Best Amazon FBA Accounting Software in 2026: GoWrath vs Sellerboard vs SellerToolKit

Best Amazon FBA accounting software in 2026

If you sell on Amazon, your Seller Central dashboard tells you revenue. It does not tell you profit. The best Amazon FBA accounting software closes that gap — it pulls in every referral fee, FBA fulfilment fee, storage charge, return, PPC cost and unit COGS, then shows you what you actually kept.

In 2026 three tools come up again and again when sellers shop for Amazon FBA accounting software: GoWrath, Sellerboard and SellerToolKit. They overlap, but they were built with different priorities. This guide compares all three on the things that decide real profit — accuracy, reimbursements, fees, inventory and price — so you can pick the right one for your business.

Want to sanity-check a single product before you commit to a tool? Run the numbers in our free Amazon FBA profit calculator first.

What to look for in Amazon FBA accounting software

Before comparing brands, know what separates a true Amazon FBA accounting tool from a glorified sales dashboard:

• True net profit, not revenue — profit after every Amazon fee, COGS, shipping, storage and ad spend, per order and per SKU.
• Accurate COGS handling — landed cost, prep, inbound freight and a real FIFO method so cost is matched to the units actually sold.
• Reimbursement recovery — automatic detection (and ideally filing) of lost-inventory, damaged-stock and fee-error claims, because that is money already owed to you.
• Fee and PPC visibility — referral and fulfilment fees, storage and long-term surcharges, plus advertising cost folded into profit, not reported separately.
• Inventory and replenishment — so you see stock value, ageing and what to reorder.
• Pricing that fits your order volume — most tools scale cost with the number of orders you process each month.

Quick comparison

• Core focus — GoWrath: profit accuracy, COGS and reimbursements · Sellerboard: all-in-one profit dashboard · SellerToolKit: reconciliation, FIFO COGS and repricing
• Net profit P&L — GoWrath: yes, per order and SKU · Sellerboard: yes · SellerToolKit: yes
• Reimbursement recovery — GoWrath: finds and files claims · Sellerboard: tracks reimbursements · SellerToolKit: reconciliation-led recovery
• Supplier and COGS depth — GoWrath: supplier dashboard, payout analysis · Sellerboard: FIFO cost allocation · SellerToolKit: FIFO COGS, VAT handling
• Repricer — GoWrath: no, focus stays on P&L · Sellerboard: no · SellerToolKit: yes, paid add-on
• Free trial — GoWrath: 14 days · Sellerboard: 30 days · SellerToolKit: trial or demo
• Entry price — GoWrath: £19.99/mo · Sellerboard: from ~£15/mo annual · SellerToolKit: plan or quote-based

(Always confirm current pricing on each provider's site — plans change.)

Sellerboard

Sellerboard is the best-known Amazon FBA profit tracker on the market and the default all-in-one pick. It bundles a live profit dashboard, PPC tracking, inventory management, an email autoresponder and reimbursement tracking into one affordable subscription.

Where Sellerboard wins

• Breadth. Per-product P&L, PPC profitability by campaign, return-cost analysis, reimbursement tracking and FIFO cost allocation are all included, even on entry plans.
• Price on day one. Pricing starts around 15 USD/month on annual billing (about 19 USD monthly), with a generous 30-day free trial and roughly a 20% discount for paying annually.
• 2026 polish. New heatmap visualisations make it quicker to spot which products and weeks are dragging your margin down.

Where to watch out

• Cost scales with order volume. Sellerboard tiers — Standard under ~3,000 orders, Professional, Business and Enterprise at 15,000+ orders — climb as you grow, so the cheap entry price is not the price you stay on.
• Generalist, not specialist. Because it tries to do everything, the deepest needs — forensic COGS, supplier-level analysis and hands-off reimbursement filing — are lighter than in a focused tool.

If you are specifically hunting a Sellerboard alternative because you have outgrown it on accuracy or reimbursements, keep reading.

SellerToolKit (STK)

SellerToolKit is the reconciliation and repricing specialist, popular with UK and European sellers. Its pitch is 100 percent accurate seller data, and the engineering shows in two areas: inventory reconciliation and cost of goods.

Where SellerToolKit wins

• Reconciliation. STK cross-checks inbound shipments, warehouse transfers, returns and removals against Amazon's own logs and flags even small mismatches.
• Accurate COGS and VAT. A genuine first-in-first-out (FIFO) costing method plus solid VAT handling make its P&L trustworthy for VAT-registered sellers.
• Integrated repricer. STK includes a powerful rules-based repricer (as a paid add-on) that reuses your live cost data, plus expanding Amazon Ads reporting for ACoS and spend.

Where to watch out

• Profit is one of several jobs. With reconciliation, repricing and ads all under one roof, pure P&L reporting can feel secondary to sellers who just want clean profit numbers.
• Add-on costs. The repricer and some advanced features sit behind extra subscriptions, so the headline plan is rarely the final bill.

SellerToolKit is the pick if reconciliation accuracy and repricing matter as much as profit reporting — particularly for high-turnover, VAT-registered inventory.

GoWrath

GoWrath is built around one question: what did you actually keep? Instead of spreading across reviews, repricing and messaging, it goes deep on the financial core — accurate profit, real COGS, and getting your money back from Amazon.

Where GoWrath wins

• Profit accuracy first. A true Amazon FBA profit tracker that reports net profit after every referral fee, FBA fee, storage charge, return, COGS and ad spend — per order, per SKU and across your whole account.
• Reimbursements that get filed, not just flagged. GoWrath's advanced reimbursements feature finds lost-inventory and fee-error claims and files them, so recovered cash flows straight back into your P&L — on every plan, including Starter.
• Supplier and payout depth. A supplier dashboard plus payout analysis tie purchase orders and disbursements to real margin, which generalist dashboards gloss over.
• Predictable, transparent pricing. Three simple plans, a 14-day free trial and up to three months of backdated data so you see history from day one.

GoWrath pricing (2026)

• Starter — £19.99/mo: up to 500 orders/mo, supplier dashboard, advanced reimbursements, Profit Dashboard, payout analysis, 10 suppliers.
• Advanced — £37.99/mo (recommended): up to 2,000 orders/mo, everything in Starter, 2 agent dashboards, 50 suppliers, priority support.
• Advanced+ — £69.99/mo: up to 10,000 orders/mo, unlimited suppliers and agent dashboards, white-glove onboarding.

See full details on the GoWrath pricing page.

The trade-off

GoWrath deliberately skips peripheral tools — no review automation, no repricer. If you want one tool to also reprice listings or chase reviews, you'll pair GoWrath with a dedicated app for that. The upside is zero distraction from the numbers that determine whether your business is actually making money.

How they compare on what actually moves profit

Profit accuracy and COGS. All three calculate net profit, but the depth differs. SellerToolKit and GoWrath both use real FIFO costing; GoWrath adds supplier-level and payout analysis, while Sellerboard keeps COGS lighter in favour of breadth.

Reimbursements. This is the clearest dividing line. Sellerboard tracks reimbursements and STK surfaces discrepancies through reconciliation, but GoWrath both finds and files FBA reimbursement claims for you — the difference between knowing money is owed and actually getting it back.

Fees and calculators. Every tool reports Amazon fees after the fact. For pre-purchase decisions, use a dedicated Amazon FBA profit calculator to model referral fees, FBA fulfilment fees, margin and break-even before you buy inventory — then let your accounting tool track the real numbers once orders start.

Inventory and dashboards. All three offer an Amazon seller dashboard with stock and sales views. Sellerboard and STK lean harder into inventory and replenishment and repricing; GoWrath focuses its dashboard on profit, suppliers and payouts.

Pricing as you scale. Sellerboard and GoWrath both tier by order volume; STK adds a-la-carte add-ons. GoWrath caps its top plan at £69.99/mo for up to 10,000 orders, which keeps cost predictable as you grow.

Which should you choose?

• You want the most accurate profit and to recover money Amazon owes you → GoWrath. Deep COGS, payout analysis and reimbursements that get filed, not just flagged.
• You want one affordable all-rounder covering profit, PPC, inventory and email → Sellerboard. Broadest feature set at a low entry price.
• You are high-volume, VAT-registered and need reconciliation plus repricing → SellerToolKit. Best-in-class reconciliation, FIFO COGS and an integrated repricer.

For most sellers whose first priority is knowing their real numbers and clawing back lost cash, GoWrath is the best accounting software for Amazon FBA in 2026. If you need maximum breadth or built-in repricing, Sellerboard or SellerToolKit may suit you better.

For a slightly different angle on the same three tools, see our original three-way comparison.

Frequently asked questions

What is the best accounting software for Amazon FBA? The best Amazon FBA accounting software is the one that shows true net profit after every fee and COGS, and recovers reimbursements you are owed. GoWrath leads on profit accuracy and reimbursement filing; Sellerboard is the strongest all-in-one; SellerToolKit is best for reconciliation and repricing.

Is there a good Sellerboard alternative? Yes. If you have outgrown Sellerboard on accuracy or want reimbursements filed automatically rather than just tracked, GoWrath is a focused Sellerboard alternative built around profit precision and cash recovery.

Does Amazon FBA accounting software handle reimbursements? Most tools surface reimbursement opportunities. GoWrath goes further by both finding and filing lost-inventory and fee-error claims, so recovered money flows back into your P&L automatically.

How much does Amazon FBA accounting software cost? Entry pricing ranges from roughly £15 to £20/month and scales with your monthly order volume. GoWrath starts at £19.99/mo with a 14-day free trial; Sellerboard starts around 15 USD/mo annual with a 30-day trial; SellerToolKit is plan or quote-based with paid add-ons.

Do I still need an FBA profit calculator? Yes — for pre-purchase decisions. A calculator screens whether a SKU is worth testing before you buy; accounting software tracks the real P&L once it is selling. Use our Amazon FBA profit calculator for the first job and GoWrath for the second.

Stop guessing your profit

Accurate numbers are the difference between a business that grows and one that quietly loses money on hidden fees and unclaimed reimbursements. Start a free GoWrath trial — 14 days, full access, up to three months of backdated data — and see your real Amazon profit from day one.