Q. I registered as self-employed in 2005, but as I didn't have any income I ignored the tax returns the tax office sent me. When they demanded £1000 tax for each year I got my act together and sent in the completed tax returns which showed no tax due. Now the Taxman won't cancel the tax demands issued for the years before 2008/09. What can I do?

A. You have been caught by the tax law here. The years before 2008/09 are 'out of time' and the Taxman doesn't have to cancel the tax demands for those years. Although you may be able to appeal for the tax demands to be cancelled under 'special relief', but you need to show it would be unconscionable for the Taxman to collect the excessive tax. This is a very high hurdle to clear.

Q. The Taxman is always demanding money from me for VAT, PAYE, corporation tax, Class 1A NICs, excise duty, the list goes on and on. I am terrified of mixing up the payments and paying the wrong amount to the wrong part of the great tax department. How can I make sure I get it right?

A. The Taxman has recently set-up a really helpful page on his website: www.hmrc.gov.uk/bankaccounts/, which lists alphabetically all the taxes and charges it administers. When you click on the name of a tax or charge, the website tells you how to pay, including the bank account numbers and how to check you have the correct reference.

Q. I sold a property in August 2012 which made a gain of £50,000. It consisted of a cafe on the ground floor which I ran as a sole trader until August 2010, and a residential flat above, both of which were let out from August 2010 until the date of sale. Can I claim entrepreneurs' relief on the gain?

A. Assuming you ceased the cafe business in August 2010 (and did not continue the same business elsewhere), you should be eligible to claim entrepreneurs' relief on the part of the gain that relates to the cafe section of the property. This is on the basis that the ground floor was used for the purpose of your cafe business to the day you ceased to operate that business, and you sold the property within three years of that date. The gain relating to the flat will not qualify for entrepreneurs' relief.

Q. My business needs to move to smaller cheaper premises, but my current landlord wants me to pay a fee to surrender the property lease earlier than the next break point. Can I claim that lease-surrender payment as a business expense?

A. Unfortunately you can't get a tax deduction for this payment to your landlord, as a fee to release you from the continuing obligation to make payments under the lease is regarded as a capital payment. There is also no tax relief for this payment under the capital gains tax rules as it doesn't represent a cost of purchase or a cost of disposal of an asset. So for you it's a 'tax nothing'.

Q. My office junior is paid exactly the national minimum wage (NMW). Do I have to put his wages up from 1 October 2012?

A. It depends how old your employee is. From 1 October 2012 the NMW rate for those aged 21 and over rises from £6.08 to £6.19 per hour and the apprentice rate is increased to £2.65 per hour. However the rates for 16 to 20 year olds have not been increased.

Q. I'm a painter and decorator, working mainly for individual householders. I only give out an invoice for work done if my customer asks for one. Is this acceptable to the Taxman? I'm not VAT registered.

A. As you are not VAT registered there is no legal requirement to issue invoices for every sale, but it is good business practice. If you accurately record the money you receive from customers, and those amounts can be tied up to the cash and cheques you bank, the Taxman should not have a problem with your business records. However, if the Taxman suspects that you have been under-recording your sales, because you receive many payments in cash which are not immediately banked, you may have a problem. We can help you set up a system which will accurately record your sales, and keep the Taxman happy.

Q. I am employed by a charity that provides me with a Skoda Yeti car as my work involves transporting disabled people. I pay for all the petrol, but the charity reimburses me for work-related journeys at 15p per mile. This rate has not changed since June 2011, although the price of petrol has increased. Can I claim back any more of my petrol costs for work journeys from the Tax Office?

A. Unfortunately not. The advisory fuel rate for cars with petrol engines of up to 1400cc is 15p per mile and it hasn't changed since 1 June 2011. The rates for LPG cars and diesels have moved slightly over that period but not much. You could ask your employer to pay more per mile, but you will then be taxed on the excess above 15p per mile, unless you can show your car is particularly fuel-hungry, which is unlikely for a Skoda.