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Accounting · head to head

Lago vs Sage 50

Lago logo

Lago

Accounting

Open-source billing infrastructure for usage-based models

From
Free
Rated
-
Full reviewWebsite
Sage 50 logo

Sage 50

Accounting

Windows desktop accounting with the ledger held in a local data file rather than in a browser

From
$29/month
Rated
-
Full reviewWebsite

The short version

  • Only Lago has a free tier, so it costs nothing to try first.
  • Each has a real cost: Lago free tier limited to 10,000 entities per month with 5M event cap; Sage 50 it is a Windows desktop application, so Mac users need a virtual machine or a hosted desktop, and every added remote worker becomes a hosting bill rather than another browser tab.
  • They diverge on capability: Lago covers Real-time usage metering, Sage 50 covers Local company data file.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Lago and Sage 50 actually diverge.

Attributes where Lago and Sage 50 differ
AttributeLagoSage 50
Starting priceFree$29/month
Pricing modelFreemium with optional paid tierssubscription
Free tierYesNo
PlatformsWeb, Cloud, Self-hosted, On-premise, VPCWindows
FoundedUnknown1981

Identical on both: user rating (Not yet rated), category (Accounting).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Lago

  • Real-time usage metering
  • Multiple pricing models
  • Automated invoicing
  • Prepaid credits
  • Entitlements
  • Multi-currency support
  • Payment orchestration
  • Revenue analytics

Only in Sage 50

  • Local company data file
  • Nominal, sales and purchase ledgers
  • Bank reconciliation
  • VAT and sales tax handling
  • Stock control
  • Job and project costing
  • Multi user access
  • Microsoft 365 integration

What people use each for

The jobs each tool is most often brought in to do.

Lago

  • Building usage-based billing for high-volume APIs and infrastructurenot Sage 50
  • Implementing metered billing for AI and tokenized servicesnot Sage 50
  • Creating subscription and hybrid pricing modelsnot Sage 50
  • Managing multi-currency billing for global companiesnot Sage 50
  • Maintaining billing infrastructure without vendor lock-innot Sage 50

Sage 50

  • An established small business that wants its accounting data physically in the building rather than on a vendor's serversnot Lago
  • A construction or trade business needing job costing and stock depth that the entry level cloud products do not matchnot Lago
  • A company with unreliable internet where a browser only ledger would stop work whenever the line dropsnot Lago
  • A long standing user with a decade of transaction history in the file for whom migrating to anything else is the expensive optionnot Lago

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Lago

  • Free tier limited to 10,000 entities per month with 5M event cap
  • No specific pricing published for Pro annual plan or Scale plan
  • Self-hosted and on-premise deployments require engineering resources
  • Community support only on free tier
  • Scale plan requires annual contracts and sales engagement

Sage 50

  • It is a Windows desktop application, so Mac users need a virtual machine or a hosted desktop, and every added remote worker becomes a hosting bill rather than another browser tab.
  • Multi user working shares a data file over the network, so all users effectively need to be on the same local network or on the same hosted server, and file corruption in a shared file environment is a recovery from backup rather than a support ticket.
  • The United States and United Kingdom editions are separate products with different tax engines, so a business trading in both markets cannot run one Sage 50 across them, and experience or add ons from one edition do not transfer to the other.
  • Additional users are licensed individually at full price, which means a part time bookkeeper, an approver who signs off purchase invoices and a manager who only ever reads reports all cost the same as the full time finance person.
  • Sage's development effort has moved to its cloud accounting products, so the eventual move off Sage 50 is a re-implementation with historical data conversion and a fresh chart of accounts rather than an in place upgrade, and that project only gets larger the longer the file grows.

Pricing, plan by plan

Lago

Free
  • Build (Free)Free
    • 10,000 managed entities per month
    • 5M usage events per month
    • 1K events per second rate limit
  • Pro$399/month
    • 10,000 entities included (graduated pricing to 100K)
    • 25M usage events included (to 500M with graduated rates)
    • 10K events per second (upgradeable to 100K)
  • Scale$null/custom
    • Custom entity and event volumes
    • 50K events per second (upgradeable to 100K)
    • RBAC and SSO (SAML)

Sage 50

$29/month
  • Pro Accounting$50/month
    • Core accounting
    • 1 user
    • Basic reports
  • Premium Accounting$85/month
    • 5 users
    • Job costing
    • Inventory

Which should you pick?

Choose Lago if

  • You need real-time usage metering.
  • You want to start without paying.
  • You work on Web, Cloud, Self-hosted, On-premise, VPC.
  • You also want multiple pricing models.
Lago review

Choose Sage 50 if

  • You need local company data file.
  • You work on Windows.
  • You also want nominal, sales and purchase ledgers.
Sage 50 review

Questions people ask

Is Lago or Sage 50 better?
Neither clearly leads. Lago starts at Free and Sage 50 at $29/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Lago or Sage 50?
Lago has a free tier; the other does not. Paid plans start at Free for Lago and $29/month for Sage 50.
Does Lago or Sage 50 run on more platforms?
Lago runs on Web, Cloud, Self-hosted, On-premise, VPC. Sage 50 runs on Windows.
Can I use Lago for free?
Yes. Lago has a free tier, so you can try it without paying. Sage 50 starts at $29/month.
What is Lago best used for?
Lago is most often used for building usage-based billing for high-volume apis and infrastructure, implementing metered billing for ai and tokenized services, creating subscription and hybrid pricing models, managing multi-currency billing for global companies. Of those, building usage-based billing for high-volume apis and infrastructure and implementing metered billing for ai and tokenized services are not what Sage 50 is typically brought in for.
What can Lago do that Sage 50 cannot?
Lago covers Real-time usage metering, Multiple pricing models, Automated invoicing, Prepaid credits. Sage 50 covers Local company data file, Nominal, sales and purchase ledgers, Bank reconciliation, VAT and sales tax handling.

Answered from the vendors’ own pages

Lago: Can I use Lago open-source for free?

Yes, Lago is open-source under the AGPLv3 license and can be self-hosted. The cloud-based Build plan is also free with limits of 10,000 entities and 5M events per month.

Source
Sage 50: Is Sage 50 cloud software?

No. The application runs on Windows and the ledger is a local file. The Sage 50cloud tiers add Microsoft 365 integration and a sync service for remote access, but the accounting itself is still desktop software.

Lago: What payment providers does Lago integrate with?

Lago integrates with Stripe and Adyen for payment processing. It is not a payment processor itself but orchestrates payments through these providers.

Source
Sage 50: Can my accountant work in it?

Yes, and many accountants in the United Kingdom and the United States know it well. Practically they will either take a backup of the company file, or connect through the remote data access service, or work on a hosted copy. Agree which of those before you start.

Lago: Does Lago support multiple currencies?

Yes, Lago supports multi-currency billing with automatic currency conversion for global businesses.

Source
Sage 50: Does it still require an annual subscription?

Sage moved Sage 50 to subscription licensing, so continued access and tax table updates depend on an active subscription. Confirm what happens to your ability to open historical data if you stop paying.

Sage 50: Is the United Kingdom version the same product as the United States version?

No. They share a name and a heritage but they are different codebases with different tax handling. Buy the edition for the country where you file.

Sage 50: What about payroll?

Payroll is a separate Sage product with its own subscription and per employee cost. Budget for it separately rather than assuming the accounting subscription covers it.

Sage 50: How hard is it to move to a cloud system later?

Expect to convert opening balances and a limited window of transaction history rather than the full file, and to redo the chart of accounts, the customer and supplier records and any custom reports. Most businesses do it at a year end for that reason.

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