Mercury vs Soletax
Mercury vs Soletax, compared side by side on 11 data points: what each one does, how big it is, what it has raised, the tech running each site, and what users report. We score both out of 100 on traction, team and visibility: Mercury is on 67/100 and Soletax on 9/100.
Where each one leads
Mercury
- our overall score: 67/100 against 9/100
Soletax
- agent readiness: 58/100 against 52/100
At a glance
| Measure | Mercury | Soletax |
|---|---|---|
| What it is | Business banking. | The app for UK sole traders. Every receipt categorised, every business mile claimed, invoices in a minute, and you always know the tax to set aside. |
| Category | Fintech, Neobank, Payments, Embedded Finance | SMB Software, Fintech, Accounting Software, Expense Management |
| Sells toBusiness model | B2B | B2B |
| Offering | Software | platform | Software |
| Founded | 2017 | Not published |
| Headquarters | San Francisco, United States | Not published |
| Status | Active | Active |
Size, funding and growth
| Measure | Mercury | Soletax |
|---|---|---|
| Employees | 1,722 | Not published |
| Total funding | $500M | Not published |
| Latest round | Series D | Not published |
| Valuation | $5.2B | Not published |
StartupHub scores
Our own 0-100 ratings. They measure company strength and site quality, not which product suits you.
| Measure | Mercury | Soletax |
|---|---|---|
| StartupHub scoreOur 0-100 rating | 67/100 | 9/100 |
| Traction | 60/100 | Not published |
| Team | 70/100 | Not published |
| Community | 8/100 | Not published |
| Search visibility | 29/100 | 8/100 |
| Quality | 78/100 | Not published |
| Agent readinessHow well an AI agent can read and act on the site | D (52/100) | D (58/100) |
| Domain ratingLink authority, 0-100 | 78/100 | Not published |
Technology
Detected on each public site, so it reflects the marketing stack as well as the product.
| Measure | Mercury | Soletax |
|---|---|---|
| Hosting | Vercel | Not detected |
| CDN | Vercel | Cloudflare |
| Frameworks | Next.js, Tailwind CSS | Bootstrap |
| Open source | Yes | No |
Mercury vs Soletax: common questions
Which is better, Mercury or Soletax?
On our 0-100 score Mercury rates higher (67/100 against 9/100). The score weights traction, team, visibility and profile completeness, so it reflects company strength rather than which product suits you. We compare the two on 11 data points above: read the rows that match what you are buying for.
How do Mercury and Soletax compare on the numbers?
Mercury leads on our overall score (67/100 against 9/100). Soletax leads on agent readiness (58/100 against 52/100).
Read the full Mercury review and pricing or the Soletax review and pricing. You can also browse other Mercury alternatives we track.

