Live — UK accountancy practices filing on time with Missing Information ISO 27001 ALIGNED UK DATA CENTRES GDPR COMPLIANT
SVC / 04 — Self Assessment

Self Assessment. Run like a campaign, not a panic.

Every accountancy firm has the same January. Hundreds of SA returns queued up, clients still missing their dividend vouchers, rental income confusion, CGT calculations to finalise, and a hard 31 January deadline that never moves. Missing Information turns that annual nightmare into a predictable campaign — run from July, not from December.

31 Jan deadline £100 min late penalty 94/94 filed at Truetax 2025/26 −60d avg pre-deadline
Jan deadline escalation ladder

The system that stops January being January.

Missing Information runs a six-month escalation ladder from August to January: monthly nudges through autumn, weekly chases in November, daily alerts in December, red-flag escalation to partner review in the first week of January. No client gets forgotten. No client holds up the whole team.

Aug
First pack sent
Oct
Chase #1
Nov
Weekly chase
Dec
Daily chase
5 Jan
Partner escalation
31 Jan
Filed
SA 2025/26 · firm campaign view
Total SA clients
94
Assigned to 4 staff
Filed
71
76% of the book
Ready to file
9
Nothing missing
Still chasing
14
Partner review today
14 JAN 2026 · 23 DAYS TO DEADLINE · DAILY CHASE CADENCE ACTIVE
SA-specific item types

Dividends, rentals, CGT — categorised from the start.

SA returns pull from a wider set of sources than any other workflow. Missing Information groups SA items by schedule so nothing gets lost: employment, self-employment, dividends, rental, foreign, CGT, other. Each category has its own standard checklist.

  • Employment — P60, P11D copies
  • Self-employment — accounts summary, receipts
  • Dividends — vouchers or broker statements
  • Rental — rent received, agent statements, expenses
  • Foreign — overseas income, tax credits
  • CGT — acquisition/disposal docs, valuations
James Harper · SA 2024/25
Employment
✓ P60 uploaded
Dividends
✓ Hargreaves statement
✓ Fundsmith statement
Rental
✓ Rent received · 12 months
⏳ Agent statement · Manchester flat
⏳ Boiler replacement invoice
CGT
⏳ BTL disposal — completion statement
⏳ CGT 60-day return confirmation
Foreign
✓ N/A this year

Reclaim your January

Firms running Missing Information in 2025/26 filed on average 60 days before the deadline.

Frequently asked

The questions everyone asks.

Quick answers to the most common questions about Missing Information. For more, see our full FAQ.

What does Missing Information actually do?

It tracks every piece of missing information your clients owe you across every UK accountancy service — Accounts, VAT, PAYE, Self Assessment and MTD ITSA. It gives you a daily chase queue with pre-built emails, lets clients upload documents through a secure portal, and shows your team what's ready to work on. It replaces spreadsheets, scattered email threads and Post-it notes with one auditable workflow. Fully-automated chase emails on a scheduled cadence are on the roadmap for later in 2026.

Will it integrate with my existing accounting software?

Yes. Missing Information sits alongside Xero, QuickBooks, FreeAgent and Sage. We don't replace your accounting software — we handle the missing-info chasing layer above it. Direct sync with Xero is available now; QuickBooks and FreeAgent integrations are on our roadmap. We also support Zapier webhooks for custom flows.

How long does setup take?

About four hours from signup to your first live chase email. Bulk-import your client list (we accept pipe-delimited, CSV, or Xero export), assign staff, set service templates, and the system is running. Truetax onboarded 88 clients in an afternoon. The Firm and Scale plans include a guided onboarding call.

Is my client data secure?

Yes — every piece of client data is encrypted at rest (AES-256) and in transit (TLS 1.3). All data is hosted in UK data centres. We're GDPR-compliant, sign DPAs as standard, virus-scan every uploaded file, and align our security controls to ISO 27001. Full details on our security page.

What does it cost?

Plans start at £29/month for sole practitioners (up to 25 clients) and go up to £349/month for unlimited clients. Pricing is by client count only — every feature is included on every plan. 14-day free trial, no credit card required. See full pricing.

Can I cancel any time?

Yes. Cancel from your account dashboard at any time. Monthly plans stop at the end of the billing month. Annual plans run to the end of the paid year. We provide full data export — your client list, status histories and audit logs — in CSV or JSON. No lock-in.

What happens if my clients don't engage with the portal?

The portal uses passwordless magic-link login — no password to remember, no app to install. Clients click a link in an email and they're in. Across 88 clients at Truetax, portal adoption hit 92% within two weeks. For the remaining 8%, you can still operate by email or phone — Missing Information tracks both.

Do you offer a demo before I commit?

Yes. Book a 30-minute demo with someone from our team and we'll walk you through the system using a sample firm. We can also give you a sandbox workspace with anonymised demo data to explore for a few days before starting your trial.

Your next January deadline starts today

Put your client chasing on autopilot.
Get your evenings back.

14 days, free, full access. No card required. Your clients won't know anything has changed — except that you suddenly seem a lot more organised.

No credit card required
Cancel anytime
UK-based support team
Full data export included