Why micro-SaaS is having a moment
Three forces converged in 2025: AI coding assistants make solo developers 3–5× faster, hosting and infrastructure costs collapsed, and distribution channels (Product Hunt, Twitter/X, indie newsletters) actually work for small launches. UK founders are shipping niche tools, hitting £1,000 MRR in months not years, and many never need to raise a penny.
Days 1–14: pick a problem you live with
The best micro-SaaS ideas are tools you wish existed for your own work. Make a list of every annoying recurring task you handle. Filter for: solvable in software, has at least 1,000 people who would pay £10–£50/month, no dominant incumbent. Skip "Uber for X" — focus on B2B niches where customers actually open their wallets.
Days 15–30: validate before you build
Make a one-page landing site explaining what you will build. Run £50 of LinkedIn or Reddit ads to it. If 30+ people sign up for a waiting list, build it. If under 10 do, change the idea. Cheap validation saves months of wasted code.
Days 31–60: ship the ugly first version
Build with what you know. Next.js + Supabase + Stripe is the boring-but-works stack. Use Cursor or Claude Code as your pair programmer — UK indie founders are shipping in weeks what took months in 2023. Ugly is fine. Slow is not.
Days 61–75: charge from day one
Free trials are fine; free forever is not. Pricing teaches you whether you have built something valuable. Start at £15–£50/month. Your first 10 customers will be friends, mailing list and Twitter. Every one of them is a goldmine of feedback.
Days 76–90: distribution > product
By now your product works. The bottleneck shifts to distribution. Pick ONE channel — content (SEO/blog), community (a niche Slack or Discord), partnerships, or paid acquisition. Go all-in for 90 days. Multi-channel kills small teams; single-channel mastery wins.
What success looks like
£1,000 MRR by month 6, £5,000 MRR by month 12 is a reasonable trajectory for a focused UK micro-SaaS. From there, either grow to £10–30k MRR as a one-person company or layer in a second product. The lifestyle this enables is dramatically underrated.
Key Takeaway
A profitable micro-SaaS in the UK in 2026 is achievable in 90 days with focus. Pick a niche you understand, validate cheaply, ship ugly, charge early, distribute relentlessly. The infrastructure has never been more solo-friendly.