Seattle, WA · Serving clients nationwide

Accounting, Tax & Financial Services

Professional bookkeeping, income tax preparation, and financial services for contractors, healthcare practices, restaurants, and individuals. Serving Seattle and beyond.

2026

back to 2024 ready

states covered

powered support

🌐 Bilingual — Full service in English and Español. Switch anytime using EN/ES in the menu above.

Individual tax filing

W-2, self-employed, investments, rental income — federal + all 50 states

Start filing →

Business tax returns

LLC, S-Corp, C-Corp, partnership, sole proprietorship — all entity types

Start filing →

Free consultation

Call (206) 609-0816 or email avitaxes@gmail.com for a free 15-minute consultation

Quarterly business taxes

Self-employed or run a business? Next deadline: Sep 15, 2026

Learn more →

Often overlooked

What are quarterly estimated taxes?

If you're self-employed, run an LLC or S-Corp, or have significant income without tax withheld from a paycheck, the IRS expects you to pay taxes four times a year — not just once in April.

Who needs to pay

Self-employed individuals, freelancers, 1099 contractors, LLC and S-Corp owners, and anyone who expects to owe $1,000 or more in tax after withholding.

The 2026 deadlines

Q1: April 15 · Q2: June 15 · Q3: September 15 · Q4: January 15, 2027. Missing one means IRS penalties, even if you pay everything at once in April.

Why it's easy to miss

Unlike a W-2 job, nothing gets withheld automatically. Many business owners don't realize they owe until the IRS sends a penalty notice.

Never guess what you owe again

Our bookkeeping clients get their quarterly estimate calculated automatically — no surprises, no penalties, no last-minute scramble.

Not ready yet? Just get the reminders.

We'll email you a few days before each quarterly deadline — no commitment, unsubscribe anytime.

What we do

Professional accounting & tax services

From daily bookkeeping to complex business returns, we handle your finances so you can focus on running your business.

Income Tax Preparation

Federal and state returns for individuals and businesses. Self-guided or preparer-reviewed, with accurate, IRS-schema-validated e-filing.

All 50 states

Bookkeeping

Monthly and quarterly bookkeeping services. Bank reconciliation, financial statements, accounts payable and receivable.

Monthly plans

Financial Services

Cash flow analysis, budgeting, financial forecasting, and performance reporting to help you make informed business decisions.

Custom plans

LLC Formation

Starting a new business in Washington? We handle LLC registration, EIN application, and initial setup for your new company.

Washington state

Software vs. a real person

When DIY software isn't enough

Tax software is great for simple returns. But once your situation has any complexity — self-employment, a business, rental property, multiple income sources — a real person catches things a form can't.

A human reviews your return

Software follows rules. A licensed preparer notices when something looks off, asks the follow-up question, and catches deductions a static form doesn't think to ask about.

Year-round, not once a year

Bookkeeping and quarterly tax support mean we know your business before April — not scrambling to understand a year of transactions in one sitting.

A real person, not a call center

Call or email and reach someone who actually knows your file — not a rotating queue of support reps reading from a script.

Bilingual, Seattle-based

Full service in English and Spanish, with local knowledge of Washington state requirements — not a one-size-fits-all national platform.

Who we serve

Industries we specialize in

We understand the unique financial challenges of these industries — from job costing for contractors to COGS tracking for restaurants.

🏗️

General Contractors ▼

🦷

Dental Practices ▼

🏥

Medical Clinics ▼

🍽️

Restaurants & Food Service ▼

We can help with taxes and other financial needs in these areas too:

Backed by AviTax Pro's specialized AI guidance

🚛 Trucking ⚓ Marine & Maritime ✈️ Aviation 📦 Transportation & Logistics ⚖️ Legal / Law Offices 💻 IT Freelancers 🌎 International / Expats 🎖️ Seniors & Veterans 🏠 Real Estate Investors 🚗 Gig Economy Drivers 📦 E-commerce Sellers

Beyond taxes

Financial confidence, all year long

Taxes are one piece of the picture. We believe every family deserves the same access to financial knowledge and trusted resources that wealthier households take for granted.

📚

Building Your Foundation

Short, plain-language guidance on the financial decisions that shape a family's future — not just how to file, but how to build. Tap a topic to learn more.

🏠 Buying your first home▼

First-time buyer programs, down payment assistance, and lender pre-approval can be confusing — and small mistakes here are costly. Reach out and we'll walk through what fits your situation.
📈 Building credit from zero▼

Secured cards, credit-builder loans, and simple on-time payment habits can build a credit file from nothing in under a year. Reach out for personalized guidance on where to start.
🏦 Cash vs. bank — pros, cons, safety▼

Keeping cash feels safe, but it earns nothing, isn't insured, and can raise questions later. A bank account protects your money and builds a financial history. Reach out and we'll help you think it through.
🚩 Spotting scams & pyramid schemes▼

Guaranteed returns, pressure to recruit others, and "get in now" urgency are classic red flags. When in doubt, reach out to us before you invest a cent.

Ask us about this →

🤝

Trusted Connections

Over the years we've worked alongside contractors, immigration attorneys, and other professionals. When a client asks, we're glad to point them to people we personally trust.

🔨 Contractors & painters
🏦 A bank or credit union we trust
🏡 Real estate agents
📝 Notary vs. Immigration Attorney vs. Paralegal — who does what▼

Notary public — witnesses signatures only; cannot give legal advice or represent you in any legal matter. Paralegal — can help prepare documents, but only under a licensed attorney's supervision; cannot advise you or represent your case on their own. Licensed immigration attorney — the only one of the three who can legally advise you and represent your case. If someone offers legal advice or guarantees results without being a licensed attorney, that's a red flag. Reach out if you're ever unsure who you're working with.
💬 Don't see what you need? Just ask.

Request a connection →

These are personal recommendations based on our own experience working with these professionals — not paid endorsements, formal partnerships, or certified referrals.

AviTax Pro

File Your Taxes Online

Our secure tax filing platform handles registration, guided interview, document upload, appointment scheduling, payment, and real-time tax credit tracking. Available in English and Spanish.

Self-guided — Basic ($89)

Complete the guided interview yourself, review your own numbers, and e-file directly — no preparer review.

Preparer-reviewed — Standard & up ($149+)

A licensed AviTaxes preparer reviews your return before it's filed. Add a 1-on-1 Concierge session for a live walkthrough.

Start Filing Your Taxes Here →

🚀 AviTax Pro is in final testing!

Explore the platform and get familiar — full launch coming soon.

About us

About AviTaxes

After 13 years of serving clients, we built AviTax Pro — our own income tax preparation software — because our clients deserve more than a once-a-year service. Many small business owners and working families struggle with finances and administrative tasks year-round — not just in April. Our goal is to give every client, regardless of background or language, the tools and personalized support they need to stay financially confident all year long.

AviTaxes was founded in Seattle in 2012 by Diego R. — a bilingual entrepreneur, former dentist, and longtime community advocate with over two decades of experience across healthcare, business, and financial services.

Diego's career began in dentistry in Colombia, where he earned his Bachelor's degree before moving to Seattle, where he went on to earn an Associate's degree in Business Administration. His career spans working in dental and medical clinics, patient care coordination, family services, medical translation, project management, and healthcare administration at institutions like Seattle Children's Hospital, University of Washington, Harborview Medical Center, and King County Public Health. He has also worked in restaurants and construction — which is exactly why AviTaxes proudly serves those industries. We know them from the inside.

Since opening our doors, we have proudly served clients across 13 tax seasons — helping individuals and small business owners navigate taxes and financial planning with confidence. While we are not a CPA firm, we bring accounting knowledge and hands-on financial expertise to every client we serve.

We are proud to serve Seattle and clients nationwide in both English and Spanish.

AviTax Pro is in final testing now — explore the platform today. Full launch coming soon.

(206) 609-0816

avitaxes@gmail.com

Seattle, WA

AviTaxes & Accounting Solutions — professional tax preparation

Common questions

Frequently asked questions

Yes. Your data is encrypted both in transit and at rest, and access is restricted to you and your assigned preparer — never shared or sold. We follow the same data-protection standards required of all IRS-authorized e-file providers.

Typically your W-2s and/or 1099s, last year's tax return (if available), and any records of deductions like mortgage interest, charitable donations, or business expenses. We'll tell you exactly what's needed for your specific situation once you start.

Self-guided means you complete the interview yourself and review your own numbers before filing — a lower-cost option for straightforward returns. Preparer-reviewed means a licensed AviTaxes preparer checks your return for accuracy and missed deductions before it's filed. Both use the same underlying software.

Yes, amended returns are something we handle. Reach out through the contact form below with a brief description of the situation and we'll let you know what's needed.

If you're self-employed, run an LLC or S-Corp, or expect to owe $1,000 or more in tax beyond what's withheld from a paycheck, yes — the IRS requires quarterly estimated payments. See the section above for the current deadlines, or reach out and we'll help you figure out where you stand.

Yes — we file federal and state returns for all 50 states and work with clients remotely nationwide, though we're based in and proud to serve the Seattle area directly.