Marrow HillUK side-hustle tax guides and tools
Free, no sign-upBased on GOV.UK guidance2026-27 tax yearNo cookies or tracking

About Marrow Hill

Hi, I'm the maker behind Marrow Hill. It's a small UK home-workshop business: me, a 3D printer, a soldering iron and a laptop. I fly FPV drones, and I got tired of the little annoyances that come with the hobby, so I started designing and making fixes for them.

What I make

3D printed and handmade FPV drone bits, like a goggle battery case that actually fits and a BetaFPV USB cable you can't lose, on Etsy. I also make simple Excel tools and plain-English guides for people who sell online (see the shop). Everything is made and posted from the UK.

Custom designs and ideas

Need something tweaked, a different size, or a one-off design? Message me. I enjoy a good project and I'm always up for ideas.

The tax guides

I'm not an accountant, tax adviser or HMRC. The guides follow published GOV.UK guidance and link to it so you can check for yourself, and the free tax checker gives an estimate only. For anything complicated, speak to a qualified accountant. The checker runs in your browser and nothing you type is sent to me (see privacy).