US accounting & tax for existing companies
Take over or establish monthly books, reconciliations and tax-ready records for an existing US company, including cross-border operations.
What we can help with
- Opening-balance and existing-record review
- Bank, card and payment-processor reconciliations
- Monthly close with exceptions and open items
- Financial statements and agreed management reports
- Year-end handover and applicable US tax-return scope
- Intercompany and India-side record coordination where agreed
- Catch-up, payroll and inventory work when separately scoped
How we work
Review the records
Review the entity, prior filings, opening balances, systems, accounts and available source records.
Keep books current
Reconcile the agreed accounts, close the period and identify exceptions or missing records.
Coordinate tax
Prepare the year-end handover and agree which tax returns or specialist work sit inside the engagement.
A monthly close you can hand to management and the tax preparer
An existing US company can engage us without buying incorporation. We begin with the entity records, prior filings, opening balances, chart of accounts, bank and card statements, payment-processor exports and the current accounting file. Catch-up or cleanup is priced separately from the ongoing service, so a historic backlog is not silently pushed into the first monthly fee.
The recurring scope identifies the accounts and processors to reconcile, the close cadence, financial statements, management reports and how exceptions are resolved. Each close should surface missing statements, uncategorised activity, unreconciled balances and owner or intercompany transactions rather than hiding them in a generic suspense account. Inventory, receivables, payables, ecommerce and multicurrency work are included only when named in the proposal.
Tax work is scoped around the entity classification, ownership, states and activity. Monthly bookkeeping does not automatically include every federal, state or information return. The proposal identifies the included returns, the preparer or reviewer responsible for them, what ZenoLedger coordinates, and what remains with the company or another adviser. Payroll, transfer-pricing support and India-side filings are separate unless expressly included.
Records to start with.
- Formation, EIN and current ownership records
- Prior federal and state returns
- Opening trial balance or existing accounting file
- Bank, card and payment-processor statements
- Receivables, payables, inventory and payroll records where relevant
- Owner and intercompany transaction records
Scope and fee basis.
The quote reflects the entity count, transaction volume, connected accounts, reporting cadence, record condition and specialist work. Catch-up, tax returns, payroll, inventory and cross-border documentation are listed separately rather than assumed.
The company remains responsible for complete source records and approvals. The proposal names the close deliverables, exceptions process, tax-preparer handoff and filing responsibilities.
Specific filing and handover work.
Monthly books should make year-end responsibilities easier to identify. A foreign-owned US company may need information returns or a different tax package depending on its classification, ownership and transactions.
Packages to consider
Compare the full package scope with the work your company needs. Government fees and third-party charges are separate.
Common questions
Can you take over existing books?
Yes. We review the records and scope any catch-up or cleanup work before the ongoing service begins.
Is payroll included?
Payroll coordination can be included in an agreed scope. Employer-of-record services are not part of a standard bookkeeping engagement.
Does monthly bookkeeping include every tax filing?
No. Federal, state, information-return and India-side work depends on the entity, ownership and activity. The proposal lists each included return and responsibility.
Related guidance
Sources checked 25 October 2026: IRS business recordkeeping guidance, LLC classification overview and current Form 5472 instructions. Service deliverables remain subject to the written proposal.
Need a separately scoped engagement? Explore SOC 2 support.
Ready to discuss accounting & tax?
Tell us about the company, the records you have and the work you need. We will clarify the scope and next steps.