Every recurring deadline on this site, on one calendar

Key takeaways

• The whole routine is roughly two minutes a day, fifteen minutes a week and an hour a month, plus four quarterly reviews and a handful of fixed dates.
• The fixed dates matter most because missing them cannot be corrected later: September 30 for the Q4 inventory position, October 15 for peak fulfillment rates, and the deal submission deadlines before each tentpole event.
• The deadlines that expire quietly are the dangerous ones — the 180-day customs protest window per entry, the 90-day appeal window, and the 150-day inventory review that precedes the aged-inventory trigger.
• Two annual reviews are easy to skip and expensive to skip: classification against the current tariff schedule, and the user-fee inflation adjustment effective October 1.
• Every item links to the guide that explains why it is on the list.

This site now runs to around ninety guides, and most of them end with something to check on a schedule. Collected, those instructions turn out to be a small routine rather than a large one.

01Daily — two minutes

Account Health dashboard. Order Defect Rate, late shipment rate, cancellation rate, policy notifications. ODR notifications arrive arriving after you cross 1%, which makes this the only early warning that exists. → Order defect rate

That is the entire daily list.

02Weekly — fifteen minutes

Feedback Manager for new negative entries, including any eligible for removal. → ODR

A-to-z claims — respond immediately rather than letting them auto-grant.

Capacity and IPI, particularly in the run-up to Q4. → IPI and restock limits

Days of cover per SKU against the 28-day floor. → Forecasting

Advertising search terms — mine converting keywords, cut the rest. → PPC benchmarks

03Monthly — about an hour

Inventory age report. The 150-day review, ahead of the day-181 aged-inventory surcharge. → Removal decision

Storage fee report. What you were actually charged, per ASIN. → Storage

SKU Economics Report for the returns processing fee — deducted between the 7th and 15th of the third month after shipment, which is why it needs looking for. → Returns

Return rate per ASIN and reason codes. → Returns

Brand Analytics, if enrolled. Free, and rarely opened. → Brand tools

Stranded inventory — resolve within 48 hours as a standing habit. → Listing disappeared

04Quarterly

Rebuild landed cost per unit. Duty rates, freight, user fees. → Landed cost · Tariff stack

Fee Preview on your top twenty SKUs. Since price bands became an input, published averages do not describe you. → Price bands

Settlement reports for order-to-cash timing and effective currency conversion rate. → DD+7 · Currency

Actual lead times against assumed ones, per supplier and freight mode. → Forecasting

Automated message templates against current policy. → Buyer-seller messaging

05The fixed dates

These cannot be caught up later.

Date	What
~5 Aug / 5 Sep	Early-bird deal submission deadlines for the autumn events → Deals
September 30	Last day to fix a Q4 inventory position at off-peak rates → Peak season
October 1	Q4 storage rates begin; user-fee inflation adjustments take effect → Storage · Landed cost
October 15	Peak fulfillment fees begin (2026: to January 14, 2027, avg +$0.32/unit, 3.5% surcharge on top) → Peak fee
~October 21	Amazon’s minimal-split FBA inbound deadline for Black Friday / Cyber Monday (2026) → Placement
January 14	Peak fulfillment fees end — relevant to January clearance timing
January	Amazon’s recent pattern for annual US fee changes → Fee changes

The two most consequential are September 30 and October 15, and they are two weeks apart. Everything you want fixed before peak has to be fixed before the first; everything you want fulfilled at standard rates has to ship before the second.

06The windows that expire quietly

No notification, no reminder, and each one runs on its own clock.

180 days from liquidation, per entry — the customs protest window for recovering overpaid duty. → Prior disclosure and protests

90 days — the appeal window on a deactivated account, and the reported fund settlement period. → Suspension

~72 hours — to produce a compliance certificate on request. Retrieval time, not testing time. → US compliance

60 days — your lowest price in this window caps your next deal price. → Deals

14 days — the attribution window before judging an external campaign. → Attribution

30 days — the buyer-seller messaging window.

07Annually

Classification review against the current tariff schedule. The 2026 edition was published on December 31, 2025 with Revision 4 by February 25 — a code correct two years ago may not be correct now. → Tariff engineering

Supplier re-verification. Registry status, court records, ownership. Verification is not a one-time event. → Supplier verification

GS1 renewal, if you hold a prefix. A lapse causes listing problems with no obvious cause. → Barcodes

Trademark renewal. Brand Registry access depends on it. → Brand Registry

Insurance renewal and limits review. → Insurance

Customs bond adequacy against current duty spend — the amount scales with duty, and duty rose. → Customs bonds

08The two ahead

September 22, 2026 — CBP Entry Type 13 voluntary test for mail shipments begins.

July 1, 2027 — Section 321 repealed for commercial shipments by statute.

→ Section 321 repeal

09What to do

Put the daily check in a calendar, not in your intentions. Two minutes, and it is the only early warning for the metric that suspends accounts by itself.

Block one hour a month for the monthly list. It is where the 150-day inventory review and the delayed returns fee both live.

Diarise September 30 and October 15 now.

Set a reminder for any 180-day protest deadline the moment you learn an entry may be affected. Nothing else will remind you.

Do the annual reviews in a quiet month — reporting on the SFP guide names January to early June and August to mid-October as the low-pressure windows, and the same logic applies to any review that needs attention.

Put September 30 and October 15 in your calendar now, two weeks apart, with the words “last off-peak day” and “peak fee starts”. Everything else on this page can slip a week; those two cannot.

Frequently asked

How much time does all this take?

Roughly two minutes a day, fifteen minutes a week and an hour a month, plus four quarterly reviews and a short annual list. The fixed calendar dates take no time but cannot be caught up later.

Which dates matter most?

September 30, the last day to fix a Q4 inventory position at off-peak rates, and October 15, when peak fulfillment fees begin. They are two weeks apart and between them they decide most of a Q4 cost position.

Which deadlines expire without warning?

The 180-day customs protest window, which runs per entry from its own liquidation date; the 90-day appeal window; the roughly 72-hour compliance certificate window; and the 60-day price history that caps your next deal price.

What is the single most important daily check?

The Account Health dashboard. ODR notifications arriving after you cross the 1% threshold rather than while trending toward it, which makes your own daily check the only early warning available.

Why review classification annually?

Because the tariff schedule moves — the 2026 edition was published on December 31, 2025 with Revision 4 by February 25 — and because duty now applies to traffic that previously entered free, so an outdated code costs more than it used to.

When should I do the annual reviews?

In a quiet month. January to early June and August to mid-October are described as the low-pressure windows, and every annual item here needs attention rather than speed.

Sources

1. Holiday 2026: same fees, same eligibility, earlier deadlines (peak fulfillment October 15, 2026 to January 14, 2027; minimal-split inbound deadline; deal submission deadlines), Amazon Seller Central, Seller Forums announcement, July 7, 2026 Primary source accessed 2026-09-05
2. 2026 US Referral and FBA fee changes summary (aged inventory surcharge from day 181; January fee cycle), Amazon Seller Central Help Primary source accessed 2026-09-05
3. Amazon Order Defect Rate (daily Account Health checks; reactive notifications arriving after the threshold is crossed; weekly Feedback Manager review and immediate A-to-z response), Feedvisor Secondary accessed 2026-09-05
4. Amazon returns processing fees: 2026 rate card (deduction between the 7th and 15th of the third month following shipment; SKU Economics Report), Feedvisor Secondary accessed 2026-09-05
5. Amazon freezes 2026 holiday seller fees (peak fulfillment from October 15, 2026 to January 14, 2027; early-bird deal deadlines of August 5 and September 5, 2026), PPC Land Secondary accessed 2026-09-05
6. Reduce import duty US 2026 (protest within 180 days of the liquidation date, checked per entry), Carra Globe Secondary accessed 2026-09-05
7. Using tariff engineering to lower your 2026 import costs (2026 Basic Edition published December 31, 2025 and Revision 4 on February 25, 2026), Dedola Secondary accessed 2026-09-05
8. Amazon Seller Fulfilled Prime: the complete guide for 2026 (January to early June and August to mid-October as the low-pressure operating windows), EcomBrainly Secondary accessed 2026-09-05
9. The end of de minimis: new US entry processes (Entry Type 13 test from September 22, 2026; Section 321 repeal effective July 1, 2027), Avalara Secondary accessed 2026-09-05