Which one is cheaper?

Quaderno is the cheaper option, starting at $29/mo vs $35/mo for Mercury.

Can I use either one for free?

Mercury has a free plan. Quaderno doesn't — though they do offer a free trial.

Both use a flat-rate model, so the comparison is straightforward — it comes down to features and limits at each price point.

Which one is a better deal?

Depends on what you need. Mercury: Mercury is the affordable fintech banking alternative to Brex and Ramp — they're not trying to be the premium play, they're trying to be the obvious default for startups who don't want to deal with a legacy bank. At $0 to start and $350 at the top, they're well below what traditional banks charge for comparable business services. Quaderno: At $29–$149/mo for automated tax compliance, Quaderno is positioned as the accessible, developer-friendly alternative to heavier platforms like Avalara or TaxJar, which can run into the hundreds or thousands monthly. They're fishing for bootstrapped SaaS founders and SMBs who need real compliance without enterprise pricing.

Mercury vs Quaderno Pricing (2026)

How do these two stack up on price? Here's what each one costs, what you get, and where the value sits.

	Mercury	Quaderno
Starts at	$35/mo	$29/mo
Number of plans	3	5
Free plan		—
Free trial	—
Pricing model	flat-rate	flat-rate

Mercury

Official page

Mercury

$0/mo

Mercury Plus

$35/mo

Invoice with ACH debit ($1/transaction)
Recurring invoices
Invoicing API (500 invoices created/month)
Unlimited 1099 tax filings
$50 off eligible LegalZoom Compliance Plans
6 months free Xero

Mercury Pro

$350/mo

Relationship manager
Invoice with ACH debit ($0/transaction)
Invoicing API (unlimited invoices created/mo)
NetSuite categorizations
Unlimited 1099 tax filings
$50 off eligible LegalZoom Compliance Plans
6 months free Xero

Quaderno

Official page

Growth

$149/mo

2,500 transactions / month
Unlimited users
Unlimited jurisdictions
Unlimited integrations

Business

Popular

$99/mo

1,000 transactions / month
Unlimited users
Unlimited jurisdictions
Unlimited integrations

Startup

$49/mo

250 transactions / month
Unlimited users
Unlimited jurisdictions
Unlimited integrations

Hobby

$29/mo

25 transactions / month
1 user
1 jurisdiction
1 integration

Enterprise

Custom

Mercury vs Quaderno FAQ

Which one is cheaper?: Quaderno is the cheaper option, starting at $29/mo vs $35/mo for Mercury.
Can I use either one for free?: Mercury has a free plan. Quaderno doesn't — though they do offer a free trial.
How do they charge?: Both use a flat-rate model, so the comparison is straightforward — it comes down to features and limits at each price point.
Which one is a better deal?: Depends on what you need. Mercury: Mercury is the affordable fintech banking alternative to Brex and Ramp — they're not trying to be the premium play, they're trying to be the obvious default for startups who don't want to deal with a legacy bank. At $0 to start and $350 at the top, they're well below what traditional banks charge for comparable business services. Quaderno: At $29–$149/mo for automated tax compliance, Quaderno is positioned as the accessible, developer-friendly alternative to heavier platforms like Avalara or TaxJar, which can run into the hundreds or thousands monthly. They're fishing for bootstrapped SaaS founders and SMBs who need real compliance without enterprise pricing.

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