SmartBooks vs Dext — Smart Inbox vs receipt-capture-only.
How SmartBooks (Smart Inbox built into the ledger product) compares to Dext (formerly Receipt Bank — a bolt-on to Xero, QBO or Sage). Pricing maths, digital-link mechanics, the stack-consolidation argument, and when each is the right call.
The short answer
Dext (formerly Receipt Bank) is a receipt-capture product that bolts onto Xero, QuickBooks or Sage. SmartBooks is a full accounting product with Smart Inbox at the centre. The comparison most firms are actually making in 2026 is “keep paying Dext on top of our ledger software, or consolidate onto SmartBooks where capture is included.”For a firm with 30+ clients, the consolidation case usually wins on both cost and seams — once SmartBooks is live for HMRC filing.
1. They’re technically different products
On paper, this is a category-mismatch comparison:
- Dext is a SaaS bolt-on. Its job is to capture documents (receipts, invoices, bank statements), extract data, and push it into your underlying accounting software (Xero, QBO, Sage).
- SmartBooks is a full UK accounting product. Smart Inbox is the capture layer; the ledger, MTD filing and accounts production sit underneath.
The comparison exists because for many firms the real question is not “which capture tool” — it’s “is capture worth a separate £20–40/month/client vendor bill, or should it be a feature of the ledger product?” SmartBooks bets on the second answer.
2. Capability comparison
3. The pricing maths — this is where it gets interesting
Dext pricing in 2026 typically runs £20–40/month per client for firm subscriptions, often with an annual minimum commitment. Worked examples:
- Firm with 30 Dext clients. Dext alone: ~£7,200–14,400/year. Plus the underlying Xero/QBO/Sage subscriptions on top.
- Firm with 100 Dext clients. Dext alone: ~£24,000–48,000/year. Plus underlying ledger software.
- Firm with 250 Dext clients. Dext alone: ~£60,000–120,000/year. Plus ledger.
SmartBooks Firm at £39/mo + £6/client, for the same 30/100/250 clients:
- 30 clients: ~£2,628/year (replaces Dext and ledger)
- 100 clients: ~£7,668/year
- 250 clients: ~£18,468/year
The cost case is the primary reason firms ask us about this comparison in 2026. Dext is a great product; for firms running 30+ clients, the stand-alone cost is increasingly hard to defend when Smart Inbox is included in a ledger-equivalent subscription elsewhere.
4. When the Dext stack is still the right call
- You need live HMRC filing in the next 60 days and SmartBooks production credentials haven’t granted yet.
- You have deeply embedded Xero / QBO / Sage workflows that aren’t economic to rebuild.
- Your clients rely on Dext’s native mobile app for capture and switching to WhatsApp-first isn’t culturally acceptable.
- You have specific Dext integrations (industry-specific data flows) that don’t have SmartBooks equivalents.
- Your firm is under 30 clients — the Dext cost is small enough that the consolidation argument is weaker.
5. When SmartBooks is the better call
- You’re running 30+ clients on Dext and the cumulative Dext bill is into five figures.
- You want fewer vendor seams in the submission chain. One product to HMRC is easier to audit than three.
- You’re modernising for April 2026 MTD ITSA and don’t want to multiply the Dext seat count across the new quarterly cadence.
- WhatsApp-first capture works for your client base. Most landlord and SME clients prefer it.
- You want bookkeeper-in-the-loop approval as a default, not as a setting in the ledger product that someone has to remember to enable.
6. If you decide to consolidate
You don’t migrate “from Dext to SmartBooks” directly. You migrate from your underlying ledger (Xero / QBO / Sage) to SmartBooks, and Dext drops out of the stack as a consequence.
The relevant switching guides:
- Switching from Xero to SmartBooks
- Switching from QuickBooks to SmartBooks
- Switching from Sage to SmartBooks
The Dext historic archive becomes read-only on switch — we pull the attachments into SmartBooks so they remain searchable in each client’s document store. Future capture goes through Smart Inbox; the Dext subscription gets cancelled at the next renewal.
7. Bottom line
Dext is the mature, dominant UK receipt-capture product and it’s genuinely excellent at what it does. The question for firms in 2026 is not “is Dext good” — it’s “is capture worth a separate vendor relationship at £20–40/month/client when Smart Inbox is included in a ledger product at SmartBooks’s pricing.” For most firms running 30+ clients, the consolidation argument wins. For under that, the answer is less obvious.
If you’re a firm running Dext at scale, book a 15-minute demo— we’ll run the maths on your actual client count and current Dext spend.
Related guides
- SmartBooks vs Xero
- SmartBooks vs QuickBooks Online
- SmartBooks vs Sage
- Switching from Xero to SmartBooks
- SmartBooks Smart Inbox — product page
- MTD ITSA April 2026 — what it means for firms
FAQ
Aren't SmartBooks and Dext different categories of product?
Yes, on paper. Dext is receipt capture + classification (a bolt-on to Xero, QuickBooks or Sage). SmartBooks is a full accounting product (ledger + filing + accounts production) with Smart Inbox at the centre. The reason the comparison exists is that for many firms the question isn't 'SmartBooks vs Dext' — it's 'do we keep paying Dext on top of Xero/QBO/Sage, or do we consolidate onto SmartBooks where capture is included.' That's a real budget conversation in 2026.
How does SmartBooks' Smart Inbox compare to Dext on the capture itself?
Both extract line items from receipts and invoices. SmartBooks adds per-field confidence scores (so the human reviewer knows where to look) and routes to a dedicated review queue with role-based approval. Dext's extraction is excellent and mature; SmartBooks is competitive but newer. The differentiator isn't who's better at extraction — it's whether capture sits inside the ledger product or talks to it over an integration.
What's the pricing maths?
Dext pricing in 2026 typically runs £20–40/month per client for firm subscriptions, plus an annual minimum commitment. For a firm with 50 clients on Dext, that's £12,000–24,000/year on Dext alone, on top of the underlying Xero/QBO/Sage subscriptions. SmartBooks Firm at £39/mo + £6/client for the same 50 clients is £4,068/year — replacing both the Dext line and the ledger product. The cost case is the main reason firms ask us about this.
Can Dext file to HMRC directly?
No. Dext extracts data; submissions go via whichever underlying accounting software (Xero, QBO, Sage) you have connected. The submission path is therefore three vendors deep: receipts arrive in Dext → push to Xero → file to HMRC. SmartBooks compresses this to one path: receipts arrive in Smart Inbox → classify in product → review/approve → file directly to HMRC with the bookkeeper as named approver in the fraud-prevention headers.
What about digital links under MTD?
HMRC's MTD digital-link rules require an electronic chain from source data to filed return. The Dext → Xero → HMRC chain has digital links in place. The SmartBooks chain (Smart Inbox → ledger → HMRC) is shorter and has fewer vendor seams. From a digital-link audit perspective both are compliant; from an audit-replay perspective fewer seams is fewer places for a chain break.
If we're already on Dext, what's the migration look like?
Historic Dext archives become read-only after switch — we pull the attachments into SmartBooks so they remain searchable in your client's documents. Future capture happens in Smart Inbox. There's no 'Dext export to SmartBooks' as such because the underlying data is in your Xero/QBO/Sage file; the migration is from Xero/QBO/Sage to SmartBooks (see the relevant switching guide), and Dext drops out of the stack as a consequence.
Does SmartBooks have a mobile app like Dext?
Smart Inbox accepts documents from email, WhatsApp, mobile photo and scan. A dedicated mobile app for SmartBooks is on the roadmap; for now the WhatsApp inbound route and the mobile-web upload cover the same use cases. If a polished native mobile capture app is critical to your client workflow, Dext is mature there; if WhatsApp-first capture works for your clients (most landlords and SMEs prefer it), SmartBooks is ahead on that vector.
Is this comparison fair given SmartBooks isn't live for filing yet?
Fair point. SmartBooks is sandbox-tested with HMRC; production credentials are with HMRC for review. Dext + your existing accounting software is live today. If filing in the next 60 days is the binding constraint, keep your current stack and time the consolidation around the SmartBooks production-credentials grant. Status lives on /security.
A note
Dext (formerly Receipt Bank), Xero, QuickBooks, Sage and their respective products are trademarks of their owners — mentioned here for honest comparison, not endorsed by them. Dext pricing bands are accurate at the time of writing and stated as ranges to absorb minor drift; check Dext’s current firm pricing before relying on the consolidation maths.
Consolidate the stack.
Book a 15-minute demo if you're running Dext at scale — we'll run the maths on your actual client count and current Dext spend, against SmartBooks Firm pricing.
Running a firm? Book a 15-minute demo.