Small business bookkeeping, with personality.
Flat-Fee bookkeeping and individual tax solutions for small businesses, sole proprietors and employees.
Family-owned & operated with a total satisfaction guarantee.
Effortless Bookkeeping, Backed by Systems That Work
Stay in control without leaving your desk—or your vacation. With automated reminders, fast response times, and a reliable team structure, we make it easy to keep your business running smoothly, no matter what. At Castle, your numbers are always in good hands.
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Real-time reporting
Uderstanding your finances is simpler than ever with customized, streamlined reports designed for you

Hassle-free bookkeeping
Submit your receipts while simultaneously sipping a margarita or riding the bus. The flexibility is yours to enjoy.
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Service with a smile
We prioritize lasting partnerships, ensuring our clients stay happy and stress-free as their businesses thrive.
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E-commerce Accounting & Bookkeeping
We provide the financial tools your e-commerce business needs. Whether you use Shopify, Square, or Stripe, partnering with us ensures stress-free, seamless management of your e-commerce accounting.
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Small Business
GST, PST, receipts, and remittances—a jumble of letters that often spells stress.But it doesn’t have to. With years of experience managing bookkeeping for small businesses in Canada, we’re here to take the numbers off your plate, so you can dive into everything you love about running your business.

Income Tax Preparation
You’re busy, so we simplify your tax return process. File your taxes anytime, anywhere—whether it’s 2 a.m. after work or while relaxing on a beach vacation. All you need is an internet connection and an email address, and we’ll securely take care of everything else.
Feeling like your back is against the wall?
Let us handle the numbers so you can get back to business.
Sole Proprietors
E-Commerce options start at $250/mo.




Sole Proprietors
E-Commerce options start at $250/mo.
Corporation
Corporation
E-Commerce plans begin at $500/month




Corporation+




Corporation+
E-commerce starts at $675/month.
Basic + Rental Income
Basic + Rental Income
Business Basic
Business Basic
Self-employed with an income of 10k annually or less,
Submitting limited tax forms including T4, medical reciepts and donations.
Business Plus
Business Plus
Operating a small business as a sole proprietor,
Need to file a GST return, submitting tax forms including T2125s and receipts.
Need a basic personal tax return? If you’ve got 5 or fewer slips and simplified expenses, we can help. We’ll get you a quote right away — quick, clear, and hassle-free.
Steps to working with Castle.
Getting started with Castle is simple and stress-free. We’ll walk you through a clear, streamlined setup so you know exactly what to expect. From the first call to ongoing support, we make sure everything is handled professionally, digitally, and with your time in mind.
Step 1

Getting to know you
Start by completing a quick intake form so we can learn about your business and bookkeeping needs.
Step 2

Diving into the details
We’ll review your form and ask any questions to make sure we fully understand your needs.
Step 3

Putting it on paper
With the info you’ve given us, we’ll put together a bookkeeping service plan and price quote.
Step 3

Making it official
If everything looks good, you’ll sign off on the plan and we’ll set up a call with you to get your bookkeeping started.

You've got questions. We've got answers.
Answers to common questions about our services, billing, and how we work.



Text us with any questions
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How we roll!
In the office, we wield bookkeeping powers, but heroes need fun too! Outside work, we explore Calgary’s best spots. Check out our latest adventure pics—we’re not only teammates, but true friends as well!