1099-K Reconciliation

When to use this

• Year-end tax prep and the 1099-K does not match the deposits.
• Working with a CPA who needs the breakdown.
• A first 1099-K and the seller is confused by the gross number.
• Quarterly estimated taxes and the seller wants to know the real revenue.

The framework. The Gross-to-Net Bridge

Gross sales (1099-K Box 1)
  minus  Refunds and returns           → Schedule C: Returns and allowances
  minus  Amazon selling fees (referral + FBA + storage) → Schedule C: Commissions/fees
  minus  Advertising spend             → Schedule C: Advertising
  minus  Other deductions (reimbursements net, removals, etc.)
  =      Net cash to bank

Step by step

1. Collect inputs. The 1099-K (Box 1 total), Amazon's Payments Date Range summary for the same year, refund total, and ad spend total. If the seller exports the year-end summary report, it contains most of these.
2. Build the bridge. Each line from gross to net, with the dollar value.
3. Reconcile. Total bridge should match the bank deposits to within a small timing variance. Investigate any large gap.
4. Map to Schedule C. Per-line Schedule C field name, ready to hand to a CPA.
5. Flag the common surprises. Sales tax collected and remitted by Amazon usually passes through but is shown gross. Some categories or marketplaces have different treatments. Note them.
6. Quarterly extension. For estimated tax planning, run the same bridge on the trailing quarter.
7. Run the quality check, then deliver.

Output format

## 1099-K Reconciliation. [year]

1099-K Box 1 gross: [$]

### Gross-to-net bridge
Refunds and returns:        [-$]   Schedule C line: Returns and allowances
Amazon selling fees:        [-$]   Schedule C line: Commissions and fees
Advertising:                [-$]   Schedule C line: Advertising
Other deductions:           [-$]   Schedule C line: Other expenses
Net to bank:                [$]

Bank deposits reported:     [$]   Variance: [$]

### Notes for CPA
[sales tax pass-through, marketplace facilitator status, etc.]

Worked example

Quality check

• Every line on the bridge is sourced from Amazon's own reports, not estimated.
• Each line is mapped to a specific Schedule C field.
• The reconciliation explains any variance against bank deposits.
• Marketplace facilitator and sales tax pass-through are noted, not ignored.

Common mistakes

• Reporting net only. Showing 480k of revenue when the 1099-K to the IRS says 1.2M. instant red flag for an audit.
• Missing the fee deduction. Paying tax on the gross because the deductions were never separated out.
• Confusing timing variance with an error. December sales paid in January cause a small gap. it is timing, not a bookkeeping error.
• Treating sales tax as income. Amazon often collects and remits the tax. it is not the seller's income, but it shows up in the gross.

Built by Jay GPT Pro