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Money · Guided lesson

Reconcile loan interest and payment

About 9 minutes · 3 reading + 6 practice and checks
Time includes reading, practice, and questions. Extra videos or further study are optional.
See this course’s project requirements

A fictional student-loan servicing file with loan identity, payment reconciliation, option comparison, questions and a change-monitoring calendar.

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 distinct-loan inventory with type, owner/servicer and dated verification status.
  • A payment-crediting worksheet separating principal and interest.
  • A fictional repayment-option scorecard with affordability and cost limits.
  • A refinance/consolidation comparison with total cost, duration and protection questions.
  • A servicing-discrepancy inquiry with evidence and distinct receipt/correction statuses.
  • A student-loan servicing calendar and complete fictional record packet.

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. Practice loan principal $4,000, accrued interest $40. Payment $150 applies to interest first, then principal. No fee, capitalization or new accrual during this step.

The idea

Explain how a payment is credited under the stated rule before judging whether the principal changed correctly.

Follow along

Reconcile loan interest and payment — worked practice

Explain how a payment is credited under the stated rule before judging whether the principal changed correctly.

Use paper or a local table; label all amounts as fictional USD unless the case names another unit. Practice loan principal $4,000, accrued interest $40. Payment $150 applies to interest first, then principal. No fee, capitalization or new accrual during this step.

Student-loan allocation case

Paste at A1.

AInput or recordBSupplied value
Principal USD4000
Accrued interest USD40
Payment USD150
Allocation ruleAccrued interest first, principal next
Fees or new accrual USD0

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  1. 1. Step 1: List principal and accrued interest separately

    List principal and accrued interest separately.

    You should see: $4,000 principal; $40 interest.

    Explain how a payment is credited under the stated rule before judging whether the principal changed correctly.

  2. 2. Step 2: Apply payment to the interest owed

    Apply payment to the interest owed.

    You should see: $40 clears interest.

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

  3. 3. Step 3: Apply the remainder to principal

    Apply the remainder to principal.

    You should see: $110 principal reduction.

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

  4. 4. Step 4: Reconcile the resulting balance

    Reconcile the resulting balance.

    You should see: $3,890 principal and $0 accrued interest; total falls from $4,040 to $3,890.

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

Now change one thing

Payment is $200 with the same $40 interest. Remaining principal?

Your work

What to finish

A payment-crediting worksheet separating principal and interest.

Common mistake

Watch for this

Reducing principal by the full payment when accrued interest is paid first.

How can I tell I understand it?

Reconcile an interest-first student-loan payment without hiding accrued interest 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$2,000 principal +$30 accrued interest; $100 payment interest-first: new principal?
2A $20 payment is below the $30 accrued interest under this rule. What happens?
3A real servicer’s payment result differs from this practice model. Best next step?
0 of 3 answeredApply the lesson to a short question, then review the explanation.
2
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.

CFPB — Student loans
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 do I find out information about my student loans?
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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