Tax Preparation · Seattle, WA

Tax prep for Seattle businesses.
Filed right, filed on time.

AI-assisted tax prep, reviewed by real experts. Federal and state returns, multi-entity, K-1s, 1099s, multi-state nexus — drafted with AI assistance, reviewed by a tax specialist, and signed off by our in-house CPA before filing.

Get Started See Our Process
See the work

Your return, drafted and reviewed.

Every line item drawn directly from clean books. Reviewed and signed by a credentialed CPA. Filed weeks before the deadline — no April scramble, no surprise tax bills.

The Yesler tax calendar

We start in January.
You file by March.

JAN

Pre-tax review

We review your year, identify cleanup, and start gathering docs.

FEB

AI-assisted drafting

AI organizes documents and identifies line items. A tax specialist reviews, makes corrections, and prepares the return.

MAR

CPA review & file

In-house CPA signs off. We walk you through it on a call, then file weeks before the deadline.

APR

Plan ahead

While others scramble, we model next year's tax strategy.

How it gets done

AI-assisted tax prep,
reviewed by real experts.

AI organizes the documents and drafts a first pass. A tax prep specialist reviews and corrects. Our in-house CPA signs off before anything is filed.

PHASE 1 AI

AI does the prep work

  1. 01

    Document organization

    W-2s, 1099s, K-1s, bank statements, books export, prior returns — AI sorts and tags everything as it lands.

  2. 02

    Initial AI review

    AI matches docs to line items, flags missing pieces, and assembles the first-pass draft of every applicable schedule.

PHASE 2 Specialist

A specialist reviews

  1. 03

    Specialist review & corrections

    A tax prep specialist reviews every line, makes corrections, runs the calculations, and follows up on anything ambiguous.

  2. 04

    Manual adjustments

    Entity-specific deductions, multi-state apportionment, R&D credits, QBI, depreciation strategies — handled manually.

PHASE 3 CPA

CPA signs off

  1. 05

    CPA oversight

    Our in-house CPA reviews the full return, signs off, and walks you through it on a call before anything is filed.

  2. 06

    Final review & file

    Last check, your e-signature, then we file federal and every state where you owe. Confirmation lands in your Portal.

What we file

Every return, every entity, every state.

Whatever your structure, wherever you owe — we file it. Federal, state, multi-entity, K-1s, 1099s, sales-tax-adjacent filings, and every credit and deduction you qualify for.

Federal 1120 / 1120-S / 1065 / Schedule C

Whatever entity you are, we file it.

State income tax returns

All states where you have nexus.

K-1 generation

For partners, S-corp shareholders, LLC members.

1099-NEC / 1099-MISC

Contractor forms issued and filed.

Quarterly estimates

Calculated and reminders sent — no penalty surprises.

R&D credit, QBI, depreciation

Every credit and deduction you qualify for.

Multi-state apportionment

Owe tax in three states? We figure out what's owed where.

Audit support

IRS knocks? We represent you — no panic-fee.

FAQ

Common questions.

Do I need to switch CPAs to use you?
Only if you want to. Many clients keep their existing CPA for tax filing while we handle bookkeeping. Others bring tax to us once they see how clean their books are. Either works.
Can you handle multi-state and multi-entity?
Yes. Multi-state apportionment, consolidated returns, S-corp and partnership filings, holding companies — this is normal Tuesday work for our tax team.
What about my personal return?
We can include personal 1040s as part of the engagement, especially for owners with K-1 income from their business. It's much cleaner when one team handles both.
How early do you start?
January 1. We don't believe in April scrambles. Most clients have their returns drafted by mid-March and filed well before the deadline.

Ready to hand off your tax preparation?

Book a 30-minute demo. We'll show you what your current setup is missing and how we close the gap.

Get Started Call 206-504-3977