You estimate an interest adjustment. Your lender gives you a different number.

What did each calculation include?

A quick estimate compresses an account's history into a few inputs. A lender has records of individual balances, rates, payments and charges. Before deciding that either number is wrong, compare the assumptions. An unexplained difference deserves a breakdown; the estimate alone does not prove an underpayment.

First, identify the adjustment you are checking

For qualifying pre-service debt, the Servicemembers Civil Relief Act limits covered interest to 6% annually. The Justice Department explains that excess interest must be forgiven retroactively and excess interest already paid must be refunded. These are related obligations, but a reduction in unpaid charges is different from returning money you already paid.

Ask your creditor or servicer to identify what it adjusted and how the adjustment appears on your account. Keep any earlier SCRA credits beside the new explanation so you do not count the same correction twice.

The account still needs to qualify. An estimated amount does not establish that the debt or service period is covered.

Two accurate averages can still give a different answer

For the first 90 days, the balance stays at $10,000 and the APR is 24%. For the next 90, the balance stays at $5,000 and the APR is 12%. Calculate the amount above the 6% cap separately for each period:

Hypothetical excess interest, preserving each period's balance and APR
Period and assumptionsSimplified excess interest
First 90 days
$10,000 at 24% APR
18 percentage points above 6%
$10,000 × 0.18 × 90 ÷ 365
$443.84
Next 90 days
$5,000 at 12% APR
6 percentage points above 6%
$5,000 × 0.06 × 90 ÷ 365
$73.97
Total for 180 days$517.81
Calculated before rounding to cents

Each row uses balance × rate above 6% × days ÷ 365. Now average the two balances: $7,500. Average the two APRs: 18%. Because the periods are equal in length, both are accurate time averages. Put those into one simplified calculation:

$7,500 × (18% − 6%) × 180 ÷ 365 = $443.84.

That is $73.97 less than the calculation that preserves the two periods. The larger balance existed while the rate was higher; separate averages erased that relationship.

This does not mean averages always fail. With one constant APR, a correctly time-weighted average balance gives the same answer under these simple assumptions. Nor is the difference always in this direction: different pairings can make a shortcut overstate the result. The example demonstrates a limitation, not a correction factor to apply to your account.

Read the balance categories, not just the headline APR

Credit-card statements can contain balances at different rates. The Consumer Financial Protection Bureau explains that purchases and cash advances may carry different APRs, and statements show the balance in each rate category. Payment timing and grace periods can also affect interest.

A single average APR cannot reconstruct all of those details. Ask which balances and rates the lender used for each period, and compare that explanation with your statements.

Also ask which daily-rate convention and compounding method it used. The CFPB notes that issuers may divide APR by 360 or 365 when calculating a daily rate. Our example's 365-day assumption is not a claim about your agreement.

Check dates and fees separately

Compare the lender's covered dates with the dates in your estimate. For most qualifying debt, the federal reduction covers military service; mortgages can have an additional year afterward. Have the lender explain the service period it recognized, especially if your records contain multiple orders or extensions. The CFPB's SCRA guidance explains these coverage periods.

Fees need their own line of inquiry. The statute's definition of interest includes charges and fees, with an exception for bona fide insurance. An APR-only comparison can therefore omit relevant charges. That does not make every fee a separate automatic refund: ask how each charge was treated within the cap calculation.

Ask for five concrete answers

Send these questions through the creditor's verified channel for your account:

  1. Which account and covered dates did you use?Ask for any excluded period and its reason.
  2. Which balances and APRs did you use?Request a period-by-period breakdown, including separate rate categories where relevant.
  3. How did you treat fees and daily interest?Ask for included charges, exclusions, day-count convention and any compounding.
  4. What had already been corrected?Identify prior credits and distinguish unpaid interest removed from excess interest previously paid.
  5. Where does the adjustment appear?Ask for the posting date, amount and explanation of any remaining difference.

Keep copies of the request and response. Share supporting records only through the provider's verified document channel, not a social-media reply or ordinary support message to Orders First.

If you need the next step for a particular provider, use the bank and credit-union directory. Our review of request instructions explains why a general help line and a document destination can be different routes.

An estimate should help the request move forward

Do not postpone the request while trying to perfect a spreadsheet. The federal written-request deadline is no later than 180 days after military service ends, with appropriate proof of service. Follow DOJ's request instructions and the verified process for your account.

If the explanation remains unresolved, a military legal-assistance office can help with your situation. You can also submit a financial-company complaint to the CFPB. Seek legal help promptly for threatened repossession, foreclosure or a court deadline; do not wait for a calculation dispute to run its course.

Orders First's estimator uses average inputs for a rough comparison. It does not reconstruct account history or review statements. Use the result to frame questions; the creditor or servicer determines eligibility and performs the final calculation.

Estimate a possible adjustment