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Black Hills Accounting
Bookkeeping & More

Grow your business, We’ll handle the paperwork

You deserve simple, honest accounting. We’ll handle the details so you can focus on growing your business and serving our community.

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Flexible, Upfront Pricing

We offer flat-rate pricing tailored to any budget. No surprise hourly charges or hidden fees — just steady, reliable support that scales with your business.

100% US-Based

We believe that financial clarity requires more than just processing numbers—it requires local context, shared values, and total accountability. That is why our entire team is, and always will be, 100% based in the United States.

Regional & National Support

Based in Belle Fourche South Dakota, we provide back-office services to businesses both here in the Black Hills and across the country.

Support Services

The Best Option For Your Finances

We specialize in providing comprehensive financial services tailored to meet the unique needs of our clients.

All Services

Bookkeeping

Our full-cycle bookkeeping service ensures accurate financial records through professional categorization, meticulous monthly reconciliations, and comprehensive reporting to maintain absolute clarity for your business.

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Corporate Registered Agent Service

Local South Dakota registered agent representation in Belle Fourche. We provide secure, instant digital delivery of legal notices and service of process.

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Startup Package

Professional "day one" startup assistance featuring formation support, tailored accounting setup, banking, payment processing, and streamlined back-office processes for immediate operational readiness.

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Hourly Flex-Support

Hourly Flex-Support delivers project-based bookkeeping, process analysis, and automation. It’s the perfect limited-scope solution for businesses needing technical precision and financial clarity without a full-service commitment.

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Our Team

Meet Our Team

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Aric Mackey
Owner / Bookkeeper
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Sky
Managing Pawtner
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Coming Soon
 
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Testimonials

Professional Success: Results from Real Clients

See how owners rely on our services and support to stay organized, informed, and confidently prepared for what’s next.

"Aric was phenomenal. He was immediately responsive to all of my requests, helped me clean up my books, and was flexible with the platforms I was already invested in. He completed every task--reconciling my accounts, filing my purchases, setting up new processes to keep clean books, etc--very quickly. "
A.T.
Communications Consultant
"The catch-up and clean-up service was exactly what we needed. Aric untangled old transactions, fixed errors, and organized everything so we could move forward with a fresh start and real numbers we can trust.”
E.W.
Non-Profit Director
"...my bookkeeping was always a ‘when I have time’ project that never really got done. Now, with his flat monthly service, I don’t worry about it at all. He reconciles my accounts, organizes my expenses, and sends helpful summaries each month so I can see how the business is really doing. I love that the flat monthly fee makes budgeting straightforward, and Aric’s fast response times mean I always get answers and support when I need them.”
S.D.
Contractor/Developer

Let’s Grab a Virtual Coffee and Talk Shop

Ready to get the paperwork off your plate? Schedule a quick 15-minute call or video chat. We’ll talk about your business and see if we’re the right fit to help you grow.

Informal Chat: No Pitch, Just Answers