BookkeepingNov 2025
Five signs your books are quietly falling behind
The warning flags most owners miss until tax season — and the small monthly habits that prevent every one of them.
Tan Bookkeeping
Bookkeeping · Arvada, Colorado
Clean books. Clear decisions. Room to grow.
Bookkeeping for Arvada business owners who’d rather focus on growing their business than chasing their numbers.
QuickBooks OnlineServing Arvada, COSince 2020
About
About
Tan Bookkeeping.
Tan Bookkeeping helps business owners stay on top of their finances with clean, up-to-date books — so they can focus on growing their business and making accurate financial decisions.
01
Accurate
Every transaction categorized with care.
02
Up-to-date
Books that reflect this week, not last quarter.
03
Detail-obsessed
Nothing slips through the cracks.
Services
How I can help.
Four focused services designed to hand you back your time, your peace of mind, and a set of books you can actually trust when the decisions get real.
01
Monthly Bookkeeping
Accurate transaction categorization, account reconciliation, and financial reporting to keep your books clean and current.
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Monthly Bookkeeping
Stay on top of every dollar with meticulous monthly bookkeeping. I categorize transactions, reconcile bank and credit card accounts, and produce clear financial reports so you always know where your business stands. From profit-and-loss statements to balance sheets, you'll have organized data for confident decisions and a stress-free tax season.
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02
Clean-ups & Catch-up
Behind on your books? I specialize in bringing accounts up to date quickly and accurately.
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Clean-ups & Catch-up
If your records have fallen behind, I'll step in to sort the chaos. I review past transactions, reconcile neglected accounts, and rebuild your books so they reflect the real story of your business. Whether it's months or years of catch-up, the goal is a clean, reliable foundation you can finally trust.
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03
Payroll Support
Simple, reliable payroll solutions to ensure your team is paid correctly and on time.
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Payroll Support
Payroll should be predictable, not stressful. I help set up and manage payroll workflows that keep your team paid accurately and on schedule while staying compliant with tax withholdings and filing requirements. From direct deposits to quarterly reports, I handle the details so you can focus on running your team.
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04
QuickBooks Online
As a cloud-based QuickBooks Online specialist, I help Arvada business owners set up and optimize their bookkeeping systems for efficiency and accuracy.
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QuickBooks Online
Get the most out of QuickBooks Online with a setup tailored to your business. I configure chart of accounts, bank feeds, rules, and reporting workflows so your cloud books stay accurate in real time. Training and ongoing support are included, empowering you to use the platform with clarity and confidence.
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The Owner
Meet Debora.
My name is Debora and I’m a bookkeeper based in Arvada, Colorado.
My background started in administrative work and I’ve been in that line for about ten years now between various industries — non-profit, IT, education, real estate and marketing. I enjoy the “paperwork” aspect of admin work and being detailed is in my nature. I love working with data, and since bookkeeping is a combination of the two skills, I decided to expand my skillset.
Originally from Singapore, I spent half my childhood in Thailand and moved back to Singapore to finish my studies. I moved to Colorado in 2015 and I currently live in Arvada.
Testimonials
What clients say.
Small business owners across Colorado who traded the spreadsheet stress for books that just work.
Journal
From the blog.
Straightforward notes on bookkeeping, QuickBooks, and running a small business without the spreadsheet dread.
QuickBooksOct 2025
Setting up QuickBooks Online the right way, once
A calm, opinionated guide to a chart of accounts that will still make sense in three years.
Small BusinessSep 2025
How to read a P&L without your eyes glazing over
The three numbers that actually matter each month, and how to use them to price with confidence.
Contact