Self Assessment tax payments and payments on account

Self Assessment tax payments and payments on account

Paying Self Assessment taxes to HMRC

You’ll need to make sure HMRC receive your payment before their deadline to avoid any interest. They will also apply a late payment penalty of 5% of the tax due if it remains unpaid by 2nd March. There are different ways to pay HMRC and the time you need to allow for your payment to reach them depends on your payment method.

One of the quickest and safest ways to pay is by using online banking. All you’ll need is to know how much to pay and your individual UTR number. You can find this information in your Self Assessment Tax Return and SA302 tax calculation.

The SA302 is helpful when making payments as it shows the total due by the deadlines and your UTR number. When making a payment using online banking you’ll need give an 11 digit payment reference which is your UTR number followed by the letter ‘K’.

If we filed your return, you’ll find copies of your Self Assessment Tax Return and SA302 in your document store ⧉.

Payments on account

Payments on account are advance payments towards the tax bill you will owe for that tax year and are calculated using your previous year’s tax bill. If it was over £1,000 your payment is calculated and payable in two separate instalments.

The first payment is due on 31st January, the same day as your balancing payment which clears your tax bill for the previous year. The second is due on 31st July. This is designed to help you spread your payments into two more manageable lump sums.

Each instalment is normally 50% of your previous year’s tax bill. For example, if you paid £4,000 in tax for the 2018/19 tax year, you would need to make a Payment on account of £2,000 by 31st January 2020 and the second payment of £2,000 by 31st July 2020.

Unfortunately, this is not a voluntary payment. However, it can be reduced if you think your income will be lower in the current tax year. Please be aware, if you reduce your payment below the amount that actually becomes payable once your 2020 self-assessment return has been completed there will be interest, and potentially penalties, charged on the underpaid amount.

Once your Self Assessment Tax Return is submitted, if the actual amount of tax due is less than the payments on account made then the difference will be refunded by HMRC. If the payments on account are less than the total tax due, the balancing amount will be payable by 31st January.



    • Related Articles

    • Introduction to Self Assessment tax returns

      For many people, income tax and national insurance payments are automatically deducted by their employer and paid to HMRC. For anyone with a business or income from other sources, they must report it to HMRC on a Self Assessment Tax Return.  Who ...
    • Self Assessment tax returns and rental income

      Owning and renting property can have tax implications. As a landlord, you need to be aware of your income and capital gains tax liabilities. You’ll also need to ensure that any income from rental properties not held in your limited company are ...
    • What is included on a Self Assessment tax return?

      Self Assessment is the way that HMRC requires a tax payer to report annual earnings and work out how much tax has to be paid. It's called Self Assessment as it is the tax payers responsibility to complete the form, calculate the tax and make the ...
    • When we need to charge for Self Assessment tax returns

      Our monthly accountancy subscriptions are designed to avoid any surprise bills and to make it easy for you to understand. There are a few occasions however where we need to charge a fee for Self Assessment that we explain here.  Tax return complexity ...
    • When do I pay my Self Assessment tax bill?

      The deadlines for paying Self Assessment taxes are: 31st January – for any tax you owe for the previous tax year (known as a balancing payment) and your first ‘Payment on account’ 31st July – for your second ‘Payment on account’