Making Tax Digital · Live since 6 April

Quarterly tax returns,
without the dread.

Otto is built for UK landlords with personally-held property. Categorise your rental income. See your tax position. File when ready — designed for SA105 to the penny.

Built by a chartered accountant Trained on HMRC worked examples SA105 wedge first
MTD ITSA timeline

The deadlines are not far away.

HMRC’s Making Tax Digital for Income Tax replaces the annual return with quarterly digital submissions. If you let property, you’re in scope.

Now
6 Apr 2026
MTD ITSA went live for landlords with rental + self-employed income above £50,000.
First deadline
7 Aug 2026
First quarterly submission window closes for the £50k+ cohort.
Next wave
6 Apr 2027
Threshold drops to £30,000. The £20,000 cohort follows in April 2028.
No real submissions to HMRC until launch — we’re finishing the engine. Early access opens with the £50k+ cohort.
A glimpse of Otto

Your bank statement → your tax position. Without spreadsheets.

Otto categorises every transaction, applies the SA105 rules, and shows what you owe — with a citation for every line.

SO HOWARD J — 14 Flat 2BStanding order · 28 Apr
+£1,450.00 Rent received
B&Q PLC GLASGOWCard payment · 22 Apr
−£187.40 Repairs & maintenance
NATIONWIDE BS BTL — 14 Flat 2BDD · 1 Apr
−£612.18 Mortgage interest
JOHN LEWIS — KITCHEN UNITSCard payment · 17 Apr
−£2,340.00 Capital? Review

SA105 Property Income

2025/26
Rents received£17,400.00
Allowable expenses−£3,184.20
Mortgage interest (20% relief)£7,346.16
Property profit£14,215.80
Estimated income tax
basic rate band · finance cost relief applied
£1,374.27
Citation: ITTOIA 2005 s272A · PIM2058 · engine v0.6
How it works

Three steps. Nothing manual.

01

Connect your bank

Link the account your rent lands in. Otto reads transactions, never moves money. Read-only by design.

02

Otto categorises

Rules first, AI for what rules don’t cover. You see every decision. Edit any of them. Otto learns your patterns.

03

Review and file

See your SA105 profit, your tax position, every figure cited to the HMRC paragraph. File on your schedule.

Early access

Join the waitlist.

We’re onboarding the £50k+ cohort first. Tell us where you sit and we’ll prioritise you accordingly.

We’ll email you when your cohort opens. No marketing spam. You can ask us to delete your details any time.

Guides

Get up to speed on the rules that catch landlords out.