(720) 333-7274 Mon–Thu 8–4, Fri 8–12 MT · Castle Rock, CO
5.0 from 8 Google reviews

Small business bookkeeping in Denver — clean books, every month.

Monthly reconciliation, A/P and A/R, and a P&L you can actually use to run the business. Most clients are caught up and on a clean monthly cadence within three weeks.

Get a bookkeeping quote

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What "clean books" actually means

Most small business owners we meet think their books are fine until we open them. The accounts technically reconcile, but the chart of accounts has 40 categories nobody recognizes, half the transactions are coded to "Ask My Accountant," and the P&L doesn't match what the bank actually shows. That isn't bookkeeping — that's bookkeeping theater.

We deliver something different: every account reconciled to the statement, every transaction categorized to a chart of accounts that makes sense for your industry, and a month-end financial package you can hand to a lender, an investor, or the IRS without a second thought. Three things drive the difference:

  • A real reconciliation, not a software click. QuickBooks "matched" doesn't mean reconciled. We tie out beginning balance, in-period activity, and ending balance to the actual statement.
  • An industry-specific chart of accounts. A roofer's COA is not a marketing agency's. We rebuild yours to match how your business actually makes money.
  • A short close note every month. Two paragraphs explaining anything we caught — a duplicate vendor charge, a margin shift, a tax-deduction we want to capture before year-end.

What's included in monthly bookkeeping

Included every month Available as add-on
Bank & credit card reconciliation (all accounts) Accounts payable / bill pay
Transaction categorization Accounts receivable / invoicing
Month-end P&L and balance sheet Sales-tax filing
Sales-tax tracking 1099 prep and filing
Year-end tax-prep handoff CFO / advisory calls (monthly or quarterly)
Direct email + phone access to your bookkeeper Job costing (for trades and contractors)
Field note from a 2025 cleanup

A landscaping client we onboarded had been on QuickBooks for five years. Their books said they were profitable. After reconciliation we found $31,000 in duplicate vendor entries over 18 months — bills that had been entered twice from the email PDF and the paper copy. Their actual margin was 14 points lower than they thought. That's the difference between bookkeeping theater and a real close.

How pricing works

We bill hourly, based on the actual work your books require — transaction volume and the number of accounts you run. We agree on an estimate before we start. Most engagements land in these typical monthly ranges:

Business size Typical transactions/mo Typical monthly cost
Solo / side business Under 50 $250 – $400
Small service business (1–5 employees) 50 – 250 $400 – $750
Established small business (6–25 employees) 250 – 800 $750 – $1,200
Multi-entity / multi-state Varies Custom quote

How to know if you should outsource

If any of the following sound familiar, outsourced bookkeeping pays for itself the first month:

  • You haven't reconciled bank accounts in more than 60 days.
  • Your tax preparer charges extra at year-end to clean up the books before they can file.
  • You can't tell whether last month was profitable without "doing some math."
  • You're spending Sunday nights on QuickBooks instead of running your business.
  • You missed a sales-tax filing or a 1099 deadline in the last 12 months.
If / Then

If you're a sole proprietor with under 50 transactions a month and no employees, a quarterly cleanup is usually enough.
If you have employees, inventory, or you bill clients on net-30 terms, monthly bookkeeping is the right move.
If you're already 6+ months behind, start with a catch-up engagement — we'll give you an estimate for the one-time cleanup.

How onboarding works

Most clients are on a clean monthly cadence within 21 days. The schedule looks like this:

  1. Week 0 — Discovery call. 30 minutes. We learn your business, your software, your pain points. You get a proposal with an up-front estimate within one business day.
  2. Week 1 — Software access & chart-of-accounts review. We get accountant access to QuickBooks Online, review your COA, and flag anything that needs restructuring.
  3. Week 2 — Catch-up reconciliation. If you're behind, we close out prior periods. You get a clean P&L and balance sheet.
  4. Week 3 — Monthly cadence begins. First close runs. You get the financial package and a close note. Quarterly tax planning is layered in.
The Bottom Line

Clean books, every month, with someone who picks up the phone.

For most small businesses we serve, monthly bookkeeping costs less per year than one botched IRS notice — and gives you a real P&L every month to make decisions on. Get a quote in under a day.

Frequently asked questions

How much does bookkeeping cost per month?

We bill hourly based on the actual work your books require. Most small businesses we serve spend $250–$1,200/month, depending on transaction volume, number of accounts, and whether you need A/P or A/R management. We give you an estimate after a 30-minute discovery call.

What accounting software do you work in?

We work in QuickBooks Online for nearly every client, and Shopify for eCommerce sellers. If you're not already on QuickBooks Online, we'll help you move your books over as part of onboarding so everything lives in one place.

What's actually included?

Bank and credit card reconciliation for every account, transaction categorization, month-end P&L and balance sheet, sales-tax tracking if applicable, and a short note from us on anything unusual. A/P, A/R, and 1099s are common add-ons.

How fast can you catch up old books?

A 12-month catch-up for a small service business typically takes 2–4 weeks once we have bank and credit card statements. Multi-year catch-ups take longer — we give you an estimate up front based on transaction count.

Will my bookkeeper change every quarter?

No. You work directly with Kali and a small team. Several of our clients have been with us 10+ years with the same point of contact.

Reviewed by

Kali Gilliland · Founder & Lead Accountant

Kali Gilliland is the founder of TBA & Associates and has spent more than a decade serving small businesses across the Denver metro and Colorado Springs corridor. She handles everything from monthly bookkeeping to multi-state tax planning, with a long-term client roster that goes back 10+ years.

Ready for an accountant who picks up the phone?

Get a quote in under 24 hours. No long contracts, no jargon — just clean books and honest tax planning from a Denver-area firm trusted by small businesses for more than a decade.