Official Partner Studio · merchantbastion.com · id.merchantbastion.io

Audit-Ready Cross-Border Tax, Product Passports, Dispute PDFs & True Source Accessibility.

Built for growing Shopify, Shopify Plus, WooCommerce HPOS, and Accounting Firm teams across the United States, European Union, United Kingdom, and Australia. Connect directly from your store in one click with zero external account passwords, 0% win commissions, and 0% traffic taxes.

See Simple Card Pricing How Direct Store Login Works App Reviewer Test Sandbox

Built for Shopify & OS 2.0 1-click Shopify Admin login, native Shopify Billing, Rust/Wasm Checkout Validation, and sub-8 KB Liquid blocks.

100% WooCommerce HPOS Native High-Performance Order Storage & Checkout Blocks support, plus 1-click retired Aelia EU VAT migration.

Archival PDF & QR Engine Sub-50 KB deterministic PDF certificates, SHA-256 integrity seals, ISO/IEC 18004 QR vectors, and all 24 EU languages.

Zero Sign-Up Friction · Zero Password Databases

No Account Passwords — Connect Directly in 3 Clicks

You never register an email or password on merchantbastion.com. Every tool connects natively inside your existing store platform or browser:

1 Shopify & Shopify Plus

1-Click Shopify OAuth

Click Install on Shopify to launch straight inside your Shopify Admin with no separate account password. Your $0 Free tier activates immediately, and any paid upgrade is billed automatically on your monthly Shopify invoice.

2 WooCommerce & WordPress

Free .ZIP Plugin + License Key

Install our free core plugin inside WordPress (€0 / $0 works out of the box). When upgrading via Lemon Squeezy, simply paste your emailed License Key into WordPress Admin — zero account passwords needed.

3 Accountants & Tax Advisors

Instant Browser CSV — No Login

Upload and test 10 corporate tax rows free right in your browser without creating an account. Unlock 2,500 to 15,000 rows immediately by pasting your emailed Access Key.

Interactive Jurisdiction Matrix

Select Your Target Market (US · EU · UK · AU)

Filter active statutory shields, local billing currencies, and recommended multi-app bundle tiers by region.

All 3 Continents Active — EU + US + UK + Australia Cross-Border Stack

Recommended Suite: Level B — 3-Continent Global All-Access Shield ($49/mo Starter [Save 46% vs $91] · $79/mo Pro [Save 61% vs $205] · $149/mo Global Agency up to 25 stores [Save 62% vs $395], or €149/$149/yr on WooCommerce).

EU Dir. 2006/112/EC Art. 138 VIES US MTC / SST Form F0003 & ESIGN AU ABR ABN Modulo-89 & ATO GSTR 2013/1 US CPSC 16 CFR 1110 + CA Prop 65 + EU GPSR + UKCA US ADA Title III + CCPA Sec-GPC: 1 + EU EAA 2019/882

Three statutory B2B tax engines unified under one cryptographic checkout and archiving architecture—never risking unsafe blind zero-rating.

EU VIES (27 EU + XI · $0 / $9 / $19 / $39/mo · Woo €0 / €39 / €79 / €129/yr): Captures official 16-digit EC consultation proofs, blocks domestic and country-mismatched tax fraud via Rust/Wasm Checkout Validation, and protects sales during national VIES server outages via 30-day HMAC cache + automated partial VAT refund queue. Includes 1-click retired Aelia EU VAT Assistant migrator.
US B2B MTC/SST E-Sign Vault ($0 / $19 / $49 / $99/mo · Woo $39 / $79 / $129/yr): Covers all 51 US jurisdictions (45 sales-tax states + DC + 5 NOMAD states) with statutory permit format checks, state-specific rules (NY Form ST-120, FL Annual DR-13, CA CDTFA-230), HTML5 handwritten e-signature pad, shipping-state nexus lock, and 7-year SHA-256 PDF retention.
Australia ABR ABN & ATO Invoice ($0 / $12 / $29 / $49/mo · Woo A$59 / A$119/yr · Bulk CSV A$19): 11-digit ABN Modulo-89 and 13-digit NZBN validation, ATO GSTR 2013/1 Tax Invoice PDFs, and 47% No-ABN PAYG Withholding alerts.

Live Preview: Shopify EU VIES Live Preview: US E-Sign & AU ABN Vault Live Preview: Woo HPOS Admin Live Preview: Bulk CSV Tool

Keep 100% of every dispute you recover. Replace 20% to 25% commission agencies with deterministic, issuer-ready PDF representment dossiers at a flat monthly rate.

Flat Pricing ($0 Free Preview / $15 Starter / $39 Pro / $79 Scale): Zero percentage commission on recovered funds, backed by a 48-hour overage Grace Period so urgent bank deadlines are never blocked.
4 Card-Network Reason Templates (Visa CE 3.0 & Mastercard): Tailored layouts for Fraudulent (120–365 day historical undisputed order matching + 3DS/AVS/CVV), Product Not Received (Carrier Tracking QR), Product Unacceptable, and Subscription Canceled.
Guaranteed Sub-4.5 MB Monochrome-Safe PDFs: Crisp vector typography (20–45 KB), SHA-256 document hash, plain-text rebuttal summary, and transparent Issuing Bank adjudication notice.

Live Preview: Chargeback PDF Studio See $15 / $39 / $79 Cards

One catalog workflow generating compliant online product safety disclosures, warehouse thermal labels, and scannable GS1 Digital Link QR Passports across Europe, the US, and the UK.

EU GPSR (2023/988 Art. 9, 16, 19) & ESPR DPP: All 24 official EU languages unlocked on every plan (even $0 Free!), Modulo-10 GTIN check, and 50x30 mm / 4x6 in Zebra and Dymo vector thermal labels.
US CPSC eFiling (16 CFR Part 1110 · July 8, 2026) & CA Prop 65: Validates all 7 mandatory CPC/GCC elements, enforces California OEHHA specific-chemical warnings, and includes a built-in non-binding 10-digit USITC HTS tariff lookup helper.
UK UKCA vs. Northern Ireland XI (CE + UKNI): Automatically separates Great Britain postcodes (UKCA) from Belfast BT postcodes under the Windsor Framework (XI). Exporter tiers: $0 / $15 Single-Region / $39 3-Continent Pro / $79 Brand Plus.

Live Preview: 3-Continent Safety Admin Live Preview: 24-Lang Consumer DPP QR

Stop paying $59 to $479/mo pageview taxes for cosmetic floating toolbar scripts. Repair accessibility barriers directly in semantic HTML, Product Media alt metadata, and theme landmarks.

True Source Remediation (WCAG 2.1 AA & EN 301 549 v3.2.1): Audits and fixes missing Product Media alt texts, unlabeled icon buttons and inputs, skipped heading levels, and WCAG 1.4.3 color contrast, while alerting you if legacy third-party overlay scripts remain in your theme.
California CCPA Sec-GPC: 1 Privacy Bridge: Lightweight sub-8 KB OS 2.0 App Embed honors browser Global Privacy Control opt-out headers via Shopify's native Customer Privacy API with zero cookie-banner bloat.
Flat Catalog Pricing ($0 / $29 / $59 / $99/mo · Woo €0 / €39 / €79 / €129/yr): Zero traffic surcharges, 24 EU languages + US English Conformance Statement, SHA-256 Audit PDFs, and zero shopper PII (Protected Customer Data: NONE).

Live Preview: ADA/EAA/GPC Source Fixer Live Preview: 24-Lang Public Statement Live Preview: 4-App Bundle Center

Level A · Single-Region 4-in-1 Shield (EU or US) $39 Starter · $59 Pro · $99 Agency (Up to 10 Stores) Includes VIES or US B2B Tax + 0% Fee Chargeback PDF + Product Safety QR + ADA/EAA Source Fixer for one primary market. Saves up to $197/mo (67% OFF standalone pricing).

Level B · 3-Continent Global All-Access Shield $49 Starter (46% OFF) · $79 Pro (61% OFF) · $149 Global Agency (25 Stores) Unlocks EU + US + UK + Australia and Wave 3 Japan slots simultaneously across up to 25 Shopify or WooCommerce (€149/$149/yr) storefronts with White-Label Audit PDFs.

Explore Side-by-Side Bundle Cards Launch Interactive Bundle Calculator

Security, Privacy & Fair Billing Architecture

Why Technical Founders & Compliance Teams Trust MerchantBastion

Minimal OAuth & Zero Data Abuse

Apps 03 and 04 operate with Protected Customer Data: NONE (zero shopper PII). Apps 01 and 02 access order and tax metadata strictly under GDPR Art. 6(1)(c) and Art. 17(3)(e) statutory audit mandates, verified by constant-time HMAC-SHA256 compliance webhooks.

Non-Destructive 48-Hour Grace Window

Quarter-end B2B spikes or new catalog drops never stall your checkout. Paid plans include an automatic 48-hour Fair Grace Period, and previously published GPSR blocks, Product Media alt descriptions, and Accessibility Statements are permanently preserved.

Honest Statutory & FTC Transparency

We build verifiable engineering tools—never making deceptive legal claims, never promising blind tax-exempt shortcuts during government server outages, and never injecting cosmetic accessibility overlay toolbars.