Soldo vs Mercury
A detailed comparison to help you choose between Soldo and Mercury.
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Verdict: Mercury wins
Mercury scores 4.2/5, edging out Soldo at 4.0/5. US-registered startups and small businesses that want free business banking with built-in, approval-gated AI for spend insight and routine finance operations.
Soldo Zakelijke uitgavenkaarten | Mercury Banking for startups with AI insights | |
|---|---|---|
| Rating | 4.0 (1 review) | 4.2 (1 review) |
| Pricing Model | paid | free |
| Starting Price | Pricing varies | Free |
| Best For | Incorporated European businesses that want to issue prepaid company cards with real pre-purchase spend controls and automated receipt-to-accounting flow, and can live within the Plus tier's feature set. | US-registered startups and small businesses that want free business banking with built-in, approval-gated AI for spend insight and routine finance operations. |
| Free Tier | ||
| API Access | ||
| Team Features | ||
| Open Source | ||
| Tags | — | free tierapi access |
| Visit Mercury → |
Soldo
Pros
- + Controls fire before the money moves: per-card caps and merchant-category rules declined my test transaction at the point of sale instead of flagging it later
- + Card range is wider than most rivals — physical, virtual, temporary, multi-user company, fuel and subscription cards, all with Apple/Google Pay (soldo.com/en-gb/pricing)
- + Xero integration carried receipts and categories into reconciliation and removed the manual matching step in my trial; Capterra reviewers report 4-5 hours/week saved on receipt input
- + Transparent entry pricing at £27/£39 per month plus VAT with a 30-day trial and published financial-services fee summary, rather than sales-gated quotes (soldo.com/en-gb/pricing, at time of writing)
- + FCA-authorised e-money institution (ref 900459) and Mastercard-issued cards — regulated money, not a software wrapper; Trustpilot 4.89/5 from 1,761 reviews (April 2026, via businessexpert.co.uk)
Cons
- - No free plan and no service for sole traders — incorporated entities only (soldo.com/en-gb/questions)
- - Table-stakes features sit above Standard: OCR receipt verification, multi-currency wallets and advanced approvals all require Plus at £39/month
- - Nearly every serious integration is an add-on — NetSuite, Dynamics, SAP Concur, SSO, API, payroll CSV and Amazon Business all cost extra (soldo.com/en-gb/pricing)
- - Reporting is the recurring weakness in reviews: limited for advanced analysis, and PDF expense reports render attached invoice images at poor quality in my test
- - The 2023 move from per-card to per-user pricing raised costs for customers with non-spending users like accountants (Capterra reviews)
Mercury
Pros
- + Base plan is genuinely $0/month with no minimums or overdraft fees, and the free surface covers checking, cards, invoicing and bill pay
- + Insights — live dashboards, ad-hoc financial questions, spend notifications — is included free on every plan per mercury.com/insights
- + Command executes natural-language instructions across the account stack but only with explicit per-action approval and a traceable record
- + Up to $5M FDIC insurance through partner banks and sweep networks, per the plan comparison
- + Free API, MCP server and CLI let you drive Mercury from your own agent tooling
Cons
- - US-only for business banking, cards and treasury — non-US entities are excluded
- - Treasury requires a $250K Mercury balance to unlock, locking out early-stage startups
- - AI features only see Mercury data; no connection to external revenue or payroll systems unless routed through Mercury
- - Enriched NetSuite automations and $0 ACH debit invoicing sit behind the $299/month Pro plan
- - 1099 filings cost $5 per filing on the free plan, and Books/Payroll are add-ons whose fee waivers end 31 December 2026
Frequently Asked Questions
Which is better, Soldo or Mercury?▼
Mercury scores higher at 4.2/5 vs 4.0/5 for Soldo, making it the better-rated option in our comparison.
What is the difference between Soldo and Mercury?▼
Soldo: Soldo issues prepaid company Mastercards with spending rules per card, and collects receipts and expense data for the finance team. Mercury: Mercury provides business banking for startups and growing companies, with accounts, cards, bill pay and treasury in one dashboard.
Is Soldo or Mercury more affordable?▼
Soldo starts at €0/mo, Mercury starts at €0/mo. Check the comparison table above for current pricing.
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