San Diego County Bookkeeper Talk to a bookkeeper

Short answer: Construction bookkeeping in San Diego codes materials, labor and subcontractor costs to each job, records progress billings and change orders, and tracks retention you are owed on the balance sheet. Subcontractor W-9s are collected up front, California independent contractor reports are flagged on time, and year-end forms are ready for your CPA.

Where contractor books fall apart

Picture a remodeler with an ADU in Clairemont, a kitchen in Escondido and a deck job in Chula Vista running at the same time. The supply house account covers all three. One crew moves between jobs during the week. The customer on the ADU paid a deposit before permits came through.

By month end, the bank balance looks healthy. But part of that cash is the ADU deposit for work not done yet, part is retention you will not see for months, and one job is quietly over budget. Books kept by vendor instead of by job cannot show any of this.

What construction books track

  • Every material purchase, sub invoice and labor hour coded to a job
  • Estimates compared to actual cost by job, so overruns show up while the job is open
  • Progress billings that follow the contract, including approved change orders
  • Retention receivable and retention payable on the balance sheet
  • Customer deposits held as a liability until the work is earned
  • Vehicles, tools and equipment recorded as assets with their loans
  • Each supply house account reconciled monthly against its statement

Subcontractors and California reporting

Every sub should give you a W-9 before the first payment. That gives you the legal name and tax ID needed for year-end 1099 forms, which your CPA or payroll provider files.

California adds a step many small contractors miss. The Employment Development Department requires businesses to report independent contractors on Form DE 542 within 20 days of paying them, or signing a contract with them, for $600 or more. The bookkeeper flags new subs as they appear in the books, so the report is made on time.

Licensing and small jobs

Most construction work in California requires a license from the Contractors State License Board. Starting January 1, 2025, the minor work exemption covers jobs under $1,000 in combined labor and materials, as long as no permit is needed and no workers are hired. Job-level records make it easy to show what each contract really covered.

Inside the City of San Diego, a contractor also needs a Business Tax Certificate from the City Treasurer, including home-based and self-employed operators.

Work in progress and cash flow

On longer jobs, billing and cost do not move together. You may have billed ahead of the work, or done work you have not billed yet. A simple work in progress schedule each month compares percent complete to percent billed for every open job. It tells you where cash is tied up and which customers to invoice now.

Bonding companies and lenders often ask for this schedule, along with a balance sheet and P&L. Books closed monthly make that request a quick export.

How the work runs

  1. Set up jobs Each job gets a project with its estimate, contract value and retention terms.
  2. Code costs Bills, card charges and payroll are coded to jobs each week or month.
  3. Bill and reconcile Progress invoices go out on schedule, and every bank and card account is matched to its statement.
  4. Report You get job profit, a work in progress summary and a monthly P&L and balance sheet.

Signs your construction books need work

  • Job profit is a guess until the job is long finished
  • Customer deposits are recorded as income on day one
  • Retention lives in a notebook
  • Subs were paid by Zelle with no W-9 on file
  • Supply house statements have never been reconciled

Construction by city

Where we work

We keep books for businesses across the City of San Diego, North County, the South Bay and East County.

Questions

Do you work in QuickBooks, Xero and more for job costing?

Both. QuickBooks Online projects and Xero tracking categories handle job costing well for most small and mid-size contractors.

Can you handle certified payroll?

Payroll and certified payroll reports stay with your payroll provider. The books record payroll by job so labor cost is accurate.

We are a year behind on our books. Where do we start?

Catch-up bookkeeping rebuilds past months from bank and card statements, then codes costs to jobs where records allow.

Sources

Talk to a bookkeeper

Tell us where your books stand. A bookkeeper reads it and replies to set up a short call.

  • No cost to ask.
  • You get a real person, not a sales sequence.
  • One month behind or three years behind, the first call is the same.