Key takeaways
- Most home service businesses start as one-person operations, so good habits on day one prevent years of messy books[1].
- Build the chart of accounts around your service lines, with field labor and materials in cost of goods sold, so the P&L shows gross margin by line.
- Treat customer deposits as a liability until the work is done and truck stock as inventory until it is used on a job.
- Close every month within ten working days with the same checklist, and keep records for at least the periods the IRS sets[2].
Start clean, because most trades start small
Home service businesses overwhelmingly begin as one person with a truck. In 2023 the US had 1,095,927 janitorial and cleaning businesses with no paid employees, against 67,799 cleaning establishments with employees, about 16 to 1[1][3]. There were 516,572 landscaping nonemployer businesses and 178,663 in plumbing, heating and air conditioning[1]. The owner of each one is also the bookkeeper, at least at first, and often on a small budget: the average cleaning nonemployer business took in about $20,785 in receipts in 2023[4].
The habits set in that first year tend to stay. Mixing personal and business spending, recording deposits as income and buying parts with whatever card is handy all seem harmless when the business is small. They become expensive the year you hire, apply for a loan or try to work out which jobs make money. Good bookkeeping is not about the software; it is about recording each transaction once, in the right place, at the time it happens.
The foundations
- Open a separate business checking account and a business credit card, and use them only for the business. Pay yourself by transfer, never by spending business money directly.
- Choose cash or accrual accounting with your accountant. Accrual, which records revenue when invoiced and costs when incurred, gives a truer monthly picture once you have commercial accounts or installs that span months.
- Connect bank and card feeds to your accounting software, but review and categorize every transaction rather than accepting suggested categories blindly.
- Make your field software and accounting software agree on customers, service lines and tax settings, so invoices sync cleanly.
- Keep receipts digitally: photograph them on the day, attach them to the transaction and stop keeping shoeboxes.
A chart of accounts built for service work
The chart of accounts is the list of categories your transactions go into. A generic one from accounting software lumps everything into a few lines and hides the information you need. Restructure it into these groups:
| Group | Accounts to include | Why |
|---|---|---|
| Income | One account per service line: service and repair, maintenance plans, replacement or install, commercial, other | Shows revenue mix and lets you calculate margin by line |
| Cost of goods sold | Field labor, field payroll taxes and benefits, materials and parts, subcontractors, permits, equipment rental, warranty and callbacks | Produces a true gross margin |
| Operating expenses | Office wages, rent, utilities, software, phones, insurance, marketing by channel, professional fees, office vehicles, bank and card fees | Overhead you review quarterly |
| Current assets | Operating account, payroll account, accounts receivable, truck and warehouse inventory, prepaid insurance | What you own that turns into cash soon |
| Fixed assets | Vehicles, equipment, tools above your capitalization threshold, accumulated depreciation | Long-lived assets and their wear |
| Liabilities | Accounts payable, credit cards, customer deposits, sales tax payable, payroll liabilities, loans and leases | What you owe, including work you have been paid for but not yet done |
Then add sub-accounts only where your trade needs them. An HVAC company may split materials into equipment and parts and track refrigerant separately. A roofer may track disposal and dumpsters separately from materials. A pest control or lawn care company may track products and chemicals by type for licensing and use records. A cleaning company may track supplies separately from equipment. Keep the list short: if an account has had no activity for a year, merge it.
Deposits, truck stock and other tricky items
Customer deposits are not income when you receive them. They are money you owe the customer in work. Record them in a customer deposits liability account and move them to income when the job is invoiced. Otherwise a busy booking month looks hugely profitable and the month the work is done looks like a loss.
Truck stock and warehouse inventory work the same way in reverse. Parts you buy to stock trucks are an asset until they are used on a job; then they become cost of goods sold for that job. If you expense every stock purchase immediately, your margin swings with your buying pattern rather than your work. A simple approach is to count truck stock quarterly and adjust the inventory account to the count.
Sales tax rules on labor and materials vary by state and sometimes by city, and repair work may be treated differently from new installation. Set the tax rules in your invoicing software with your accountant, record collected tax in a liability account and never count it as revenue. Payroll liabilities, the taxes withheld from employees and the employer's share, also sit in a liability account until deposited.
The monthly close checklist
Reconcile every bank and card account
Match the books to the statements for each account. Investigate any difference, however small, before moving on.
Review uncategorized and suspense items
Clear every transaction sitting in uncategorized income or expense. These hide errors.
Match invoices and payments
Apply every customer payment to the right invoice, so the AR aging is accurate. Review the aging for anything odd.
Enter all supplier bills for the month
Chase missing bills from suppliers so costs land in the month the work was done.
Move deposits for completed work
Transfer deposits from the liability account to income for jobs invoiced in the month.
Record payroll correctly
Split field and office wages and their taxes into cost of goods sold and overhead.
Post depreciation and prepaid items
Record monthly depreciation and the month's share of prepaid insurance.
Review the P&L and balance sheet
Compare with last month and the same month last year. Ask about any line that moved sharply.
Lock the period
Close the month in your software so nobody changes it without a deliberate reopen.
Aim to finish within ten working days of month end. A close that drifts to six weeks makes every decision late. Once the books are closed, the reports feed directly into reading your P&L and balance sheet, your AR follow-up and your 13-week cash flow forecast.
Weekly habits between closes
A fast monthly close depends on what happens during the month. Set aside a fixed half hour each week for the small jobs that otherwise pile up.
- Categorize the week's bank and card transactions while you still remember what each one was.
- Attach receipts that techs photographed in the field, and chase the ones that are missing.
- Enter supplier bills as they arrive rather than in a stack at month end.
- Apply customer payments to invoices, including card and online payments that settle as one batch deposit.
- Note any unusual item, such as a refund, an insurance payout or a vehicle sale, for the bookkeeper to handle correctly.
These habits turn the close from a two-week reconstruction into a review, and they keep the numbers current enough to trust in the middle of the month.
How long to keep records
The IRS says to keep records for 3 years in most situations, employment tax records for at least 4 years after the tax is due or paid, records for 6 years if you fail to report income that is more than 25% of the gross income shown on your return, and records for 7 years if you claim a loss from worthless securities or a bad debt deduction[2]. Lenders, insurers, state licensing boards and buyers may want longer histories, so many companies simply keep seven years of everything in digital form.
Keep the supporting documents, not just the reports: invoices, receipts, payroll records, bank statements, loan documents and vehicle logs. Store them in a cloud folder organized by year and month, with the accounting file backed up separately.
Example: fixing a year of mixed-up books
Example (fictional): a two-crew handyman company has been recording all customer payments as income and all purchases as supplies. The owner thinks the business made $140,000 last year, but the bank balance does not support it. A bookkeeper rebuilds the year.
Example findings: $18,000 of deposits for kitchen and bath jobs not yet started were counted as income; $12,000 of December supplier bills were never entered; $9,500 of truck stock bought in December was expensed although it was still on the trucks; and $11,000 of personal spending was recorded as supplies. Moving deposits to a liability, entering the missing bills, putting stock back into inventory and recording personal spending as owner draws gives a true profit of $130,500, and the draws that explain the low bank balance are finally visible.
Example change: the company now splits income into repair, small project and maintenance accounts. In the first quarter after the clean-up, the owner sees that small projects earn a much lower gross margin than repairs and adjusts how they are quoted.
When to hire help
Doing your own books is reasonable when you have one truck and simple work. Hire a bookkeeper with trade experience when you add employees, take deposits on larger jobs, open commercial accounts or find the close slipping past the middle of the next month. Ask candidates how they handle deposits, truck stock, job costing and sales tax for your trade; their answers tell you quickly whether they have done this before.
Clean books pay off well beyond tax time. They are what a lender reviews, what a buyer examines when you value the business, and what gives you the confidence to raise prices when the numbers show you need to.
Frequently asked questions
Cash or accrual: which should a contractor use?
Ask your accountant about tax rules, but for managing the business accrual gives a truer monthly picture once you have commercial accounts, deposits or jobs that span months. Many small companies keep cash basis for tax and review accrual reports internally.
How do I record a customer deposit?
Record it in a customer deposits liability account when received. When the job is invoiced, apply the deposit to the invoice so it moves into income.
Do I need separate accounts for each truck?
Usually not in the chart of accounts. Use classes, locations or tags in your software to track costs by truck or crew, and keep the main account list short.
References
U.S. Census Bureau (2023). Nonemployer Statistics 2023: U.S. file (nonemp23us) (opens in a new tab) ↑
Internal Revenue Service (2026). How long should I keep records? (opens in a new tab) ↑
U.S. Census Bureau (2023). County Business Patterns 2023: U.S. detail file (cbp23us) (opens in a new tab) ↑
U.S. Census Bureau (2023). Nonemployer Statistics 2023: U.S. file (nonemp23us), cleaning receipts (opens in a new tab) ↑