Softwr

Accounting · head to head

Polar vs Xero

Polar logo

Polar

Accounting

Billing and revenue platform for AI and infrastructure companies

From
Free
Rated
-
Full reviewWebsite
Xero logo

Xero

Accounting

Beautiful accounting software

From
$13/month
Rated
-
Full reviewWebsite

The short version

  • Only Polar has a free tier, so it costs nothing to try first.
  • Each has a real cost: Polar percentage-based fees higher than some specialized processors for high-volume transactions; Xero the Early plan caps you at 20 invoices and 5 bills per month, and the invoice limit counts both approving and sending
  • They diverge on capability: Polar covers Usage Billing, Xero covers Bank reconciliation.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Polar and Xero actually diverge.

Attributes where Polar and Xero differ
AttributePolarXero
Starting priceFree$13/month
Pricing modelPercentage of transaction plus per-transaction feesubscription
Free tierYesNo
PlatformsWeb, APIWeb, Ios, Android, Api
FoundedUnknown2006

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 Polar

  • Usage Billing
  • Subscriptions
  • Seat Management
  • Prepaid Credits
  • Hosted Checkout
  • Cost Insights
  • Merchant of Record

Only in Xero

  • Bank reconciliation
  • Invoicing
  • Bill payment
  • Expense claims
  • Financial reporting
  • Inventory tracking
  • Project tracking
  • Mobile apps

What people use each for

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

Polar

  • Billing for token and API call consumption by LLM applicationsnot Xero
  • Managing tiered pricing for infrastructure usage-based servicesnot Xero
  • Handling subscription and usage hybrid modelsnot Xero
  • Monetizing AI APIs with usage metering and creditsnot Xero

Xero

  • Small business bookkeeping, invoicing and bank reconciliationnot Polar
  • Bill payment and purchase order managementnot Polar
  • Sharing books with an accountant or bookkeepernot Polar

Where each one falls short

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

Polar

  • Percentage-based fees higher than some specialized processors for high-volume transactions
  • Merchant of record model may not suit companies preferring direct payment control
  • Free Starter tier limited with 5% fees reducing appeal for production use
  • Setup and integration effort required despite API simplicity

Xero

  • The Early plan caps you at 20 invoices and 5 bills per month, and the invoice limit counts both approving and sending
  • Invoices created by connected app partners count against the Early plan invoice limit
  • Multiple currencies, project time and cost tracking, employee expense and mileage claims and industry benchmarking are restricted to the top Established plan at $90 per month
  • Cash flow forecasting is capped at 30 days on Early and 60 days on Growing, with 180 days only on Established
  • Payroll is not included in any plan and costs an extra $36 a month plus $6 per employee or contractor through Gusto
  • Inventory Plus is a paid optional add-on rather than part of any plan
  • The advertised 90% off applies only to the first 6 months, after which the regular $25, $55 or $90 monthly price auto-renews
  • The introductory discount excludes add-ons, usage charges and payment fees
  • Payment fees apply to online invoice payments and to bill payments other than standard domestic ACH, and are billed on top of the subscription
  • Subscriptions are billed monthly with no annual payment option, and after upgrading you must wait one month before downgrading to a cheaper plan
  • Xero states subscription prices are increasing from October 1, 2026

Pricing, plan by plan

Polar

Free
  • StarterFree
    • 5% + $0.50 per transaction
    • Free tier for testing
    • Basic features
  • Pro$20/month
    • 3.8% + $0.40 per transaction
    • Full platform access
    • Cost insights
  • Growth$100/month
    • 3.6% + $0.35 per transaction
    • Priority support
    • Volume benefits
  • Scale$400/month
    • 3.4% + $0.30 per transaction
    • Dedicated support
    • Custom integration

Xero

$13/month
  • Early$13/month
    • Send 20 invoices
    • Enter 5 bills
    • Reconcile bank transactions
  • Growing$37/month
    • Unlimited invoices & bills
    • Bulk reconcile transactions
    • Short-term cash flow
  • Established$70/month
    • Everything in Growing
    • Use multiple currencies
    • Track projects

Which should you pick?

Choose Polar if

  • You need usage billing.
  • You want to start without paying.
  • You work on Web, API.
  • You also want subscriptions.
Polar review

Choose Xero if

  • You need bank reconciliation.
  • You work on Web, Ios, Android, Api.
  • You also want invoicing.
Xero review

Questions people ask

Is Polar or Xero better?
Neither clearly leads. Polar starts at Free and Xero at $13/month, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Polar or Xero?
Polar has a free tier; the other does not. Paid plans start at Free for Polar and $13/month for Xero.
Does Polar or Xero run on more platforms?
Polar runs on Web, API. Xero runs on Web, Ios, Android, Api.
Can I use Polar for free?
Yes. Polar has a free tier, so you can try it without paying. Xero starts at $13/month.
What is Polar best used for?
Polar is most often used for billing for token and api call consumption by llm applications, managing tiered pricing for infrastructure usage-based services, handling subscription and usage hybrid models, monetizing ai apis with usage metering and credits. Of those, billing for token and api call consumption by llm applications and managing tiered pricing for infrastructure usage-based services are not what Xero is typically brought in for.
What can Polar do that Xero cannot?
Polar covers Usage Billing, Subscriptions, Seat Management, Prepaid Credits. Xero covers Bank reconciliation, Invoicing, Bill payment, Expense claims.

Answered from the vendors’ own pages

Polar: Do you handle international payments and taxes?

Yes, Polar acts as merchant of record in 100+ markets, handling payment processing, tax collection, and compliance automatically.

Source
Polar: Is there a free tier?

Yes, the Starter plan is free and charges 5% + $0.50 per transaction, ideal for testing and early-stage development.

Source
Polar: Do you offer discounts for startups?

Yes, the Startup Program provides the Scale plan free for 12 months for early-stage AI companies.

Source
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