MillOS
Pricing
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Pricing that scales with you

Choose Certificates, Accounting, or both. AI agents that act, not just another checklist.

Flats
1

Free

£0
for 1 week
Up to 10 flats · both agents

Try both agents free for 1 week.

  • Up to 10 flats — Certificates and Accounting
  • MillOS books your renewals
  • Open Banking rent tracking
  • Quarterly figures prepared
  • No payment needed. No card required.
Start free

Certificates

£6
/mo
£6 / flat / mo

Beyond tracking. Into action.

  • Reads certificates and tracks expiry dates
  • Coordinates renewals with engineers and tenants
  • Gas, EPC, EICR, PAT and fire tracked
  • New certificates filed against the right property
  • Audit-ready evidence pack per property
Start free trial

Accounting

£40
/mo
£40 / mo flat fee

Beyond recording. Into preparation.

  • Matches rent payments to the right flat
  • Organises invoices and expenses by property
  • Prepares quarterly figures for Making Tax Digital
  • Figures ready to share with your accountant
  • One fixed accounting fee for your portfolio
Start free trial
Both agents

Complete

£46
/mo
£6 / flat + £40 / mo

Both agents, one bill.

  • Both agents — Certificates and Accounting
  • Renewals and cash on one dashboard
  • £6 per flat plus one £40 accounting fee
  • Priority support, UK-based
  • One bill for the whole portfolio
Start free trial
Managing over 15 flats? Book a demo →
How we compare

Beyond tracking.
Into action.

MillOS coordinates renewals and prepares your accounts — not just reminders. Choose Certificates, Accounting, or both.

Capability
MillOS
£6 / flat · Accounting £40 / mo
August
Free tier, then ~£14.99/mo
Latch
Free tier, Pro £20/mo
Hammock
From £8/mo (1–3 props)
Landlord Vision
From £99/year
Landlord Studio
Free ≤3, then £7.99/mo
Every certificate, watched for youGas Safety, EICR, EPC, PAT, fire risk
✓
✓
✓
✓
✓
✓
MillOS reads the certificateUpload a PDF — expiry dates extracted for you
✓
✓Reads documents
✓
—Manual entry
—Manual entry
—Manual entry
Books your statutory renewals before they expireWe spot the expiry, contact the tenant, arrange access and instruct an approved engineer
✓Fully automated
—Reminds you, you book
~Routes tenant-reported repairs, not scheduled renewals
—
—Job tracking only
—
Talks to your tenant for youAccess arranged without you relaying messages
✓
~Tenant app, you send
~AI replies to enquiries
—
—
~Messaging, you send
Portfolio compliance scoreOne 0–100 number across every property
✓
~Checklist, not a score
—
—
—
—
MTD for Income TaxQuarterly figures ready for your accountant
✓
✓
✓
✓Quarterly filing
✓Quarterly filing
✓Quarterly filing
Sends your figures to your accountantAutomatically, every quarter and at year end
✓Sent for you
~You export and send
~You export and send
~You export and send
~Portal, you invite
~You export and send
Rent matched to the right flatArrears flagged automatically
✓
✓
✓
✓
✓
✓
Free planWhat you get without paying
✓10 flats · 7 days
✓Free to start
✓Unlimited on free tier
✓1 property
—
✓Up to 3 properties
Try for free today →Book a call

Pricing questions

Certificates is £6 per flat per month. Accounting is a fixed £40 per month, whatever the number of flats. Complete is both: £6 per flat plus the £40 accounting fee. Add or remove flats anytime and your bill adjusts.