Guides Tax & MTD MTD for Income Tax Connecting Keepr to your HMRC account

Connecting Keepr to your HMRC account

A one-time link-up that lets Keepr send your quarterly figures straight to HMRC. Takes about a minute, and you only need to do it once every 18 months or so.

Before Keepr can send your figures to HMRC for Making Tax Digital (MTD), you have to connect Keepr to your HMRC account. It's a one-time link-up that uses HMRC's own login page - you never give your password to Keepr. Once it's done, you can submit quarterly updates in a click.

Free or Pro - it doesn't matter. Connecting to HMRC and filing MTD submissions through Keepr is included on the Free plan with no usage limits.

What you need before you start

ThingWhy
Your Government Gateway loginThe username and password you use to sign in to HMRC on gov.uk. Keepr never sees it - you type it on HMRC's site.
Your National Insurance numberNine characters, looks like AB123456C. Find it on a payslip, P60, or any tax letter.
Your self-employment registered with HMRCIf you've ever done a Self Assessment, you're registered. If not, register on gov.uk first - HMRC needs to know about the business before the link will work.
What's a Government Gateway login? It's HMRC's central sign-in - the same one you use to check your personal tax account or file Self Assessment. If you've ever logged in to HMRC online, you already have one.

How to connect

  1. Open the Tax page from the sidebar. If you've never connected before, you'll see a card titled Connect Keepr to HMRC.
  2. Type your National Insurance number (e.g. AB123456C) into the box. Keepr stores it encrypted.
  3. Click Connect HMRC Account. Keepr saves the NI number and hands you over to HMRC.
  4. On HMRC's site, sign in with your Government Gateway ID and password - this is the real HMRC, not Keepr.
  5. HMRC asks if you're happy for Keepr to read and send your Self Assessment data. Click Grant authority. HMRC sends you back to Keepr automatically.
  6. Keepr finishes the handshake and shows a green HMRC account connected banner. Done.
What's OAuth? It's the standard secure handshake apps use to connect to services like HMRC, Google, or your bank. You log in on the real site (HMRC), tick a box to allow the connection, and HMRC hands Keepr a digital token that proves it. Your password never touches Keepr.

What Keepr stores

Once you're connected, Keepr holds a small bundle of details so it can talk to HMRC on your behalf. Everything is encrypted at rest:

WhatWhy it's there
Your NI number (encrypted)Identifies your tax record on every HMRC call. Shown masked in Keepr, e.g. AB****56C.
Your HMRC Business IDHMRC's reference for your self-employment business. Picked up automatically after you grant authority.
A secure access token (encrypted)Stored so Keepr can talk to HMRC on your behalf without asking you to log in again.
A short-lived access token (encrypted)Keepr renews it for you - you'll never notice it expire.
The date you linkedShown on the connection card so you can see when the link was made.

Keepr also sends HMRC the technical fingerprints it requires - your device type, screen size, timezone, IP. HMRC uses these to spot suspicious activity; nothing in there identifies you beyond what HMRC already has.

Where to see and manage the connection

Once connected, the Tax page shows a quiet status card near the bottom - your masked NI number, your HMRC Business ID, the date you linked, and a Disconnect HMRC button. The same controls also live in Settings → MTD / HMRC.

How long does the connection last?

HMRC's access token lasts around 18 months. So this is a setup you'll only redo every year and a half or so. In between, Keepr re-authorises itself automatically - you won't see anything - you won't see anything.

When the 18 months are up, Settings → MTD / HMRC will show a banner saying Your HMRC connection has expired. Your NI number is pre-filled, and clicking Connect HMRC Account again redoes the same flow.

Disconnecting

Switching software or finished with MTD? Click Disconnect HMRC on the Tax page or in Settings. Keepr wipes the access and refresh tokens immediately. Your NI number stays on file so reconnecting later is a single click.

Disconnecting from inside Keepr is the cleanest option. If you'd rather revoke access on HMRC's side as well, sign in to your HMRC personal tax account and remove Keepr from your list of authorised software. Doing both is fine; the connection ends either way.

Free or Pro?

Connecting to HMRC isn't a paid feature. Free and Pro users get the same MTD support - quarterly updates, final declaration, all of it. Pro adds automation features that have nothing to do with HMRC (recurring invoices, auto reminders, advanced reports); MTD itself sits on the Free plan, by design.

Ready to link Keepr to HMRC?
Open the Tax page
Will HMRC see my password?
No - you type it on HMRC's own site, not on Keepr's. Keepr never sees, stores, or transmits your Government Gateway password. HMRC just hands Keepr a token saying “this user has authorised this app”.
What if I don't have a Government Gateway login?
Create one at gov.uk - sign in or register for HMRC online services. The same login then works for Self Assessment, MTD, and the rest of HMRC's online tools.
I have property income or employment income too - can Keepr handle that?
Keepr's MTD support covers sole trader self-employment only, on cash basis, with standard quarterly periods. For property income you'd need a second piece of MTD-compatible software - see HMRC's list at find MTD-compatible software.
I'm a limited company director - do I need to connect?
Only if you also have personal self-employment income on the side. MTD for Income Tax doesn't apply to a limited company's own accounts - those go through Corporation Tax.
What happens if I disconnect mid-year?
Your submission history stays in Keepr, but Keepr can't send new submissions until you reconnect. HMRC keeps your previous quarterly figures on file regardless - just reconnect when you're ready to file the next quarter.