Knowledge Base - SA100 Individual Return

SA100 Individual Return

	How do I offset Capital (CGT) losses? Any unused Capital Gains Tax losses from previous years that are carried forward have to be used against the first available capital gains. This means that you can reduce your capital gains to the yearly allowance amount (£3,000 in 2025-26) and carry forward the remaining losses. TaxCalc does...
	26 Mar, 2026 Views: 25077

	How do I increase/decrease my payments on account towards the following tax year? You can't increase payments on account towards the following tax year – you can only reduce them. You can choose to pay more on account, but HMRC will only ask for the payment on account calculated in your statement. To reduce payments on account, please follow the below instructions: HMRC...
	27 Mar, 2026 Views: 24885

	Claiming Marriage Allowance Making a Claim What to do if you cannot claim When trying to check my status or eligibility, a response of invalid or taxpayer not found is given Claiming as a non-resident Making a Claim For 2024/25 the Marriage Allowance lets you transfer £1,260 of your personal allowance to your...
	26 Mar, 2026 Views: 24841

	Enterprise Investment Scheme share disposals - How to record the sale and claim disposal relief or share loss relief If you have disposed of Enterprise Investment Scheme shares in 2025/26 , you should complete the capital gains summary pages and attach your calculations if: your total sales proceeds from all assets were worth more than £50,000 your chargeable gains before taking off any losses were...
	26 Mar, 2026 Views: 23622

	When will TaxCalc 2026 be available? TaxCalc 2026 will be available in late March 2026. We will let you know when you can update your software and this will depend on which type of customer you are. In all cases, you will not be able to file your return until after 6 April 2026, for the tax year from 6 April 2025 to 5 April 2026. ...
	30 Oct, 2025 Views: 23174

	Which UK ties do I need to enter for non-residence? If you're claiming non-residence tax you need to enter your UK ties in box 12: SimpleStep mode – go to Residence and remittance > residence and remittance continued and enter the amount in the box labelled How many ties to the UK did you have in 2021-22? HMRC Forms mode – go to...
	23 Mar, 2022 Views: 22011

	Where do I enter chargeable event or life insurance gains? You can enter chargeable event and life insurance gains in SimpleStep or HMRC Forms mode. SimpleStep mode Select Other Income from the left-hand menu. Go to Savings and Investments. Tick the box Taxable sums from a UK life insurance policy (chargeable events) Click on Next step. this will...
	09 Jun, 2021 Views: 21327

	Where do I enter Jobseekers Allowance on the return? To enter Jobseekers Allowance, go to the Jobseekers Allowance screen in SimpleStep or HMRC Forms. SimpleStep mode Select Pension income and benefits from the left-hand menu. Tick the box Jobseekers Allowance. Click Next Step to go to the Jobseekers Allowance screen. HMRC Forms mode ...
	23 Mar, 2021 Views: 19218

	What's the deadline for my self-assessment tax return? For the tax year ending 5 April 2026, the deadlines for self-assessment tax returns are: 31 October 2026 is the paper filing deadline. Please see our Knowledge Base article on: Can I file a paper return using TaxCalc? for further information on this. 30 December 2026 is the deadline to file...
	26 Mar, 2026 Views: 18882

	How much tax will I pay on my state pension lump sum? Please note: that State Pension Lump sums are only available to persons that reached state retirement age before 6/4/16 Your state pension lump sum is taxed at the highest rate charged on income received in the year. This highest rate is the one that applies after the set-off of all reliefs and...
	23 Mar, 2021 Views: 18133

	How to use HMRC Self assessment APIs for practice What are APIs? HMRC have provided a method of obtaining information relevant to the completion of a Tax Return called Application Program Interfaces or APIs. This is the first part of their overall Digital transformation project known as Making Tax Digital. Not a practice? The following...
	07 Feb, 2024 Views: 18031

	What tax years can I file online? Self Assessment Filing Deadlines Your Self Assessment Tax Return (SA100, SA800, SA900) normally has to be completed and submitted to HMRC by 31st October following the tax year end (5th April) if you file on paper, or by 31st January following the tax year end if you file online. So the 2026...
	26 Mar, 2026 Views: 18027

	All you need to know about Student and Postgraduate Loan repayments By clicking on the below links, it will take you directly to that section of the article: #Student Loan calculation summary now shown in TaxCalc: #Multiple Plans - combination of Plan 1, 2 & 4 #Introduction of Plan 4 for Scottish students (from April 2021): #SLC online service for SL and...
	26 Mar, 2026 Views: 17782

	Can I file a paper return using TaxCalc? If you want to file a paper return, you can print your return using TaxCalc and then send this by post. PLEASE NOTE: When you print the return, you must ensure that you print the return in greyscale or colour. Black and white returns will be rejected. The paper return deadline is 31 October 2026...
	26 Mar, 2026 Views: 17727

	Error message: Tax relief is not available for pension contributions in excess of relevant UK earnings for the tax year. The pension contribution amount, on which tax relief is available, is restricted to the amount of the taxpayer's relevant UK earnings within the tax year (or £3,600 in the absence of income). If pension contributions have been entered within the return and exceed the amount of relevant UK income...
	06 Mar, 2025 Views: 16603