Alternatively, if you have registered in the past and sent in a return last year, find the Unique Taxpayer Reference (UTR) number that was sent to you. You’ll use this number when filing online. [2] X Trustworthy Source Official UK government website Official website for the public sector of the UK government Go to source It’s also sometimes called the “tax reference. “[3] X Trustworthy Source Official UK government website Official website for the public sector of the UK government Go to source If you don’t have the number written down, look for it on a previous return. It will also be on documents you receive from the HMRC. If you know your login information, you can find it in your online account. Call the HMRC helpline if you can’t find it. The main numbers are 0300 200 3310 and 0300 200 3319 from the UK or +44 161 931 9070 outside the UK. [4] X Trustworthy Source Official UK government website Official website for the public sector of the UK government Go to source

If you’re self-employed, you’ll need to use one of the forms on this page: https://www. gov. uk/log-in-file-self-assessment-tax-return/register-if-youre-self-employed. If you’re not self-employed, you’ll use the form on this page: https://www. gov. uk/government/publications/self-assessment-register-for-self-assessment-and-get-a-tax-return-sa1. If you’re in a partnership, use a form from this page: https://www. gov. uk/government/publications/self-assessment-register-a-partner-for-self-assessment-and-class-2-nics-sa401.

You can mail it to the following address: Self AssessmentHM Revenue and CustomsBX9 1ASUnited Kingdom

If you’re self-employed, you’ll need your profit and loss statement or other business records. You’ll also need items like investment brokers’ schedules or dividend counterfoils, building society passbooks, and personal pension contributions certificates. Have your bank statements on hand.

If you’re filling in the print form, you can cross out the address and write the correct address in.

However, don’t add interest from Ulster Savings Certificates, Individual Savings Account (ISAs), or Save as You Earn schemes. You also don’t put in interest from damages you received in a UK court.

In some boxes, you’ll put in the amount you received, and in others, the amount of taxes taken off these amounts already. You can find your state pension income on the letter you received in the mail called “About the general increase in benefits. "

Use box 17 for things like property income distributions from real estate investment trusts or property authorized investment funds. You also need to fill in the amount for pre-owned assets that you benefit from.

Pay attention to the limit for how much you can claim each year. For most pensions, that’s up to the amount you make in a year in taxable earnings. However, for a “relief at source” scheme, you can only put in up to £3,600 gross.

Check the box if you want to receive your partner’s surplus or you want your partner to receive your surplus. Basically, that just means if you don’t have enough income to use all of your surplus income, your spouse will receive it.

For this credit, you and your spouse must have been married for the full year, and you both must have been born after April 6, 1935.

For instance, the SA102 is for employment. You can find this form at https://www. gov. uk/self-assessment-forms-and-helpsheets. Supplementary forms SA103S or SA103F, on the other hand, are for self-employment. You can find these forms at https://www. gov. uk/self-assessment-forms-and-helpsheets. The forms include Parliament, partnerships, foreign, trusts, Scottish Parliament, The National Assembly of Wales, and capital gains summary.

Mail it to the following address: Self AssessmentHM Revenue and CustomsBX9 1ASUnited Kingdom

Your tax bill will usually show up online under “View Your Calculation” within 3 days of you submitting your return.