About Arithmos Bookkeeping

Our Services

Sumudu Mohottige

Transaction Categorization

Jakub Żerdzicki

Monthly Reconciliation

Javad Esmaeili

Financial Reporting

QuickBooks Online Setup & Cleanup

We help set up your QuickBooks Online account correctly from day one—or clean up historical messes, reconcile past-due accounts, and organize your data so your financials are accurate, compliant, and tax-ready.

Catch-Up & Clean-Up Bookkeeping

If your accounting is months behind or full of errors, we will catch you up and clean it up. We trace missing transactions, reconcile your accounts, and turn financial chaos into clean, accurate, and tax-ready records.


Ongoing Support

Get the ongoing support of a dedicated professional. We manage your regular data entry, reconcile your accounts monthly, and provide the clear financial snapshots you need to make smart, timely business decisions.