Accounting · Units 1–9 · Quick reference

AccountingPrinciples I

Grades 10–12 · College8 pages

The accounting equation · debits and credits · the accounting cycle · journal entries · adjusting entries · depreciation · closing · the four financial statements · merchandising and inventory · cash and bank reconciliation · receivables · payroll · liabilities and owner’s equity · ratios · GAAP · common errors

1Accounting equation2Debits & credits3Cycle & journal4GAAP5Adjusting entries6Depreciation7Worksheet & closing8Financial statements9Key ratios10Merchandising11Inventory costing12Cash & receivables13Payroll14Liabilities & owner’s equity15Common errors

1The Accounting Equation

A lemonade stand’s first week
EventCashSuppliesStand= Payable+ Owner’s equity
Invest $50 of savings+50+50 investment
Buy a stand and pitchers−30+30
Buy lemons and cups on credit+20+20
Sell lemonade for cash+65+65 revenue
Use up supplies−14−14 expense
Pay the grocer−20−20
Take $10 home−10−10 drawing
Balance55630091
Assets 55 + 6 + 30 = 91 = Liabilities 0 + Owner’s equity 91. Every row keeps both sides equal.

The equation and its expanded form

Assets: what the business owns. Liabilities: what it owes. Owner’s equity: the owner’s claim, A − L. Revenue − expenses = net income.

Assets = Liabilities + Owner’s Equity

A = L + Capital − Drawing + Revenue − Expenses

Revenue
value earned by delivering goods or services
Expense
cost of assets used up or services consumed to earn revenue
Drawing
assets the owner takes out; lowers owner’s equity, not an expense

“For which of you, intending to build a tower, sitteth not down first, and counteth the cost, whether he have sufficient to finish it?” (Luke 14:28, KJV)

The owner is last in line

Creditors are paid first; the owner keeps what is left. So owner’s equity is the remainder: A − L.

2Debits, Credits & T-Accounts

AssetsDebitCredit+−normal: debit=LiabilitiesDebitCredit++normal: credit+CapitalDebitCredit++normal: credit−DrawingDebitCredit+−normal: debit+RevenueDebitCredit++normal: credit−ExpensesDebitCredit+−normal: debitLeft (debit) side increases: Assets, Drawing, Expenses. Right (credit) side increases: Liabilities, Capital, Revenue.
Debit (Dr)
left side; from Latin debere, to owe
Credit (Cr)
right side; from Latin credere, to trust
Not good or bad
debit and credit mean left and right, nothing more
Contra account
balance opposite its partner: Accumulated Depreciation, Allowance for Doubtful Accounts, Sales Discounts

DEALER (Traditional)

Drawing, Expenses, Assets: debit balances. Liabilities, owner’s Equity (capital), Revenue: credit balances. In a corporation the D is Dividends.

Bank talk is backward

The bank “credits” your deposit because it now owes you. In your books cash went up: a debit.

Cash (101)Debit (Dr)Credit (Cr)Jun 120,000Jun 16,000Jun 51,500Jun 11,200Jun 29400Jun 21,800Jun 306,400Jun 151,200Jun 25500Jun 281,000Jun 301,100footing28,300footing12,800Balance15,500
Bright Day’s June Cash, posted from the journal (section 3). Foot each side; the balance sits on the larger side.
School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
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AccountingAccounting · Units 1–9 · continued

3The Accounting Cycle & the Journal

Worked month: Bright Day Laundromat (owner M. Grant), June 2026; the note is due in 2031
TransactionDebitCredit$
Jun 1 Owner invests cashCashGrant, Capital20,000
Jun 1 Buys machines: $6,000 down, 6% noteEquipmentCash, Notes Payable6,000 + 30,000
Jun 1 Pays 12 months’ insurancePrepaid InsuranceCash1,200
Jun 2 Pays June rentRent ExpenseCash1,800
Jun 3 Buys supplies on accountSuppliesAccounts Payable800
Jun 5 Motel prepays 3 months’ serviceCashUnearned Revenue1,500
Jun 15 Pays wagesWages ExpenseCash1,200
Jun 20 Bills a café for linensAccounts ReceivableLaundry Revenue900
Jun 25 Pays supplier on accountAccounts PayableCash500
Jun 28 Owner withdraws cashGrant, DrawingCash1,000
Jun 29 Collects from the caféCashAccounts Receivable400
Jun 30 June coin and card revenueCashLaundry Revenue6,400
Jun 30 Pays utilitiesUtilities ExpenseCash1,100
1 Analyze& journalize2 Postto the ledger3 Trialbalance4 Adjustaccrue, defer5 Adjustedtrial balance6 Statementsprepare 47 Closetemp. accounts8 Post-closingtrial balanceevery period(month or year)

Journalize, then post

  • From a source document: debits first, credits indented, an explanation. 3+ accounts: a compound entry.
  • Post each amount to the same side of its ledger account; the PR columns make the audit trail.
Chart of accounts
No.TypeExample
100sAssets101 Cash
200sLiabilities201 Accounts Payable
300sOwner’s equity301 Capital
400sRevenue401 Laundry Revenue
500sExpenses510 Rent Expense
Assets in order of liquidity, Cash first.
Cash basis
revenue when cash comes in; expense when cash goes out
Accrual basis
revenue when earned, expense when incurred; GAAP requires it
General journal format
AccountDebitCredit
Jun 1 Equipment36,000
 Cash6,000
 Notes Payable30,000
Bought equipment; $6,000 down, 5-year 6% note
Jun 20 Accounts Receivable900
 Laundry Revenue900
Billed Corner Café, terms n/30

4GAAP: Principles & Assumptions

Principles and constraints
PrincipleMeans
Historical costrecord assets at what was paid
Revenue recognitionrecord revenue when goods or services are delivered (earned)
Matching (expense recognition)record expenses in the period of the revenue they helped earn
Full disclosuretell readers everything that would change their judgment (notes)
Consistencysame methods each period; disclose changes
Materiality (constraint)amounts too small to change a decision may be handled simply
Conservatism (prudence)in real doubt, do not overstate assets or income
Four assumptions
AssumptionMeans
Economic entitybusiness books apart from the owner’s
Going concernthe business will keep operating
Monetary unitrecord only what dollars can measure
Periodicityreport by month, quarter, year
Revenue (ASC 606)
contract → obligations → price → allocate → recognize when each is met
Qualities
relevant and faithfully represented
Rule makers
FASB (1973) writes U.S. GAAP; the SEC oversees public companies; most other countries use IFRS

Every Good Man Prays

The four assumptions: Entity, Going concern, Monetary unit, Periodicity.

School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
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AccountingAccounting · Units 1–9 · continued

5Adjusting Entries

Bright Day’s seven adjustments
KindWhy (June 30)Entry$
(a)Deferral (prepaid)Insurance used: $1,200 ÷ 12Dr Insurance Expense; Cr Prepaid Insurance100
(b)Deferral (prepaid)Supplies: $800 − $350 countedDr Supplies Expense; Cr Supplies450
(c)Depreciation($36,000 − $3,600) ÷ 120 monthsDr Depreciation Expense; Cr Accumulated Depreciation270
(d)Deferral (unearned)One of 3 months earnedDr Unearned Revenue; Cr Laundry Revenue500
(e)Accrued expenseWages earned Jun 26–30, unpaidDr Wages Expense; Cr Wages Payable600
(f)Accrued expenseInterest: $30,000 × 6% × 1/12Dr Interest Expense; Cr Interest Payable150
(g)Accrued revenueCafé linens washed, not yet billedDr Accounts Receivable; Cr Laundry Revenue200
Net effect: revenue +700, expenses +1,570. Skipping them would overstate June’s net income by 870 (3,200 instead of 2,330).
The four kinds (plus depreciation)
TypeCash moved…Adjusting entry
Prepaid expensebefore the expenseDr Expense, Cr Prepaid (asset)
Unearned revenuebefore the revenueDr Unearned (liability), Cr Revenue
Accrued expenseafter the expenseDr Expense, Cr Payable
Accrued revenueafter the revenueDr Receivable, Cr Revenue
Depreciationwhen the asset was boughtDr Depreciation Exp., Cr Accum. Depreciation

Three rules

  • Every adjusting entry has one income-statement account and one balance-sheet account.
  • Cash is never in an adjusting entry.
  • Use the amount used or earned, not the amount on hand.
Book value
cost − accumulated depreciation: 36,000 − 270 = 35,730
Reversing entry
optional, first day of the next period: undoes an accrual

Deferral = cash first; accrual = cash later

Deferral: the cash moved first; you defer the revenue or expense until it is earned or used. Accrual: the work came first; the cash will follow.

6Depreciation

A $12,000 washer-extractor: salvage $2,000, life 5 years or 50,000 wash cycles
YearStraight-line: expenseSL book valueDDB: rate × start BVDDB expenseDDB book valueCycles runUnits-of-prod. expenseUOP book value
12,00010,00040% × 12,0004,8007,20012,0002,4009,600
22,0008,00040% × 7,2002,8804,32011,0002,2007,400
32,0006,00040% × 4,3201,7282,59210,0002,0005,400
42,0004,00040% × 2,5925922,0009,0001,8003,600
52,0002,00040% × 2,00002,0008,0001,6002,000
Total10,00010,00050,00010,000
Year 4 DDB: 40% × 2,592 = 1,036.80 would drop book value below salvage, so the expense stops at 592; year 5 is 0. All three methods charge the same 10,000 in total.

Three formulas

  • Straight-line = (cost − salvage) ÷ life: (12,000 − 2,000) ÷ 5 = 2,000 a year.
  • DDB = (2 ÷ life) × book value at the start of the year: 40% × 12,000 = 4,800. Ignore salvage in the multiply; never go below it.
  • Units of production = (cost − salvage) ÷ total units × units used: $0.20 × 12,000 = 2,400.
0k3k6k9k12ksalvage012345end of yearStraight-lineDDBUnits
Book value falls to the same salvage line by every method.

Selling the washer after 3 years (SL) Worked

Book value = 12,000 − 6,000 = 6,000
Sold for 5,500: loss 500cash − book value
Dr Cash 5,500; Dr Accum. Depr. 6,000; Dr Loss 500; Cr Equipment 12,000

Rules of thumb

  • Land is never depreciated.
  • Cost includes price, freight, installation and testing (capital expenditure); routine repairs are expenses.
  • Part year: SL × months used ÷ 12.
  • Depreciation allocates cost; it does not measure market value.
School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
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AccountingAccounting · Units 1–9 · continued

7Trial Balance, Worksheet & Closing

Bright Day Laundromat · Worksheet · June 30, 2026
AccountTrial balance DrTrial balance CrAdjustments DrAdjustments CrAdjusted TB DrAdjusted TB Cr
101 Cash15,50015,500
112 Accounts Receivable500(g) 200700
126 Supplies800(b) 450350
130 Prepaid Insurance1,200(a) 1001,100
157 Equipment36,00036,000
158 Accumulated Depreciation(c) 270270
201 Accounts Payable300300
210 Notes Payable30,00030,000
220 Unearned Revenue1,500(d) 5001,000
230 Wages Payable(e) 600600
240 Interest Payable(f) 150150
301 Grant, Capital20,00020,000
302 Grant, Drawing1,0001,000
401 Laundry Revenue7,300(d) 500 (g) 2008,000
510 Rent Expense1,8001,800
520 Utilities Expense1,1001,100
530 Wages Expense1,200(e) 6001,800
540 Insurance Expense(a) 100100
550 Supplies Expense(b) 450450
560 Depreciation Expense(c) 270270
570 Interest Expense(f) 150150
Totals59,10059,1002,2702,27060,32060,320

Finishing the worksheet

  • Extend each adjusted balance: revenue and expenses to the Income Statement columns; assets, liabilities, capital and drawing to the Balance Sheet columns.
  • The difference in the IS columns is net income (2,330); enter it on the debit side of the IS columns and the credit side of the BS columns. Then all four pairs balance.

A trial balance proves only equality

  • It will not catch: an entry left out or posted twice; the right amount in the wrong account of the same side; two errors that offset.
  • It will catch: a one-sided posting, a wrong total, a balance in the wrong column, a transposed or slid figure (section 15).

REID (Traditional)

Close in order: Revenue, Expenses, Income Summary, then Drawing (or Dividends).

Do not close

  • Accumulated Depreciation, Unearned Revenue, Allowance for Doubtful Accounts: they are permanent.
  • Drawing into Income Summary.
June 30 closing entriesDebitCredit
(1) Laundry Revenue8,000
 Income Summary8,000
(2) Income Summary5,670
 Rent Expense1,800
 Utilities Expense1,100
 Wages Expense1,800
 Insurance Expense100
 Supplies Expense450
 Depreciation Expense270
 Interest Expense150
(3) Income Summary2,330
 Grant, Capital2,330
(4) Grant, Capital1,000
 Grant, Drawing1,000
(1) revenue to Income Summary; (2) expenses to Income Summary; (3) net income to capital; (4) drawing straight to capital, never through Income Summary.
Income SummaryDebit (Dr)Credit (Cr)Expenses5,670Revenue8,000To capital2,330footing8,000footing8,000Balance0
Income Summary lives only during closing, then returns to zero.
Post-closing trial balanceDebitCredit
Cash15,500
Accounts Receivable700
Supplies350
Prepaid Insurance1,100
Equipment36,000
Accumulated Depreciation270
Accounts Payable300
Notes Payable30,000
Unearned Revenue1,000
Wages Payable600
Interest Payable150
Grant, Capital21,330
Totals53,65053,650
Only permanent accounts remain. Capital = 20,000 + 2,330 − 1,000 = 21,330.

Why close?

  • Temporary accounts (revenue, expense, drawing) measure one period; closing zeroes them and moves net income and drawing into capital.
  • A net loss: debit Capital, credit Income Summary.

Three trial balances

Prove the books three times: before you adjust, after you adjust and after you close.

School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
Page 4
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AccountingAccounting · Units 1–9 · continued

8The Four Financial Statements

1 Income Statementfor the month ended June 30Revenue8,000− Expenses5,670= Net income2,3302 Owner’s Equityfor the month ended June 30Beginning capital0+ Investment20,000+ Net income2,330− Drawing1,000= Ending capital21,3304 Balance SheetJune 30 (one moment)Cash15,500Total assets53,380Liabilities32,050Capital21,330L + Capital53,3803 Cash Flowsfor the month ended June 30Operating2,500Investing(6,000)Financing19,000Beginning cash0= Ending cash15,500ending capital goes to the balance sheet
Income Statement · month ended June 30
Laundry Revenue8,000
 Rent Expense1,800
 Utilities Expense1,100
 Wages Expense1,800
 Insurance Expense100
 Supplies Expense450
 Depreciation Expense270
 Interest Expense150
Total expenses5,670
Net income2,330

I-O-B-C

Prepare in order: Income, Owner’s equity, Balance sheet, Cash flows; each borrows a number from the one before.

Balance Sheet · June 30, 2026
Current assets
 Cash15,500
 Accounts Receivable700
 Supplies350
 Prepaid Insurance1,10017,650
Equipment36,000
 Less: accum. depreciation(270)35,730
Total assets53,380
Current liabilities
 Accounts Payable300
 Wages Payable600
 Interest Payable150
 Unearned Revenue1,0002,050
Notes payable (long-term)30,000
Total liabilities32,050
Grant, Capital21,330
Total liabilities and capital53,380
Statement of Cash Flows (indirect) · June
Operating activities
 Net income2,330
 Add: depreciation270
 Increase in AR, supplies, prepaid(2,150)
 Increase in current liabilities2,050
Net cash from operating2,500
Investing: equipment(6,000)
Financing: 20,000 − 1,00019,000
Net increase in cash15,500
Noncash: equipment for a 30,000 note. Direct method: 8,300 − 5,800 = 2,500.

Cash-flow groups

Operating
customers, suppliers, workers
Investing
long-term assets
Financing
owners and lenders

9Key Ratios

Liquidity, activity, solvency, profitability
RatioFormulaHilltop Vending (year)
Current ratiocurrent assets ÷ current liabilities9,000 ÷ 3,600 = 2.50
Quick (acid-test)(cash + short-term investments + AR) ÷ current liabilities6,000 ÷ 3,600 = 1.67
Working capitalcurrent assets − current liabilities5,400
Receivables turnovernet credit sales ÷ average AR; days = 365 ÷ turnover12,000 ÷ 1,000 = 12.0; 30.4 days
Inventory turnoverCOGS ÷ average inventory; days = 365 ÷ turnover22,600 ÷ 2,260 = 10.0; 36.5 days
Debt ratiototal liabilities ÷ total assets12,000 ÷ 30,000 = 40%
Debt-to-equitytotal liabilities ÷ owner’s equity12,000 ÷ 18,000 = 0.67
Times interest earnedoperating income ÷ interest expense11,500 ÷ 900 = 12.8×
Gross margingross profit ÷ net sales28,800 ÷ 51,400 = 56.0%
Net profit marginnet income ÷ net sales10,600 ÷ 51,400 = 20.6%
Return on assetsnet income ÷ average total assets10,600 ÷ 29,000 = 36.6%
Return on owner’s equitynet income ÷ average owner’s equity10,600 ÷ 17,000 = 62.4%
Hilltop, Dec 31: cash 4,800, AR 1,200, inventory 2,400, prepaid 600; assets 30,000 = liabilities 12,000 + owner’s equity 18,000.

DuPont

  • ROE = net margin × asset turnover × (avg. assets ÷ avg. owner’s equity)
  • Asset turnover = sales ÷ avg. assets = 1.77; 20.6% × 1.77 × 1.71 ≈ 62.4%.

Using ratios well

  • Compare with last year and similar businesses.
  • Unpaid owner work is not an expense, so small-business returns look high.
  • EPS = (net income − preferred dividends) ÷ avg. common shares.

L-A-S-P

Four questions in order: Liquidity (pay this year?), Activity (how fast?), Solvency (survive the long run?), Profitability (worth it?).

“Be thou diligent to know the state of thy flocks, and look well to thy herds.” (Proverbs 27:23, KJV)

School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
Page 5
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AccountingAccounting · Units 1–9 · continued

10Merchandising

Perpetual vs periodic entries
Event (Hilltop Vending)Perpetual systemPeriodic system
Buy 300 bags at $0.60 on account, 2/10, n/30Dr Merchandise Inventory 180; Cr Accounts Payable 180Dr Purchases 180; Cr Accounts Payable 180
Pay within 10 days (2% off)Dr AP 180; Cr Inventory 3.60; Cr Cash 176.40Dr AP 180; Cr Purchase Discounts 3.60; Cr Cash 176.40
Pay freight inDr Merchandise Inventory 15; Cr Cash 15Dr Freight-In 15; Cr Cash 15
Sell for $1,050 cash (cost $420)Dr Cash 1,050; Cr Sales Revenue 1,050 and Dr Cost of Goods Sold 420; Cr Inventory 420Dr Cash 1,050; Cr Sales Revenue 1,050 only
Refund $3 (jammed machine)Dr Sales Returns and Allowances 3; Cr Cash 3same
Period endcount; shrinkage: Dr COGS, Cr Inventorycount; compute COGS

Periodic COGS = beginning inventory + net purchases − ending inventory Worked

Net purchases = 23,230 + 400 − 300 − 450 = 22,880
Goods available = 2,120 + 22,880 = 25,000
COGS = 25,000 − 2,400 = 22,600count: 2,400 left

Perpetual never sleeps

Perpetual updates inventory and COGS with every sale (a scanner does it). Periodic waits for the count.

Multi-step income statement · Hilltop Vending · year
Sales revenue52,000
 Less: sales returns and allowances(600)
Net sales51,400
Cost of goods sold(22,600)
Gross profit28,800
Operating expenses (itemized on the statement)(17,300)
Operating income11,500
Interest expense(900)
Net income10,600
Expenses: commissions 5,200, van 6,400, depreciation 3,000, other 2,700. Gross margin 56.0%.
Terms of trade
TermMeaning
2/10, n/302% off if paid in 10 days; full amount due in 30
FOB shipping pointbuyer owns the goods once shipped; buyer pays freight
FOB destinationseller owns them until delivered; seller pays freight
Sales discounts, returns and allowancescontra-revenue: subtract from sales to get net sales
Shrinkagetheft, damage, error: records − count

11Inventory Costing

Same goods, three answers
MethodCost of goods sold$Ending inventoryGross profit
FIFO200 × 0.50 + 300 × 0.60 + 200 × 0.70420300 × 0.70 = 210630
LIFO500 × 0.70 + 200 × 0.60470100 × 0.60 + 200 × 0.50 = 160580
Weighted average700 × 0.63441300 × 0.63 = 189609
Each method splits the same 630: COGS + ending inventory = goods available. Weighted-average unit cost = 630 ÷ 1,000 = $0.63.
Hilltop Vending: one snack, March (periodic)
LayerUnitsUnit costTotal
Mar 1 on hand2000.50100
Mar 10 bought3000.60180
Mar 20 bought5000.70350
Goods available1,000630
Sold 700 units at $1.50 = 1,050 of sales.
When costs riseFIFOLIFO
COGSlowesthighest
Net income, taxeshighestlowest
Ending inventorynear current costold, low costs
AllowedGAAP and IFRSGAAP only; not IFRS
Weighted average falls between. Prices falling? The order flips.
FIFO200 @ $0.50Mar 1 on hand300 @ $0.60Mar 10 bought500 @ $0.70Mar 20 boughtLIFO200 @ $0.50300 @ $0.60500 @ $0.70to cost of goods soldending inv.
FIFO sends the oldest layers to COGS; LIFO the newest.

Inventory errors

  • Ending inventory overstated → COGS too low → net income too high this year and too low next year. The two offset, but both years are wrong.

More rules

  • Specific identification: each unit’s actual cost (cars, jewelry).
  • Consistency: keep one method; disclose a change. LIFO conformity: LIFO for taxes means LIFO in the books.
  • Lower of cost and net realizable value (FIFO, average): write inventory down when worth less than cost.
  • Perpetual FIFO = periodic FIFO; perpetual LIFO and average can differ.

First in, first out the door

FIFO: the oldest snacks leave first, so the shelf holds the newest costs. LIFO: last in, first out; the oldest costs stay on the shelf.

School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
Page 6
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AccountingAccounting · Units 1–9 · continued

12Cash & Receivables

Bank reconciliation, March 31
Hilltop Vending$$
Bank sideBook side
Balance per bank, Mar 313,420Balance per books3,813
+ Deposit in transit860+ Interest earned5
− Outstanding check #211(240)− Service charge(15)
− Outstanding check #214(395)− NSF check (host site)(140)
− Error: check #212 for 86 recorded as 68(18)
Adjusted cash3,645Adjusted cash3,645
Entries (book side only)DebitCredit
Cash5
 Interest Revenue5
Bank Service Charge Expense15
 Cash15
Accounts Receivable140
 Cash140
Repairs Expense18
 Cash18
Bank-side items need no entry: the bank will catch up. 86 − 68 = 18, a transposition (divisible by 9).
Allowance method
EventEntryNRV
Estimate (aging)Dr Bad Debt Expense 350; Cr Allowance 3507,530
Write off a $90 accountDr Allowance 90; Cr Accounts Receivable 907,530 (no change)
It pays after allDr AR 90; Cr Allowance 90; then Dr Cash 90; Cr AR 907,440 + cash 90

Who hasn’t heard the news?

Deposits in transit and outstanding checks are news the bank hasn’t heard. Fees, NSF checks and interest are news you hadn’t heard: only these get entries.

Petty cash: replenish a $100 fundDebitCredit
Postage Expense28
Supplies Expense41
Delivery Expense17
Cash Short and Over2
 Cash88
Receipts 86; the box holds 12, not 14: 2 short. A check for 88 refills it to 100.
Aging schedule
Age (Bright Day, Dec 31)BalanceRateEstimate
Not yet due5,0001%50
1–30 days past due1,8005%90
31–60 days90020%180
Over 60 days30050%150
Total8,000470
Need 470; the allowance already has a 120 credit, so the entry is 350.

Internal control

  • Separate duties: whoever handles cash does not record it or reconcile the bank; deposit daily.
  • Fraud triangle: pressure, opportunity, excuse; controls remove the opportunity.
  • “Providing for honest things, not only in the sight of the Lord, but also in the sight of men.” (2 Corinthians 8:21, KJV)
Percent of sales
computes the expense: credit sales 40,000 × 1% = 400, whatever the balance
Aging
computes the ending allowance; a debit balance first? add it: 470 + 60 = 530
Net realizable value
AR − allowance: 8,000 − 470 = 7,530
Direct write-off
expense only at write-off; not GAAP when bad debts are material

Write-off changes nothing

A write-off lowers both AR and the allowance: net realizable value and net income do not move. The expense came with the estimate.

13Payroll Basics

One week, one attendant Worked

Regular: 40 × 16.00 = 640.00
Overtime: 6 × (16.00 × 1.5) = 144.001½× over 40 hours
Gross pay = 784.00
Social Security 6.2% = 48.61; Medicare 1.45% = 11.37withheld
Income tax withheld (IRS and state tables) = 60.00given
Net pay = 664.02take-home

“for the labourer is worthy of his hire.” (Luke 10:7, KJV)

Record the payrollDebitCredit
Wages Expense784.00
 Social Security Tax Payable48.61
 Medicare Tax Payable11.37
 Income Taxes Payable60.00
 Cash (or Wages Payable)664.02
Who pays what
Tax (2026)WorkerEmployerWage cap
Social Security6.2%6.2%$184,500
Medicare1.45%*1.45%none
FUTA—0.6% net$7,000
SUTA—by statevaries
*Plus 0.9% over $200,000. FUTA: 6.0% less up to 5.4% state credit. Rates change yearly.
Employer’s payroll taxesDebitCredit
Payroll Tax Expense85.85
 Social Security Tax Payable48.61
 Medicare Tax Payable11.37
 FUTA Tax Payable4.70
 SUTA Tax Payable21.17
Employer matches FICA; FUTA 0.6% × 784 = 4.70; SUTA at a sample 2.7% = 21.17.

Three piles from one paycheck

Gross pay splits into what the worker keeps, what the government gets (a liability) and what the worker chose to save. Employer taxes sit on top.

School
Launch
Accounting · Units 1–9: Equation · Debits & Credits · The Cycle · Statements · Cash · Receivables & Inventory · Plant Assets, Notes & Payroll · Partnerships & Corporations · Ratios
Lesson: schoollaunch.org/courses/business/accounting/#unit-1 · Original School Launch material.
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AccountingAccounting · Units 1–9 · continued

14Liabilities & Owner’s Equity

Three forms of ownership
Sole proprietorshipPartnershipCorporation
Owner’s equity accountsCapitala Capital account per partnerCommon Stock, Additional Paid-in Capital, Retained Earnings
Cash to ownersDrawingDrawing (each partner)Dividends, declared by the board
Statementowner’s equitypartners’ equityretained earnings
Owners’ liabilityunlimitedunlimited (general partners)limited to the investment
Income taxownerpartnerscorporation, then stockholders on dividends

Notes and interest Worked

30,000 × 6% × 1/12 = 150 a monthI = P × r × t
90-day note: 4,000 × 9% × 90/360 = 90360-day year
Repay: Dr Notes Payable 4,000; Dr Interest Expense 90; Cr Cash 4,090

Issue stock; pay a dividend Worked

1,000 shares, $1 par, at $12: Dr Cash 12,000; Cr Common Stock 1,000; Cr Paid-in Capital 11,000
Declare $0.50 a share: Dr Retained Earnings 500; Cr Dividends Payable 500record date: no entry
Pay: Dr Dividends Payable 500; Cr Cash 500

Bonds, simply Worked

10-year, 100,000 face, 5%, paid semiannually
Cash interest = 100,000 × 5% × ½ = 2,500
Sold at 98 (market rate above 5%): discount 2,000 ÷ 20 = 100straight-line
Interest expense = 2,500 + 100 = 2,600
Current
due within a year: payables, unearned revenue, current part of long-term debt
Long-term
notes, mortgages, bonds, most leases over 12 months
Contingent
record if probable and estimable; else disclose if reasonably possible

Retained earnings

4,000 + 3,200 − 500 = 6,700. Retained earnings are not cash.

Beginning RE + Net income − Dividends

Splitting partnership income Worked

Net income 30,000; salaries A 10,000, B 8,000
5% on capital: A 1,000; B 500
Remainder 10,500 split equally: 5,250 each
A 16,250; B 13,750total 30,000

“Owe no man any thing, but to love one another” (Romans 13:8, KJV)

15Common Errors & Fixes

Ten common slips
SlipRight way
Withdrawal recorded as an expenseDr Drawing; it never touches the income statement
Owner investment recorded as revenueCr Capital
Depreciating landland is never depreciated
Crediting Equipment for depreciationcredit Accumulated Depreciation
Cash in an adjusting entryadjustments never touch Cash
Supplies expense = supplies on handexpense = supplies used
Paying a bill on account as an expenseDr Accounts Payable; the expense was recorded with the bill
Balance sheet dated “For the year ended”one date: “December 31, 2026”
Outstanding checks on the book sidethey go on the bank side
Debiting Bad Debt Expense at write-off (allowance method)Dr Allowance; the expense came with the estimate
Finding the difference
Trial balance off by…Look for
the amount of one entrya posting left out, or one side not posted
twice an amount (÷ 2)a debit posted as a credit, or the reverse
a multiple of 9 (÷ 9)transposition (540 as 450: off by 90) or slide (1,250 as 125: off by 1,125)
a round 10, 100, 1,000an addition error

“A false balance is abomination to the LORD: but a just weight is his delight.” (Proverbs 11:1, KJV)

Correcting entry Worked

Utility bill 1,100 was debited to Rent Expensealready posted
Dr Utilities Expense 1,100; Cr Rent Expense 1,100move it
Never erase a posted entry: the correction leaves an audit trail

Balanced is not the same as right

A trial balance can balance with the wrong account, a missing entry or two offsetting errors. Trace the source document.

Check before you hand it in

  • Every entry: debits = credits, with an explanation.
  • Trial balance, adjusted trial balance and post-closing trial balance all balance.
  • Net income on the income statement = the figure in the statement of owner’s equity.
  • Balance sheet balances; ending cash = cash-flow statement’s ending cash.