Tax preparation, bookkeeping, and accounting services for Nampa, Boise, and the Treasure Valley.

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Tax & Bookkeeping for Sienna Creek Businesses

Tax preparation and bookkeeping for Sienna Creek businesses. Enrolled Agents serving Meridian and the Treasure Valley.

Tax & Accounting for Sienna Creek

Sienna Creek sits in one of the fastest-growing parts of Meridian, which itself is one of Idaho’s fastest-growing cities. That growth brings opportunity. New businesses launch every month. Contractors stay busy building homes and finishing basements. Service providers establish routes through the neighborhood. And all of them need tax and accounting services that actually help them keep more of what they earn.

We’re Castell Tax Experts, based in Nampa and serving the entire Treasure Valley. Our team includes Enrolled Agents who are licensed to represent you directly before the IRS. That means when tax issues get complicated, we don’t hand you off to someone else. We handle it ourselves.

Business Tax Preparation

Comprehensive tax returns for LLCs, S Corps, partnerships, and sole proprietors. We identify every available deduction and credit so you’re not leaving money on the table when you file.

Monthly Bookkeeping

Books closed every month with transactions categorized and accounts reconciled. You get financial statements that show where your business stands and records that are ready when tax season arrives.

New Business Setup

Starting fresh? We help you choose the right entity structure, set up your accounting system, and prepare for your first tax filing. Getting structured correctly from the beginning saves headaches later.

IRS Representation

As Enrolled Agents, we respond to IRS notices, handle audits, and negotiate on your behalf. When the IRS reaches out, you have a licensed professional in your corner who knows what they’re doing.

Sienna Creek Businesses We Work With

The businesses in and around Sienna Creek reflect what happens when a community grows quickly. There are contractors finishing homes in new phases of development. Service businesses establishing customer bases in the neighborhood. Home-based operations run by people who moved to the area for the lifestyle but brought their work with them.

We work with businesses doing anywhere from $50K to several million in revenue. Big enough to need professional help with taxes and books. Not so big that you need a full accounting department.

Contractors and Trades

Electricians, plumbers, HVAC technicians, and general contractors working across Meridian. We handle the job costing and tax strategies that help you bid accurately and keep more profit at year end.

Real Estate Professionals

Agents, brokers, and property managers operating in the Treasure Valley market. Commission income creates unique tax situations. We track expenses properly and find the deductions that offset your self-employment tax burden.

Home-Based Businesses

Consultants, freelancers, and e-commerce operators running businesses from Sienna Creek. Home office deductions, estimated taxes, and keeping personal and business finances separate. We make sure the IRS sees a legitimate operation.

Service Businesses

Landscapers, cleaning services, pet care, and other service providers building routes through the neighborhood. We handle the bookkeeping and tax prep so you can focus on growing the customer base instead of wrestling with QuickBooks.

Common Questions

Do you work with businesses in Sienna Creek?

Yes. We serve businesses throughout Sienna Creek, Meridian, and the broader Treasure Valley. Our office is in Nampa, just a short drive away, and we handle most work remotely for convenience.

What does monthly bookkeeping cost?

Starting at $195 per month based on your expense volume. We provide a flat monthly rate after reviewing your business so you know exactly what to expect.

Are you licensed to represent me before the IRS?

Yes. Our team includes Enrolled Agents, which means we're federally licensed to represent you directly before the IRS. If you get a notice or face an audit, we handle it.

I just started a business. Can you help me set up correctly?

Absolutely. We help new businesses choose the right entity structure, set up accounting systems, and prepare for their first tax filing. Getting it right from day one saves money down the road.

What if my books are behind?

We see this often. We clean up the backlog, get everything current, and then move to regular monthly service. No judgment about how you got there.

The Treasure Valley's Tax and Accounting Team

The Next Step:
A Short Conversation

Tell us what you're dealing with. We'll listen, answer your questions, and give you a straightforward quote.

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