Xero leaves signature capture to its app ecosystem. That leaves Xero shops shopping for a third-party app, and the choice is messier than it should be. Most “best Xero signature app” articles are affiliate listicles. This one is written by the team behind Billet (one of the apps listed), and we’ve tried to be straight about where each tool actually fits. Five apps, what each is genuinely good at, and which one to pick depending on how your business actually runs.
The shortlist
These are the five signature apps with a real Xero integration that’s still working in 2026:
- DocuSign
- PandaDoc
- Adobe Acrobat Sign
- HelloSign (Dropbox Sign)
- Billet
Anything else you see ranked usually doesn’t integrate with Xero directly, or only connects through Zapier.
Quick comparison
| App | Xero sync | Built for the field? | Send limit |
|---|---|---|---|
| DocuSign | Native (one-way) | No | 100/yr at base tier |
| PandaDoc | Zapier | No | Unlimited |
| Adobe Acrobat Sign | Zapier | No | Unlimited |
| HelloSign | Zapier | No | Unlimited |
| Billet | Two-way native | Yes | Unlimited |
Pricing and feature details are summarized as of June 2026 and change frequently. Verify current pricing and capabilities on each vendor’s own website before deciding.
Which one to pick
If you’re a desk-based service business (consultants, accountants, agencies)
DocuSign or Adobe Acrobat Sign. Both are built for someone sitting at a computer, sending a long contract, and waiting for the customer to read and sign on their own laptop. Excellent for closing a six-figure consulting engagement. Overkill for getting a customer’s signature on a $500 plumbing job.
The downside is that it is a separate per-user subscription on top of Xero, charged before you’ve collected a single signature. For a Xero shop in Sydney or Manchester running on tight margins, that’s real money.
If you want lower friction without DocuSign pricing
PandaDoc Starter. Cheaper, Xero via Zapier, unlimited sends. You’re still managing a separate dashboard from Xero, and the workflow assumes the customer is at a computer and willing to read a document, but the price is reasonable for a small ops team.
If you deliver goods, do field service, or sign in person
Billet. It’s the only one of the five built around the field workflow, not the office workflow. Tradies in Sydney capturing a signature at a job site, builders in Auckland delivering materials, plumbers in Manchester finishing a callout. Drivers and reps capture signatures on an iPad, in person, with GPS coordinates stamped on the signed PDF. The Xero invoice or quote updates automatically, two-way, no manual reconciliation. One flat price per person, unlimited sends, works offline.
This isn’t a knock on the desk-first tools. DocuSign is correct for closing a SaaS contract over Zoom. It’s the wrong tool when a delivery driver is standing on a job site with one bar of cell signal and a customer waiting for him to leave.
If you only need a handful of signatures a month
Adobe Acrobat Sign, if you already pay for Adobe Creative Cloud. Sign is included on most CC plans, so you’re not adding a new line item. Outside that, it’s not the cheapest option.
How to actually decide
Three questions:
- Are signatures captured in person or remotely? In person, you want a field-first app (Billet). Remote, a desk-first app is fine.
- How many users will be sending or capturing? At small headcount, per-user pricing barely matters. At ten or more it compounds, so check what each tool charges per seat and whether office staff need their own.
- How important is the Xero round-trip? If you want the signed status, signature image, and timestamp pushed back into Xero automatically, you need a two-way integration. Most desk-first apps are one-way (Xero invoice goes to the signature app, signed copy doesn’t come back without manual work).
Country notes
If you’re in Australia, New Zealand, or the UK (Xero’s strongest markets), make sure whichever app you pick handles your local conventions:
- BAS, GST, or VAT tax handling on the signed PDF
- Local currency (AUD, NZD, GBP) and date format (DD/MM/YYYY)
- Local bank details (BSB plus Account in AU, Sort Code plus Account in UK, single account number in NZ)
- No US-only language like “ZIP code” or “check”
Billet was built country-aware from day one for AU, NZ, UK, US, and CA conventions; many of the desk-first tools focus on US formats.
Billet launches late 2026
Billet isn’t live yet. If Xero signature capture is the gap you’ve been working around, join the waitlist and we’ll email you the day it goes live. No account, no card, nothing to cancel.