Your Making Tax Digital IT quarterly update with TaxNav
Submitting your Making Tax Digital for Income Tax quarterly update to HMRC doesn't need to be complicated. This guide explains what HMRC needs, how to submit your information using TaxNav’s software and answers some common questions.
In this guide:

What is a quarterly update?
As part of MTD IT, HMRC requires you to submit your year-to-date income and expense totals for each qualifying income source four times a year. For example:
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If you have more than one qualifying income source (for example, self-employment and property rental income) you'll need to submit a separate quarterly update for each one. If you have multiple UK properties, however, they can be included in a single property quarterly update. You can do all this at no extra cost through your single TaxNav account.
Your reporting periods and deadlines
As part of MTD IT, HMRC requires you to submit your year-to-date income and expense totals for each qualifying income source four times a year. For example:
For Quarter 1
Standard quarterly reporting
For Quarter 1
Calendar quarterly reporting
Not sure which option you're using? Read our helpful guide.
For the remaining quarters, the reporting periods are:
Quarter 2
Quarter 3
Quarter 4
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The submission deadlines remain the same if you use standard quarters or calendar quarters.
Only the reporting periods themselves change.
The deadlines are:
Quarter 1: 7 August
Quarter 2: 7 November
Quarter 3: 7 February
Quarter 4: 7 May
When can I submit?
You can add information to your TaxNav account at any time during the year. However, HMRC only allows quarterly updates to be submitted from 10 days before the end of the reporting period until the relevant submission deadline.
How to submit your quarterly update
TaxNav gives you two options.
Option 1: Use a spreadsheet
Whether you’re using your own spreadsheet or one of our templates, TaxNav makes it simple to submit your quarterly totals to HMRC.
When you're ready, follow this quarterly submission video
to submit your totals to HMRC through TaxNav:
Option 2: Enter information directly into TaxNav
Enter your income and expenses directly into TaxNav.
Continue adding information throughout the quarter.
Submit your quarterly update to HMRC when you're ready.
Watch our step-by-step video guide.
Frequently asked questions
Overwrite replaces information you've previously uploaded.
Use Overwrite if you keep one spreadsheet with year-to-date (cumulative) information and upload an updated version of that spreadsheet each quarter.
Append adds additional information to data already held in TaxNav.
Use Append if you keep a separate spreadsheet for each quarter and want to add each quarter's information to your TaxNav account.
For example:
For a more detailed breakdown, click the green View Tax Calculation button in your Dashboard. This shows the information HMRC is using to calculate your current tax position, including business and personal information already held in your HMRC account.
Seeing your tax position can help you budget for your tax bill. Your final tax calculation won’t be available, though, until you have completed all 4 submissions plus your annual declaration at the end of the tax year.
Any tax due is calculated after your final declaration has been completed at the end of the tax year.
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