Send quarterly updates

How and when to send quarterly updates, based on your accounting period.

Every 3 months, your compatible software will add together your digital records to create totals for each income and expense category. These summaries are known as quarterly updates.

After submitting an update, you will be able to see an estimate of your tax bill for your business income in your compatible software.

You do not need to make any accounting or tax adjustments before sending an update, but you can if you would like your estimated tax bill to be more accurate.

For example, if you use your business premises as your home, you may need to adjust the expenses that you claim in proportion to their non-business use. To do this, you would:

  • create a digital record for the expense
  • adjust the amount claimed in proportion to the percentage of non-business use

When you should send your updates

After your compatible software is authorised, you need to send updates for each business income source to us every 3 months. Your software will tell you when and how to send updates.

You can send updates more frequently, for example, if you want to understand how a significant business receipt or expense affects your estimated tax bill. Most compatible software will allow you to send an update on any day.

If you do not expect to have any additional transactions to record, you can send an update up to 10 days before the end of the update period. For example, if you’re going on holiday and know that you will not be working for the remainder of the period.

Use standard update periods

The standard update periods and deadlines in each tax year are given in this table.

After each 3 month period has ended, you need to send your update within one month. If you do not send it by this deadline, you may need to pay a late submission penalty. These penalties do not apply during the testing phase.

The standard update periods are based on the tax year and the deadlines are given in the following table.

Update period Update deadline
6 April to 5 July 5 August
6 July to 5 October 5 November
6 October to 5 January 5 February
6 January to 5 April 5 May

Use calendar update periods

Alternatively, you can choose to use calendar update periods which end on the last day of the month. You must select calendar update periods in your compatible software before the first update is made.

You’ll need to meet the same deadlines as standard update periods.

Update period Update deadline
1 April to 30 June 5 August
1 July to 30 September 5 November
1 October to 31 December 5 February
1 January to 31 March 5 May