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Balance Sheet Reconciliation Template

Four Word documents and five CSV sheets to check each balance sheet account against outside evidence, total what's unsupported and age every open item.

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What you get

Pack of 9 files: 4 documents, 5 spreadsheets

Balance Sheet Reconciliation Template
  • Substantiation StandardDocument
  • Support TiersDocument
  • Substantiation RecordDocument
  • Review Sign-off NoteDocument
  • Account SubstantiationSpreadsheet
  • Accrued Liabilities DetailSpreadsheet
  • Prepaid Expenses DetailSpreadsheet
  • Support IndexSpreadsheet
  • Aged Unreconciled ItemsSpreadsheet
RiverBalance Sheet Reconciliation Template

Account Substantiation

[Entity] — balance sheet at [__ ___ 20__]

There is no Reconciled column and nothing will add one. Two of these columns are dollars, and together they add back to the balance.

AcctNameGL balanceTierEvidenced outside the ledgerUnevidencedVerdict
1010Operating cash—————
1100Accounts receivable—————
1400Prepaid expenses—————
2100Accrued liabilities—————
2400Deferred revenue—————

The four verdicts, and there is no fifth

SupportedThe whole balance is evidenced by tier 1 or tier 2 support
Supported in partPart of it is. The rest is a number, not a caveat
Self-referentialThe only support came out of the ledger being supported
UnsupportedNothing, or something stale enough to be nothing

Four states where every downloadable grid has a tick box.

Page 1 of 1149 words

How to do a balance sheet reconciliation

A balance sheet reconciliation checks each account's period-end balance in the general ledger against supporting documents, such as bank and lender statements, invoices, contracts and count sheets. To do one, list every balance sheet account from the trial balance and match each balance to its support, noting who produced each document. Explain every difference and how long it has been open, then have someone other than the preparer review and sign the work.

Support is only as good as its source. A report printed by the system that holds the balance is built to agree with it, so a zero difference there proves only that the arithmetic works.

Tall stacks of paper files and folders, marked with yellow tabs, in an office
A stack of support proves little until you know who produced each page. Photo: Wesley Tingey on Unsplash

List every balance sheet account

Start from the trial balance at the period end. Give every balance sheet account its own row, with your account numbers and names exactly as they appear, including accounts at zero that moved during the period. Check that total debits equal total credits before going further.

Reconcile cash, receivables, payables, accruals and anything built on an estimate every month. Quieter accounts need it at least once a quarter. Give each account an owner and a due day on your month-end close checklist, so the work is finished before anyone reports from the numbers.

Judge each document by its source

The Public Company Accounting Oversight Board (PCAOB) writes the standards that auditors of US public companies follow. Its standard on audit evidence, AS 1105, says that in general, evidence from a knowledgeable source independent of the company is more reliable1 than evidence from internal sources alone. It also ranks original documents above photocopies, faxes and scans.

That is why one of the most common tie-outs proves so little. A receivables aging comes out of the same ledger as the receivables account. When the two agree, that proves the system adds up, not that customers owe you the money. If auditors rely on reports like these, AS 1105 has them test the reports' accuracy and completeness, or the controls over them.

Where support for common accounts comes from

AccountReport from your own systemEvidence from outside the ledger
CashCash account detailBank statement you download yourself
Accounts receivableReceivables agingNext month's receipts matched to invoices, or customer confirmations
InventoryInventory valuation reportCount sheets signed by the people who counted
Prepaid expensesPrepaid scheduleVendor invoices that show the service period
Fixed assetsDepreciation rollforwardPurchase invoices, and depreciation you recalculate
Accounts payablePayables agingVendor statements, and next month's payments matched to invoices
Accrued liabilitiesLast month's accrual worksheetLeases, contracts and the actual bills that follow
LoansLoan amortization scheduleThe lender's statement at period end

Keep the reports from your own system. They show what makes up a balance and where to look, but they can't prove it.

Find outside evidence, then count it

The cheapest strong evidence usually arrives after the period ends. Cash received next month against specific invoices shows those receivables existed. Payments made next month can reveal bills that belonged in the period you're closing. For cash, a bank reconciliation does the line-by-line work, and a fixed asset register built from invoices supports equipment balances.

Then put a number on it. Split each balance into the dollars backed by outside evidence and the dollars that aren't, so the two add back to the balance. A tick in a Reconciled column hides that split, and the second figure is the one worth a reviewer's time.

ExampleA receivable that ties but proves littleAn illustrative example written for this guide. The company and figures are made up.

Accounts receivable, May 31. Ledger: $2,410,882.40. Aging from the same system: $2,410,882.40. Difference: $0.

June receipts matched invoice by invoice to the bank statement: $1,940,110.00. Evidenced outside the ledger: $1,940,110.00. Not yet evidenced: $470,772.40.

  • The zero proves arithmetic. The aging agrees because it is the ledger, printed another way.
  • The gap is the work. The $470,772.40 tells the reviewer how much still needs confirmations or later receipts.

Explain every difference with facts

Write down every difference as an item: what it is, when it arose, the amount and who owns it. "Timing" explains nothing unless you can say when the item will clear. Never add a balancing line to make an account agree. An unexplained amount is a finding, so record it as one.

Estimates need fresh support every period. Recalculate each recurring accrual from its source, such as the lease, the contract or recent actual bills, and note when it was last compared with a real invoice.

The allowance for credit losses is no different. In the US, the Financial Accounting Standards Board's credit loss standard bases it on historical experience, current conditions, and reasonable and supportable forecasts2. A memo written for last year's audit can't support this year's figure on its own.

Where your accountant comes in

A reconciliation shows what supports a balance; it doesn't decide the accounting. Ask your CPA or auditor before you change how an estimate is calculated, write off an old item or correct an error that built up over several periods. The fix may belong in earlier periods' figures.

Age what's left in dollars, not just days

Every item you can't clear goes on an aged list with the date it first appeared. Give each one two figures: its effect on this period, and the total it has reached on the balance sheet across every period it has survived.

The SEC staff shows why in Staff Accounting Bulletin 108, guidance written for public companies. Its example is an improper expense accrual of $100 that built up at $20 a year3 for five years. Judged on this year's income statement, the error is $20; on the balance sheet, it is $100. The staff says to measure both, and warns that the yearly view alone can let small errors pile up.

Say a utilities accrual is booked at $9,400 a month while the bills paid against it average $7,475. That leaves $1,925 too much in the liability every month, an amount nobody stops to chase. After 24 months, accrued liabilities hold $46,200 that the business doesn't owe.

Small doesn't mean safe. In SAB 99, the SEC staff says exclusive reliance on a percentage threshold such as 5% has no basis in the accounting literature or the law4. Its list of reasons a small misstatement can still be material includes whether it affects compliance with loan covenants. Use a threshold to decide what to investigate first, never what to ignore.

Review the reconciliation before signing

The reviewer should be someone other than the preparer, and both should sign and date each reconciliation. If nobody else can review, leave the reviewer line blank rather than signing twice, and ask an outside accountant to check the riskiest accounts.

Read the numbers before the conclusions. Start with the dollars that nothing outside the ledger supports, then the zero differences on internal reports, then the aged list read as one total. A reviewer who reads only the status column learns that the preparer agrees with themselves.

Before you sign off

  • Every balance sheet account on the trial balance has a row
  • Each document shows who produced it and the period it covers
  • Zero differences on your own reports aren't counted as outside evidence
  • Every recurring estimate has been compared with a recent actual
  • Every open item has an age, both figures, an owner and a decision
  • The reviewer isn't the preparer, and both have signed and dated

If an audit is coming, an audit preparation checklist tracks what the auditors will ask for. To skip the setup, open this template in River. It builds the account list from your trial balance, sorts your documents by who produced them and totals what has no outside evidence.

How to use this template

Use the files on their own, or open them in River. River asks for your trial balance and everything behind it, from bank statements to accrual worksheets. Then it lists each balance sheet account and sorts the support by who produced it. It totals how much of the balance sheet has no outside evidence, ages every open item and suggests which account to work first.

It won't propose journal entries, set estimates or write anything off, and it never changes your accounting system. Those decisions stay with you and your accountant.

  1. Download it or open it in River

    Download the four Word documents and five CSV sheets free, or open the whole template in River and work with AI.

  2. List accounts and log support

    Give each balance sheet account a row in Account Substantiation, then log every document in Support Index with who produced it.

  3. Count what outside evidence covers

    Split each balance into dollars backed by outside documents and dollars that aren't. Do it yourself or let River do it.

  4. Age open items, then review

    Give every open item its age, this period's effect and its running total, then have someone else review before signing.

What's in the template

Four of the sheets, filled in for one period endAccount Substantiation, Support Index, Aged Unreconciled Items and the Accrued Liabilities Detail.
Balance Sheet Reconciliation Template
RiverAccount Substantiation

Account Substantiation

Kestrel Fluid Systems, 31 May 2026. An illustrative company.

AcctNameGL balanceTierEvidencedUnevidencedVerdict
1010Operating cash1,284,905.1211,284,905.120.00Supported
1100Accounts receivable2,410,882.4031,940,110.00470,772.40Supported in part
1150Allowance for credit losses(118,400.00)40.00118,400.00Unsupported
1300Inventory1,842,300.0021,842,300.000.00Supported
1650Accumulated depreciation(1,204,118.00)30.001,204,118.00Self-referential
2100Accrued liabilities(486,220.00)4150,640.00335,580.00Unsupported
2400Deferred revenue(708,900.00)30.00708,900.00Self-referential
2600Equipment note payable(642,810.00)1642,810.000.00Supported
3200Suspense(2,404.00)40.002,404.00Unsupported

Accumulated depreciation and deferred revenue both tie to the cent, and both are evidenced by nothing. The rollforward comes from the fixed asset module that posts the depreciation, and the waterfall comes from the billing system that posts the revenue.

RiverSupport Index

Support Index

One row per document. The tier is decided by who produced it, never by how thorough it looks.

RefDocumentWho produced itHow we got itTierCovers
SUP-011May account statementFirst Meridian BankDownloaded from the portal by the preparer11 to 31 May
SUP-020Receivables aging at 31 MayKestrel general ledgerExported by the preparer3At 31 May
SUP-020aJune receipts traced to May invoicesFirst Meridian BankStatement matched invoice by invoice21 to 30 June
SUP-021Allowance methodology memoKestrel controllerFound in the FY2024 audit folder4FY2024
SUP-030Physical count sheetsKestrel warehouse teamSigned by two counters and handed over2At 18 May
SUP-051Depreciation rollforwardKestrel fixed asset moduleExported by the preparer31 to 31 May
SUP-070Accrual worksheetKestrel accountingRolled forward from April4At 31 May
SUP-080Q1 filing and June remittance advicePayroll providerReceived by email from the provider1Q1 and June
SUP-100Loan statement at 31 MayCascade Equipment FinanceArrived by post and was scanned1At 31 May

SUP-021 reads like real support. It states a methodology, it names an author and an audit firm accepted it. It was written in March 2025 about FY2024 data and it is still setting a live allowance, which is what tier 4 is for.

RiverAged Items

Aged Unreconciled Items

Two columns on every row, because one of them was never going to catch this.

AccountFirst seenPeriodsThis periodAccumulatedWhy it is still hereDisposition
3200 Suspense2024-0921118.002,404.00Nothing has ever been attributed to it and no owner is namedOpen
2100 Accrued2025-0216940.0015,040.00The lease escalated on 1 February 2025 and the rent accrual never movedCorrect in June
2100 Accrued2024-06241,925.0046,200.00The utilities accrual has not been compared to an actual bill in two yearsOpen
1400 Prepaid2026-0331,816.675,450.00Three March entries with no invoice and no amortisation scheduleOpen
1030 In transit2025-1080.0012.38Cleared in June. Held one more period to confirm it stays clearedWrite off
TOTAL——4,799.6769,106.38Not one of these was material in the month it arose—

1,925.00 a month is the sort of number that gets waved through at eleven at night, twenty four times in a row. The right column is the one somebody has to look at.

RiverAccrual Detail

Accrued Liabilities Detail

The line level sheet behind one account. Prepaid Expenses Detail is built the same way.

AccrualGLRecalculatedDiffTierLast compared to an actualVerdict
Rent24,860.0023,920.00940.0042025-01Unsupported
Utilities9,400.007,475.001,925.0042024-05Unsupported
Audit fee62,500.0062,500.000.0022026-03Supported
Bonus214,000.00214,000.000.0032026-05Supported in part
Sales commission88,140.0088,140.000.0022026-06Supported
Legal fees45,000.00——4—Unsupported
Warranty42,320.0042,320.000.0032026-05Supported in part

Legal fees carries no recalculation and no residual, because a verbal estimate cannot be recalculated and inventing a number to fill the cell would be the actual error. Counsel was asked for something in writing on 3 June and the row says so.

  • Account Substantiation sheetOne row per account: balance, best support, dollars evidenced outside the ledger, dollars unevidenced, and a verdict.
  • Support Index sheetOne row per document: what it is, who produced it, how you got it, its tier and the period covered.
  • Aged Unreconciled Items sheetEach open item with when it first appeared, this period's effect, the running balance sheet total, owner and decision.
  • Accrued Liabilities Detail sheetEach accrual recalculated from its stated basis, with the date it was last compared with an actual bill.
  • Prepaid Expenses Detail sheetEach prepaid by vendor and invoice, with the service period, amount amortized and balance at period end.
  • Substantiation StandardWhat counts as substantiated, the four allowed verdicts, and why every open item carries two figures.
  • Support TiersFour tiers that grade each document by who produced it and how it reached you.
  • Substantiation RecordA write-up for each judgment-heavy account, with a filled-in example for accrued liabilities.
  • Review Sign-off NoteThe six checks a reviewer runs before signing, and the two notes to leave for next period.

Common questions

How often should you reconcile balance sheet accounts?

Every month for active or judgment-heavy accounts: cash, receivables, payables, accruals, payroll liabilities and any suspense account. Accounts that rarely move, such as security deposits or common stock, can be checked each quarter. Whatever the routine, reconcile every account at a period end that a lender, an auditor or a buyer will rely on.

What counts as supporting documentation for a balance sheet reconciliation?

Anything that backs up a balance from outside your own books. That includes bank and loan statements, vendor invoices and statements, signed contracts, customer confirmations, signed count sheets, and cash received or paid after the period end. Agings and other reports from your accounting system help you find problems, but on their own they only show that the system agrees with itself.

What is the difference between a bank reconciliation and a balance sheet reconciliation?

A bank reconciliation matches one cash account to the bank's statement, line by line. A balance sheet reconciliation covers every account on the balance sheet, cash included, from receivables and prepaids to accruals, loans and equity, each against its own support. The bank reconciliation usually comes first, because cash has the cleanest outside evidence.

What should you do with a difference you can't explain?

Keep it visible. Put it on an aged list with the date it first appeared, its effect on this period and its running total, and name an owner. Don't force the account to agree or write the item off just to clear it. If it keeps growing or touches a loan covenant, take it to your accountant.

Who should review a balance sheet reconciliation?

Someone who didn't prepare it, such as a controller, a finance manager or the owner, who signs and dates it after checking the support. In a one-person finance team, leave the reviewer line blank instead of signing your own work, and have an outside accountant review the largest and riskiest accounts.

Is this balance sheet reconciliation template free?

Yes, the files are free to download with no account. You get four Word documents and five CSV sheets. The sheets are filled in with a made-up company's May month-end, so the method is easy to follow. Clear the example rows and add your own accounts, or choose Edit with AI to work in River.

What does Edit with AI do?

It opens this template in a free River workspace. River asks for your trial balance and the documents behind it, even scans or phone photos. It lists every account, grades each document by who produced it and totals the dollars nothing outside your books supports. Each open item gets its age, this period's effect and its running total. Your accounting system is never changed.

Sources

  1. PCAOB. “AS 1105: Audit Evidence.” pcaobus.org (opens in a new tab)

  2. FASB. “Accounting Standards Update No. 2016-13, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments.” storage.fasb.org (opens in a new tab)

  3. SEC. “Staff Accounting Bulletin No. 108.” sec.gov (opens in a new tab)

  4. SEC. “Staff Accounting Bulletin No. 99: Materiality.” sec.gov (opens in a new tab)

Written by

Chandler Supple

Co-founder & CEO, River

Chandler has spent the last six years working in AI, building tools for millions of users and Fortune 100 companies. In 2025, he co-founded River to build a new kind of operating system for AI agents.

Reviewed by

Brian Joseff, Co-founder, River