Xero never shipped signature capture. 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 you’ll find online are affiliate listicles by people who’ve never logged into Xero. This one is more honest. 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 actually integrate with Xero, integrates only via Zapier (fragile), or hasn’t shipped a real product since 2022.
Quick comparison
| App | Starts at | Xero sync | Built for the field? | Send limit |
|---|---|---|---|---|
| DocuSign | $35/user/mo | Native (one-way) | No | 100/yr at base tier |
| PandaDoc | $19/user/mo | Native | No | Unlimited |
| Adobe Acrobat Sign | $30/user/mo | Native (limited) | No | Unlimited |
| HelloSign | $25/user/mo | Zapier | No | Unlimited |
| Billet | $5/user/mo | Two-way native | Yes | Unlimited |
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 pricing. Five users at DocuSign Standard runs $175 a month 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 Essentials. Cheaper, native Xero integration, 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. $5 per active user per month, 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 the per-user cost barely matters. At ten or more users, the gap between $5 and $35 becomes serious money.
- 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”
Most of the desk-first apps are US-built and weren’t really designed for these markets. Billet was built country-aware from day one.
Try Billet free for 14 days
14 days, no credit card, full access. Connect Xero during signup and capture your first signed invoice or quote on the same day.