Most people treat bookkeeping as something done for their tax return. They compile their receipts, upload the folder during tax season, and we turn it into a filing.

That's backwards. By the time we sit down with your books in March, the year has been over for months, and the decisions that would have changed the outcome were made back when taxes weren't on your mind. When bookkeeping is done well, it's not simply a record of what happened, but rather the information that lets you make those decisions while you still can.

We're seven months into 2026, and the September 15 deadline for third-quarter estimates is about six weeks out. There's still enough of the year ahead to act on what your books are telling you.

You can see what you owe before it becomes a surprise

If your books are current, working out that September payment is a short conversation. If they aren't, you're estimating from last year's numbers and relying on hope that the business behaved the same way. This is rarely the case.

There is a defined target rather than a guess, but it isn't one number. The safe harbor works installment by installment rather than annually, New Jersey's test differs from the federal one, and which applies depends on your prior-year income. We've written that up separately. What matters here is that the calculation takes minutes when your books are current and hours when they aren't.

Book net income isn't taxable income either -- depreciation, owner health insurance, and nondeductible items sit in between. The books are the input, not the answer, and without them nothing starts.

Guessing high means handing the government money you could have been using for months. Guessing low can mean a penalty on top of the tax.

You can see which parts of the business make money

This is the part most owners are missing, and it has nothing to do with taxes.

Most business owners have a good instinct for revenue. It's much harder to develop an instinct for margin, because margin isn't something you feel. It only shows up when expenses are categorized consistently enough to compare one month against another, and, if you want to compare one service or one customer against another, when the work is tagged as it happens by class, job, or project. That's a setup decision, which is why it's worth making now rather than in January.

Once it's in place, the questions you couldn't previously answer start having answers. Which services actually earn the hours you put into them. Which customers cost more to serve than they pay. Whether a past price increase held, or quietly got discounted away.

None of that is tax-related, yet it's the reason bookkeeping would still be worth doing even if you never had to file a return.

S-corp owners: reasonable compensation is a mid-year problem

If you've elected S-corp treatment, your salary needs to be defensible and it needs to run through payroll. Owners who leave this until December end up compressing a year of compensation into one lump payroll run. The cash has to be there all at once, you've lost the chance to adjust as the year's profitability actually developed, and any correction to W-2s or the fourth-quarter 941 happens on a deadline instead of on a schedule.

There is no statutory percentage here, whatever you may have read. The standard is what's reasonable for the work actually performed, and it gets tested on facts: duties, hours, experience, and what comparable positions pay.

Five months of payroll periods remain. Reviewing profitability now is the difference between a planned salary and a year-end scramble.

Contractors are easier to sort out now than in January

The W-9 belongs before the first payment, not before the 1099. It is the step immediately after you've determined someone is a contractor, and the reason is backup withholding: on reportable payments to someone with no valid taxpayer identification number on file, you are the one who has to withhold and remit. Waiting until January also means chasing people who no longer have a reason to answer.

The threshold changed this year, and that is a reason to be more careful rather than less. For 2026 payments the federal 1099-NEC reporting threshold rose from $600 to $2,000. New Jersey has not matched it: the state threshold is $1,000, or any amount from which New Jersey tax was withheld. You also won't know at the first payment whether a vendor will cross either line by year end. Collect the W-9 up front and track every dollar, and the thresholds take care of themselves.

The same logic applies to whether anyone you're treating as a contractor should be classified as one. For unemployment and wage-hour purposes, New Jersey uses the ABC test: a worker is presumed an employee unless all three prongs are met, and the burden sits on you. It is stricter than the federal common-law test, and separate from the reporting thresholds above -- an arrangement can be fine for 1099 purposes and still fail here. That conversation costs far less now than after a year of payments has gone out the door.

What "current" actually means

You don't need a full-time bookkeeper to be in decent shape. For most small businesses it comes down to five things:

  • Separation. Business money moves through business accounts. Contributions and draws cross that line deliberately and get recorded as such; it is the undocumented mixing that makes everything else harder.
  • Monthly reconciliation. Bank and card statements matched against the books each month, so mistakes surface while they're small and while you still remember the transaction.
  • Documentation at the time. Amount, date, and business purpose, captured while you still know what the purpose was.
  • A balance sheet that makes sense. This is the one people skip. Undeposited funds that never cleared, a loan balance gone negative, payroll liabilities that don't tie to what you filed. None of it appears on a profit and loss statement, and all of it becomes work later.
  • Reports you actually read. A profit and loss statement nobody opens is just filing. Ten minutes a month is enough to notice when something has drifted.

The payoff isn't tidiness. It's that we can give you a real answer while the year is still open, instead of an explanation after it has closed.

If you're behind

Don't try to fix seven months tonight. But there is a right order, and it isn't the intuitive one.

Get current activity right first. Capture and categorize what's happening now, so the problem stops growing. Then reconcile forward from the last month you actually trust, in sequence. You can't reconcile August while March through July hold unverified balances, because August's opening balance depends on them. Working backward can bury duplicates and force adjusting entries that conceal the original error instead of finding it.

Waiting costs more, for a plain reason: reconstructing a transaction takes longer than recording one did, and it gets harder as the trail goes cold.

If you'd like a second set of eyes on where things stand before the September 15 estimate comes due, get in touch. It's a better conversation to have now than the one we'd otherwise be having in the spring.

Related reading: Bookkeeping services | Catch-Up vs. Cleanup Bookkeeping | Separating business and personal finances | Contact

Gregory Monaco, CPA LLC -- tax and accounting for New Jersey small businesses. This post is general information, not advice for your specific situation.