
What Are “Simplified Expenses” and When Should You Use HMRC’s Flat Rates Instead of Actual Costs?
A complete UK guide for sole traders, CIS subcontractors and partnerships: vehicle mileage, working from home, living at business premises, MTD ITSA, actual-cost comparisons and the 2026/27 rules
For many self-employed people, claiming business expenses seems straightforward: keep every receipt, calculate the business proportion of each cost and deduct the allowable amount from profit.
HMRC offers another option for certain expenses.
It is called Simplified Expenses.
Instead of calculating the exact business proportion of particular costs, an eligible sole trader or partnership can use HMRC flat rates for certain vehicles, working from home and private use of business premises.
The attraction is obvious: fewer calculations, simpler records and less time trying to divide mixed personal and business costs.
But “simplified” does not necessarily mean “better”.
In some circumstances the HMRC flat rate produces a larger deduction than the actual-cost method. In others, particularly where someone has an expensive vehicle, significant home-working costs or has recently purchased a vehicle, using actual costs can result in a substantially higher allowable deduction.
The decision therefore should not be:
“Which method is easiest?”
It should be:
“Which method gives me the most appropriate deduction while remaining easy to evidence and defend?”
Simplified Expenses are optional. Their purpose is to simplify the calculation of certain costs—not automatically to maximise your tax deduction.
What Are Simplified Expenses?
Simplified Expenses allow certain unincorporated businesses to calculate specific allowable expenses using HMRC flat rates instead of calculating their actual business costs.
They are available to:
sole traders, and
business partnerships where none of the partners is a company.
They cannot be used by limited companies or partnerships that include a limited company as a partner.
There is no turnover or business-income ceiling for using the rules. They are also optional, so an eligible business does not have to use them simply because they are available. (GOV.UK)
Only three main areas are covered:
vehicle expenses;
working from home;
private use when you live at your business premises.
Everything else—materials, tools, advertising, accountancy, subcontractors, telephone bills, professional fees and so on—continues to be dealt with under the normal expense rules. (GOV.UK)
Simplified Expenses Are Not the Same as Cash Basis
This distinction is important.
Cash basis determines broadly when income and expenses are recognised.
Simplified Expenses determine how certain expenses are calculated.
A sole trader can therefore use cash basis and Simplified Expenses together. Alternatively, someone using traditional accounting may still use Simplified Expenses.
HMRC confirms that the Simplified Expenses rules are optional whether or not the business also uses cash basis. (GOV.UK)
Simplified Expenses Are Also Different From the £1,000 Trading Allowance
Another common source of confusion is the Trading Allowance.
If an individual elects to deduct the £1,000 Trading Allowance instead of their actual business expenses, they cannot also deduct normal allowable expenses for the same relevant trading income.
That means you cannot simply take the £1,000 Trading Allowance and then add vehicle mileage, use-of-home expenses and other business costs on top.
If your genuine allowable expenses—including Simplified Expenses—exceed £1,000, using normal expense deductions may be considerably more beneficial than electing for partial Trading Allowance relief. (GOV.UK)
1. Simplified Vehicle Expenses
For many sole traders—particularly builders, electricians, plumbers, decorators, cleaners, consultants and other people travelling between customers or sites—the vehicle calculation is the most important part of Simplified Expenses.
Instead of claiming the business proportion of fuel, insurance, servicing, repairs, MOT, Vehicle Excise Duty, depreciation and vehicle acquisition costs, you can calculate a deduction based on your qualifying business mileage. (GOV.UK)
For 2026/27, HMRC’s simplified mileage rates are:
Cars and goods vehicles – first 10,000 business miles: 55p per mile
Cars and goods vehicles – above 10,000 business miles: 25p per mile
Motorcycles: 24p per mile
The first rate increased from 45p to 55p from 6 April 2026. The Government announced the increase on 17 June 2026 and made it retrospective to the beginning of the 2026/27 tax year. (GOV.UK)
This is a significant improvement for self-employed people using the mileage method.
Example: 8,000 Business Miles
A self-employed electrician travels 8,000 qualifying business miles during 2026/27.
The simplified deduction is:
8,000 × £0.55 = £4,400
The electrician deducts £4,400 when calculating taxable business profit.
That does not mean HMRC gives the electrician £4,400.
It means taxable profit is reduced by £4,400.
For example, if the entire reduction falls within the 20% Income Tax band and the 6% Class 4 National Insurance band, the combined Income Tax and Class 4 NIC effect could be approximately:
£4,400 × 26% = £1,144
The exact saving depends on the person’s overall income, allowances, tax bands and National Insurance position. For 2026/27, Class 4 NIC is 6% on profits between £12,570 and £50,270 and 2% above £50,270. (GOV.UK)
Example: 14,000 Business Miles
Suppose a CIS subcontractor drives 14,000 qualifying business miles.
The calculation is:
First 10,000 miles × 55p = £5,500
Remaining 4,000 miles × 25p = £1,000
Total simplified vehicle expense = £6,500
Again, this is a deductible expense against trading profit—not a £6,500 tax refund.
What Does the Mileage Rate Already Cover?
This is where mistakes frequently occur.
The simplified mileage rate already represents the costs associated with acquiring, owning, hiring, leasing, running and maintaining the vehicle.
HMRC specifically says the rate covers costs such as fuel, oil, servicing, repairs, insurance, Vehicle Excise Duty, MOT and depreciation. (GOV.UK)
Therefore, if you calculate a £6,500 mileage deduction, you cannot then add:
fuel £3,000 + insurance £1,200 + servicing £700 + road tax £300
for the same vehicle.
That would claim the same underlying vehicle costs twice.
What Can Be Claimed on Top of Mileage?
Certain expenses connected with a particular qualifying business journey are not included in the mileage rate.
HMRC specifically identifies costs such as:
parking fees, tolls and congestion charges.
These may be claimed separately where they were incurred wholly for business purposes. (GOV.UK)
Other independent business travel—such as eligible train or taxi journeys—can also be claimed separately.
Fines and penalties remain non-deductible.
The Vehicle Decision Is Important Because You Can Become Locked In
The choice between mileage and actual costs should be made carefully.
Once you start using the simplified mileage basis for a particular vehicle, HMRC requires you to continue using that method for as long as that vehicle remains in the business.
You cannot normally use mileage this year because it produces the larger deduction, switch to actual costs next year because the car requires an expensive repair, and then switch back again.
Similarly, if capital allowances have already been claimed on the vehicle, simplified mileage cannot subsequently be used for that vehicle.
The normal opportunity to change method arises when the vehicle itself is replaced. (GOV.UK)
This makes the initial calculation particularly important.
When Might Mileage Be Better Than Actual Costs?
Consider a self-employed tradesperson who drives:
12,000 total miles, of which
8,000 are qualifying business miles.
Suppose the total annual cost of operating and leasing the vehicle is £6,000.
The business proportion is approximately two-thirds, producing actual deductible costs of approximately:
£6,000 × 66.67% = £4,000
Using Simplified Expenses:
8,000 × 55p = £4,400
In this simplified example, the mileage method gives a £400 larger deduction, while also avoiding the need to apportion each individual vehicle expense.
That is an excellent situation for Simplified Expenses.
But the calculation can reverse very quickly.
When Might Actual Vehicle Costs Be Better?
Actual costs become particularly important where the vehicle is expensive to buy or run, has relatively low annual mileage, has a high business-use percentage or attracts valuable capital allowances.
Imagine a business buys a qualifying new and unused zero-emission electric car for £40,000 during 2026/27 and uses it 50% for business.
A qualifying new zero-emission car can currently receive a 100% first-year capital allowance for Income Tax where the qualifying expenditure is incurred by 5 April 2027. Any private-use restriction must then be applied for a sole trader. (GOV.UK)
Very broadly, a 50% business-use proportion could potentially produce a first-year capital allowance attributable to the business of up to approximately:
£40,000 × 50% = £20,000
subject to the detailed capital allowance and disposal rules.
If the same person drove only 6,000 business miles, simplified mileage would give:
6,000 × 55p = £3,300
The difference is potentially enormous.
This does not mean everyone buying an electric car should use actual costs. Future-year deductions, private use, disposal consequences and running costs must all be considered.
It demonstrates why a large vehicle purchase should be analysed before selecting simplified mileage.
What About Vans?
The same 55p/25p simplified mileage rates apply to goods vehicles such as vans.
However, the actual-cost calculation can be particularly attractive when a business has recently purchased a van.
Under cash basis, expenditure on acquiring goods vehicles can generally be deducted under the cash-basis rules rather than being dealt with like a car, provided the business is not using simplified mileage for that vehicle. (GOV.UK)
For a builder purchasing a £25,000 van, comparing only the fuel and insurance against 55p per mile would therefore be misleading.
The potential relief connected with acquiring the van itself must also be included in the comparison.
Builders and CIS Subcontractors: Which Miles Actually Qualify?
This is one of the most important areas for construction workers.
Using 55p per mile does not automatically make every journey deductible.
The journey itself must qualify as business travel.
HMRC generally disallows ordinary travel between home and a permanent place of work. Simply keeping tools, invoices or paperwork at home does not automatically make the home the business base. (GOV.UK)
For genuinely self-employed subcontractors, however, the circumstances can be different.
HMRC states that where a subcontractor works at two or more different sites during the year, travel between home and those sites should normally be allowable. Where the person works at only one site, or a very small number of predictable sites, the position can be different and the actual business base must be considered. (GOV.UK)
Therefore:
“I am CIS, so all journeys from home to site are deductible”
is not a safe rule.
The nature of the trade, number of sites, business base and purpose of each journey matter.
Keep a Mileage Log
Using Simplified Expenses does not mean keeping no evidence.
HMRC expects contemporaneous records supporting the business mileage claimed. (GOV.UK)
A sensible mileage record should identify the date, journey, business purpose and miles travelled.
For example:
12 May 2026 – Barnet to customer property in Enfield – bathroom installation – 14 business miles
A mileage app can make this particularly easy under MTD ITSA.
A Common Misunderstanding About Bicycles
You may see a 20p per mile bicycle rate in HMRC guidance.
That 20p rate appears in the employee Approved Mileage Allowance Payment rules.
The self-employed Simplified Expenses vehicle regime lists cars, goods vehicles and motorcycles—not ordinary bicycles. (GOV.UK)
A self-employed person using a bicycle for the business should therefore not automatically copy the employee 20p mileage rate into their Self Assessment calculation.
The actual tax treatment of the bicycle and its business costs should be considered separately.
2. Simplified Expenses for Working From Home
The second major area is business use of the home.
This can be particularly useful for accountants, consultants, online businesses and freelancers, but also for builders and subcontractors who prepare quotations, invoices, CIS records, bookkeeping and customer correspondence at home.
Instead of calculating the actual business proportion of certain household running costs, HMRC allows a monthly flat rate based on the number of hours spent carrying out core business activities at home.
You must work from home for at least 25 hours in the relevant month.
The current rates are:
25 to 50 hours per month: £10
51 to 100 hours per month: £18
101 hours or more per month: £26
HMRC treats core business activities as including providing goods or services, maintaining business records, marketing and obtaining new business. (GOV.UK)
Example: Builder Doing Administration From Home
A self-employed builder spends approximately 40 hours per month at home preparing quotes, ordering materials, dealing with invoices, doing bookkeeping and managing customers.
The builder qualifies for:
£10 per month
If this continues for all 12 months:
12 × £10 = £120 simplified use-of-home expense
The figure may appear small, but the attraction is that no calculation of the business proportion of heating, electricity or similar household running costs is required.
Example: Full-Time Home-Based Consultant
A consultant works from home for more than 101 hours every month.
The maximum simplified deduction for the year is:
12 × £26 = £312
This highlights one of the weaknesses of the home-working flat rate.
Even someone working from home full-time receives only £312 a year under the simplified household-running-cost element.
Where actual attributable household costs are significantly higher, calculating actual expenses may produce a better result.
What Does the Home Flat Rate Cover?
The use-of-home flat rate is aimed at household running costs, such as costs associated with heat, light and similar household use.
But there is an important detail that many taxpayers miss.
The flat rate does not include telephone or internet costs. The business proportion of those bills can still be calculated separately using actual costs. (GOV.UK)
HMRC’s detailed manual also confirms that using the simplified running-cost rate does not necessarily prevent a separate deduction for identifiable business proportions of certain fixed costs such as Council Tax, insurance and mortgage interest where the normal conditions for deduction are satisfied. (GOV.UK)
So the choice is not always:
£312 flat rate OR every home-related cost.
A taxpayer may potentially use the simplified rate for household running costs while separately considering other eligible costs that the flat rate does not replace.
This should be calculated carefully.
When Might Actual Home Costs Be Better?
Suppose a sole trader works from home for more than 101 hours per month.
The simplified running-cost deduction is:
£312 per year
But after making a reasonable business-use calculation, the allowable portion of actual heating, electricity, cleaning and other relevant running costs is £620.
Using actual running costs would produce an additional deduction of:
£620 − £312 = £308
That may justify the additional record-keeping.
On the other hand, if the actual allowable running-cost portion were only £190, the £312 flat rate would be both simpler and larger.
This is why the calculation should be made before automatically choosing either method.
What About Rent, Council Tax and Mortgage Interest?
Under the normal actual-cost method, an identifiable business proportion of certain fixed household costs can potentially be allowable where the conditions are satisfied.
HMRC’s detailed guidance identifies costs such as Council Tax, mortgage interest, insurance, rent and certain repairs, with an appropriate allocation based on the facts and business use. Capital repayments on a mortgage are not deductible. (GOV.UK)
The allocation should be reasonable and supportable.
That may involve consideration of:
space used,
time used for business, and
the nature of the cost itself.
Simply dividing every household bill by the number of rooms is not automatically correct in every case.
Be Careful With Exclusive Business Use of a Room
There is also a separate Capital Gains Tax consideration.
Using part of a home for business purposes does not automatically create a Capital Gains Tax problem.
However, if part of the property is used exclusively for business, Private Residence Relief may be restricted for that portion when the home is eventually sold.
HMRC specifically distinguishes exclusive business use from temporary or occasional office use. (GOV.UK)
This is one reason home-office arrangements should be considered as a whole rather than simply asking:
“How much expense can I claim?”
A room used as an office during the day but genuinely used privately at other times may have a different CGT position from a permanently dedicated commercial room.
Business Rates Can Also Become Relevant
Most small home-based businesses do not pay business rates simply because someone works from a bedroom or small home office.
However, business rates can become relevant where the property is clearly divided between business and domestic use, customers regularly visit, employees work there or physical alterations have been made for business purposes. (GOV.UK)
Again, this is separate from the Simplified Expenses calculation itself.
3. Living at Your Business Premises
The third category works differently.
This is designed for businesses where the trading premises are also the owner’s home—for example:
a bed and breakfast, guesthouse or small care home.
In this situation, Simplified Expenses do not simply give the owner another deductible flat amount.
Instead, the business calculates the actual total costs of the premises and then uses an HMRC flat rate to represent the private living element that must be deducted from those costs. (GOV.UK)
The current monthly private-use adjustments are:
1 person living at the premises: £350 per month
2 people: £500 per month
3 or more people: £650 per month
Example: Couple Running a Guesthouse
A couple run a guesthouse and live on the premises throughout the year.
Total premises costs are:
£18,000
Because two people live there, the simplified private-use adjustment is:
12 × £500 = £6,000
The deductible business premises expense becomes:
£18,000 − £6,000 = £12,000
The £6,000 is not an additional deduction.
It is the amount treated as private and removed from the business expenditure.
Should They Use the Flat Rate or Actual Private Use?
Suppose the couple calculate that the genuine private element of the premises costs using actual records would be £7,500.
Actual method:
£18,000 − £7,500 = £10,500 deductible
Simplified method:
£18,000 − £6,000 = £12,000 deductible
Here, Simplified Expenses produces a £1,500 larger deduction.
But if their genuine private element were only £4,500:
£18,000 − £4,500 = £13,500
the actual method would produce the larger claim.
Once again, “simplified” does not automatically mean “best”.
What Happens Under Making Tax Digital for Income Tax?
Simplified Expenses can work particularly well with MTD ITSA because they can reduce the number of actual mixed-use costs that need to be digitally recorded.
HMRC’s current MTD guidance states that where a taxpayer is certain they will use a Simplified Expenses scheme, they do not need to create digital records of the actual expenses that the simplified method replaces.
An adjustment for the simplified amount must then be made before finalising the Income Tax position.
If the taxpayer is unsure whether they will ultimately choose Simplified Expenses or actual costs, HMRC recommends creating digital records of all the actual expenses so the choice can still be made later. (GOV.UK)
That makes planning important.
For example, someone who thinks actual vehicle costs might be better should not stop recording fuel, insurance and servicing simply because they expect to use mileage.
At the end of the year, those records may be necessary to perform a meaningful comparison.
MTD Does Not Remove the Need for Supporting Records
Even when Simplified Expenses are used, the underlying evidence supporting the calculation still matters.
For mileage, that means records of qualifying business journeys.
For home working, it means being able to support the number of qualifying business hours.
For business premises, it means knowing how many people lived there during each period.
MTD simplifies some record keeping; it does not turn estimates without evidence into deductible expenses. (GOV.UK)
What About Landlords?
The main GOV.UK Simplified Expenses regime discussed above is directed at unincorporated businesses.
There is, however, a related mileage rule for unincorporated property businesses.
HMRC confirms that individual landlords can choose to use a fixed-rate mileage deduction for qualifying vehicle travel rather than actual vehicle running costs, subject to the relevant conditions. For 2026/27, that mirrors the current simplified mileage rates of 55p for the first 10,000 miles and 25p thereafter for cars and goods vehicles. (GOV.UK)
Landlords should not automatically assume that every self-employed Simplified Expenses rule applies identically to property income. The particular property-business rules must be considered separately.
What About Limited Companies?
A limited company cannot use the self-employed Simplified Expenses regime.
This remains true even if there is only one director and shareholder.
The company has its own rules for business travel, company vehicles, reimbursement of expenses, homeworking payments and costs incurred by directors or employees. (GOV.UK)
Therefore:
Sole trader claiming 55p Simplified Expenses
and
director claiming mileage from their limited company
may use similar-looking mileage figures, but legally and tax-wise they are different systems.
The underlying records and reporting treatment must follow the correct regime.
Actual Costs Can Be Better Even When They Are More Work
The purpose of actual-cost accounting is straightforward: identify what was really spent, establish the business proportion and claim the amount permitted by tax law.
This tends to become more attractive when:
vehicle acquisition costs are high;
business-use percentages are high;
running costs are unusually high;
significant capital allowances are available;
home-working costs substantially exceed the flat rate;
or
the private element of business premises is lower than HMRC’s standard adjustment.
Simplified Expenses tend to become more attractive where costs are modest, personal and business use are heavily mixed, record keeping would otherwise be cumbersome, or the HMRC rate happens to exceed the actual allowable proportion.
A £1,000 Difference in Expenses Is Not a £1,000 Difference in Your Pocket
Suppose Method A gives allowable expenses of £5,000 and Method B gives £6,000.
The £1,000 difference reduces taxable profit by another £1,000.
For a sole trader whose profits fall fully within the 20% Income Tax and 6% Class 4 NIC bands, the approximate additional tax/NIC saving could be:
£1,000 × 26% = £260
For someone whose income falls in a different tax band, the effect will be different.
Therefore, choosing a more complicated method to gain an additional £50 deduction may not justify hours of administration.
But an extra deduction of £5,000 or £10,000—particularly on a major vehicle purchase—can clearly justify a proper calculation.
Common Mistakes With Simplified Expenses
The most frequent errors are not complicated tax-planning mistakes. They are usually basic misunderstandings.
A taxpayer uses 55p mileage and then claims fuel again.
Someone claims mileage for every journey from home to a construction site without determining whether the travel actually qualifies.
A business claims capital allowances on a car and later tries to switch to the mileage method.
A home-based trader claims the £26 monthly flat rate but forgets that business telephone and internet costs can be considered separately.
A taxpayer uses the £1,000 Trading Allowance and then adds Simplified Expenses as well.
A director of a limited company uses the sole-trader Simplified Expenses rules for their company.
Or someone chooses the simplest calculation without checking whether the actual-cost method would produce a much larger deduction.
Each error can materially affect taxable profit.
A Practical Decision Process
Before choosing Simplified Expenses, perform the comparison in the correct order.
First, establish whether you are eligible. A sole trader or non-corporate partnership may qualify; a limited company does not.
Second, calculate the Simplified Expenses result.
Third, calculate the genuine actual-cost alternative, including the business proportion and any available capital allowances or vehicle acquisition relief.
Fourth, compare not only the deduction but also the record-keeping burden.
Fifth, consider future years. This is particularly important for vehicles because selecting simplified mileage effectively fixes the method for that vehicle while it remains in the business.
Finally, retain the evidence supporting whichever method is used.
HMRC provides a Simplified Expenses checker to help compare the methods. However, HMRC currently warns that the checker is being updated: it gives accurate results for the simplified mileage rates, but not for vehicle costs generally. It should therefore be treated as a guide rather than a substitute for a full vehicle-cost calculation. (GOV.UK)
Quick Examples: Which Method Is Likely to Win?
Example A – Tradesperson with inexpensive car and high mileage
Business mileage is 9,500 miles.
Simplified deduction:
9,500 × 55p = £5,225
Actual business share of total vehicle costs is only £4,100.
Simplified Expenses are likely to be better.
Example B – Builder buys an expensive van
Business mileage is 6,000 miles.
Simplified deduction:
6,000 × 55p = £3,300
But the builder has just purchased a £28,000 van and has substantial business use.
The actual-cost method may provide significantly greater relief because the treatment of the vehicle acquisition itself must be included.
Actual costs need serious consideration before choosing mileage.
Example C – Self-employed accountant works from home
The accountant works at home for 120 hours every month.
Simplified household running-cost deduction:
£26 × 12 = £312
Actual allowable household running costs are calculated at £240.
Simplified Expenses are likely to be better and easier.
Business telephone and internet costs can still be considered separately.
Example D – Home-based online business with high electricity usage
A business operates specialised equipment from home and uses significant electricity.
The simplified rate is still:
£312 for the year
but the properly calculated business portion of household running costs is £1,100.
Actual expenses could be substantially better.
The nature of the business matters—not merely the number of hours worked.
Final Checklist Before Choosing Simplified Expenses
Before submitting the claim, check:
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Am I a sole trader or eligible non-corporate partnership?
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Is this expense actually covered by Simplified Expenses?
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For a vehicle, have I ever claimed capital allowances or the purchase cost?
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Have I calculated only genuine qualifying business mileage?
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Have I included the new 55p rate from 6 April 2026?
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Have I avoided claiming fuel, insurance and servicing again on top of mileage?
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Have I considered separately allowable parking, tolls and congestion charges?
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For home working, do I meet the 25-hour monthly threshold?
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Have I considered telephone, broadband and eligible fixed home costs separately?
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Have I compared the flat-rate result with actual costs before making the final decision?
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If MTD ITSA applies, are my digital records sufficient if I later decide to use actual costs?
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Am I using normal expenses rather than also claiming the £1,000 Trading Allowance?
Verdict: When Are Simplified Expenses Worth Using?
Simplified Expenses are excellent when they remove administrative work without sacrificing a valuable deduction.
For vehicle mileage, the new 55p rate for the first 10,000 business miles from 6 April 2026 makes the simplified method considerably more attractive than it was previously. (GOV.UK)
For someone driving an inexpensive or already-owned vehicle over substantial qualifying business mileage, the mileage method can be both simpler and financially attractive.
For someone buying an expensive van or qualifying electric car, however, automatically choosing mileage could sacrifice significant tax relief.
For working from home, HMRC’s £10, £18 and £26 monthly rates provide an extremely easy calculation, but the maximum annual running-cost deduction of £312 can be modest compared with genuine costs for someone operating extensively from home. (GOV.UK)
And for someone living at their business premises, the flat-rate adjustment can be excellent—but only if HMRC’s assumed private-use amount produces a better result than the real private-use calculation.
The Golden Rule
Do not choose Simplified Expenses simply because they are simpler. Calculate both methods first. Use the flat rate when it gives a sensible result and saves unnecessary administration; use actual costs when the additional evidence produces materially greater tax relief.
How DCTaxAgent Can Help
DCTaxAgent can assist sole traders, CIS subcontractors, landlords and partnerships with:
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comparing Simplified Expenses against actual costs;
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calculating 2026/27 business mileage using the new 55p rate;
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reviewing construction-site travel and CIS subcontractor mileage;
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calculating actual vehicle expenses;
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reviewing capital allowances for cars and vans;
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comparing electric-vehicle tax treatments;
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calculating business use of home;
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separating personal and business household expenditure;
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setting up mileage and expense records in MTD-compatible software;
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reviewing Trading Allowance versus actual expense claims;
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preparing MTD ITSA quarterly updates;
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preparing Self Assessment tax returns;
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correcting previous expense claims where the wrong method was used.
WhatsApp: 07587 532646
Website: www.dctaxagent.co.uk
Disclaimer
This article is intended for general informational and educational purposes.
It does not constitute personalised tax, accounting, legal, VAT, Capital Gains Tax or financial advice.
The most beneficial method depends on the individual’s accounting basis, business use, vehicle type and acquisition date, capital allowance position, mileage, household costs, tax band, National Insurance position and other circumstances.
Vehicle travel must independently satisfy the normal tax rules before mileage can be claimed. A flat mileage rate does not convert private or non-qualifying travel into an allowable business expense.
The information reflects official HMRC and GOV.UK guidance available on 7 August 2026.
