VAT Flat Rate Scheme Calculator for Architect, civil and structural engineer or surveyor
For sole-practice and small-firm architects, civil and structural engineers, building surveyors, and property surveyors registered for VAT.
Why this matters for architect, civil and structural engineer or surveyor
The 14.5% FRS rate covers architects, civil and structural engineers, and surveyors. Software (CAD, BIM, Revit, AutoCAD) is the dominant non-payroll cost — and being SaaS-licensed counts as services for LCT purposes, leaving most practices over the LCT line.
A sole-practice architect billing £85,000 net might reclaim £500–£1,200 of input VAT (CAD subscriptions, surveys, occasional plotter / hardware). FRS at 14.5% beats Standard only when input VAT is under ~£2,210 (2.6% of net).
Limited Cost Trader trap
High risk — most caughtCAD/BIM subscriptions, professional body fees, indemnity insurance, and printing services all count as services. Plotters, ink, paper, and physical equipment are goods — but rarely add up to enough to clear the 2%/£1,000 threshold for a digital-first practice.
Calculator (pre-selected for architect, civil and structural engineer or surveyor)
HMRC publishes 51 sector rates from 4% (food retail) to 14.5% (IT, accountancy, legal). Pick the one that best matches your main business activity.
Joining threshold: £150,000.
The 20% VAT on your business purchases (software, equipment, professional fees, stock). Leave blank or use 0 for service businesses with low purchases.
Goods only — excludes services, capital items, food/drink for staff, fuel (except transport sector). If this is below 2% of your gross turnover OR below £1,000/year, your rate becomes 16.5%.
Architect, civil and structural engineer or surveyor
16.5%
Industry base rate
14.5%
Limited Cost Trader
16.5% (override)
First-year discount
Not applied
Standard scheme — VAT to HMRC
£11,500.00£12,000.00 output − £500.00 input
FRS — VAT to HMRC
£11,880.00£72,000 gross × 16.5%
Annual difference
-£380.00
Standard pays HMRC less
Stay on the Standard scheme. You reclaim more input VAT than FRS would save you — switching would cost £380.00 per year.
Break-even: at input VAT of £120 (0.2% of net turnover), the two schemes pay HMRC the same. Below that, FRS wins; above, Standard wins.
Worked example: £60,000 net turnover
Output VAT charged
£12,000
£60,000 × 20% (what customers pay you in VAT)
FRS payable to HMRC
£10,440
£72,000 gross × 14.5%
Break-even input VAT
£1,560
2.6% of £60,000 net — below this, FRS wins
In your first year of VAT registration, the 1% discount drops your effective rate from 14.5% to 13.5%, raising the break-even threshold to 3.8% of net turnover. Use the calculator above with your actual turnover and input VAT figures.
Frequently asked questions
I subcontract structural calcs to other engineers. Are those services or goods?
Are surveying instruments (theodolite, GPS units, drone) goods that count for the LCT test?
What is the FRS rate for architect, civil and structural engineer or surveyor?
What is the break-even input VAT for architect, civil and structural engineer or surveyor on FRS?
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Sources
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