AI Bookkeeping for Amazon Sellers
Every settlement parsed. Every FBA fee broken out. Reserves and reimbursements tracked to the cent. $79 flat, unlimited marketplaces.
Zera Books is the AI bookkeeping platform Amazon sellers actually need. It reads Seller Central settlements line by line, splits FBA fees from referral fees from reserves, tags revenue per ASIN, and reconciles the bank deposit. 99.6% accuracy across 3.2M+ documents. $79 flat per month, every marketplace included.
By Damin Mutti, founder of Zera Books. Last reviewed 2026-05-20.
Why Amazon books break generic accounting software
Amazon moved over half of all units sold through third-party sellers in 2024, and most of those sellers run their books on QuickBooks or Xero. Neither tool was built for the way Amazon pays out. A settlement is not a bank deposit. It is a reconciliation document with 30 to 50 fee buckets, reserves held back, and reimbursements applied days or weeks later. Booking the net deposit hides everything that matters.
The fracture point is the referral fee. A seller doing $1.8M on Amazon US pays roughly 15% in referral fees and another 10 to 18% in FBA fulfillment, storage, and ad spend. That is 25 to 33% of gross revenue gone before any product cost lands on the P and L. Sellers who only see the net Amazon transfer in QuickBooks have no idea their real top line is 40% higher and their real fees are eating most of the gap. AI fixes this by reading the settlement, not the bank deposit.
Five Amazon bookkeeping problems no generic tool solves
Every seller past $250K in annual GMV runs into all five. Two of them quietly break the P and L. The other three break decisions.
Settlement reports run 40 to 80 pages
A single Amazon settlement covers two weeks of activity across 30 to 50 fee buckets. Referral fees, FBA pick and pack, monthly storage, long-term storage, returns processing, removals, reimbursements. Pasting that into QuickBooks by hand takes a bookkeeper four to six hours per cycle. Zera reads the PDF in under two minutes.
FBA reserves never quite clear
Amazon holds back 3 to 7% of payouts as a reserve against chargebacks and A-to-z claims. Most accounting tools either ignore the reserve or accrue it as a single bucket. Zera books each reserve to a separate balance sheet line and releases it the period it actually settles. Cash position matches reality.
You cannot see profit per ASIN
Top three SKUs usually carry 60 to 80% of revenue. After referral fees, FBA fulfillment, storage, and ad spend, two of them are often losing money. Generic ledgers bundle Amazon revenue into one line. Zera tags revenue and direct fees per SKU so the product P and L shows true contribution margin.
Multi-marketplace books are a mess
A seller on Amazon US, Canada, UK, and Germany has four settlements in three currencies. Stripe sweeps Europe back to USD with FX losses. QuickBooks Multi-currency is fragile. Zera posts in source currency and revalues monthly so the consolidated P and L reflects actual global performance.
Sales tax collected by Amazon distorts the top line
Marketplace facilitator tax is collected and remitted by Amazon, not by you. Booking it as revenue inflates the top line and the 1099-K reconciliation breaks at year end. Zera books facilitator tax to a separate liability that clears each cycle. Gross revenue stays clean.
How Zera Books handles each one for an Amazon seller
Settlement parsing without templates
Drop any Amazon Seller Central settlement PDF or summary CSV. Zera reads every line and posts product sales, referral fees, FBA fees, storage, refunds, reserves, and promotions to discrete GL accounts. 99.6% line item accuracy across 3.2M+ documents.
Per ASIN tagging on the ledger
Every revenue line carries its ASIN tag pulled from the settlement breakdown. Filter the P and L by SKU or product family. Contribution margin per ASIN updates after every settlement, not once a quarter.
Landed cost and COGS that post correctly
Upload supplier invoices and inbound freight bills. Zera tracks landed cost per ASIN and posts COGS on sale using average cost. Month-end inventory ties to the FBA on-hand report from Seller Central.
Reserve, refund, and reimbursement reconciliation
Amazon reserves, refund debits, and reimbursement credits each post to their own balance sheet line and clear the cycle they actually settle. No surprise variance at year end. No phantom cash that never showed up in the bank.
An Amazon chart of accounts that actually fits
Zera ships a starter chart of accounts tuned for Amazon sellers. Pick it on signup or import your QuickBooks chart. Either way the categories that matter are there from day one:
- Revenue: Amazon US sales, Amazon CA, Amazon UK, Amazon EU, Off-Amazon
- COGS: Product cost, Inbound freight, Customs duty, FBA inbound shipping
- Amazon fees: Referral, FBA fulfillment, Monthly storage, Long-term storage
- Amazon other: Returns processing, Removal orders, Reimbursements, Promotions
- Reserves: Pending payout reserve, A-to-z claim reserve, Chargeback reserve
- Marketing: Amazon Sponsored Products, Sponsored Brands, DSP, External ads
- Sales tax: Marketplace facilitator liability, Direct nexus liability
- Operating: 3PL fees, Software, Prep center, Contractor 1099 payments
Pricing for Amazon sellers
- Unlimited Amazon marketplaces (US, CA, UK, EU)
- Unlimited settlements and statements
- Unlimited users (CPA included)
- 1 week to try, no card up front
The typical Amazon seller stack runs A2X at $39 to $109 plus QuickBooks at $99 to $235 plus an Amazon specialist bookkeeper at $800 to $2,500 a month. Or Bench starts at $299 a month and still cannot do per ASIN margin.
Annual delta vs the A2X plus QuickBooks plus bookkeeper stack: $14,000 to $30,000. The 1-week trial parses your last two settlements before you commit.
What it looks like for a real Amazon seller
A kitchenware seller doing $2.1M annual GMV across Amazon US and Canada was running A2X plus QuickBooks Online plus a part-time bookkeeper at $1,400 a month. They booked Amazon revenue as a single line and never broke out FBA storage from referral fees. When Q4 storage fees tripled, they did not see it until the December P and L landed in late January.
They moved to Zera Books on a Wednesday. By the following Tuesday, six months of Seller Central settlements had been parsed line by line. The corrected gross revenue came out 38% higher than what QuickBooks showed. FBA long-term storage fees had quietly grown to $4,200 a month on slow-moving SKUs. They liquidated those SKUs and saved $48,000 the following year.
Numbers that mattered: 18 hours of monthly bookkeeping reclaimed, $48K of buried long-term storage fees made visible, per ASIN margin visibility for the first time, and a $1,400 a month bookkeeper contract canceled. Net savings: roughly $65K a year before the SKU rationalization paid off.
“I had no idea FBA storage was eating $4K a month until Zera split it out. We killed three SKUs the next week. That one report paid for the year.”
Amazon AI bookkeeping questions
The questions sellers actually ask before switching. See the full AI bookkeeping guide for the pillar overview.
- How does Zera Books parse an Amazon settlement report?
- Drop the bi-weekly Amazon Seller Central settlement PDF or the date range summary report into Zera. The platform reads every line of the settlement and splits it into product sales, FBA fees, referral fees, storage fees, long-term storage, refunds, chargebacks, reserves, and promotion rebates. Each bucket posts to its own GL account. The net deposit reconciles against the bank transfer that follows.
- Does Zera handle FBA inventory and cost of goods sold?
- Yes. Upload supplier invoices and inbound shipment costs from Seller Central and Zera tracks landed cost per ASIN. COGS posts on sale using average cost. The balance sheet inventory number ties to the FBA inventory on hand report each month-end.
- What about Amazon reserves that never seem to clear?
- Amazon holds 3 to 7% of payouts in reserve for chargebacks and A-to-z claims. Generic accounting tools either ignore reserves or lump them into a single accrual. Zera books each reserve as a separate balance sheet line and releases it the period it clears. Your cash position matches what Amazon actually owes you.
- Can I see profit per ASIN or per product line?
- Yes. Zera tags revenue and direct fees per SKU when the settlement breakdown includes ASIN-level detail. The product P and L shows gross sales, referral fee, FBA fulfillment fee, storage allocation, and contribution margin per top SKU. Brand owners use this to cut money-losing SKUs before Amazon Q4 fee season.
- How does Zera handle multi-marketplace sellers (US, CA, UK, EU)?
- Each marketplace runs as its own entity inside one Zera client. Settlements in USD, CAD, GBP, EUR post in source currency and revalue to your reporting currency monthly. Consolidated P and L shows true global revenue without double-counting fees.
- What about 1099-K and Amazon sales tax collection?
- Zera reconciles your 1099-K box totals to the gross sales on the P and L so the IRS match works cleanly. Marketplace facilitator sales tax (collected and remitted by Amazon) books to a separate liability and clears each cycle. No double-booking, no overstated revenue.
- How much does it cost for a seller doing $2M on Amazon?
- $79 per month flat. Same as a hobby seller doing $50K. No transaction tiers, no per-marketplace fees. Compare to Bench at $299, A2X plus QuickBooks at $159+, or a specialist Amazon bookkeeper at $800 to $2,500 a month.
- Do I still need A2X or Link My Books?
- Most sellers do not. Zera reads the same settlement reports A2X parses, but adds posting, categorization, reconciliation, and reporting in one platform. If you already pay for A2X plus QuickBooks plus a bookkeeper, Zera replaces all three at the $79 flat rate.
- Can my accountant or CPA access the books?
- Yes. Unlimited users at $79 flat. Your CPA gets full P and L, balance sheet, cash flow, trial balance, and journal entry tools. They can run audit trails and export to QuickBooks or Xero if they prefer their own tax workflow.
- How fast can an Amazon seller close the month with Zera?
- Most sellers close within 5 business days. Upload the two bi-weekly settlements, the bank statement, any supplier invoices, and any Amazon ads invoice. Zera handles categorization and reconciliation. You review exceptions. Done.
Third-party seller share statistics referenced from About Amazon and pricing benchmarks from Intuit data for 2026.
Related guides
Try Zera Books for your Amazon business
One week to upload your last two Seller Central settlements and see real per ASIN margin for the first time. No card up front. $79 flat after.