This tool is super valuable. For being one of the first early stages of this product, you can get a lot out of it.
The breakdown is nice and it's been good to check this out and see a decent implimentation of this kind of calculator.
I'm looking forward to seeing how far this can be explored and developed.
Obviously, anything made in spreadsheets has a lot of room for UI improvement, but those struggles are all meaningless when you recognize the value of this calculator. As a freelancer, it's always unclear how much money you're actually taking home from a project and making sure you're not underpricing yourself. This is something that gets better over time as a freelancer, but in the mean time he/she is leaving money on the table, underpricing themselves, or, worst case scenario, losing money on projects. I'm super impressed by the ease of use and value of information.
In theory, this calculator is great. But in my opinion, you should be able to tinker around with it a bit before having to give your email address and it would definitely be better as a web app than as a spreadsheet. But all in good time, I'm sure. For now, it gets the job done. :)
The folks at Sail are doing great things for freelancers - pay attention to them!
I really enjoyed trying out the product and being able to assess how much I should save in taxes. Having already saved in the past, I had a general idea of what % I needed to save and after plugging in my numbers, Freelance Project Tax Calculator gave back almost the same exact number I had been told to save. It's right on the money (no pun intended) and I really enjoy its simplicity.