Sage One

At a glance

• Editor score
  5.7 / 10
• Pricing
  30-day trial
• Best for
  Portuguese businesses needing compliant invoicing
• Free plan
  No
• Facts checked
  20 Sep 2026

• Where it wins

  • Creates invoices, quotes, credits, receipts and other sales documents
  • Supports electronic signatures and SAF-T submission in Portugal
  • Connects online stores through an API and supports accountant collaboration

• Where it doesn't

  • Primarily focuses on invoicing rather than full bookkeeping
  • Inventory tracking is not included
  • Access is web-only, without verified mobile platform support

Our verdict on Sage One

Sage One is a Portugal-focused cloud invoicing product for individuals, small businesses and professionals carrying out commercial, business or professional activities. It creates invoices, quotes, credit notes, debit notes and receipts, while also supporting expense recording and customer account tracking. Electronic invoicing with a digital signature, SAF-T submission to the Portuguese tax authority and online-store API connections make it suited to businesses that need compliant sales administration rather than a broad accounting suite.

The plan structure separates core invoicing from wider financial and collaboration features. Sage One Básica includes QR Code and ATCUD invoice printing, expense tracking, customer tracking, online-store API access and electronic invoicing. Sage One Standard adds unlimited sales documents, transport and return guides, accountant collaboration, financial situation tracking, and receivables and payables tracking. The published offering is paid and includes a 30-day trial rather than a permanent free plan. Standard also has an annual payment option, while prices are shown in euros plus VAT.

Its strongest fit is a Portuguese business that needs tax-aware invoicing, customer records, expense capture and a direct connection with an accountant. Store operators can also benefit from the online-store API, and businesses handling deliveries or returns can use the relevant guides in Standard. Sage One is less suitable for teams seeking full bookkeeping depth, because the product is positioned primarily around invoicing and does not include inventory tracking. It is accessed through the web, with telephone and email support available from Sage Portugal – Software, S.A.

Your product? Our editors can test Sage One in depth and publish a review, labelled as paid · from $149/mo →

Sage One pricing

All 2 Sage One plans and prices →

Sage One fact sheet

Sage One integrations

Sage One lists 2 integrations on its own site.

• Online stores via API
• Other Sage accounting products

Alternatives to Sage One

• Zoho BooksA broad bookkeeping suite with a capable free plan and scalable paid tiers.9.4
• Xero BillsA paid bookkeeping platform with strong bill management, reconciliation, and payment tools.9.3
• QDQuickBooks Desktop EnterpriseA Windows-based accounting suite built for inventory-heavy, multi-company operations.9.2

See all Sage One alternatives →

Featured on iTechGuides

Sage One is listed in our Bookkeeping Software directory. Add the badge to your site — it links back to this page.

<a href="https://www.itechguides.com/products/sage-one/"><img src="https://www.itechguides.com/best/badge/sage-one.svg" alt="Featured on iTechGuides" width="230" height="46"></a>

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

Last updated 7 Oct 2026 · How we research and update