United Kingdom tax deductions & reliefs finder 2026/27

Find the UK tax reliefs, allowances and expenses you're entitled to and claim them yourself. Answer a few quick questions and Plot estimates what each could save you, with a link to claim it through HMRC — Plot takes 0%.

Frequently asked questions

What expenses can I claim as a self-employed person?

Costs incurred wholly and exclusively for your business — equipment, travel, a proportion of home and phone costs, professional fees and more. Alternatively the £1,000 trading allowance can be claimed instead of expenses if that is simpler.

What is the trading allowance?

The first £1,000 of self-employment or casual income each year is tax-free under the trading allowance, so you may not need to register or report it.

Can I claim for working from home?

Yes. You can claim a simplified flat rate based on hours worked from home, or a fair proportion of your actual household running costs.

What is the marriage allowance?

If one partner earns below the personal allowance, they can transfer £1,260 of it to a basic-rate taxpaying spouse, cutting their tax by up to £252 a year.

Loading the calculator…