Tax Preparation & Filing Service
Twelix prepares, reviews, and files your individual and business tax returns with precision. We find the deductions your DIY software misses, e-file federal and state on time, and flag the errors before the IRS does.
Tax readiness is a year-round activity
Businesses that stay ahead of tax deadlines all year save money and avoid penalties. Here is what we handle each quarter.
Year-End Review & Filing Prep
Tax Season Should Not Feel Like a Fire Drill
Missed deadlines, miscategorized transactions, and DIY software that overlooks deductions are preventable. Penalties, IRS notices, and surprise tax bills are not what you signed up for.
Missed Deadlines
IRS late-filing penalties start at 5% per month, plus interest.
Missing Deductions
DIY software cannot identify industry-specific tax savings.
Filing Errors
Incorrect returns trigger IRS notices, audits, and amendments.
Multi-State Complexity
Operating in multiple states means multiple filing requirements.
Why Businesses Choose Twelix
We don't just keep your books, we give you the financial clarity to run your business with confidence.
What Is Tax Preparation & Filing?
Our service covers everything from data gathering to final e-filing. We review your financials, identify every eligible deduction, prepare your individual and business returns, review them for accuracy, and file federal and state returns on time. If you already have a CPA, we prepare the financials they need.
What You Get
How It Works
A structured, repeatable process that takes the guesswork out of onboarding and monthly bookkeeping.
Get a Custom Flat-Rate Quote
Frequently Asked Questions
Both. We prepare your returns, review them with you, and e-file federal and state. If you'd prefer your CPA to file, we deliver CPA-ready returns.
Individual (Form 1040) returns, nonprofit (Form 990) returns, and business returns for sole proprietors, LLCs, partnerships, S-corps, and C-corps. Federal and state in all 50 states.
Yes. We calculate and file your quarterly estimated tax payments to help you avoid underpayment penalties.
Absolutely. We file in all 50 states. If you operate across state lines, we ensure compliance everywhere.
Flat-rate pricing based on entity type, return type, and complexity. No hourly billing. Get a quote during your free consultation.
We handle multi-year preparation and filing. We get you current and compliant, one year at a time.
Still have a question?
Drop us a line and we'll get right back to you.
We work with the tools you already use
No need to switch platforms. We plug into your existing software, or help you choose the right tools during onboarding.
Related Services
More ways we keep your finances clean and current.