Attestation is the most consequential step in the RefundDesk workflow. This page explains exactly what you're confirming, what gets recorded, and what to verify before you proceed.
For licensed customs brokers · Questions: hello@refunddesk.app
For every entry in your batch, the following is frozen permanently the moment you attest:
| Field | What it means |
|---|---|
| principal_cents | The duty amount being claimed, in cents |
| cape_bucket | The CAPE quarter this entry falls into (e.g. CAPE Q1 2025) |
| filing_track | CAPE or Protest |
| annual_rate | The IRS interest rate in effect for this entry's quarter |
| rate_source | The IRS Revenue Ruling that set that rate (e.g. Rev. Rul. 2025-6) |
| from_date / to_date | The interest accrual window |
| days | Exact days of interest accrual |
| interest_cents | Calculated statutory interest |
| formula | The literal arithmetic — e.g. 2631600 × 0.08 × 135/365 |
| statute | 19 U.S.C. § 1505(c) — the authority for interest |
| ieepa_code_prefixes | The Chapter 99 HTS codes active at the time of attestation |
None of these values can be changed after attestation. Not by you, not by RefundDesk, not by anyone.
In addition to the calculation snapshot, RefundDesk records at the moment of attestation:
These records are retained for 5 years per 19 CFR §111.23 and can be provided to CBP on request.
RefundDesk calculates statutory interest under 19 U.S.C. § 1505(c) using the IRS underpayment rate set quarterly under 26 U.S.C. §§ 6621–6622. The rate is applied on a simple interest basis: principal × annual_rate × (days / 365).
The rate applied to each entry is frozen in the snapshot at attestation. If the IRS revises a rate after you attest, your record shows what rate was in effect when you signed.
CAPE Declaration CSVs submitted through ACE contain entry numbers but not entry deposit dates. CBP's ACE system does not expose the original deposit date in broker-accessible exports (per CSMS #68340863). RefundDesk uses entry_date as the closest available approximation — the standard practice for CAPE interest calculations. The from_date in your snapshot reflects this and is permanently documented so that if CBP requests clarification, the answer is already in the record.
After you attest, RefundDesk monitors whether the live classification of your entries still matches what was frozen in your snapshot. If a CAPE eligibility rule changes — for example, an HTS prefix is added or removed from the active IEEPA list — the audit dashboard flags entries where the current classification differs from what you attested to.
This does not invalidate your filing. Your attestation captured the rules as they existed when you signed. The divergence flag documents that the regulatory landscape has shifted since your filing.
Once you attest, RefundDesk generates and makes available for download:
You upload the CAPE Declaration CSV directly to ACE through the CAPE tab. RefundDesk does not transmit any documents to CBP.
The admin audit dashboard at /admin/filing_batches surfaces, for any batch:
This statement is recorded verbatim alongside your IP address and timestamp. It does not change between filings.