Payroll is three different things at once
The check that lands in an employee's account is the part everyone sees, but it's the smallest part of what payroll does to your books. A single payroll run touches an expense (the cost of the labor), several liabilities (money you've taken from employees or owe the government but haven't paid yet), and finally cash when those obligations get paid. Treat payroll as one lump "wages paid" number and you'll understate your real labor cost, lose track of taxes you're holding in trust, and end up with a P&L you can't trust. This guide explains what each piece is and where it lands — so payroll stops being a black box. (General education, not tax, payroll, or accounting advice.)
Gross pay is the real cost, not net pay
The first thing to get straight: your labor expense is gross pay — the full amount an employee earns before anything is taken out — not the smaller net amount that actually leaves your account. The difference between gross and net doesn't disappear; it's money you withhold from the employee and forward to someone else on their behalf. So a $5,000 gross payroll where employees take home $3,800 still costs your business $5,000 in wage expense (plus employer taxes, below). The $1,200 gap isn't a saving — it's a liability you're holding temporarily.
This is the same earned-versus-paid distinction that runs through accrual accounting: the expense is the work performed, regardless of how the cash splits up on its way out.
The withholdings you hold in trust
When you run payroll, you withhold several amounts from each employee's gross pay. Critically, this money is not yours — you're holding it on the employee's behalf to remit to the government or a benefits provider. Until you pay it over, it sits on your balance sheet as a liability, typically grouped as "payroll liabilities" in your chart of accounts:
- Employee income tax withholding — amounts withheld and owed to federal and (where applicable) state tax authorities.
- The employee's share of payroll taxes — the portion of social-insurance-type payroll taxes withheld from their pay.
- Voluntary deductions — the employee's share of health premiums, retirement contributions, garnishments, and similar.
The mental model that prevents the most common payroll mistake: withheld money is borrowed, not earned. It increases your cash for a few days or weeks, then leaves again when you remit it. Spending it because it's sitting in the account is how businesses fall behind on payroll-tax deposits — one of the few bookkeeping errors that carries serious personal-liability risk for owners.
The employer taxes you owe on top
Beyond what you withhold from employees, you as the employer owe additional payroll taxes calculated on their wages — your matching share of social-insurance taxes plus unemployment taxes, depending on your jurisdiction. This is a genuine extra expense to the business, over and above gross wages, and it's the reason the true cost of an employee is meaningfully higher than their salary. In your books it shows up as a payroll-tax expense on the P&L and a matching payroll-tax liability on the balance sheet until you pay it.
What a payroll run does to your accounts
Put it together and a single payroll run posts in three layers. Software does the double-entry for you, but here's what's happening underneath for a simplified run:
- Record the expense and the liabilities. Debit Wages Expense for the full gross pay. Credit Cash (or "net payroll payable") for the net amount employees actually receive, and credit the various payroll liability accounts for everything withheld. Gross out, net plus withholdings — it balances.
- Record the employer's own taxes. Debit Payroll Tax Expense for the employer share, credit the matching payroll-tax liability. This is the extra cost that makes an employee cost more than their salary.
- Remit the liabilities later. When you actually pay the tax authorities and benefit providers, you debit the payroll liability accounts (clearing them) and credit Cash. The liability you were holding in trust finally leaves.
The key insight: steps 1 and 2 happen on payday, but step 3 happens later — which is exactly why those liabilities exist, and why the cash to cover them needs to be in your cash-flow forecast as a known future outflow, not a surprise.
Contractors are not payroll
A frequent source of mess is running contractor payments through payroll thinking, or vice versa. A genuine independent contractor has no withholding and no employer payroll tax — you pay the agreed amount and report it separately at year-end. The accounting, the tax treatment, and the legal exposure are entirely different, which is why contractor payments and 1099 bookkeeping deserve their own clean account, kept distinct from employee payroll. And paying yourself is different again: in a pass-through that's usually an owner's draw against equity, not payroll at all.
What to actually watch
You don't hand-calculate payroll — software or a payroll provider handles the math and the filings. What matters is reading what it produces:
- Are payroll-tax liabilities clearing on schedule? A liability balance that keeps growing instead of dropping to zero after each remittance means deposits are being missed. Catch it in your month-end close.
- Is the full cost in your P&L? Gross wages and employer payroll taxes are your real labor cost. Budgeting off net pay understates it badly.
- Is the cash reserved? Withheld and employer taxes are owed money sitting in your account temporarily. Treating that balance as spendable is the classic trap.
Record payroll as what it really is — an expense, a stack of liabilities held in trust, and a cash payment that comes in waves — and it stops distorting your numbers. Hosting Books posts the expense, the withholdings, and the employer taxes to the right accounts automatically, so your labor cost shows up in full on the P&L and the taxes you're holding stay visible as liabilities until they're paid.
This article is general educational information about payroll accounting concepts and is not tax, payroll, or accounting advice for your specific situation.