Controller Services for Close, GAAP Reporting, and Audit Readiness

Porter Accounting LLC gives growing businesses controller-level ownership of the numbers: a disciplined month-end and year-end close, reviewed accruals, GAAP financial statements, ASC 606 revenue recognition, and records that hold up when auditors, lenders, or investors ask questions. Your bookkeeping stays the foundation; the controller layer makes it reliable enough to report on. Virtual across the United States, with appointments in select California areas.

Accounting professional reviewing financial reports with business owner

What Our Controller Services Cover

Close management, GAAP reporting, revenue recognition, and audit readiness, built on accurate books and scaled to your stage of growth.

Month-End & Year-End Close

A documented close calendar with reconciliations, accrual and prepaid entries, cutoff review, and flux analysis so monthly results are final, consistent, and on time.

GAAP Financial Statements

Accrual-basis balance sheet, income statement, and cash flow statement prepared under GAAP for lenders, investors, boards, and other external stakeholders.

ASC 606 Revenue Recognition

Contract review, performance obligations, and deferred revenue schedules for SaaS, subscription, construction, and multi-element arrangements.

Audit Readiness

Organized PBC lists, reconciled balances, and supporting schedules, plus help answering requests while you work alongside your external auditors.

Budgets & Cash Flow

Budget-to-actual tracking and cash-flow monitoring that give fractional CFO forecasting and planning a dependable set of numbers to start from.

Systems & Internal Controls

QuickBooks, Xero, NetSuite, or Acumatica setup with a clean chart of accounts, approval workflows, and controls that scale with transaction volume.

Controller-Level Accounting

A Close You Can Report On and Defend

A controller turns recorded transactions into financial statements leadership can rely on. Porter Accounting LLC runs or oversees your close on a set calendar, reviews reconciliations and accruals, applies GAAP and ASC 606 where your contracts require it, and keeps schedules organized for audit and lender review. The result is timely reporting, fewer surprises at year-end, and a cleaner handoff to fractional CFO planning. Virtual nationwide, with appointments around Santa Rosa, San Francisco, and San Jose.

Controller reviewing financial performance reports
The Porter Difference

Why Choose Porter Accounting LLC?

Controller support from an accounting leader who has run closes, implemented ERPs, and prepared companies for audit.

Technical Depth

Hands-on experience with GAAP reporting, ASC 606 revenue recognition, ERP implementations, and audit readiness.

Right-Sized Scope

Hourly controller support or a monthly plan, sized to your transaction volume, reporting deadlines, and audit timeline.

One Team As You Grow

Bookkeeping, controller, and fractional CFO support from one firm, so records, close, and strategy stay connected.

Flexible Delivery

Virtual controller support across the United States, with appointment-based in-person meetings in select California areas.

Meet the Founder

Experienced financial leadership for growing businesses and executive teams.

Portrait of Thao Porter, Accounting Leader at Porter Accounting LLC

Thao Porter, MSA

Accounting Leader

Thao Porter is an experienced accounting leader with over a decade of expertise supporting growing companies across SaaS, manufacturing, construction, consumer packaged goods, retail, and franchise industries. As the Accounting Leader at Porter Accounting LLC, she specializes in GAAP reporting, revenue recognition under ASC 606, ERP implementations, and audit readiness. Thao has a proven track record of streamlining close processes, improving cash flow, and strengthening internal controls for the businesses she serves. She partners closely with executive teams to enhance financial visibility and support strategic decision-making, helping clients move beyond basic bookkeeping toward clear, actionable financial insight. Holding a Master of Science in Accounting, Thao is committed to delivering practical, high-quality financial guidance to growing businesses throughout the United States, ensuring every client gains confidence in their numbers and their path forward.

Frequently Asked Questions

What does a controller do for a business?

A controller owns the accuracy of a company’s financial information. That usually means running the month-end and year-end close, reviewing reconciliations and accruals, preparing GAAP financial statements, maintaining internal controls, and producing management reports. A controller also keeps records organized for auditors and lenders and gives leadership, or a fractional CFO, reliable numbers for budgeting, forecasting, and decisions.

What are financial controller services?

How are controller services different from bookkeeping?

Can a controller help prepare GAAP financial statements?

Can controller services include cash-flow forecasting and budgeting?

Does Porter Accounting LLC provide virtual controller services?

Can a controller help us get audit-ready?

How much do financial controller services cost?

How do I know my business needs a controller instead of just a bookkeeper?

Do controller services include ASC 606 revenue recognition?

What does a typical monthly close look like with Porter?

How do controller services relate to fractional CFO services?

Is Your Close Ready for Scrutiny?

Talk with Porter Accounting LLC about close management, GAAP reporting, and audit readiness.

Controller Service Areas

Virtual support is available nationwide, with appointment-based in-person service in select California areas.

United States

Virtual Coverage

San Francisco

In-Person Area

By Appointment

Service Format

Do We Support Your Business?

Ask about virtual coverage or appointment-based in-person accounting support.

Get a Close You Can Rely On

Tell us about your current close, reporting deadlines, revenue model, and any upcoming audit so we can scope the right level of controller support.

Contact Us Today

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