What are self-employed painter expenses? 2026/27 UK Tax Guide

When working as a freelance decorator, maximising your allowable deductions is the most effective way to reduce your Income Tax and National Insurance liabilities. If you are asking “what are self-employed painter expenses?”, HMRC sets strict boundaries on what you can claim against your trading profits.

For the 2026/27 tax year, painters must also navigate the upcoming Making Tax Digital (MTD) transition and specific Construction Industry Scheme (CIS) rules. This guide breaks down exactly what you can claim, backed by statutory tax law.

The Golden Rule: Wholly and Exclusively

Under section 34(1) of the Income Tax (Trading and Other Income) Act 2005 (ITTOIA 2005), you cannot deduct any expenses unless you incur them “wholly and exclusively for the purposes of the trade.  If an expense has a dual purpose (business and personal), you can only deduct a specific, identifiable proportion that relates solely to the business.

Materials and Equipment

The cost of your day-to-day materials—such as paint, brushes, rollers, dust sheets, solvents, and masking tape—are classic examples of expenses incurred wholly and exclusively for your decorating trade. You deduct these in full from your turnover.

Protective Clothing vs Everyday Wear

You cannot claim tax relief for ordinary clothing you wear to work, even if it gets ruined by paint. However, HMRC permits a deduction for the cost of genuinely protective clothing that you wear as a matter of physical necessity.

HMRC’s Employment Income Manual (EIM32470) confirms that items such as heavy-duty overalls, protective gloves, safety boots, and goggles qualify for a tax deduction.  You claim both the initial purchase price and the ongoing cost of washing and repairing these specific protective items.

Travel, Mileage, and Subsistence

Vehicle Expenses

Painters constantly travel between clients, building sites, and hardware stores. Instead of tracking every fuel receipt and repair bill, most self-employed painters claim “simplified expenses” for their vans or cars. This allows a flat-rate deduction of 45p per mile for the first 10,000 business miles, and 25p for every mile thereafter.

Food and Drink (Subsistence)

HMRC usually disallows the cost of lunch, as everyone must eat to live.  However, because a painter’s trade is “itinerant” by nature (moving from site to site), section 57A of ITTOIA 2005 provides a specific exception.  You can deduct reasonable expenses for food and drink consumed at, or while travelling to, a site where you carry out your trade.

“In calculating the profits of a trade, a deduction is allowed for any reasonable expenses incurred on food or drink for consumption by the trader at a place to which the trader travels in the course of carrying on the trade… if at the time the expenses are incurred on the food or drink, the trade is by its nature itinerant”

Admin and the Home Office

If you write up quotes, send invoices, or order materials from your home, you can claim a deduction for your home office running costs. You have two options:

1. Actual Costs Apportionment: You calculate a proportion of your fixed costs (mortgage interest, council tax) and running costs (heat, electricity) based on the floor area of the room you use and the time you spend working there.
2. Simplified Flat Rate: Section 94I of ITTOIA 2005 allows you to claim a flat monthly rate based on the hours you work at home (e.g., £10 a month for 25-50 hours of business use).

Insurance and Training

Insurance

You must take out Public Liability Insurance to protect against property damage or accidents while decorating. Because you incur this premium solely for your business, it is fully deductible against your trading profits.

Training and Development

If you pay for a course to update your existing skills (for example, learning a new spray-painting technique or how to apply a specific anti-vandalism coating), the cost is an allowable revenue expense.  However, if you pay for training to acquire a completely new skill unrelated to your current trade (such as retraining to become a plumber), HMRC treats this as capital expenditure and blocks the deduction.

CIS Compliance for Painters

The Construction Industry Scheme (CIS) heavily impacts decorators. Under section 74(2)(e) of the Finance Act 2004, “painting or decorating the internal or external surfaces of any building or structure” squarely falls within the scope of CIS.

If you operate as a subcontractor working for a larger construction firm, the contractor must verify your status and deduct either 20% or 30% from your labour payments, paying this directly to HMRC on your behalf.  Crucially, the contractor must not apply this deduction to the cost of the materials you provide.  You then offset these CIS deductions against your final Income Tax bill when you file your Self Assessment.

The £1,000 Trading Allowance Option

If you are a part-time painter and your total expenses are extremely low, you do not have to itemise your paint, mileage, and overalls. Section 783AD of ITTOIA 2005 provides an automatic £1,000 “Trading Allowance” for the tax year.  You can simply deduct £1,000 from your gross income instead of calculating your actual expenses. You cannot claim both the Trading Allowance and your actual expenses in the same tax year; you must choose the most tax-efficient method.

2026/27 Administrative Changes: MTD for ITSA

The 2026/27 tax year brings strict new compliance rules. From 6 April 2026, the government mandates Making Tax Digital for Income Tax Self Assessment (MTD for ITSA) for self-employed individuals whose qualifying income exceeds £50,000.

If your painting turnover exceeds this threshold, you must use MTD-compatible software to keep digital records of your income and expenses, and submit quarterly updates to HMRC.  The threshold will subsequently drop to £30,000 from April 2027.  The cost of subscribing to this accounting software is a fully allowable business expense.

Summary of Self-Employed Painter Expenses

For completeness, if you undertake specialist restoration work off-site (such as removing a door to French polish it in your own workshop), this falls outside the scope of CIS unless your contract also requires you to dismantle and reinstall the item on the building site.  Evaluate your contracts carefully to ensure your contractors are applying CIS deductions correctly.

Next steps: Review your projected income for the 2025/26 and 2026/27 tax years to determine if you will breach the £50,000 Making Tax Digital mandation threshold, and ensure your current invoicing system is fully compatible with HMRC’s new digital record-keeping requirements.