A cash balance you never check against the bank can be wrong, and nothing on the page tells you so. The notebook or the spreadsheet holds only what a hand wrote into it, while the account moved on its own for a fee, a card charge, a check that never cleared. The bank kept its own record of the same money. Reconciling is the single pass that sets the two side by side for one closed month, so the difference between them stops being invisible and becomes a number you can act on.
The difference hides well, because the running total still looks right at the bottom of the page. A balance kept by hand is only as complete as the hand that wrote it, and the fee nobody entered is not on it.
Why can a balance you keep carefully still be wrong?
A carefully kept balance can still be wrong because it is one record built from one side. Every line in the notebook is a line someone chose to write, and the balance is the running total of those lines, what Mississippi State University describes as a record of all cash inflows and outflows that occur throughout the accounting period. The account, meanwhile, holds what actually cleared, including what nobody wrote down. A bank fee posts with no invoice behind it. A scheduled card charge leaves on its own date. A deposit entered the day it was written bounces two days later, and only the account shows it.
The bank statement is the second record of the same money, kept by someone with no stake in your figures. Two records of one account are what make an error findable at all. A single record has nothing to disagree with, so it can be wrong in perfect silence.
What is reconciling, then?
Reconciling is comparing those two records until they agree, or until you know why they do not. The University of Nebraska puts it plainly, that reconciling is a matter of “making sure one record of a financial account is consistent with another”, and for a farm that pass runs between the bank statement and the notebook or software where the balance lives. Oklahoma State University’s farm guide frames the same pass as a check on the completeness and accuracy of your data entries.
The pass itself goes down the statement one line at a time. You mark each line that is also in your own record and stop on each line that is not, then look the other way, for lines in your record that are not on the statement yet. Those stops are what the pass is for. A check you wrote that the bank has not cashed yet is usually timing; a fee on the statement that your record lacks is usually an error, and the two are handled differently.
What kinds of difference come off the comparison?
Two kinds of difference come off that comparison, and they are handled in opposite ways. One is a matter of time and needs no correction. The other is an error in one of the records and does need one. Telling them apart is the actual work of the pass, not a footnote to it.
| Kind of difference | What it looks like | What you do |
|---|---|---|
| Timing | A check written and entered but not yet cashed; a deposit entered today that the bank posts tomorrow | Nothing to fix, since it clears on its own. Note it so the totals line up for this month |
| Recording error | A fee or card charge the bank posted and the notebook never got; the same entry written twice; a figure typed wrong | Correct the notebook, and carry the corrected balance forward |
Oklahoma State lists the ordinary ways a notebook goes wrong: it is possible to “type numbers incorrectly, duplicate transactions, or forget to record a transaction”. It adds that “vendors can make mistakes”, such as a supplier who debits the account twice, which appears on the statement and not in the notebook. These slips happen to anyone who keeps records by hand, and each one leaves a line in one record that the other does not have.
What do you do with the difference you find?
The difference is written down with its reasons, never made to disappear. Each part gets a reason beside it: this much is a check still outstanding, that much was a fee nobody had entered. Once every part has a reason, nothing should be left over, and a leftover forced away without one is the error still hiding. The University of Nebraska closes the pass the same way, that “you should file a reconciliation worksheet with your bank statement”. Filed, the sheet is where next month’s reconciliation starts, instead of a page redone from nothing each time.
From the size of the difference you also learn something the balance alone cannot show. A small difference that is all timing means the notebook and the bank agree on almost everything. A large one that comes back every month usually means the notebook is missing a whole type of charge, such as an automatic debit or a card bill paid straight from the account, and the fix is not a better reconciliation. The fix is to start writing that type of charge down.
When is a balance that matches still wrong?
A balance that matches the bank shows the two records agree, not that every line is right. Reconciling is done when the adjusted bank balance on the reconciliation worksheet should match your check register or financial software balance. The adjusted balance is the statement’s ending balance, plus deposits the bank has not posted yet, minus checks it has not cashed yet. Two errors can also cancel each other out. If a fuel bill and a sale of the same amount were each entered twice, the extra bill and the extra sale offset each other, so the total still matches while the notebook is wrong.
An error copied into both records is worse, because it never surfaces. If an invoice carries the wrong price and the buyer pays exactly that amount, the notebook and the statement hold the same wrong figure, and reconciliation is silent on it, since the two records never disagree. The pass turns up where the notebook and the statement disagree. It finds nothing they got wrong together, and knowing that limit keeps a matched balance from being read as more than it is.
Every month, and against which record?
Reconciling belongs to closed months, one account at a time, against the notebook you already keep. The current month is still open, with charges and deposits still coming in. Last month is closed and has a statement to check against. The notebook or spreadsheet is the record you check, because it is the one you look at when you decide, and the statement is what you check it against.
Reconciling is not a verdict on whoever keeps the notebook. Any record kept by hand can pick up entry errors, and a second record is how they get found and fixed before the figures are used to decide a purchase or a payment.
Where to start
One afternoon with last month’s statement on the table is enough to end with a signed reconciliation sheet. Nothing here needs a system or a bookkeeper, only the account the farm already uses and the notebook or spreadsheet it already keeps.
The balance you reconcile is only the farm’s if the account is the farm’s. A statement that still carries the family’s groceries and the household’s card gives a balance you can reconcile to the last cent and still cannot read as the farm’s result. That is why the first step is keeping the farm’s money separate from the family’s in an account of its own, and a separate guide covers how to set that up.
Reconciled and kept in a farm-only account, one month’s balance is a figure you can show a lender when you ask for credit. The other farm finance guides on this site start from it. Set beside a month of running costs, it lets you work out how many months the farm could keep running if the money stopped coming in. If the month’s sales were larger than what came into the account, part of the difference is money still owed to you, sales made but not yet paid. Checking what you wrote down against what actually happened is worth doing for every record the farm keeps, and the farm management guide covers running the farm as a whole.