MosoFin skill · bank-reconciliation · learning guide

From one cheque to two companies sharing a bank account

This page shows how the skill proves that your bank and your books agree. It goes one level at a time, from a single uncashed cheque up to two companies that transact through one account. The page quotes every rule from the skill itself, and it calculates every number in front of you.

The rules are the skill's ownThe page quotes each rule with the step it comes from, so you can read it yourself.
An authority backs each ruleThe authorities are the IRS, US banking regulators, the GAO's internal-control standard and QuickBooks' own documentation. Each one has a number and a link.
The page shows the mathOpen "Check it yourself" on any level. Follow every line on a calculator.
Your numbers, your checkAt the end, enter your own month. Then watch the same rules run.
Rule: quoted from the skill Fact: from a cited authority, numbered like 1 Example: made-up figures, calculated in full
How it thinks

Five rules the whole skill runs on

Everything on this page is one of these rules applied to a bigger situation. The examples use one company, Northbrook Trading, its Operating account (…4471), and the month of September.

Learning path

Seven levels, from simple to complex

Check it yourself

Put in your own month

Enter one month from your bank statement and your books. Alternatively, load one of the levels above. The page builds the bridge and ages the leftovers as you type. The page sends nothing anywhere.

From the bank statement
From your books
Age the leftovers

The bridge is the skill's Step 2 ladders. The escalation ages (10 business days for a deposit in transit, 90 days for an uncashed cheque) are the skill's own quality rules. They are common practice, not a published standard. Your bank's cutoffs and your state's unclaimed-property rules4 may call for different escalation ages.

Sources

Where every fact on this page comes from

Rules are the skill's own. Facts below come from regulators, the US internal-control standard, a standard-setter and the accounting software's own documentation. The facts reflect each source as published when checked on 21 October 2026. Follow the link for today's wording.

    No outside authority backs these: the 10-business-day and 90-day escalation ages, and tying to the cent rather than to a materiality threshold. They are the skill's own quality rules. The page marks them as practice where they appear.

    Using it

    What it asks, needs and gives back

    Asks firstIs MosoFin the data source, or do you upload the data? Which account(s)? Which period? It also asks for the bank statement. When did you last reconcile the account? How small a difference is worth chasing?
    NeedsThe skill always needs your books' cash activity and ending balance, connected or exported, and the bank statement. Last month's reconciliation helps.
    Gives backThe skill gives you the two ladders and every match with the method that made it. It also gives you the unmatched items sorted, proposed entries tied to statement lines, and a sign-off line for two different people7.
    NeverThe skill never changes your books, marks anything cleared, approves the reconciliation, calls a book-side total "reconciled", or shows a full account number. It reads nothing before you say yes.