Farm Operating Cost Calculator

Farm operating costs for arable farming in the UK include seed, fertiliser, crop protection (sprays), fuel, labour, machinery depreciation, rent and overheads. Variable costs — seed, fertiliser and sprays — typically run £600–£900 per hectare for winter wheat, while fixed costs (rent, labour, machinery) add another £400–£700 per hectare.

This calculator breaks down costs per hectare by category, allowing you to input your own figures or use national averages from the Farm Business Survey (FBS). It shows total cost of production per tonne, which you can compare against current market prices to assess profitability.

Understanding your cost base is essential for making cropping decisions, negotiating input prices and benchmarking against other farms. The calculator also shows how changes in a single input (e.g. a 10% rise in fertiliser cost) affect your overall cost per tonne.

UK farm operating costs 2026. Average UK arable farm cost: £900-£1,400/hectare (excluding land rent/finance). Livestock (sheep/cattle): £600-£900/hectare. Dairy: £2,500-£4,000/cow/year operating cost. Major cost components: fertiliser/chemicals 25-35%; fuel 10-15%; labour 15-25%; machinery depreciation 15-20%; veterinary/feed for livestock 15-30%. Costs rose 30-50% 2021-2024 due to fertiliser, fuel, feed inflation.

Farm Business Survey 2025 averages. Average UK farm income (net profit): cereals £42,000/year; dairy £100,000; livestock (LFA — Less Favoured Areas) £35,000; horticulture £65,000. BPS (Basic Payment Scheme) phased out by 2027, replaced by ELM (Environmental Land Management) payments. SFI 2026 rates: £36-£150/hectare for various actions (cover crops, hedgerows, nutrient management). Most UK farms 2026: SFI more lucrative than BPS for environmentally-focused farms.

UK fertiliser and input costs 2026. Ammonium nitrate fertiliser: £350-£500/tonne (down from 2022 peak £1,000+). Diesel red (off-road, lower duty): £0.95-£1.15/litre. Veterinary costs: £400-£800/cow/year. Seed costs: £150-£300/hectare. Spray chemicals: £300-£500/hectare arable. Labour: £15-£25/hour for general farm work; £30-£50/hour for skilled operators (combine drivers, herdsmen). Subsidies covered 35-50% of farm income historically; SFI/ELM transition disrupting that.

Diversification income. Common UK farm diversification: holiday lets/camping (£10-£30k/year per pitch); livery/equestrian (£100-£200/horse/month); farm shop/cafe; renewable energy (solar £400-£800/acre rent, wind £8,000-£30,000/turbine/year). Diversified farms 30-40% of UK total income from non-farming. Tax efficiency: still classed as 'farm trade' for IHT Agricultural Relief if mainly used for farming; pure tourism may lose APR — specialist tax advice needed.

Inheritance Tax changes April 2026. Major reform announced October 2024 Budget — implementation April 2026. Agricultural Relief (APR) and Business Relief (BPR): combined £1M cap at 100% relief; above £1M: 50% relief. Effectively 20% IHT on agricultural/business assets above £1M (was 0%). Massive impact: UK farms valued £2-£10M typical face £200k-£1.8M extra IHT. Trustee planning, lifetime gifting, partnership structures becoming critical. Court challenges expected — implementation may be delayed.