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Course Library · Lesson 6 of 6
Money · Guided lesson

Audit the next card statement

About 11 minutes · 3 reading + 8 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

A reconciled fictional card statement with daily-interest estimate, grace-period decision, payment allocation and a deadline plan.

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

What to include

  • A reconciled credit-card transaction register and statement check.
  • A billing-cycle timeline with current balance, statement balance and applicable payment action.
  • A balance-days interest worksheet with rate units and calculation limits.
  • A payment-allocation ledger with category balances and a total-debt check.
  • A promotional repayment calendar with a full-payoff check and offer-type comparison.
  • A next-statement audit with credited payments, new charges and an exception note.

Review and revise

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

  • All supplied records reconcile and the decision uses the named case rules.
  • Calculations show units, intermediate values and a second check.
  • Changed-input practice revises the affected result and identifies uncertainty.
  • The final project combines six lesson records, separates fictional assumptions from current rules, and states a supported next step.
Open the full course project
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Before you begin

The idea in everyday life

This is an original fictional practice case. No account, payment, personal record or outside participation is required. Prior statement $205; credited payment $205; new purchases $90; new fee $0; interest $0. Case purchase grace conditions are maintained.

The idea

Check what actually posted after the planned payment; a successful plan and a correct next statement require separate evidence.

Follow along

Audit the next card statement — worked practice

Check what actually posted after the planned payment; a successful plan and a correct next statement require separate evidence.

Use paper or a local table; label all amounts as fictional USD unless the case names another unit. Prior statement $205; credited payment $205; new purchases $90; new fee $0; interest $0. Case purchase grace conditions are maintained.

Next-cycle activity

Paste at A1.

ARecordBSigned balance effect USD
Opening statement205
Credited payment-205
New purchases90
New fee0
Interest0

Copy as plain text
  1. 1. Step 1: Carry forward the old statement balance

    Carry forward the old statement balance.

    You should see: $205.

    Check what actually posted after the planned payment; a successful plan and a correct next statement require separate evidence.

  2. 2. Step 2: Match the credited payment to that balance

    Match the credited payment to that balance.

    You should see: 205−205=$0 old debt.

    Keep this intermediate result so the final decision can be checked.

  3. 3. Step 3: Add only the new cycle’s stated activity

    Add only the new cycle’s stated activity.

    You should see: New closing balance $90.

    Keep this intermediate result so the final decision can be checked.

  4. 4. Step 4: Write a review and error-question record

    Write a review and error-question record.

    You should see: Expected $90; investigate any unmatched interest or fees instead of deleting them.

    Keep this intermediate result so the final decision can be checked.

Now change one thing

A supported $15 annual-fee charge is added in the new cycle. Closing balance?

Your work

What to finish

A next-statement audit with credited payments, new charges and an exception note.

Common mistake

Watch for this

Assuming full payment eliminates every later fee or residual-interest question.

How can I tell I understand it?

Reconcile a next-cycle card statement and identify an unsupported charge for inquiry on a new supplied case, with a visible intermediate check and no unsupported real-world promise.

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.

1$300 opening debt −$300 credited payment +$70 new purchases +$10 fee: closing?
2A next statement includes unexplained residual interest. Best response?
3What supports completing this card project?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
6
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.

Go to the knowledge check
Tools, templates, and lesson sources

Tools and templates

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Sources and further reading

Explore the references behind this lesson.

CFPB — Credit cards
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Readable official webpage inspected with the web reader on 2026-10-01. No interactive-tool operation is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

CFPB — What is a grace period for a credit card?
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Readable official webpage inspected with the web reader on 2026-10-01. No interactive-tool operation is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

CFPB — How does my credit card company calculate the amount of interest I owe?
Source & access notes · checked 2026-10-01

Official page opened/read during Money expansion authoring; checked the relevant concept and access state. These sources do not establish funding eligibility.

Access: Readable official webpage inspected with the web reader on 2026-10-01. No interactive-tool operation is claimed.

Reuse: Original fictional practice, questions and calculations; paraphrased concepts with a source link. No source exercise copied.

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