform for ISAs, SIPPs and trading accounts. Cashback and welcome offers are run periodically.

Hargreaves Lansdown is one of the UK's largest investment platforms, offering ISAs, SIPPs, fund and share dealing.

Kroo is a UK app-based current account with interest on balances and a referral programme for existing customers.