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Use supplementary pages SA108 to record capital gains and losses on your SA100 Tax Return.
Use a simpler calculation to work out income tax for your vehicle, home and business premises expenses
Small businesses can record income and expenses when money is actually paid rather than when they've invoiced or received
Use supplementary pages SA103S to record self-employment income on your SA100 tax return if your annual business turnover was below the VAT threshold for the tax year.
Use supplementary pages SA109 to record your residence and domicile status on your SA100 Tax Return.
Use supplementary pages SA105 to record UK property income on your SA100 Tax Return.
Use supplementary pages SA102 to record employment income on your SA100 Tax Return.
What to do when you disagree with a tax decision (HMRC1) - appealing against a decision, getting a review by HMRC and reasonable excuses.
If you’ve missed Self Assessment deadlines get an estimate of how much you’ll need to pay in penalties and interest
How to work out your writing down allowances. Work out main rate pools, special rate pools, single asset pools, small pools allowance, long life assets, short life assets
Use supplementary pages SA106 to record foreign income and gains on your SA100 Tax Return.
Personal pay and tax records you must keep to fill in a Self Assessment tax return: which records to keep, how long to keep records.
Use supplementary pages SA101 to record less common types of income, deductions and tax reliefs on your SA100 Tax Return.
Use form SA900 to file a Trust and Estate Tax Return.
Use supplementary pages SA103F to record self-employment income on your SA100 Tax Return if your annual turnover was above the VAT threshold for the tax year.
Use form SA800 to file a Partnership Tax Return.
Selling or giving away an asset you claimed capital allowances on - balancing charges, balancing allowances, closing your business, how to claim and pay tax on your tax return
Use supplementary pages SA110 to record the results of your tax calculation on your SA100 Tax Return.
Use supplementary pages SA104F to record full partnership income on your SA100 tax return.
Use supplementary pages SA107 to record income you received from a trust, settlement or deceased person's estate on your SA100 tax return.
Don’t include personal or financial information like your National Insurance number or credit card details.
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