The Life Starter
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Course Library · Lesson 1 of 6
Money · Guided lesson

Organize the eight source documents

About 27 minutes · 7 reading + 20 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

A fictional bookkeeping close packet with source documents, journal entries, ledgers, bank reconciliation, financial summaries and a short cash forecast. Assemble and revise the six lesson outputs into one clearly labeled fictional practice packet.

Keep your working files in your own notebook or software. Save a private description, checklist, and work link in My Proof.

What to include

  • Register all eight source documents with linked payments and unpaid balances.
  • Provide the chart of accounts, journal, ledgers and initial trial balance.
  • Reconcile bank and book cash with supported adjusting entries.
  • Separate simplified profit from cash and build the two-week forecast.
  • Assemble a balanced final position summary and a clear limitations note.

Review and revise

Use these criteria to check your work and choose what to improve.

  • Accuracy: amounts, classifications and decisions agree with the supplied evidence and stated assumptions.
  • Reasoning: each important choice names the rule, observation or comparison that supports it.
  • Responsible scope: the packet protects information, respects authority limits and routes unresolved concerns appropriately.
  • Usability: a new reader can follow the ordered lesson outputs, identify ownership and see what is complete or still uncertain.
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Before you begin

The idea in everyday life

Small organizations need a traceable record of receipts, purchases, amounts owed and payments. A bank statement alone may not explain the purpose or timing of each transaction. Start by organizing source documents before posting entries. This course uses an invented small service studio and simplified accrual records; no real bank account, business ownership or sensitive documents are needed.

The idea

The record explains what happened; the bookkeeping entry explains its financial effect.

Try it

One step at a time.

Use the sample or information you have permission to use. Keep your work as you go. You can pause between steps.

  1. 1

    Make a table called a document register. Use columns for document ID, event, amount, cash movement, related document, and unanswered question. Enter all eight documents. Link a purchase or service to its later payment, but keep their records separate.

  2. 2

    Mark which events move cash now and which create or reduce an amount owed. Do not assume an invoice means cash arrived, or a payment means a new expense occurred.

  3. 3

    Link D6 to the earlier customer invoice and D8 to the supplies purchase. Calculate the unpaid portion of each without yet deciding every account entry.

  4. 4

    Assign a consistent storage label to each fictional document and note who would review unclear evidence. Keep jurisdiction-specific tax categories and retention periods out of the register unless separately verified by qualified staff.

Example

See how it works.

Fictional practice: Oak Studio begins with zero balances. Its month contains eight documents: D1 owner contributes $1,000 cash; D2 equipment bought for $200 cash; D3 completed services invoiced for $300; D4 completed services paid immediately, $150; D5 rent paid, $100; D6 customer pays $200 toward D3; D7 unused supplies bought on account for $80; D8 supplier paid $50 toward D7. The register links D6 to D3 and D8 to D7 so payments are not mistaken for new sales or purchases. “On account” means payment is due later. All amounts are fictional examples in U.S. dollars (USD), with taxes and depreciation outside the exercise.

Check your work

Did you cover these?

  • All eight documents appear once.
  • D3 has $100 unpaid and D7 has $30 unpaid after their payments.
  • Cash timing is separated from the underlying business event.
Your work

What to finish

An eight-document transaction register with invoice/payment links and unpaid balances.

Common mistake

Watch for this

Recording an invoice and its collection as two separate sales.

How can I tell I understand it?

You can demonstrate all three checks and explain the evidence behind your choices without consulting the worked example.

Try 3 questions

Quick knowledge check

Answer all 3 questions. Get at least 2 right and the lesson completes automatically.

Not yet passed

You’ll get an explanation for each answer. Signed in? Your results save to your account.

1A $500 service invoice is followed by a $300 payment toward it. Remaining receivable?
2An organization buys $90 of supplies on account and later pays $40. Which document relationship is correct?
3A bank withdrawal’s purpose is unfamiliar. What evidence best supports choosing its bookkeeping classification?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
1
Finish this lesson

Pass the check. We’ll save the progress.

Answer all 3 questions above and get at least 2 right. You can review the explanations and try again.

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Sources and further reading

Explore the references behind this lesson.

IRS — Recordkeeping
Source & access notes · checked 2026-09-10

Opened supporting-document and record-system guidance. Used only for business evidence and transaction records. Course gives no tax classifications, filing instructions or universal retention periods.

Access: Free page readable without an account; optional further study only.

Reuse: Reference for original Life Starter instruction. Free access does not grant unrestricted reuse; no source exercises, logos or syllabi are copied. Check the source license before redistributing its material.

OpenStax, Rice University — Journal Entries and T-Accounts
Source & access notes · checked 2026-09-10

Opened and read journal structure, balanced entries, assets, liabilities, earned revenue and postings. All amounts, organizations and transaction sequences in this course are newly authored.

Access: Free page readable without an account; optional further study only.

Reuse: Reference for original Life Starter instruction. Free access does not grant unrestricted reuse; no source exercises, logos or syllabi are copied. Check the source license before redistributing its material.

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