Tailored accounting from professionals invested in your success
Accounting is the language of business, and when it’s accurate and clear, it
empowers you to grow with confidence. No two businesses or individuals have the
same financial situation, and that’s why we offer personalized accounting services
designed to fit your unique needs.
Contact Us
Based in Minnesota
Proudly serving clients locally and nationwide
IRS Resolution
Clear, compliant support for audits, back taxes, payment plans, penalties, and collections
Personalized Service
From essential support to strategic guidance, we customize support for your unique needs
Trusted Expertise
Experience in bookkeeping, tax preparation, and accounting advisory
About Us
Your Trusted Partner in Bookkeeping and Tax Services
Firm Foundation Accounting Incorporated helps business owners move from compliance to clarity, and from clarity to confidence. The firm provides dependable accounting systems, insightful reporting, and proactive advisory that support every stage of a business’ growth.
- It begins with a strong foundation—accurate bookkeeping, organized systems, and tax-ready financials that give business owners peace of mind.
- From there, we focus on expansion—turning financial data into real-time insight through consistent reporting, streamlined workflows, and efficient processes that support smarter decisions and sustainable growth.
- Finally, we provide strategic guidance—offering advanced reporting, forecasting, and high-level financial advisory to help clients make confident, forward-looking decisions.
Firm Foundation meets business owners where they are, combining structure and strategy to deliver accounting that’s clear, reliable, and aligned with each client’s vision.
The result is more than clean books—it’s clarity, confidence, and a foundation built for growth.
OUR SERVICES
Cover Every Aspect of Your Financial Needs
Bookkeeping Services
Payroll Support
Tax Services
Advisory Services
clients love us
Hear What Our Satisfied Clients Have To Say
clients love us
Hear What Our Satisfied Clients Have To Say
MEET OUR ACCOUNTANTS
Get to Know Your Dedicated Team
Specialities
- Accounting and advisory services
- Tax planning and compliance
- Financial reporting
- Cash flow management
- Business advisory
Credentials & Education
- Certified Public Accountant (CPA)
- Enrolled Agent (EA)
- QuickBooks ProAdvisor
- University of Minnesota: Master of Accountancy
- University of Minnesota: Business Analytics Graduate Certificate
- Augsburg University: Bachelor of Art – Finance
- North Hennepin: Associate of Liberal Arts
Jamie Z. Arostegui, CPA
Managing Principal
Jamie Arostegui
Is the Managing Principal of Firm Foundation Accounting Incorporated, where he leads the firm’s strategic direction and oversees its accounting, tax, and advisory services. He brings a combination of technical expertise and practical insight to help business owners bring structure to their finances and clarity to their decisions.
Jamie partners closely with clients to interpret financial data, improve profitability, and plan for sustainable long-term success. His work focuses on building reliable financial systems that support informed decision-making, operational efficiency, and strategic growth.
His approach blends traditional accounting discipline with modern, cloud-based tools—creating financial processes that are efficient, transparent, and actionable. With a steady focus on long-term impact, Jamie helps clients build businesses that are resilient, adaptable, and positioned for continued growth.
Brian Fernandez
Principal
Brian Fernandez
Serves as Principal at Firm Foundation Accounting Incorporated. He focuses on the structure and organization that allow the firm to deliver consistent, high-quality work across all client engagements. He brings a strong background in accounting operations and process design, with a focus on building systems that ensure accuracy, efficiency, and reliability.
Brian develops workflows, templates, and documentation that bring clarity and accountability to both client and internal processes. His approach emphasizes consistency, organization, and thoughtful execution—ensuring work is completed smoothly and financial information can be relied upon with confidence.
Dependable and detail-oriented, Brian is committed to creating the operational foundation that allows both clients and the firm to operate with excellence and scale sustainably.
Specialities
- Accounting operations
- Engagement management
- Process and workflow design
- Quality control and review
- Accounting systems
Credentials & Education
- QuickBooks ProAdvisor
- North Hennepin: Associate of Accounting
WORK WITH US
We Are Your Trusted Accounting Advisor
Annual accounting is outdated. Trying to catch up at tax time leads to stress, missed opportunities, and unreliable numbers.
At Firm Foundation, we meet you where your business is. Whether you simply want peace of mind that your books are compliant, need real-time financials to make better decisions, or want proactive guidance at an ownership level — we have a service tier designed for you.
With streamlined systems, accurate reporting, and the right level of support, you’ll always have the financial clarity your business needs — without the year-end scramble.
Our Client Accounting Service Packages
FOUNDATION
Peace & Compliance
Our Foundation Package is designed for business owners who want the reassurance that compliance is fully handled. We take care of the essentials with quarterly bookkeeping and year-end financials, giving you accurate, tax-ready books without the stress of year-end catch-up.
Bottom line – get peace of mind knowing your books are done-for-you and always in order.
EXPANSION
Real-Time Data to Grow
Our Expansion Package is built for businesses that want more than compliance — they want clarity. With monthly bookkeeping, accounts payable support, and standard monthly reporting, your financials stay current so you can track cash flow, monitor trends, and make smarter decisions.
Bottom line – get real-time clarity from up-to-date financials, so you can make smarter decisions and focus on growth.
STRATEGIC
Partner Without Equity
The Strategic Package is built for businesses that need proactive, strategic advisory. Services may include multi-entity QuickBooks Online accounting, payroll, advanced reporting, customized dashboards, and unlimited support. We help you navigate key decisions with clarity, foresight, and confidence.
Bottom line – Gain a partner without equity — a strategic ally committed to guiding your business forward.
Rates start at $1,000/month and scale with the size and complexity of your business.
All packages are customized based on your needs — part of our commitment to meet you where you are.
What You Need
Growing a business means making constant decisions — and you can’t afford to base them on outdated or incomplete financials. You need reliable, ongoing accounting that gives you a clear picture of where your business stands.
How We Help
We deliver consistent, year-round accounting — not just quick fixes. With streamlined processes, accurate reporting, and responsive support, we make sure your business always has the financial clarity it needs.
What You Gain
Confidence and control. With up-to-date books and proactive support, you’ll make better decisions, reduce stress, and stay focused on what matters most — running and growing your business.
Schedule a Free Consultation
and Uncover Benefits
Find Answers to Frequently Asked Questions
such as tax preparation, bookkeeping, budgeting, and financial reporting.
We offer bookkeeping, tax preparation and planning, and CFO-level advisory services. Our goal is to help business owners save time, reduce stress, and make confident financial
decisions.
We do NOT offer nonprofit, trust, or estate tax preparation.
After our initial consultation, we’ll set up secure access to your financial records, introduce you to your dedicated accountant, and create a tailored plan for your bookkeeping, tax, or
advisory needs.
We offer monthly service packages that cover most of our clients’ ongoing needs. For work outside the scope of your package, we provide transparent hourly rates.
Absolutely. Many clients start with bookkeeping or tax services and later move up to advisory/CFO-level support as their businesses grow.
While most of our clients are on monthly engagements, we also provide one-time services
such as tax return preparation, penalty resolution, or consulting projects.
- Business bank and credit card statements
- Sales systems (e.g., point of sale reports)
- Accounting software access (QuickBooks, etc.)
- Inventory records
- Accounts payable and receivable details
We primarily use QuickBooks Online, as it’s secure, reliable, and designed for seamless collaboration with our clients.
That said, we can also work with other systems depending on your preferences and business needs.
Our goal is to make sure you’re comfortable and that
your financial records are maintained accurately and efficiently.
Many small and mid-sized businesses don’t adequately measure and manage their finances
— yet poor financial management is one of the leading causes of business failure.
Without strong accounting practices in place, your business could face:
- Lost revenue due to errors or overlooked income
- Insufficient tax planning that leads to overpaying or underpaying
- Missed financial opportunities because you don’t have clear insight into your numbers
- Penalties and fines from compliance issues or late filings
- Risk of closure if financial problems spiral unchecked Good accounting isn’t just about compliance — it’s about protecting and strengthening your bottom line.