A side income lives or dies on two numbers: how many hours a week you actually have, and what an hour of it earns. So every idea here states both — instead of promising passive income.
We picked models you can run on evenings and weekends, stop at any time, and that don't ask you to quit before you've seen the first money.
149 ideas in this theme

The manufacturer no longer supplies the part an older washing machine needs. This business pulls it from scrapped ones, legally.

People want a natural pick-me-up and immunity. You press fresh ginger shots — but the trap is not the recipe, it is short shelf life and spoilage.

Men do not want multi-step rituals, they want a problem solved. You create a skincare brand for men's skin — simple, functional and without embarrassment.

People want natural body care without needless chemistry. You make body butters from shea butter under your own brand and sell them online.

People do not want just jewellery, they want a moment. At a pop-up stand you weld a clasp-free chain straight onto the wrist as a lasting keepsake.

People want an original piece, not a high-street uniform. You hand-dye shirts in limited runs and sell them under your own brand online and at markets.

People want a personal gift, not more costume jewellery. You make them a name necklace in gold-plated metal to order and sell it through your own shop.

You design a planner or printable document once and sell the same file again and again on Etsy, with no stock and no shipping.

A beginner wants to try a new hobby but does not want to source materials piece by piece. They get a complete kit with tools and instructions, ready to create.

Production of chilli jams in various heat levels — a sweet-spicy treat for cheese, meat and grilling, sold in gift sets and to delicatessens.

Production of freeze-dried cheese — a crunchy durable snack from quality cheese without refrigeration, high in protein for fitness and as a treat with wine.

Production of reusable beeswax food wraps — an eco alternative to cling film from fabric coated with beeswax, with design and gift sets.

Printing photos and motifs on canvas to order via print-on-demand — no stock, with a focus on personalised niche motifs and higher value.

Production of flavoured honeys and honey treats with fruit and spices — gift sets with a local story for an e-shop, markets and the gift segment.

Production of herbal bath teas for the tub — dried herbs, flowers and salts in a sachet for relaxation, skin care and a home ritual.

Building a content brand about minimalism across a blog, Instagram and video — monetised through affiliate, own digital products and partnerships.

Curated brand of herbal tea blends from organic herbs for sleep, digestion and relaxation — functional teas in eco packaging and gift sets.

Production of natural shampoos, conditioners and hair oils from eco formulation without sulfates and silicones — hair care for a specific concern.

Designer notebook with budget templates, perforated pages and motivational quotes — paper budget for UK people who do not trust apps.

Home production of plant-based jerky from oyster mushroom, soy and jackfruit — vegan snack for UK fitness studios, offices and zero-waste shops.

Specialist e-shop with organic fertilisers, native plants and curated setups for wildflower meadows, insect hotels or permaculture gardens.

Hive installation in the client's garden and monthly care through the season — inspections, varroa treatment and honey extraction for owners who do not beekeep.

Mobile rental of beer dispensing setups (taps with cooling) for garden parties, birthdays and corporate events on a daily basis.

Cold-process soaps from natural ingredients for conscious consumers — sales through own e-shop, Etsy and Sashe handmade marketplace.
And 719+ more ideas waiting inside
Unlock the full databaseYes. Watch for a non-compete clause in your contract, and note that working in your employer's own field usually needs their consent. Otherwise a side income is your business.
For hourly services the median rate in the catalogue sits around €26 an hour; for per-unit making, the implied hourly most often lands between €12 and €20. Each idea carries its own figures.
Small occasional income has allowances in most countries, but once the activity is systematic, registration belongs to it. Thresholds differ by country — we flag the local rules where they matter.