How tax change boost could stimulate building investment

Now is a good time for farmers to be erecting and refurbishing farm buildings, according to financial experts.

Chancellor Phillip Hammond announced the new Structures and Buildings Allowance (SBA) in his autumn budget. 

According to accountants Old Mill, the SBA is a big tax change which could make a significant difference to farm investment. It allows landowners to offset 2% of the building cost against their Income Tax or Corporation Tax each year, for the next 50 years.

“Alongside the increase in the Annual Investment Allowance, to £1m a year, this is the biggest thing to come out of the Budget,” said rural tax specialist Catherine Vickery. “Since the government abolished the Agricultural Buildings Allowance in 2011 there has been no tax relief available on new farm buildings, so this is an exciting change.”

The SBA applies to the erection or refurbishment of commercial buildings from 29 October 2018. It covers commercial offices, storage and livestock buildings – whether for your own use or rental – but not residential dwellings.

“The aim is to get people investing to stimulate business growth,” explains Ms Vickery. “It’s not a huge incentive, but it may be enough to tip the balance when people are assessing their infrastructure. The tax saving, combined with improved building efficiencies, could make it more financially viable to erect a new build or carry out extensive refurbishment.”


For example, a farmer looking at spending £100,000 on a new barn would be able to offset £2,000 a year against Income or Corporation Tax.

If paying tax at the highest rate of 47%, that would generate a tax saving of £940. If borrowing money to finance the build, the interest can also be offset against tax. “If you’re paying interest at 2%, and therefore saving £1,880 a year in tax when combined with the SBA, it effectively means the building is costing you £120 a year, excluding capital repayments.” (See table)

There are some restrictions: Where contracts have been signed or work commenced before 29 October 2018, the SBA will not apply.

“There are anti-avoidance measures in place to prevent anyone trying to fabricate eligibility,” warns Ms Vickery. That said, it may be possible to claim partial eligibility, where one contract has been signed covering the structure, but another is yet to be agreed for the concrete, for example.

The SBA also applies to structures – including walls, bridges and tunnels – so may be useful when refurbishing or erecting stone walls, for example. In addition, it covers the cost of necessary demolition and land alterations, but not the cost of the land or obtaining planning permissions.

“When combined with the £1m Annual Investment Allowance – which gives 100% up-front tax relief on the purchase of eligible plant and machinery – now is an extremely good time for farmers to be improving or replacing their buildings,” Ms Vickery said.

“You could make your business a lot more efficient by having buildings which are really fit for purpose.”


Spending £100,000 on a new building

Borrowing £100,000 interest only at 2%







Tax rate (Inc class 4 NIC)




Annual finance cost




Less tax relief on SBA




Less tax relief on finance cost




Net Cost of build per annum




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About The Author

Editor of LBM titles Pig World and Farm Business and group editor of Agronomist and Arable Farmer. National Pig Association's webmaster. Previously political editor at Farmers Guardian for many years and also worked Farmers Weekly. Occasional farming media pundit. Brought up on a Leicestershire farm, now work from a shed in the garden in Oxfordshire. Big fan of Leicester City and Leicester Tigers. Occasional cricketer.