Income Tax Filing & Ongoing Tax Strategy Expertise that pays — every year
Your business deserves more than basic compliance. At Sonnenburg Consulting, our Income Tax Filing & Advisory Services are built to serve your needs today and protect your future. We combine precision, proactive planning, and trusted guidance to ensure your tax position is optimized — not just prepared.
What We Do for You
We’ve built this service suite so you never worry about taxes again — we take it off your plate entirely, while always keeping you in control.
- Annual Federal & State Tax Returns
Whether you’re an individual, a small business, or a more complex entity (S-Corp, C-Corp, Partnership, LLC, etc.), we prepare and file your returns accurately and on time. - Quarterly Estimated Tax Payments / Filings
We calculate and file your required quarterly payments, so you avoid surprises, under-payment penalties, or cash flow shocks. - Unlimited Tax Advisory Access + Year-End Planning
Need to ask a question in March or strategize a transaction in November? You get year-round access to our tax professionals. We’ll also lead year-end planning sessions tailored to your situation. - Ongoing Tax‐Saving Strategy & Implementation
We continuously monitor your financial picture and update you with actionable opportunities — credits, deductions, entity-level strategies, timing shifts, qualified business income (QBI) planning, and more. - Audit Support & Representation
If the IRS or state tax authority comes knocking, we’ll stand with you — analyzing notices, preparing responses, negotiating, and guiding you through each step. - Entity Structuring & Reorganization Advice
Business structure matters. We help you evaluate whether converting, restructuring, or reorganizing (e.g. merger, spin-off, change of entity) will lead to tax efficiencies. - IRS / State Notices & Resolution
Notices, audits, appeals — we help interpret, strategize, and resolve tax issues proactively and defensively.
Why Sonnenburg Consulting?
We don’t just “do taxes.” We become your trusted partner in financial stewardship.
- Proactive, Not Reactive
We don’t wait for April. We’re constantly looking for opportunities and course-correcting along the way. - Accuracy + Confidence
Every return is cross-reviewed, checked, and stress-tested before filing. You can file with full confidence. - Transparent Pricing & Clear Communication
No mysterious fees, no late surprises. You’ll know what you’re paying for, and we’ll always explain complex tax jargon in plain English. - Tailored Advice, Not One-Size-Fits-All
Your situation is unique — your tax plan should be too. - Unmatched Accessibility
We pride ourselves on responsiveness. You’ll never feel like you’re waiting in a queue. - Nationwide Reach, Local Touch
While we operate nationwide and can work virtually, we still bring the personal commitment and care of a local firm (and travel if needed). - Confidential & Trustworthy
Your financial data stays secure and private, held under professional confidentiality safeguards.
How the Process Works
- Discovery Call / Kickoff
We’ll dig into your past returns, current operations, and plans. - Document Collection & Review
We guide you through a secure upload process for all relevant statements, receipts, K-1s, etc. - Preliminary Tax Strategy
Midway through preparation, we’ll propose strategies and scenarios for your input. - Final Return Preparation & Review
You get a draft to review; we incorporate feedback, finalize, and file. - Ongoing Monitoring & Advisory
After filing, we stay engaged — helping you throughout the year, updating your plan as things change. - Year-End Planning Session
As year’s close approaches, we review your performance, project tax liabilities, and recommend adjustments for the upcoming year.
Who Should Use This Service?
- Business owners who want peace of mind instead of scrambling during tax season
- High net worth individuals with multiple income sources, investments, or complex returns
- Companies that operate across states or internationally
- Anyone who wants proactive tax planning, year-round support, and maximum savings
Ready to Get Started?
Let’s make your tax experience smoother, smarter, and far more efficient