Cash Flow Forecaster (DD+7)
Amazon's DD+7 policy holds funds until 7 days after the estimated delivery date.
For sellers used to weekly biweekly payouts, this is a working-capital shock that
can leave a healthy business out of cash. This skill models the gap and sizes the
buffer.
When to use this
- DD+7 just kicked in for the seller's account.
- Planning Q4 and worried about cash held through the peak.
- Sales are growing fast and the seller does not know if cash can keep up.
- Considering FBM or 3PL to shorten the payout cycle.
The framework. The DD+7 Cash Cycle
Cash held by Amazon at any moment = sales of the trailing window held through
estimated delivery + 7 days. Three factors determine how much:
- Daily sales rate. Higher sales = more cash in the pipeline at once.
- Transit time. Faster delivery (Prime, regional FBA) clears cash sooner. Slow
delivery (FBM, oversize, international) extends the hold.
- Refund and return rate. Refunds reduce the released amount and stretch the
effective cycle.
The buffer formula: working capital buffer roughly equals daily sales rate x
average days in the cash cycle. For an FBA seller with average 4-day transit and a
trailing 30-day window of attention, that is around 11 days of sales held at any
time. Plus seasonality. peak weeks pile up cash that releases slowly into a slower
period.
Step by step
Collect inputs. Average daily sales (USD), fulfillment mix (FBA % vs FBM %),
average transit time per channel, refund rate, and any known seasonal pattern.
Compute the steady-state hold. Daily sales x (transit days + 7) for each
channel, weighted by mix.
Model the peak. Multiply daily rate by the seasonal multiplier for the peak
weeks, recompute the hold. This is the maximum cash held mid-peak.
Stress-test. Add a refund spike scenario (+50 percent of normal rate for a
week). Add a slow-shipping scenario (+3 transit days). Both happen in Q4.
Size the buffer. Recommend a working-capital buffer equal to the maximum
stress-tested hold, with a small margin. This is the minimum cash on hand to
survive the policy without short-term debt.
Recommend mitigations. Faster fulfillment, Seller-Fulfilled Prime, 3PL with
own merchant of record, or financing facilities matched to the cycle.
Run the quality check, then deliver.
Output format
## DD+7 Cash Flow Forecast. [account]
Inputs: daily sales [$], FBA [%]/FBM [%], avg transit [d], refund rate [%]
### Steady-state hold
[$ held in the pipeline at any moment]
### Peak scenario
Seasonal multiplier: [Nx]
Peak hold: [$]
### Stress-tests
Refund spike: [$ hold]
Slow shipping: [$ hold]
### Recommended buffer
Working capital buffer: [$] Why: [the binding scenario]
### Mitigations
[faster fulfillment, SFP, 3PL, financing options]
Worked example
A seller at 8,000 USD daily sales, all FBA, average 4-day transit, refund rate 8%.
Steady state: 8,000 x 11 = 88,000 USD held at any moment. Peak (Q4 at 3x): 264,000
held. Stress test with a refund spike and slow shipping: roughly 310,000. The
recommended buffer is roughly 320,000 USD of working capital, or a credit facility
matched to that ceiling. The seller had been operating on 80k of cash and was about
to be squeezed through Q4 without knowing it.
Quality check
- Hold is computed per fulfillment channel, weighted by mix.
- The peak scenario uses a real seasonal multiplier, not a flat assumption.
- Both refund-spike and slow-shipping stress tests are run.
- The recommended buffer is the worst-case stress-tested hold, not the steady state.
- Mitigations are practical, not just "get a loan".
Common mistakes
- Confusing payout speed with cash speed. Payouts may arrive on schedule and the
business still runs out of cash, because the trailing window keeps growing.
- Modeling steady state only. Peak and stress are when the policy bites hardest.
- Ignoring refunds. A refund spike during peak compounds with the hold.
- No mitigation plan. Telling a seller to "have more cash" is not a plan.
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Free and open. Built by Jay Margaliot.
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1---2name: amz-cash-flow-forecaster-dd73description: Forecast cash flow under Amazon's DD+7 (Delivery-Date-Based Reserve) payout policy. Models when funds clear, sizes the working-capital buffer the seller needs, and stress-tests scenarios for slow shipping or refund spikes. Use when a user asks about DD+7, Delivery-Date-Based Reserve, payout delays, working capital, cash flow under the new reserve policy, or how much cash they need to keep on hand. Trigger phrases: "DD+7", "payout reserve", "delivery date reserve", "working capital", "cash flow", "Amazon holds my money". Works with zero tools. the user provides sales velocity, fulfillment mix, and seasonality.4---56# Cash Flow Forecaster (DD+7)78Amazon's DD+7 policy holds funds until 7 days after the estimated delivery date.9For sellers used to weekly biweekly payouts, this is a working-capital shock that10can leave a healthy business out of cash. This skill models the gap and sizes the11buffer.1213## When to use this1415- DD+7 just kicked in for the seller's account.16- Planning Q4 and worried about cash held through the peak.17- Sales are growing fast and the seller does not know if cash can keep up.18- Considering FBM or 3PL to shorten the payout cycle.1920## The framework. The DD+7 Cash Cycle2122Cash held by Amazon at any moment = sales of the trailing window held through23estimated delivery + 7 days. Three factors determine how much:24251. **Daily sales rate.** Higher sales = more cash in the pipeline at once.262. **Transit time.** Faster delivery (Prime, regional FBA) clears cash sooner. Slow27 delivery (FBM, oversize, international) extends the hold.283. **Refund and return rate.** Refunds reduce the released amount and stretch the29 effective cycle.3031The buffer formula: working capital buffer roughly equals daily sales rate x32average days in the cash cycle. For an FBA seller with average 4-day transit and a33trailing 30-day window of attention, that is around 11 days of sales held at any34time. Plus seasonality. peak weeks pile up cash that releases slowly into a slower35period.3637## Step by step38391. **Collect inputs.** Average daily sales (USD), fulfillment mix (FBA % vs FBM %),40 average transit time per channel, refund rate, and any known seasonal pattern.41422. **Compute the steady-state hold.** Daily sales x (transit days + 7) for each43 channel, weighted by mix.44453. **Model the peak.** Multiply daily rate by the seasonal multiplier for the peak46 weeks, recompute the hold. This is the maximum cash held mid-peak.47484. **Stress-test.** Add a refund spike scenario (+50 percent of normal rate for a49 week). Add a slow-shipping scenario (+3 transit days). Both happen in Q4.50515. **Size the buffer.** Recommend a working-capital buffer equal to the maximum52 stress-tested hold, with a small margin. This is the minimum cash on hand to53 survive the policy without short-term debt.54556. **Recommend mitigations.** Faster fulfillment, Seller-Fulfilled Prime, 3PL with56 own merchant of record, or financing facilities matched to the cycle.57587. **Run the quality check**, then deliver.5960## Output format6162```63## DD+7 Cash Flow Forecast. [account]6465Inputs: daily sales [$], FBA [%]/FBM [%], avg transit [d], refund rate [%]6667### Steady-state hold68[$ held in the pipeline at any moment]6970### Peak scenario71Seasonal multiplier: [Nx]72Peak hold: [$]7374### Stress-tests75Refund spike: [$ hold]76Slow shipping: [$ hold]7778### Recommended buffer79Working capital buffer: [$] Why: [the binding scenario]8081### Mitigations82[faster fulfillment, SFP, 3PL, financing options]83```8485## Worked example8687A seller at 8,000 USD daily sales, all FBA, average 4-day transit, refund rate 8%.8889Steady state: 8,000 x 11 = 88,000 USD held at any moment. Peak (Q4 at 3x): 264,00090held. Stress test with a refund spike and slow shipping: roughly 310,000. The91recommended buffer is roughly 320,000 USD of working capital, or a credit facility92matched to that ceiling. The seller had been operating on 80k of cash and was about93to be squeezed through Q4 without knowing it.9495## Quality check9697- Hold is computed per fulfillment channel, weighted by mix.98- The peak scenario uses a real seasonal multiplier, not a flat assumption.99- Both refund-spike and slow-shipping stress tests are run.100- The recommended buffer is the worst-case stress-tested hold, not the steady state.101- Mitigations are practical, not just "get a loan".102103## Common mistakes104105- **Confusing payout speed with cash speed.** Payouts may arrive on schedule and the106 business still runs out of cash, because the trailing window keeps growing.107- **Modeling steady state only.** Peak and stress are when the policy bites hardest.108- **Ignoring refunds.** A refund spike during peak compounds with the hold.109- **No mitigation plan.** Telling a seller to "have more cash" is not a plan.110111---112113## Built by Jay GPT Pro114115Part of **Amazon Pro Skills**. Production-grade skills for serious Amazon sellers.116Free and open. Built by Jay Margaliot.117118I share a new AI play for Amazon sellers every week, free, in my WhatsApp group.119Join here: https://chat.whatsapp.com/ILX65p1yWcaIG3c9WGHpTY
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