Stay Current Each Month
Ongoing bookkeeping and account reconciliation so each month closes on a schedule instead of in a rush.
Serving San Francisco and the Greater Bay Area
Bookkeeping for San Francisco Businesses Built From Many Moving Parts—and One Set of Numbers That Has to Reconcile.
Custom One organizes the transaction-level detail behind busy Bay Area businesses so owners can close each month cleanly, understand what happened, and make the next decision from reliable books.
Built around the business
Your Books Should Reflect How the Business Actually Works.
A customized bookkeeping relationship starts with understanding how a company earns revenue, pays its vendors, manages expenses, receives payments, and finishes each month. Those details differ from one business to the next, and a chart of accounts copied from a template rarely describes any of them well.
Custom One begins with the mechanics: which systems produce transactions, where money actually lands, which accounts have to agree, and what the owner needs to see when the month is done. The result is one coordinated record — not a generic, one-size-fits-all file that only makes sense at tax time.
The name means exactly that. Customized systems, and one set of numbers that reconciles.
Books assessment
Where Are Your Books Right Now?
Pick the description closest to your situation. Each one shows a general next step — not a promised outcome or a quoted scope of work.
Select a statement to see a recommended next step.
The monthly cycle
The Custom One Close
A month closes in a repeatable sequence. Each stage has a clear hand-off, so nothing is discovered for the first time at tax time.
- 01
Collect
Gather transactions and supporting information securely.
- 02
Categorize
Apply consistent treatment to business activity.
- 03
Reconcile
Match accounts and investigate unresolved differences.
- 04
Review
Check the books for completeness and irregularities.
- 05
Report
Deliver understandable financial information.
- 06
Clarify
Resolve questions and prepare for the next month.
This framework is provisional and shown as an illustration of a standard monthly close. It will be replaced with Custom One's actual workflow once the firm confirms it.
Service paths
Start From the Outcome You Need.
Repair Books That Fell Behind
Catch-up and cleanup bookkeeping for open months, inconsistent categories, and records that stopped matching.
See the Business More Clearly
Financial statements and management reporting presented so the numbers describe how the business actually ran.
Keep Money Moving Properly
Accounts payable, invoicing, or receivables support, if offered.
Shown only if confirmed by the firm
Prepare Records for Tax Time
Organized year-end books and coordination with the client's own tax professional.
Improve the Bookkeeping System
QuickBooks or cloud-accounting setup, cleanup, and workflow support, if confirmed.
Shown only if confirmed by the firm
Pending confirmationPayroll, tax preparation, CFO, advisory, and software services are not offered on this site and will not be published unless Custom One verifies them.
Who Custom One helps
Businesses at the Point Where Spreadsheets Stop Working.
Custom One works by business stage rather than by industry label, so the approach fits where a company is right now.
Pending confirmationIndustry specializations are intentionally not claimed. Any niche focus will be added once the firm confirms it.
- New businesses creating their first reliable system
- Owner-operated businesses moving beyond DIY bookkeeping
- Established companies with backlogged or inconsistent books
- Growing teams requiring a repeatable monthly close
- Businesses coordinating bookkeeping with an outside tax professional
Reserved for an authentic, approved photograph of Lian Yuan. No artificial or stock image of a person is used here.
Meet Lian Yuan
A Bookkeeping Relationship Should Leave Room for Questions.
Good bookkeeping is not only accurate — it is explainable. The point of a monthly close is that an owner can ask why a number moved and get a straight answer supported by the underlying detail.
This section is reserved for Lian Yuan's approved profile: current role, professional background, bookkeeping experience, software knowledge, client-service philosophy, languages spoken, connection to San Francisco, and why Custom One was established.
Pending confirmationNo biography, title, credential, or role is published here until Custom One approves the wording. Lian is not described as founder, owner, CPA, EA, or principal without confirmation, and team size is not advertised before verification.
One clear monthly view
Everything From the Month, Held in One Record.
Explore what a finished month can look like when the detail is organized and the open items are visible rather than buried.
| Service revenue | $84,200 | +6.1% |
|---|---|---|
| Product revenue | $21,750 | -2.4% |
| Cost of services | $32,410 | +3.0% |
| Operating expenses | $28,905 | +1.2% |
| Net income | $44,635 | +8.7% |
Visual illustration only. All figures are fictional demonstration data and this is not a depiction of Custom One's actual software platform or any client's records.
Local identity
San Francisco Runs on Businesses That Never Make the Postcard.
Corner grocers, dry cleaners, studios, contractors, clinics, and restaurants along the avenues and side streets. Their books are rarely simple: multiple payment processors, mixed deposits, seasonal swings, and vendors paid every way there is.
Bring the Activity Into One Record You Can Trust.
Start with the current state of your books, the systems you use, and what you need to understand more clearly.
Contact Custom One