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Tax Prep Support for CPAs

We don’t file tax returns. We keep your bookkeeping clean and your financials organized so your CPA can prepare filings faster, with fewer questions and fewer surprises.

A Smoother Tax Season Starts Months Earlier

Most tax stress isn’t about the filing itself. It comes from missing transactions, unclear categories, unreconciled accounts, and last-minute cleanup. Our role is to keep your books accurate throughout the year so tax prep becomes a straightforward handoff instead of a scramble. Plumb Financial is based in Edmonds and works with service-based businesses across Snohomish County and North King County, including Lynnwood, Mountlake Terrace, Shoreline, and nearby areas.

Organized financial documents for tax season

Is This the Right Type of Tax Support?

This service is a good fit if you already work with a CPA, or plan to. We support the process behind the scenes by keeping your bookkeeping current and your financials easy to hand off at year end.

Most of our clients run service-based and project-driven businesses. Trades are common, but not required. If your business has multiple accounts, job-related expenses, deposits, or seasonal swings, clean bookkeeping before tax season makes a noticeable difference.

This also helps if you’ve ever had that moment where your CPA asks a question and you realize you’re not sure where a transfer came from or why a category changed. When books are kept clean all year, those questions usually disappear.

Our bookkeeping is handled by a QuickBooks Certified ProAdvisor with experience supporting service and project-based businesses, so the reports your CPA receives are consistent and reliable.

Quick reminder: we’re not a CPA firm and we don’t file tax returns. We support your CPA by keeping the bookkeeping clean and consistent.

Tax Prep Support for CPAs, Not Tax Filing

Plumb Financial provides ongoing bookkeeping and year-round readiness so your CPA can prepare returns with confidence. We are not a CPA firm and we do not file tax returns. Instead, we focus on reducing the issues that slow tax prep down or create unnecessary back-and-forth.

When your books are reconciled, categorized consistently, and kept current, your CPA can focus on tax strategy and filing instead of untangling transactions or requesting missing information. It also makes it easier for you to answer questions quickly because you’re not trying to remember what happened six months ago.

Financial planning discussion

Every CPA has preferences, but most need the same foundation: reconciled bank and credit card accounts, consistent categorization, clean financial statements, and clear documentation for anything unusual. We also aim to reduce the common friction points, like transfers that aren’t labeled, owner activity that isn’t clearly coded, and large purchases that don’t have notes. Tax prep support is provided through ongoing bookkeeping, not as a one-off service. Most clients fall within our standard bookkeeping range of $800 to $1,500 per month depending on transaction volume and complexity. This approach keeps tax season predictable and avoids last-minute cleanup projects.

What a CPA-Ready Tax Package Usually Includes

STEP 2

Reconcile accounts and clean up categories

Tax prep goes smoother when the books match reality. We focus on accurate reconciliations and consistent categorization so reports tell a clear story.

Process step 2

Hear What Our Clients Have
To Say

Marcus T.

Before Plumb Financial, I had no real idea where my money was going month to month. Joe got our books cleaned up and organized, and now I actually understand our numbers. It has made a real difference in how I run the business.

Sarah K.

We were growing fast but struggling with cash flow, and I didn't have a clear picture of what was happening. Working with Plumb Financial gave us the reporting we needed to make smarter decisions on pricing and hiring. I wish we had done this sooner.

David R.

What I appreciated most was that Joe actually understands how project-based businesses work. The bookkeeping is clean and current, and the CFO advisory side has been genuinely useful, not just a monthly check-in.

Rachel M.

Straight communication and no surprises — that's what I was looking for and that's exactly what I got. Our financials finally make sense, and I feel confident about where the business stands.

New construction home in the Seattle area

Wondering what
bookkeeping really costs?

Our free cost guide breaks down what drives pricing so you can budget with confidence.