Two Shopify invoice apps dominate the conversation for B2B compliance invoicing: InvoiceForge and Sufio. Both go well beyond what Order Printer offers. Both are designed for merchants who need more than a basic receipt. But they make different choices about pricing, feature depth, B2B focus, and who they are built for.
This comparison cuts through the marketing language on both sides. You will see how each app handles the specific requirements that B2B merchants actually face: VAT number validation, reverse charge invoicing, ZUGFeRD e-invoicing, credit notes, PO numbers, payment terms, and pricing at scale. By the end, you will know which app fits your operation and why.
InvoiceForge and Sufio at a Glance
Before comparing features in detail, it helps to understand the core philosophy behind each app.
What InvoiceForge Is Built For
InvoiceForge is built for Shopify merchants who need B2B-ready, compliance-first invoicing with a freemium entry point. The app is designed to get you generating compliant invoices quickly, without complex onboarding or high upfront costs. Its strength is in regional compliance coverage: UK VAT, EU VAT with reverse charge, German GoBD and ZUGFeRD, and Australian GST with ABN display are all handled from a single integration. It is the right tool for merchants entering B2B trade, growing wholesale operations, and multi-regional sellers who need correct regional formatting applied automatically.
What Sufio Is Built For
Sufio is an established Shopify partner with deep compliance credentials and a premium positioning. It has been in the market for many years, supports 40+ languages, offers professionally designed templates, and has official Shopify B2B integration for Plus merchants. Sufio is designed for larger merchants with complex multi-regional needs who value maximum customisation, premium template design, and enterprise-level support. Its pricing reflects that positioning.
Quick Comparison Table: Features, Pricing, and B2B Focus
Here is a high-level feature comparison:
- Free tier: InvoiceForge yes, fully functional. Sufio limited trial only
- VAT number capture: InvoiceForge yes. Sufio yes
- VIES validation: InvoiceForge yes. Sufio yes
- Reverse charge auto-detection: InvoiceForge yes. Sufio yes
- ZUGFeRD e-invoicing: InvoiceForge yes. Sufio yes (beta)
- Credit notes: InvoiceForge yes, auto-generated. Sufio yes
- PO numbers: InvoiceForge yes. Sufio yes
- Net payment terms: InvoiceForge yes. Sufio yes
- Multi-language: InvoiceForge selected languages. Sufio 40+ languages
- Starting price: InvoiceForge free / $9.99 paid. Sufio from $7/month (limited)
B2B Invoice Features Compared
This is where the differences matter most for wholesale operations.
VAT Number Capture and Validation
Both InvoiceForge and Sufio capture VAT numbers from B2B customers and validate them against the EU’s VIES database in real time. Both store the validated number with the invoice record for audit purposes. Both apply the validated number to the invoice automatically.
Sufio has the advantage of deeper integration with Shopify B2B company profiles on Plus, automatically pulling VAT numbers from company location settings. InvoiceForge handles VAT number capture through the checkout field and customer profile, which works on all Shopify plans including standard.
Reverse Charge Detection and Invoice Language
Both apps detect when a B2B order from an EU buyer with a verified VAT number qualifies for reverse charge treatment and apply zero-rating with the appropriate legal language. InvoiceForge includes both the English “Reverse Charge” notation and the German “Steuerschuldnerschaft des Leistungsempfangers” phrasing, selectable by target market.
Sufio also provides reverse charge language and adapts it to the invoice language selected for the customer. For merchants with significant German B2B customer bases, having the German-language reverse charge phrasing built in (rather than requiring template customisation) is a practical advantage.
PO Numbers and Payment Terms on Invoices
Both apps support PO number display on invoices, reading from Shopify order attributes. Both support Net payment terms with due date calculation and display on the invoice. Both can display payment instructions (bank details or payment links) on terms-based invoices.
InvoiceForge’s payment terms feature works on all Shopify plans. Sufio’s deepest payment terms integration (including automatic synchronisation with Shopify’s payment terms on company locations) requires Shopify Plus. For non-Plus merchants, Sufio’s terms features are present but require more manual configuration.
Credit Notes and Proforma Invoices
Both apps generate credit notes automatically when a Shopify refund is processed. Both link the credit note to the original invoice number. Both support partial credit notes for partial refunds. Both also support proforma invoices for pre-payment orders.
InvoiceForge generates credit notes automatically without any manual trigger. Sufio also auto-generates credit notes from refunds, with additional controls for merchants who want to review credit notes before sending.
Tax Compliance Compared UK, EU, and Australia
This is a critical differentiator for international merchants.
UK HMRC VAT Invoice Compliance
Both InvoiceForge and Sufio generate HMRC-compliant UK VAT invoices with all eleven mandatory fields. Both support simplified VAT invoices for sales under £250. Both maintain sequential invoice numbering.
InvoiceForge’s UK template is pre-configured for HMRC compliance out of the box, with no additional setup beyond entering your VAT number. Sufio offers comparable UK compliance but through a more template-driven approach that provides greater design flexibility.
Germany GoBD and ZUGFeRD E-Invoicing
Both InvoiceForge and Sufio support ZUGFeRD e-invoice generation for German stores. Both produce the hybrid PDF+XML format required by the German mandate, in the EN16931 COMFORT profile. Both handle GoBD-compliant locking and archiving.
Sufio was one of the first Shopify invoice apps to announce ZUGFeRD support, with the feature available in public beta for German accounts. InvoiceForge includes ZUGFeRD as part of its standard German compliance package. For merchants concerned about the 2027 mandate, both apps provide a viable path to compliance.
Australia GST and ABN Display
Both apps display the merchant’s ABN on Australian tax invoices. Both apply the 10% GST rate with per-line breakdown. Both produce documents that meet ATO tax invoice requirements.
InvoiceForge’s Australian template is straightforward to configure for merchants new to GST invoicing. Sufio offers comparable Australian compliance with additional customisation options for more complex GST scenarios.
Automation and Workflow Compared
Automation capability determines how much manual work you eliminate from your invoicing operation.
Auto-Send Triggers and Conditional Logic
InvoiceForge offers conditional auto-send logic: different triggers and different templates for different customer segments, based on tags, customer type, and shipping address. B2B-tagged customers receive full tax invoices; retail customers can receive simpler receipts or rely on Shopify’s order confirmation.
Sufio also offers conditional sending and multiple trigger options, with a more visual workflow builder. Sufio’s automation rules are more visually presented in the interface, which may be preferable for teams who manage invoicing settings frequently.
Accountant CC and Bulk PDF Export
Both apps support CC’ing a secondary email address (accountant, finance team) on every auto-sent invoice. Both support bulk PDF export for accountant sharing or offline record-keeping. InvoiceForge provides these features on all plan tiers, including free. Sufio’s bulk export is available on paid tiers.
Multi-Language and Multi-Currency Support
Sufio has a clear advantage on language coverage: 40+ professionally translated languages, allowing invoices to be generated in the buyer’s native language. InvoiceForge supports selected languages covering the primary markets (English, German, French, Dutch), which is sufficient for most UK, EU, and Australian operations but falls short for merchants selling into markets like Japan, Korea, or Brazil.
Both apps support multiple currencies, generating invoices in the currency of the order.
Template Design and Customisation Compared
InvoiceForge Template Editor and Branding Options
InvoiceForge provides a template editor that allows you to configure your logo, brand colours, font choices, and field layout. The editor is designed for non-developers: most customisation is done through settings panels rather than code. Custom fields (like PO numbers, internal references, or additional compliance fields) can be added and mapped to Shopify order attributes.
Sufio Designer Templates and Visual Editor
Sufio offers a selection of professionally designed templates created by graphic designers, giving you a higher starting point for visual quality. The visual editor allows layout adjustment without code. For merchants who place high value on invoice aesthetics, Sufio’s template library is a genuine differentiator.
Which Gives You More Control Without Code?
InvoiceForge is designed to be fully configurable by non-technical users. The feature set is deep, but the interface is designed around task completion rather than design flexibility. Sufio gives you more design latitude, with professional templates as a starting point. Neither requires coding for standard configurations.
Pricing Compared What B2B Merchants Actually Pay
Free Tier Features Side by Side
InvoiceForge offers a fully functional free tier that includes all core invoicing features: VAT-compliant invoices, auto-send, credit notes, basic templates, and ABN display for Australian stores. The free tier is limited by order volume rather than feature access.
Sufio’s entry pricing starts at approximately $7 per month on its most basic paid tier, with a free trial period. The free trial allows you to evaluate all features, but there is no ongoing free tier for low-volume merchants.
Paid Plan Pricing for 100, 500, and 1,000+ Orders per Month
InvoiceForge’s paid plans start at $9.99 per month and scale with order volume. For merchants processing up to 500 B2B orders monthly, InvoiceForge is significantly more cost-effective than Sufio. Sufio’s pricing scales from approximately $7 to premium enterprise tiers, with higher price points reflecting the deeper customisation and support at each tier.
For high-volume Shopify Plus merchants processing thousands of orders monthly and needing maximum template flexibility and 40+ language support, Sufio’s pricing is justified by its capability. For growing B2B stores that need compliance without premium pricing, InvoiceForge offers better value.
Total Cost of Ownership for a Growing B2B Store
Beyond monthly subscription costs, consider the time cost of setup and ongoing management. InvoiceForge is faster to set up (typically under 30 minutes to first compliant invoice) and requires less ongoing maintenance. Sufio’s template customisation options create more initial setup time but also more flexibility for stores with specific design requirements.
The Verdict: Which App Wins for B2B?
Choose InvoiceForge If…
- You are setting up B2B invoicing for the first time and want to be compliant quickly
- You need a free tier while your wholesale operation is still early-stage
- Your primary markets are the UK, EU (especially Germany), and Australia
- You want ZUGFeRD compliance included without paying premium pricing
- Your team is non-technical and needs a simple setup process
- You prioritise compliance automation over design flexibility
Choose Sufio If…
- You are a Shopify Plus merchant with established B2B operations
- You need 40+ language support for genuinely global wholesale operations
- Template design and visual quality are primary decision factors
- You are already paying for a premium invoicing setup and need maximum customisation
- Your volume justifies the higher price point at scale
Both InvoiceForge and Sufio are serious Shopify invoicing apps that outperform Order Printer and Shopify’s native invoicing for B2B operations. The right choice depends on where you are in your B2B journey, your market focus, and how much you need to spend to get started.
If you are ready to start generating compliant B2B invoices without a paid commitment, install InvoiceForge free from the Shopify App Store and have your first invoice ready in minutes.