Thulin Bookkeeping
YOUR TRUSTED GROWTH PARTNERDepend on us to help recover lost revenue and reclaim your time for more important things.
What’s at stake?
Savings By the Numbers with Your Growth Partner
Business owners who work with reliable bookkeepers can save many thousands of dollars every year and dozens of hours annually. We have saved our customers an average of more than $20K, while reclaiming lost time for things that matter most to them. Let us do the same for you!
Account Set-Up & Clean-Up
Do you need help setting up your books? Or maybe you found some errors which need correcting. We can help with both!
Monthly & Yearly Tasks
We provide regular account maintenance such as recording and categorizing transactions, payroll processing, and reconciling account statements.
Financial Report & Analysis
Along with basic financial reports, we can assist with custom reports and provide helpful analysis and insight.
Thulin Bookkeeping Provides Professional Bookkeeping Services
Accurate, organized financials are the foundation of a strong business. Our bookkeeping services are designed to provide the clarity, compliance, and confidence required so you can focus on growth instead of paperwork.
Account Setup & System Configuration
A properly structured accounting system ensures reliable reporting and meaningful insights from day one.
We configure your accounting software to support complete and accurate financial statements, including:
- Custom chart of accounts tailored to your business needs
- Income and expense account structure
- Bank and credit card feed integrations
- Loan and liability setup
- Customer and vendor lists
- Inventory configuration (if applicable)
- Invoice and statement formatting
- Payroll and tax tracking setup
Every element is designed to support clean data, regulatory compliance, and actionable financial reporting.
Monthly Bookkeeping Services
Consistent, accurate monthly bookkeeping keeps your business running smoothly and protects your bottom line.
Our standard monthly services include:
- Transaction categorization
- Accounts payable and vendor management
- Accounts receivable and invoicing
- Payroll processing and compliance support
- Bank and credit card reconciliations
- Regulatory and tax form support
- Monthly financial statements with summary analysis
Each month, you receive organized financials that reflect the true health of your business.
Bank & Credit Card Reconciliation
Reconciliation ensures your books match your actual financial activity.
We reconcile your monthly bank and credit card statements against your accounting records to:
- Identify discrepancies and errors
- Prevent fraud and duplicate entries
- Maintain tax and regulatory compliance
- Ensure accurate reporting
This process is essential to protecting your cash flow and financial integrity.
Transaction Categorization & Financial Accuracy
Accurate categorization is the backbone of reliable reporting.
Every transaction is properly classified within your chart of accounts to:
- Support accurate tax filings
- Provide meaningful profit and expense reporting
- Improve KPI accuracy
- Assign activity to relevant customers, projects, or cost centers
When your underlying data is correct, your financial statements become powerful decision-making tools.
Payroll Services & Compliance Support
Payroll requires precision and strict regulatory adherence.
Our payroll services include:
- Maintaining accurate employee records
- Processing payroll payments
- Filing required federal and state forms (including Forms 941 and 940)
- Monitoring compliance with local, state, and federal regulations
We ensure your payroll is processed accurately and on time — every time.
Account Cleanup & Catch-Up Services
If your books are behind or inaccurate, we restore order and clarity.
Our cleanup process includes:
- Reviewing system setup and historical data
- Identifying reconciliation issues and misclassifications
- Correcting errors where documentation supports changes
- Communicating all journal entry adjustments with ownership prior to posting
- Balancing accounts and bringing records up to current standards
Cleanups typically begin with your most recent tax filing, though we can go further back if necessary.
Contractor-Specific & Project-Based Services
For contractors and project-based businesses, detailed tracking is essential to protecting margins and managing cash flow.
Expense Tracking & Budget Monitoring
We ensure expenses are assigned to the correct accounts and cost centers so you can:
- Monitor budgets in real time
- Identify cost overruns early
- Improve margin visibility
- Analyze profitability by job or department
Proper tracking reveals where your business is strongest — and where adjustments are needed.
Job Costing & Project Profitability
Tracking costs by job or project is critical to maintaining healthy margins.
Our job costing services help you:
- Capture all labor, material, subcontractor, and overhead costs
- Identify overlooked billable items
- Increase recoverable revenue
- Compare estimated vs. actual performance
- Determine which jobs drive profit and which require corrective action
Job-level visibility transforms guesswork into informed decision-making.
Financial Reporting & Strategic Advisory
Beyond bookkeeping, we provide insight that helps you lead your business with confidence.
Monthly Financial Reporting
Each month, owners and management receive clear, organized financial reports, including:
- Profit & Loss Statement
- Balance Sheet
- Cash Flow Statement
- Supporting schedules (as needed)
Reports are structured to highlight trends, performance indicators, and areas requiring attention.
Business Analysis & Advisory Services
For business owners seeking deeper insight, we offer analytical and advisory support tailored to your goals.
Services may include:
- KPI development and monitoring
- Margin analysis
- Cash flow forecasting
- Operational performance review
- Financial trend analysis
- Strategic planning support
Our goal is not only to maintain your books, but to help you build a stronger, more profitable business with clarity and confidence.
Get In Touch
Sioux Falls, SD
605-409-8692
[email protected]
English