How Otis works

Tax returns are complicated,
Otis makes them easy.

How Otis works

Our 3-step process makes tax returns easy.

Laptop with a spreadsheet illustration

Upload your spreadsheet

No retyping, no manual calculations. Simply upload your income and expenses spreadsheet (Excel or CSV) and we’ll instantly create compliant digital records for you.

Man viewing insights on his laptop illustration

Get instant insights

Otis automatically updates your tax position after every upload. See your estimated tax liability at any time, along with a personalised list of your upcoming HMRC obligations.

Man looking at his phone illustration

File with confidence

When it’s time, submit your quarterly updates and final tax return directly to HMRC, (including any extra income like dividends or savings interest) all from the same secure platform.

Get started for free

Making Tax Digital for Income Tax starts April 2026

Get Ready with Otis

Otis is built specifically with MTD in mind, we are fully compliant with all MTD for Income Tax regulations, ensuring your tax filing is accurate and up-to-date. So whether you are self-employed, a sole trader, freelancer or landlord - Otis can help you with all of your making tax digital requirements.

Quarterly updates

Easily submit your income and expenses on a quarterly basis, as required by HMRC. We store back ups of your spreadsheets and your data just because.

Business summaries

Generate comprehensive summaries of your business income, expenses and allowances for each tax year.

File your tax return

File your final tax return directly through Otis. No redirects, no extra software — everything is pre-populated and ready when you are.

HMRC Making Tax Digital Recognised Software

The essentials

What is Making Tax Digital?

Making Tax Digital is HMRC's programme to move the UK tax system online. Instead of filing one Self Assessment return at the end of the year, you'll keep digital records and send HMRC updates throughout the year using recognised software.

From April 2026, MTD for Income Tax is mandatory if you're self-employed or a landlord with qualifying income over £50,000. The threshold drops to £30,000 from April 2027, with plans to extend further.

The short version: if you file a Self Assessment today, MTD is probably coming for you. And Otis is built specifically to make that transition painless.

April 2026

Income over £50,000

April 2027

Income over £30,000

TBC

Income over £20,000

What you'll need to do

MTD requirements

Quarterly updates

You'll need to send HMRC a summary of your business income and expenses every quarter, using MTD-compatible software. Otis does this in a few clicks.

Digital records

HMRC requires your records to be kept digitally. With Otis, every spreadsheet you upload is stored securely and ready for inspection.

End of period statement

At the end of each tax year, you'll confirm your figures are complete. Otis walks you through this and flags anything that looks off.

Final declaration

Your final tax return replaces the old Self Assessment. Otis pre-populates everything from your quarterly data so there's no starting from scratch.

Why Otis

Built for people who'd rather run their business than think about tax

Save hours every quarter

Most Otis users complete their quarterly update in under 10 minutes. Upload your spreadsheet, review the summary, hit submit. Done.

Know exactly where you stand

Your estimated tax bill updates after every upload. No more year-end surprises. No more guessing whether you've set enough aside.

Stay on the right side of HMRC

Late submissions mean penalty points. Otis tracks every deadline and reminds you in advance, so nothing falls through the cracks.

Simple pricing

One bundle. The full year covered.

No subscriptions, no surprises. Pay once for all four quarterly submissions MTD requires each year.

Annual MTD bundle

£80/year

That's roughly £6.70 a month

What's included

  • 4 quarterly updates to HMRC
  • HMRC Assist
  • Estimated tax liability from HMRC
  • Digital backups of your spreadsheets
  • Unlimited amendments to submissions
  • Deadline reminders before each quarter

Free to sign up. Only pay when you're ready to submit.

View full pricing

Need more submissions? Bundles of 8 and 12 are available for landlords with multiple properties or additional businesses.

Frequently Asked Questions about MTD

Can't find your answer?

We're here to help.

Making Tax Digital for Income Tax applies to sole traders, freelancers, contractors(effectively anyone self employed) and landlords with a total business and/or property income (either from a UK or overseas rental property). From April 2026, it applies specifically to those with income over £50,000, and from April 2027, the threshold drops to £30,000. These individuals will have to submit quarterly returns/updates each year. Otis is designed to help these groups stay compliant without the need for complex accounting software.

Quarterly updates are summaries of your income and expenses that must be submitted to HMRC four times a year under MTD. Deadlines are one month after each quarter ends: 5 May, 5 August, 5 November, and 5 February. Otis automatically formats your data and reminds you of upcoming deadlines so you never miss a submission.

You do not need to submit anything immediately, but it is a good idea to have your software set up before Making Tax Digital for Income Tax applies to you.

Setting things up early gives you time to check that your spreadsheet structure works, understand how quarterly updates fit together, and avoid last-minute pressure before your first deadline.

Many people choose to get everything in place months in advance, even if their first submission is not due yet. Setting things up early helps make compliance straightforward when MTD starts.

Yes. You can continue using your existing spreadsheets to keep your income and expense records. Making Tax Digital does not require you to switch to full accounting software. Instead, you must use MTD-compatible bridging software to submit your figures to HMRC. All you need to do is upload your spreadsheet, Otis validates the data, and submits it digitally, allowing you to stay compliant without changing how you already work.

If you already track income and expenses in a spreadsheet, this is usually the simplest way to get MTD-ready. See how spreadsheet uploads work or Get everything set up now - it typically takes just a few minutes

MTD brings multiple benefits: accurate digital record-keeping, fewer errors, a real-time view of your tax position, streamlined submissions, and faster processing by HMRC. By using Otis, you can upload your spreadsheets, automatically generate HMRC-ready reports, and file returns instantly — saving time and reducing stress at year-end.

Bridging software links your spreadsheets or existing accounting system to HMRC's MTD platform. It formats your data correctly and submits it securely, meaning you do not need to change how you keep your records. Otis includes a simple, secure bridging solution that allows you to remain MTD-compliant while continuing to use the tools you are comfortable with.

If you are comfortable with spreadsheets but need a compliant way to submit to HMRC, this is the required step. Otis includes bridging by default, so there is nothing extra to install or manage.

Under Making Tax Digital (MTD), HMRC uses a **points-based system** for late submissions and a tiered penalty system for late payments. Each missed submission earns you a point (tracked separately for VAT and Income Tax). For example, reaching four missed quarterly submissions triggers a £200 penalty. Points expire over time if you stay compliant. For late payments: no penalty if the tax is paid within 15 days; after that, penalties rise from 3% (day 15), to 6% (day 30), and 10% per annum from day 31. Otis helps you avoid penalties by automatically tracking deadlines, reminding you, and enabling timely digital submissions and payments.

If you are within Making Tax Digital for Income Tax, your Self Assessment tax return is replaced by what is called a Final Declaration. This confirms your total income, allowances, and tax position for the year. You can no longer submit this directly through HMRC online services and must use MTD-compatible software instead. With Otis, you can complete and submit your Final Declaration without leaving the platform, making year-end filing simple and fully compliant.

You must keep digital records of all business income and expenses, including sales, purchases, payments, and receipts. These records must be stored digitally (not just on paper) in software that can connect directly to HMRC. Otis securely stores your records and makes them accessible anytime for reporting or audits.

First, sign up for MTD for Income Tax via your HMRC online account. Then, choose MTD-compatible software like Otis, set up your digital records, and prepare your first quarterly update.

With Otis, you can upload your data, review it for accuracy, and submit it to HMRC in just a few clicks. Many people choose to do this well before their first submission is due. You can sign up now and be ready when submissions are required.

Don't wait until April to figure this out

Join thousands of sole traders and landlords already using Otis to prepare for Making Tax Digital. Free to start, no card required.

Takes under a minute. No accounting knowledge needed.